CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED patent applications on February 27th, 2025
Patent Applications by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED on February 27th, 2025
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED: 110 patent applications
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED has applied for patents in the areas of H01M4/02 (31), H01M4/62 (19), H01M4/04 (16), H01M4/36 (13), H01M10/42 (12) H01M4/366 (6), H01M50/3425 (6), H01M10/4235 (4), H01M50/586 (4), H01M4/623 (3)
With keywords such as: electrode, battery, plate, cell, layer, negative, material, assembly, positive, and active in patent application abstracts.
Patent Applications by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
Inventor(s): Renyu CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jinwu WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xuenan CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): B05C5/02, H01M50/26
CPC Code(s): B05C5/02
Abstract: provided is a glue application apparatus. the glue application apparatus includes: an outer housing, where a first end of the outer housing is provided with a first opening, and a second end opposite to the first end is provided with a glue injection hole; and an inner housing, where the inner housing is accommodated in the outer housing, an end of the inner housing close to the first opening is a third end, a flow channel exists between the inner housing and the outer housing, and the third end of the inner housing and an opening face of the first opening form a glue outlet, so that a colloid flows from the glue injection hole to the glue outlet through the flow channel.
Inventor(s): Zhimin Zheng of Ningde (CN) for contemporary amperex technology (hong kong) limited, Linggang Zhou of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xu Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): B60L53/63, B60L53/62, H02J3/00, H02J7/00
CPC Code(s): B60L53/63
Abstract: provided are a method for controlling electric power and a charging and discharging system. the method includes: acquiring first data, the first data being configured to indicate electricity consumption information of a power grid; and controlling the electricity consumption device to acquire electric energy from the power grid or to transmit the electric energy to the power grid through the charging and discharging device according to the first data in a case where an electricity consumption device is connected to a charging and discharging device. the technical solution of the present application is beneficial to achieving a reasonable allocation of electric power.
Inventor(s): Dailing WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shengwei WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Tiansheng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): B60L58/19, H01M10/42, H01M10/44, H01M50/204, H01M50/296, H01M50/512
CPC Code(s): B60L58/19
Abstract: a battery system, includes: a first output terminal and a second output terminal; a first battery and a second battery, in which, a first electrode of the first battery and a first electrode of the second battery are connected to the first output terminal, a second electrode of the first battery and a second electrode of the second battery are connected to the second output terminal; and a first unidirectional conduction element and a second unidirectional conduction element, in which, one electrode of the first battery is connected to the first output terminal or the second output terminal corresponding to the one electrode of the first battery through the first unidirectional conduction element; and one electrode of the second battery is connected to the first output terminal or the second output terminal corresponding to the one electrode of the second battery through the second unidirectional connection element.
Inventor(s): Xiaoxia CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yu MA of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xinxin ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chuying OUYANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaoji ZHENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shangdong CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenguang LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): C01B32/05
CPC Code(s): C01B32/05
Abstract: a carbonaceous material contains element o, where the content of element o of the carbonaceous material tested by x-ray photoelectron spectroscopy is denoted as a, the content of element o of the carbonaceous material tested by elemental analysis is denoted as b, and the carbonaceous material satisfies a/b≥3 and 5 wt %≤a≤20 wt %.
Inventor(s): Hailin ZOU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peipei CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): C07F5/02, H01M4/02, H01M4/131, H01M4/505, H01M4/62, H01M10/0525
CPC Code(s): C07F5/022
Abstract: this application provides a compound of formula (i) that has good adsorption ability on the surface of a metal and a substance containing metal ions, and that, when applied to secondary batteries, can help improve cycling performance and service life of the secondary batteries. this application further provides a secondary battery, a battery module, a battery pack, an electric apparatus, and a preparation method thereof.
Inventor(s): Changyuan HU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lei LU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yalong WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zheng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): C08F36/06, C08K5/37, H01M4/04, H01M4/62
CPC Code(s): C08F36/06
Abstract: a resin composition includes a main polymer and a crosslinking agent. the crosslinking agent is represented by formula (a). aris an aromatic group containing 6 to 50 ring atoms, each lis independently selected from one or more of a single bond, a cto calkylene, or a dynamic covalent bond group, and each nis independently selected from integers from 1 to 3. a structural unit of the main polymer contains a structure represented by formula (1). the main polymer contains no aromatic group.
Inventor(s): Changyuan HU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lei LU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yalong WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zheng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): C08F36/06, C08K5/37, H01M4/04, H01M4/62
CPC Code(s): C08F36/06
Abstract:
Inventor(s): Wei FENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Huihui LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chuying OUYANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengdong SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenshuai ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shuai ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Huanhuan ZUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yongbin ZHOU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): C08F214/22, C08F212/08, C08F220/06, C09D5/00, C09D125/16, C09D127/16, C09D133/08
CPC Code(s): C08F214/225
Abstract: a core-shell polymer comprises a core portion and a shell portion that at least partially covers the core portion. the core portion comprises a structural unit derived from a monomer represented by formula i, and the shell portion comprises a structural unit derived from a monomer represented by formula i, a structural unit derived from a monomer represented by formula ii, and a structural unit derived from a monomer represented by formula iii, wherein r, rand rare each independently selected from hydrogen, fluorine, chlorine or calkyl containing at least one fluorine atom, r, r, r, r, r, rare each independently selected from hydrogen or substituted or unsubstituted calkyl, and ar is substituted or unsubstituted aryl.
Inventor(s): Zipeng ZENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Cheng LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Huihui LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jingming WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): C08F214/28, H01M4/02, H01M4/62
CPC Code(s): C08F214/28
Abstract: a bab-type block copolymer comprises a b-block and an a-block, the b-block contains a structural unit represented by formula i, and the a-block contains one or more of a structural unit represented by formula ii and a structural unit represented by formula iii, where r, rand rare each independently selected from one or more of hydrogen, fluorine, and calkyl containing at least one fluorine atom, r, rand rare each independently selected from hydrogen and substituted or unsubstituted calkyl, and ris selected from carboxyl, an ester group, hydroxyl, amido, cyano, and a substituted or unsubstituted aromatic group.
Inventor(s): Chong XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jianrui YANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Cheng LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): C08J5/18, C08J9/20, H01M50/403, H01M50/417, H01M50/491
CPC Code(s): C08J5/18
Abstract: a polyolefin-based film is described. through optimization of tortuosity of a pore structure in the polyolefin-based film, the polyolefin-based film has a uniform pore structure, thereby improving consistency of the base film, reducing performance deviation of the base film, and effectively ensuring air permeability of the base film. additionally, the polyolefin-based film of this application is ultra-thin. for every 1 �m reduction in thickness, energy density of a battery cell can increase by approximately 0.7%. therefore, with the thickness controlled to be below 7 �m, the energy density of the battery cell is improved. when the polyolefin-based film is used as a separator in a battery, electrical performance of the battery can be improved, including reducing battery internal resistance, direct current resistance, self-discharge rate, short-circuit rate, and the like. this application further relates to a preparation method of the polyolefin-based film, a separator, a secondary battery, and an electric apparatus.
Inventor(s): Yu LUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Kun WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qiuhua XIAO of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/04, B05C11/00
CPC Code(s): H01M4/0404
Abstract: a manufacturing method includes: applying an electrode slurry to a first surface of a current collector to form a first electrode layer on the first surface; performing a first drying operation on the current collector with the first electrode layer formed thereon to dry the first electrode layer; applying the electrode slurry to a second surface of the current collector after the first drying operation to form a second electrode layer on the second surface, the second surface being opposite the first surface; performing a second drying operation on the current collector having the first electrode layer and the second electrode layer formed thereon to dry both the first electrode layer and the second electrode layer; and performing a compensation drying operation on the second electrode layer of the current collector.
Inventor(s): Jianlei Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jingjing Wei of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ruhu Liao of Ningde (CN) for contemporary amperex technology (hong kong) limited, Gang Zeng of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quanshui Cai of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ya Dai of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guangsheng Chen of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/04, B05C11/02, B05C21/00
CPC Code(s): H01M4/0435
Abstract: provided are a marking device and a lamination manufacturing system. the marking device includes an attachment mechanism, a coating mechanism, and a stripping mechanism, wherein the attachment mechanism is configured to attach shielding members to a marking area of a base material; the coating mechanism is arranged downstream of the attachment mechanism along a conveying direction of the base material, and the coating mechanism is configured to coat the base material; and the stripping mechanism is arranged downstream of the coating mechanism along the conveying direction, and the stripping mechanism is configured to detach the shielding members from the base material to form scores on the marking area.
Inventor(s): Zhi LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ning CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yaqian DENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ruijing LV of Ningde (CN) for contemporary amperex technology (hong kong) limited, Dongyang SHI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Baiqing LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/13, H01M4/02, H01M10/0525, H01M10/0587, H01M10/42
CPC Code(s): H01M4/13
Abstract: an electrode plate includes a current collector and an active substance layer. a surface of the active substance layer is configured to form a concave surface of a bending layer is depressed inwardly and is provided with multiple buffer spaces, and the multiple buffer spaces are arranged to not penetrate through the current collector.
Inventor(s): Xiaomei Liu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengfeng Li of Ningde (CN) for contemporary amperex technology (hong kong) limited, Longfei Yang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yongai Chen of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/13, H01M4/02, H01M4/04, H01M4/139, H01M4/62
CPC Code(s): H01M4/13
Abstract: provided are a negative electrode plate and a preparation method thereof, a secondary battery, a battery module, a battery pack, and an electric apparatus. the negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector, where the negative electrode film layer includes a negative electrode active material layer, a lithium supplement layer, and a polymer layer that are stacked. the negative electrode active material layer is located on the negative electrode current collector, the lithium supplement layer is located on a side of the negative electrode active material layer back away from the negative electrode current collector, and the polymer layer is located on a side of the lithium supplement layer back away from the negative electrode active material layer.
Inventor(s): Tao ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jianfu HE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qian LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yonghuang YE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chen CUI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/13, H01M4/02
CPC Code(s): H01M4/13
Abstract: a battery cell, a battery, and an electrical device are disclosed. the battery cell includes a housing and at least 3 electrode assemblies. a cavity is defined in the housing. the cavity includes a first region and a second region. the first region is closer to the housing than the second region. the at least 3 electrode assemblies are disposed in the cavity. a capacity of a single electrode assembly located in the first region is cap, a capacity of a single electrode assembly located in the second region is cap, and capis greater than cap. by controlling capto be greater than cap, the electrode assembly in the second region contains more active lithium than the electrode assembly in the first region.
Inventor(s): Xiaofu Xu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chenxu Luo of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jianfu He of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jingxuan Sun of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qian Liu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yonghuang Ye of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/131, H01M4/02, H01M4/136, H01M4/525, H01M4/58, H01M10/0525
CPC Code(s): H01M4/131
Abstract: this application provides a positive electrode plate, a secondary battery, and an electrical device. the positive electrode plate may be a positive electrode plate applicable to a jelly-roll cell, and includes a waist region close to a waist and an end region far away from the waist. the waist region includes a first positive electrode film, and the end region includes a second positive electrode film. the positive electrode plate may be a positive electrode plate applicable to a stacked type cell, and includes a center region close to a center and an edge region far away from the center. the center region includes a first positive electrode film, and the edge region includes a second positive electrode film.
Inventor(s): Qifan WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ming ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/583, H01M4/02, H01M4/36, H01M4/62, H01M4/64, H01M10/052
CPC Code(s): H01M4/583
Abstract: a negative electrode plate includes: a negative electrode current collector, and a negative electrode film layer located on at least one surface of the negative electrode current collector and including first and second negative electrode active material particles. the first negative electrode active material particles includes adsorption holes and have a tap density of 0.4 g/cm-1.4 g/cm. the second negative electrode active material particles have a layered structure and a tap density of 0.05 g/cm-1.5 g/cm. based on the total mass of the first and second negative electrode active material particles, a mass percentage of the first negative electrode active material particles is in the range of 70%-95%, and a mass percentage of the second negative electrode active material particles is in the range of 5%-30%. a compaction density pd of the negative electrode film layer satisfies: 0.8 g/cm≤pd≤1.3 g/cm.
Inventor(s): Manman WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaoming GE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chuying OUYANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/36, H01M4/02, H01M4/04, H01M4/46
CPC Code(s): H01M4/366
Abstract: a conductive film includes: a substrate, where the substrate has a first surface and a second surface facing away from each other, and the substrate has a dense structure; and a first porous layer, where the first porous layer is stacked and bonded to the first surface of the substrate; the first porous layer includes a porous conductive material; and the porous conductive material has pores with first pore size and pores with second pore size; the first pore size being n micrometers, where 0.5≤n≤10; and the second pore size being m nanometers, where 20<m<200.
Inventor(s): Chen ZENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Meng KANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Libing; HE of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/36, H01M4/02, H01M4/587
CPC Code(s): H01M4/366
Abstract: this application relates to a negative electrode active material. the negative electrode active material includes a core structure and a shell structure disposed around surface of the core structure, the core structure and the shell structure both have pores, and an average pore size of pores in the shell structure is greater than an average pore size of pores in the core structure. the negative electrode active material of this application can provide excellent kinetic performance under the condition of high compacted density. when used in a battery, this negative electrode active material can increase the energy density of the battery and achieve the objective of fast charging.
Inventor(s): Yuefei CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jiali JIANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guoan MAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Junqi CAO of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/36, H01M4/02, H01M4/58
CPC Code(s): H01M4/366
Abstract: the present application relates to the technical field of batteries, and in particular, to a battery electrode plate, an electrode plate assembly, a battery, and an electrical device. the battery electrode plate of the present application comprises a current collector, at least one surface of the current collector being provided with a first coating area, the first coating area being provided with an active material layer, and the active material layer comprising a first active material layer, a second active material layer, and a third active material layer that are connected sequentially from top to bottom along the height direction of the current collector, wherein the attenuation speed of the active material of the second active material layer is smaller than that of the active material in any one of the first active material layer and the third active material layer.
Inventor(s): Wenlong Bai of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yiyang Wu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Baozhen Wu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yonghuang Ye of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xingyan You of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuwen Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wei Zheng of Ningde (CN) for contemporary amperex technology (hong kong) limited, Kai Wu of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/36, H01M4/02, H01M4/48, H01M4/58, H01M4/587, H01M4/62
CPC Code(s): H01M4/366
Abstract: the present application provides a composite negative electrode active material and a preparation method therefor, a negative electrode plate comprising same, a secondary battery and a power consuming device. the composite negative electrode active material comprises a negative electrode active material substrate and a conductive polymer layer on the surface of the negative electrode active material substrate, wherein the cyclic voltammetry curve of the composite negative electrode active material has an oxidation peak within a range of 3.2 v-3.6 v and a reduction peak within a range of 2.1 v-2.6 v. the composite negative electrode active material provided by the present application can combine a low volume expansion, a high capacity per gram and a high initial coulombic efficiency, thus enabling a secondary battery to combine a low volume expansion, a high energy density and a long cycle life.
Inventor(s): Chang Peng of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peipei Chen of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhenguo Zhang of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/36, H01M4/505, H01M4/62, H01M10/0525, H01M10/0567, H01M10/0569, H01M10/42
CPC Code(s): H01M4/366
Abstract: a secondary battery is disclosed. the secondary battery includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte solution. the positive electrode plate includes a positive active material. the positive active material includes a core and a coating. a manganese content of the core is greater than or equal to 25% based on a mass of the core. the coating overlays a surface of the core and contains one or more of an oxide, hydroxide, or oxyacid salt of element x. the element x is one or more selected from al, b, or p. a mass ratio of the coating to the core is 1:(5 to 100), and optionally 1:(16 to 100). the electrolyte solution contains a first solvent. the first solvent is one or more selected from a fluorocarbonate ester, a fluorocarboxylate ester, a fluorosulfone, a fluoroether, or a fluorobenzene.
Inventor(s): Yaxi TIAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Daichun TANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xitong WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Tingzhen JI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yurun XIA of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiong QIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/36, H01M4/02
CPC Code(s): H01M4/366
Abstract: this application discloses a negative electrode plate and a preparation method thereof, a secondary battery, a battery pack, and an electric apparatus. the negative electrode plate includes a negative electrode current collector and a negative electrode material layer disposed on at least one surface of the negative electrode current collector. the negative electrode material layer includes a negative electrode active substance, and the negative electrode material layer has a structure in which high-compacted-density regions and low-compacted-density regions are consecutively and alternately spaced apart, a density difference of the negative electrode active substances in the high-compacted-density regions and low-compacted-density regions being 0.1 g/cm-0.6 g/cm.
Inventor(s): Kai WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jingxian DENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jiazheng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zijian LV of Ningde (CN) for contemporary amperex technology (hong kong) limited, Liangbin LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuan LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/38, H01M4/02, H01M4/04, H01M4/583
CPC Code(s): H01M4/386
Abstract: a silicon carbon negative material is provided. the silicon carbon negative material includes a porous carbon base, nano-silicon crystal grains located in pores of the porous carbon base, and a carbon coating layer located on a surface of the porous carbon base. the nano-silicon crystal grains include an elemental silicon core and a lisicoating layer, x is an integer selected from 7 to 22, and y is an integer selected from 3 to 7.
Inventor(s): Sheng LI of Ningle (CN) for contemporary amperex technology (hong kong) limited, Huan NI of Ningle (CN) for contemporary amperex technology (hong kong) limited, Hua ZHONG of Ningle (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/525, C01G53/00, H01M4/02, H01M4/04, H01M4/505
CPC Code(s): H01M4/525
Abstract: this application provides a positive electrode active material including particles a and particles b, where the particles a have a monocrystalline or monocrystalline-like structure, and the particles b are secondary particles including a plurality of primary particles. d50 of the particles a is less than d50 of the particles b, and a mass percentage of the particles a is greater than or equal to a mass percentage of the particles b, where d50 denotes a particle size corresponding to a cumulative volume distribution percentage of a material reaching 50%.
Inventor(s): Youcai DING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Pengfei GAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yanpeng LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yizhen WU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/58, H01M4/02, H01M4/04, H01M4/36, H01M4/62
CPC Code(s): H01M4/58
Abstract: batteries that include a composite electrode, and a preparation method thereof, and an electrical device are disclosed. an example composite electrode includes a current collector, a first active layer, and a second active layer. the first active layer is disposed on the current collector. the second active layer is disposed on one side, oriented away from the current collector, of the first active layer. the first active layer includes a lithium manganese iron phosphate material. at least a part of a surface of the lithium manganese iron phosphate material is coated with a conductive coating material. a mass of the conductive coating material is 1% to 10% of a mass of the lithium manganese iron phosphate material. the conductivity of the lithium manganese iron phosphate material is improved by the conductive coating material.
Inventor(s): Yuejuan WAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xinxin ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chuying OUYANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jiadian LAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jixiang WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/58, C01C3/12, H01M4/02, H01M10/054
CPC Code(s): H01M4/5825
Abstract: a positive electrode active material, including a boron-doped prussian blue analog; and the prussian blue analog has a chemical formula of aambm′c(cn)�dho, in which a includes at least one of an alkali metal cation, an alkaline earth metal cation, zn, and al, m and m′ each independently includes at least one of ni ion, cu ion, fe ion, mn ion, co ion, and zn ion, and ho is coordination water, 0<a≤2, 0<b≤1, 0<c≤1, 0≤d≤2; and relates to a preparation method, a secondary battery, and an electrical device. the stability of the positive electrode active material is improved, and thus improving a cycle performance of the corresponding secondary battery; and the preparation method of the positive electrode active material is simple in operation, mild in reaction conditions, and convenient for industrial application.
Inventor(s): Congsu NIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaowei LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaomei LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/58, H01M4/02, H01M4/36, H01M4/583
CPC Code(s): H01M4/5825
Abstract: the present application provides a battery cell, a battery, and an electrical device, belonging to the field of battery technology. the battery cell includes a positive electrode sheet and an electrolyte solution. a coating mass of a positive electrode active material layer on a single side of the positive electrode sheet is 410 mg/1540.25 mmto 550 mg/1540.25 mm, and a membrane resistance of the positive electrode sheet is ≥1�. a conductivity of the electrolyte solution is ≤14 ms/cm. the battery cell has thick coated electrode sheets, where the lower membrane resistance of the positive electrode sheet indicates its higher conductivity, which is conducive to reducing solid-state ohmic resistance of the battery cell. the higher conductivity of the electrolyte solution is conducive to reducing liquid-phase ohmic impedance of the battery and alleviating concentration polarization to some extent.
Inventor(s): Kai WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuan LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaobin DONG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jiazheng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Liangbin LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zijian LV of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuwei QIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/583, H01M4/02, H01M4/04, H01M4/36, H01M4/38, H01M10/052
CPC Code(s): H01M4/583
Abstract: a silicon-carbon composite material and a preparation method thereof, a negative electrode plate, and a secondary battery are disclosed. the silicon-carbon composite material includes a porous carbon matrix and silicon-based particles. the porous carbon matrix internally includes a plurality of pore channels with a width of 5 nm-50 nm. the silicon-based particles are distributed in the pore channels, and the porous carbon matrix meets: 1.0�10≤v/s≤10.0�10, where sis the total surface area occupied by the pore channels with the width of 5 nm-50 nm, and the measurement unit is: �10cm/g; and vis the total pore volume occupied by the pore channels with the width of 5 nm-50 nm. the silicon-carbon composite material has high electrical conductivity. when being applied to a negative electrode of the secondary battery, the silicon-carbon composite material can effectively increase the volume capacity and energy density of the secondary battery.
Inventor(s): Liangbin LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuan LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jiazheng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zijian LV of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaobin DONG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Donggen XIONG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jingxian DENG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/583, H01M4/02, H01M4/04, H01M4/38, H01M10/052
CPC Code(s): H01M4/583
Abstract: this application relates to a silicon-carbon composite material. the silicon-carbon composite material includes a carbon nanotube-and-porous carbon composite substrate and a silicon-based material. the porous carbon is connected to the carbon nanotube by a connecting unit in the carbon nanotube-and-porous carbon composite substrate. the high conductivity and strong mechanical properties of the carbon nanotubes can improve the overall conductivity, compression resistance, and expansion resistance of the silicon-carbon composite material, thereby improving cycle performance, electrode plate cycle expansion resistance, and rate performance of a secondary battery.
Inventor(s): Ningbo XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peipei CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62, H01M4/02, H01M4/04, H01M4/36, H01M4/58, H01M4/583, H01M10/052
CPC Code(s): H01M4/62
Abstract: this application provides a modified negative electrode material, a preparation method therefor, a negative electrode plate, a secondary battery, and an electrical device. the modified negative electrode material includes a negative electrode active substrate and a silicate ester group connected to the negative electrode active substrate through an oxygen atom, and a structure of the silicate ester group is shown in formula (1), wherein each ris independently selected from substituted or unsubstituted alkyl having 1 to 10 carbon atoms, or substituted or unsubstituted alkenyl having 1 to 10 carbon atoms; and * represents a connecting site.
Inventor(s): Ningbo XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peipei CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62, H01M4/02, H01M4/04, H01M4/36, H01M4/58, H01M4/583, H01M10/052
CPC Code(s): H01M4/62
Abstract:
Inventor(s): Zhipeng DAI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Miaomiao REN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chao JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zirui WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guanfusheng YAN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62
CPC Code(s): H01M4/622
Abstract: this application relates to a binder, an electrode plate, a secondary battery, and an electric apparatus. a modified polyacrylic acid polymer material has the following structural features. the foregoing modified polyacrylic acid polymer material employs polymerization of four monomers: an acrylic acid, an alkaline metal salt of acrylic acid, a polyethylene glycol acrylate monoester, and acrylonitrile, and is capable of acting as a binder, fully coating the active material in the process of mixing with the active material, lowering the rebound of the electrode plate under extreme design conditions, reducing the cell expansion force during cycling, and increasing the cell life.
Inventor(s): Zhipeng DAI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Miaomiao REN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chao JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zirui WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guanfusheng YAN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62
CPC Code(s): H01M4/622
Abstract:
Inventor(s): Shaohua AI of Ningde, Fujian (CN) for contemporary amperex technology (hong kong) limited, Chengdong SUN of Ningde, Fujian (CN) for contemporary amperex technology (hong kong) limited, Yi ZHENG of Ningde, Fujian (CN) for contemporary amperex technology (hong kong) limited, Yu CHEN of Ningde, Fujian (CN) for contemporary amperex technology (hong kong) limited, Qi ZENG of Ningde, Fujian (CN) for contemporary amperex technology (hong kong) limited, Yuxi ZHANG of Ningde, Fujian (CN) for contemporary amperex technology (hong kong) limited, Xin ZHOU of Ningde, Fujian (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62, H01M4/02, H01M4/04, H01M4/13, H01M4/139, H01M10/0587
CPC Code(s): H01M4/622
Abstract: the present application discloses an electrode slurry, comprising an electrode active material, a binder composition and a solvent; the binder composition comprises a thermally crosslinked polymer and a thermal crosslinking agent, wherein the thermally crosslinked polymer comprises one or more of an epoxy resin, an acrylic-capped prepolymer and an acrylate-capped prepolymer.
Inventor(s): Qi XING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengdong SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Huihui LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lianwei DUAN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62, H01M4/02, H01M4/04, H01M4/525, H01M4/58, H01M10/052
CPC Code(s): H01M4/623
Abstract: a preparation method of a positive electrode slurry includes a first stirring, a second stirring, a third stirring and a fourth stirring. in the first stirring, a positive electrode active material, a conductive agent and a first binder are mixed and stirred to prepare a dry mixture. in the second stirring, a second binder and a solvent are mixed and stirred to prepare an adhesive solution. in the third stirring, the dry mixture and the adhesive solution are mixed and stirred to prepare a primary slurry. in the fourth stirring, a solvent and the primary slurry are mixed and stirred to prepare a positive electrode slurry. the weight average molecular weight of a polymer in the second binder is smaller than the weight average molecular weight of any polymer in the first binder.
Inventor(s): Wei FENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Huihui LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chuying OUYANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengdong SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shuai ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Huanhuan ZUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenshuai ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yongbin ZHUO of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62, C08F214/22, H01M4/04
CPC Code(s): H01M4/623
Abstract: a fluoropolymer includes a structural unit derived from a monomer of formula i, a structural unit derived from an olefin monomer, and a structural unit derived from a monomer of formula ii. a molar content of the structural unit derived from the monomer of formula i is in a range of 60% to 80% based on a total mole of the structural units in the fluoropolymer, wherein r, rand reach are independently selected from hydrogen, fluorine, chlorine, or calkyl containing at least one fluorine atom, and r, rand reach are independently selected from hydrogen, or substituted or unsubstituted calkyl.
Inventor(s): Qi XING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chuying OUYANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengdong SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Huihui LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62, H01M4/02, H01M4/139
CPC Code(s): H01M4/623
Abstract: a preparation method of a positive electrode slurry includes a first stirring, a second stirring, a third stirring and a fourth stirring. in the first stirring, a positive electrode active material and a binder are mixed and stirred to prepare a dry mixture. in the second stirring, a binder and a solvent are mixed and stirred to prepare an adhesive solution. in the third stirring, the dry mixture and the adhesive solution are mixed and stirred to prepare a primary slurry. in the fourth stirring, a positive electrode active material, a conductive agent, a solvent and the primary slurry are mixed and stirred to prepare a positive electrode slurry. the binder used in the first stirring is the same as the binder used in the second stirring.
Inventor(s): Yuxi ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62, B01J13/18, H01M4/02, H01M4/04
CPC Code(s): H01M4/625
Abstract: an expandable microbead having a core-shell structure, wherein the shell is made of melamine resin, and the core is mainly made of a foamable azo compound is disclosed. an electrode plate, comprising a safe conductive coating coated on a surface of a current collector is also described. the above-mentioned expandable microbead is used for the coating, thereby favorably preventing thermal runaway caused by abnormal battery temperature rise, and improving the safety performance of a lithium-ion battery.
Inventor(s): Shangju LIAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bobing HU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Hansen WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyong LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaolan CAI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuan LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qifan WU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/62, H01M4/02, H01M4/04, H01M4/36, H01M4/587
CPC Code(s): H01M4/628
Abstract: a negative electrode plate includes a negative electrode active material layer. the negative electrode active material layer includes a negative electrode active substance and lithium-philic nanoparticles capable of alloying with lithium. a secondary battery includes a positive electrode plate, the negative electrode plate, and a separator provided between the positive electrode plate and the negative electrode plate.
Inventor(s): Chao JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yonghuang YE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Miaomiao REN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guanfusheng YAN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/66, H01M4/02
CPC Code(s): H01M4/662
Abstract: provided are a positive electrode sheet, a secondary battery, and an electrical device. the positive electrode sheet includes: a positive electrode current collector; a primer layer, located on at least one side of the positive electrode current collector, including a conductive agent and a binder; a positive electrode active substance layer, located on one side of the primer layer far away from the positive electrode current collector, including a positive electrode active material; wherein a thickness of the primer layer is denoted as l, and the thickness of the primer layer satisfies: 0.1≤l/(dv50−5)*(pd/3.5)≤0.5; wherein dv50 represents a corresponding particle size when a cumulative particle size distribution number of particles in a volume distribution of the positive electrode active material reaches 50%, and a unit of dv50 is �m; pd represents a compacted density of the positive electrode sheet, and a unit of pd is g/cm.
Inventor(s): Wenyan ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenhao GUAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaoming GE of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/66, H01M4/80
CPC Code(s): H01M4/667
Abstract: a negative electrode plate including a three-dimensional porous current collector and an insulation layer attached to a side of the three-dimensional porous current collector, where the insulation layer extends from a surface to an interior of the three-dimensional porous current collector, and a thickness of the insulation layer is less than a thickness of the three-dimensional porous current collector is described. a preparation method of the corresponding negative electrode plate, a secondary battery, and an electric apparatus is also described. the negative electrode plate can effectively prevent the growth of lithium dendrites on a surface of the negative electrode plate and inhibit the volume swelling of the electrode, thereby improving the cycling performance and safety performance of the battery.
Inventor(s): Jingxuan SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ying LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M4/66, H01M4/02, H01M4/13
CPC Code(s): H01M4/667
Abstract: the present disclosure discloses an electrode assembly, a cell, a battery, and an electrical device, which belongs to the field of batteries technologies. the electrode assembly includes a positive electrode plate, a negative current collector, and a support layer. the positive electrode plate and the negative current collector are arranged in a first direction. the negative current collector has a first side surface and a second side surface opposite to the first side surface in the first direction. the support layer is disposed on at least part of the first side surface and/or at least part of the second side surface of the negative current collector.
Inventor(s): Xiujie LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/04, H01M10/613, H01M10/615, H01M10/6554, H01M10/6567
CPC Code(s): H01M10/0404
Abstract: heating and curing device and heating and curing method are provided. the heating and curing device includes a heating assembly and a tray assembly. the heating assembly includes a support frame and a heat generating plate disposed at the support frame. the tray assembly includes a tray, a first positioning member, and a second positioning member. the tray carries a battery module and a water cooling plate. the first positioning member and the second positioning member are both disposed at the tray. the first positioning member positions the water cooling plate, and the second positioning member positions the battery module. the battery module and the water cooling plate are transferred together to the heating assembly. when the battery module and the water cooling plate are positioned by the tray assembly, the water cooling plate is heated by the heating assembly to facilitate curing of the adhesive.
Inventor(s): Xiaoyun Fan of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuanxin Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guotao Xie of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuan Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wucun Han of Ningde (CN) for contemporary amperex technology (hong kong) limited, Deming Lin of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhipeng Hu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Tao Cheng of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/04, G01B21/06
CPC Code(s): H01M10/0431
Abstract: this application provides an electrode plate slitting method and apparatus, an electronic device, and a storage medium. the method includes: obtaining a length of an electrode plate to be cut; and when it is determined that a slitting parameter meeting a preset condition exists based on the length of the electrode plate, cutting the electrode plate to be cut based on the slitting parameter to obtain the electrode plate after cutting. the preset condition includes: the slitting parameter is able to be used for cutting the electrode plate to be cut and a length of each electrode plate roll obtained after cutting is within a preset range. this decreases the probability of obtaining an electrode plate roll with an inappropriate length at the end of the cutting, reducing the waste in the electrode plate.
Inventor(s): Huaichao Tang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Longqing Peng of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ting Li of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/04, B60L50/64, H01M50/107
CPC Code(s): H01M10/0431
Abstract: provided are an electrode assembly, a battery cell, a battery, and an electrical equipment, which belongs to the battery technology field. the electrode assembly includes a first separator and a first electrode plate and a second electrode plate with opposite polarity. the first electrode plate, second electrode plate, and first separator are wound along the winding direction to form the electrode assembly with a first through hole. the first separator includes a first extension section extending into the first through hole; and the electrode assembly further includes a reinforcer, wherein the reinforcer is at least partially connected to the first extension section.
Inventor(s): Fenggang ZHAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhisheng CHAI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Hui GU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/04, H01M50/533
CPC Code(s): H01M10/0431
Abstract: an electrode assembly includes a first electrode plate and a second electrode plate that are of opposite polarities, and includes a separator disposed between the first electrode plate and the second electrode plate. the first electrode plate, the separator, and the second electrode plate are wound along a winding direction to form a jelly-roll structure. at least one of the first electrode plate or the second electrode plate includes: a current collector; an active material layer, disposed at least on a surface of the current collector on a side near the separator; and a tab portion, connected to one lateral edge of the current collector, where the lateral edge extends along the winding direction.
Inventor(s): Chenhui LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jianfu HE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qian LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yonghuang YE of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/04, H01M50/414, H01M50/491
CPC Code(s): H01M10/0468
Abstract: some embodiments of this application disclose a battery cell, a battery, and an electrical device. the battery cell includes: a shell; an electrode assembly, where the electrode assembly is disposed in the shell; an electrolyte solution, where the electrolyte solution fills the shell; and a cushion, where the cushion is accommodated in the shell and attached to the electrode assembly. the cushion includes a sealed bag and a cushion pad. the sealed bag covers a surface of the cushion pad.
Inventor(s): Hu XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shaojun NIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Fenggang ZHAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuqun ZENG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/04, H01M10/6556, H01M10/658, H01M50/242, H01M50/342
CPC Code(s): H01M10/0468
Abstract: a battery and an electric device are provided. the battery includes a battery module and a pressure applying component. the battery module includes one layer of battery row or a plurality of layers of battery rows laminate in a first direction. the battery row includes one battery cell or a plurality of battery cells arranged in a second direction, and a first surface, perpendicular to the first direction, of a housing of the battery cell is a surface having the largest area. the pressure applying component is provided on at least one side of the battery module in the first direction, the pressure applying component abuts against the first surface, and a position of the pressure applying component in the first direction is adjustable.
Inventor(s): Hailin ZOU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ningbo XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peipei CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0567, H01M10/054, H01M10/0568, H01M10/0569, H01M10/42
CPC Code(s): H01M10/0567
Abstract: an electrolyte solution for a sodium-ion secondary battery is described. by matching a first additive of a low-boiling-point sulfur-containing compound and a second additive of an oxalate-containing salt (a compound of formula (i)) and/or an oxalate ester (a compound of formula (ii)) in the electrolyte solution, stable interface passive films are formed on a positive electrode and a negative electrode, such that the self-discharge rate and the cycling performance of the battery are improved, and meanwhile, the battery has a good power performance. the present application further relates to a sodium-ion secondary battery comprising the electrolyte solution, a battery module, a battery pack, and a power consuming device.
Inventor(s): Hailin ZOU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ningbo XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peipei CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0567, H01M10/054, H01M10/0568, H01M10/0569, H01M10/42
CPC Code(s): H01M10/0567
Abstract:
Inventor(s): Hailin ZOU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peipei CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0567, H01M10/0569
CPC Code(s): H01M10/0567
Abstract: an electrolyte for secondary batteries includes an electrolyte salt, an organic solvent, and an additive, where the additive includes an amine compound and a sulfur-containing compound with a boiling point not greater than 70� c., where a mass percentage of the sulfur-containing compound in the electrolyte is 0.06% to 8%, optionally 0.08% to 6%, and a mass ratio of the sulfur-containing compound to the amine compound is 1:(0.08-13), optionally 1:(0.1-11), or further optionally 1:(0.5-2.5).
Inventor(s): Hansen WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyong LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Pan WAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shengyuan HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bobing HU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wu YANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0567, H01M4/66, H01M10/052, H01M10/0568, H01M10/0569, H01M10/42
CPC Code(s): H01M10/0567
Abstract: an electrolyte includes a solvent and a prelithiation additive, where the prelithiation additive is selected from at least one of the following: lithium salt with oxalate, lithium oxide, and lithium peroxide, and the solvent includes at least one compound of formula (i). ris cfluoroalkyl; ris a hydrogen atom, c1-6 alkyl, or c1-6 fluoroalkyl; and n represents 1 or 2.
Inventor(s): Hansen WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyong LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Pan WAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shengyuan HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bobing HU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Rupeng ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0569, H01M10/052, H01M10/0568
CPC Code(s): H01M10/0569
Abstract: an electrolyte includes a solvent, where the solvent includes at least one cyclic ether of formula (i) and at least one linear ether of formula (ii).
Inventor(s): Hansen WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyong LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Pan WAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shengyuan HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bobing HU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Rupeng ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0569, H01M10/052, H01M10/0568
CPC Code(s): H01M10/0569
Abstract:
Inventor(s): Hansen WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyong LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Pan WAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shengyuan HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bobing HU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Rupeng ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0569, H01M10/052, H01M10/0568
CPC Code(s): H01M10/0569
Abstract: where ais an oxygen atom, a single bond, or chr, ais an oxygen atom or chr, ais different from a, and when ais chr, ais not chr, r, r, and rare each independently a hydrogen atom, c1-6 alky, or c1-6 fluoroalkyl, rand rare each independently a hydrogen atom, a fluorine atom, c1-6 alkyl, or c1-6 fluoroalkyl, rto rcomprise 1 to 3 fluorine atom, ris a hydrogen atom, a fluorine atom, c1-6 alkyl, or c1-6 fluoroalkyl, and ris a hydrogen atom, c1-6 alkyl, or c1-6 fluoroalkyl
Inventor(s): Wen CHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chenghua FU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Suogang GUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yonghuang YE of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0587, H01M50/46
CPC Code(s): H01M10/0587
Abstract: an electrode assembly includes: a positive electrode plate, a first separator, a negative electrode plate and a second separator, the positive electrode plate, the first separator, the negative electrode plate and the second separator being wound to form the electrode assembly, wherein the first separator and the second separator are configured to isolate the positive electrode plate from the negative electrode plate, and a winding start end of the negative electrode plate, a winding start end of the first separator and a winding start end of the second separator are substantially aligned with one another.
Inventor(s): Zhi LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Dongyang SHI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhipeng CHENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ruijing LV of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ning CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Baiqing LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0587
CPC Code(s): H01M10/0587
Abstract: a positive electrode plate has a plurality of corner areas spaced along a first direction. each corner area forms a first bending layer of an electrode assembly when the positive electrode plate is wound along the first direction. the positive electrode plate includes a current collector and active substance layers arranged on two opposite surfaces of the current collector. the first bending layer is provided with a concave surface, and in at least one of the plurality of corner areas, one or a plurality of aperture(s) is/are arranged on the active substance layers configured to form the concave surface.
Inventor(s): Liya ZHAO of Ningle (CN) for contemporary amperex technology (hong kong) limited, Wei Li of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shengwu Zhang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Huihui Liu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenfa Lin of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yongjiang Wu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Fei Qu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Daoshuan Yang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Binghong Huang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ping Liu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenshuai Zhang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Long Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Liangcheng Liu of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/0587, H01M50/417, H01M50/46, H01M50/466, H01M50/489, H01M50/491, H01M50/494
CPC Code(s): H01M10/0587
Abstract: this application discloses a battery cell, a battery, and an electric apparatus. the battery cell includes at least one electrode assembly. the electrode assembly includes a positive electrode plate, a negative electrode plate, a separator, and a porous insulation layer. the positive electrode plate, the separator, and the negative electrode plate are stacked and wound. at least a portion of the porous insulation layer is disposed in a bent region of the electrode assembly, and the porous insulation layer is disposed between the positive electrode plate and the separator or disposed between the negative electrode plate and the separator. based on the above structure, the service life of the battery cell can correspondingly be prolonged, and the safety of the battery cell can correspondingly be improved.
Inventor(s): Lei HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Changlong HAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zeli WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Cuiping ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yilin DENG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/42, H01M4/02, H01M4/133, H01M4/136, H01M10/0567, H01M10/0568, H01M10/0569, H01M50/489, H01M50/491
CPC Code(s): H01M10/4235
Abstract: the present application provides a battery cell, a battery, and an electrical apparatus, the battery cell comprising a positive electrode plate, a negative electrode plate, a separator, and an electrolyte solution. the positive electrode plate comprises a positive electrode current collector and a positive electrode active material layer arranged on at least one side of the positive electrode current collector. the negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer arranged on at least one side of the negative electrode current collector. the separator is arranged between the positive electrode plate and the negative electrode plate. the positive electrode active material layer, the negative electrode active material layer, the separator, and the electrolyte solution satisfy a relationship of:
Inventor(s): Lei HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Changlong HAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zeli WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Cuiping ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yilin DENG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/42, H01M4/02, H01M4/133, H01M4/136, H01M10/0567, H01M10/0568, H01M10/0569, H01M50/489, H01M50/491
CPC Code(s): H01M10/4235
Abstract:
Inventor(s): Lei HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Changlong HAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zeli WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Cuiping ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yilin DENG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/42, H01M4/02, H01M4/133, H01M4/136, H01M10/0567, H01M10/0568, H01M10/0569, H01M50/489, H01M50/491
CPC Code(s): H01M10/4235
Abstract: the battery cell can have both good rate performance and good power performance.
Inventor(s): Xuefang CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bin YAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jiang LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/42, C08L1/28, H01M4/02, H01M4/13, H01M4/133, H01M4/134, H01M4/136, H01M4/62
CPC Code(s): H01M10/4235
Abstract: the present application provides a negative electrode plate, a secondary battery, and an electrical apparatus. the negative electrode plate comprises a negative electrode current collector and a negative electrode film layer arranged on at least one surface of the negative electrode current collector. the negative electrode film layer comprises a negative electrode active material and a polymer blend, and the polymer blend comprises a �-conjugated polymer and a polymer containing ester groups.
Inventor(s): Wen CHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chenghua FU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yonghuang YE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Suogang GUO of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/42, H01M50/586
CPC Code(s): H01M10/4235
Abstract: the embodiments of this application provide an electrode plate, an electrode assembly, a battery cell, a battery, and an electric device. the electrode plate includes a current collector, where the current collector includes a first region, a second region, and a tab that are arranged sequentially in a first direction, the first region is coated with an active substance layer, and the second region is not coated with the active substance layer; and a protective layer, where the protective layer at least partially covers an edge of the second region close to the tab and exceeds the edge of the second region close to the tab in the first direction. the technical solution provided by the embodiments of this application can prevent burrs on the current collector from piercing a separator and thus causing a short circuit in the battery, thereby improving the safety performance of the battery.
Inventor(s): Donghao WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haotian XIE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Erdong JING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Nannan ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/42, H01M4/02, H01M4/36, H01M4/485, H01M4/62
CPC Code(s): H01M10/4235
Abstract: a positive electrode plate includes a current collector and a lithium supplement layer and a positive active layer that are sequentially loaded onto a surface of the current collector, and constituents of the lithium supplement layer include a positive electrode lithium supplement material, a solid electrolyte material, and a conductive agent.
Inventor(s): Long CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Denghua LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yulian ZHENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/48, H01M10/42, H01M50/103
CPC Code(s): H01M10/486
Abstract: the embodiments of the application provide a battery cell, a battery and an electric device. the battery cell includes a housing, an electrode assembly and a detection member. the housing includes an accommodation cavity. the electrode assembly is received in the accommodation cavity. the detection member includes a sensor and a connector, the sensor is connected to the housing by the connector, and the sensor is used to detect status information of the battery cell and generate a signal, and the connector is used to transmit the signal. the sensor can detect the status information of the battery cell in real time, so as to regulate the battery cell based on the status information of the battery cell, improve a cycling performance of the battery cell, reduce a safety risk and extend a cycle life of the battery cell.
Inventor(s): Xiyang ZUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhonghong LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jinmei XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guangsheng LUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lihong LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Kai WU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/635, G01R31/387, H01M10/48, H01M10/613, H01M10/615, H01M10/6571
CPC Code(s): H01M10/635
Abstract: a method for thermal management of an energy storage system includes: acquiring state information of the energy storage system, wherein the state information includes temperature information and charging and discharging information of an energy storage unit of the energy storage system as well as temperature information of a thermal management component of the energy storage system; and determining a thermal management strategy of the energy storage system according to the state information.
Inventor(s): Zhanyu SUN of Ningde City (CN) for contemporary amperex technology (hong kong) limited, Lei WANG of Ningde City (CN) for contemporary amperex technology (hong kong) limited, Xingdi CHEN of Ningde City (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde City (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/6555, H01M10/613, H01M10/615, H01M10/653, H01M50/209, H01M50/213, H01M50/262, H01M50/291
CPC Code(s): H01M10/6555
Abstract: provided is a battery, a power consumption device, a method and device for producing a battery. the battery includes: a battery module and a box body, the battery module accommodated in the box body; the battery module including: n rows of battery cells, each row of battery cells arranged along a first direction, and the n rows of battery cells arranged along a second direction, and n being an integer greater than 1; n-1 spacer plate(s), the spacer plate extending along the first direction and disposed between two adjacent rows of battery cells, and the spacer plate fixedly connected to each of the battery cells in the two rows of the battery cells; where a fixing structure is provided on an end portion of the spacer plate in the first direction, and the spacer plate is fixed to the box body via the fixing structure.
Inventor(s): Xingxing LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhiming CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaoteng HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/6557, H01M10/653
CPC Code(s): H01M10/6557
Abstract: the present application discloses a thermal management component, a battery, and a power consumption device. the thermal management component is applicable to a battery, wherein a first cavity and a second cavity are formed inside the thermal management component, and the first cavity and the second cavity are arranged along a thickness direction of the thermal management component, wherein the first cavity is configured to accommodate a heat exchange medium to adjust a temperature of a battery cell, and the second cavity is configured to absorb an squeezing force on the thermal management component through deformation. the technical solution provided in the present application may improve the safety of the battery.
Inventor(s): Ke XIE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xubin CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M10/6568, H01M10/613, H01M10/625
CPC Code(s): H01M10/6568
Abstract: embodiments of the present application provide a water-cooling joint, a thermal management component, a battery, and an electrical device. the water-cooling joint is used for being connected to an inlet of a fluid channel, and is used for guiding a fluid to the fluid channel, wherein movement directions of the fluid in front of and behind the inlet are different. the water-cooling joint includes: a first connecting pipeline, wherein a first end of the first connecting pipeline is used for being connected to the inlet, and in a direction close to the inlet, the cross-section of the first connecting pipeline gradually increases. the technical solution provided by the present application is capable of reducing the energy loss during transportation of the fluid by the water-cooling joint.
Inventor(s): Dongsheng Sun of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qingkui Chi of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhisheng Chai of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu Jin of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/107, B60L50/64, H01M50/152, H01M50/179, H01M50/548
CPC Code(s): H01M50/107
Abstract: this application provides a shell, a battery cell, a battery, and an electric device, and relates to the technical field of batteries. the shell includes a bottom wall and a side wall. the side wall encloses an outer periphery of the bottom wall. an outer surface of the bottom wall and an outer surface of the side wall are connected by a first rounding surface, a thickness of the bottom wall is a, and a radius of the first rounding surface is rthat satisfies: r/a≤10. in this way, a size of a transition surface between an inner surface of the bottom wall and an inner surface of the side wall can be within a reasonable range, so that a size of space of a corner between the bottom wall and the side wall is within a reasonable range, thereby increasing energy density of the battery cell.
Inventor(s): Huasheng SU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyou XING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chunguang XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xianglong DU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/107, H01M50/133, H01M50/342
CPC Code(s): H01M50/107
Abstract: a housing includes a peripheral wall and a groove group. the groove group includes a first groove body and a second groove body that are provided in the peripheral wall, the first groove body and the second groove body are arranged at a distance from each other in a circumferential direction of the peripheral wall, and the residual thickness of the peripheral wall at a position where the first groove body is provided is less than the residual thickness of the peripheral wall at a position where the second groove body is provided. the first groove body has a volume v, the second groove body has a volume v, the smaller one of the volumes of the first groove body and the second groove body is represented by v, and the following formula is met: 0≤|v−v|≤3v.
Inventor(s): Qi CHENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Hong WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenwei CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jian ZHOU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/14, H01M50/586
CPC Code(s): H01M50/14
Abstract: a battery cell includes a case having an end portion opening; an electrode assembly arranged in the case; a cover plate arranged on the end portion opening; an isolation structure arranged on one side of the cover plate adjacent to the electrode assembly; and a supporting member fixedly connected to the isolation structure and configured to support the electrode assembly.
Inventor(s): Denghua LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Long CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xinxiang CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yulian ZHENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shoujun HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/15, H01M50/176, H01M50/533
CPC Code(s): H01M50/15
Abstract: an end cover assembly comprises a first cover plate, a second cover plate, a first insulating member, and anti-rotation means, wherein the first cover plate is used to close a first case, the second cover plate is used to close a second case, and the second cover plate is provided opposite to the first cover plate along a first direction in order for the first case closed by the first cover plate and the second case closed by the second cover plate to be arranged along the first direction, the first insulating member is provided between the first cover plate and the second cover plate, and the anti-rotation means is provided between the first insulating member and the first cover plate and between the first insulating member and the second cover plate.
Inventor(s): Meng LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenqi ZHU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Hao Meng of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/152, H01M10/04, H01M50/107, H01M50/133, H01M50/167, H01M50/186
CPC Code(s): H01M50/152
Abstract: this application discloses a housing assembly, a battery cell and an assembling method thereof, a battery, and an electrical device. the electrical device includes the battery. the battery includes the battery cell. the battery cell includes an electrode assembly and a housing assembly. the housing assembly includes: a housing body with a receptacle, a first housing section disposed at an edge of an opening of the receptacle, and a second housing section disposed at one end of the first housing section, the end being away from the housing body. an inner diameter of the second housing section is greater than an inner diameter of the housing body. the end cap is at least partially accommodated in the second housing section and configured to work together with the housing to package the electrode assembly. the assembling method of the battery cell includes: encasing, end cap engagement, and packaging.
Inventor(s): Hu XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shaojun NIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Fenggang ZHAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuqun ZENG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/242, H01M10/613, H01M10/647, H01M10/6568, H01M50/209, H01M50/291, H01M50/342, H01M50/547
CPC Code(s): H01M50/242
Abstract: examples of a battery and an electric device of the battery are disclosed. an example battery includes: a plurality of battery rows arranged in a first direction, in which the battery row includes a plurality of battery cells arranged in a second direction perpendicular to the first direction; and a reinforcing structure including at least one first reinforcing structure and a second reinforcing structure connected to each other, in which the at least one first reinforcing structure and the plurality of battery rows are stacked in the first direction, and the second reinforcing structure and the plurality of battery cells in one battery row are stacked in the second direction.
Inventor(s): Hu XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Fenggang ZHAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shaojun NIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuqun ZENG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/242, H01M50/209
CPC Code(s): H01M50/242
Abstract: a battery and an electric device are provided. the battery includes a plurality of battery cells, and the plurality of battery cells includes at least one first battery cell and at least one second battery cell. a length of the at least one first battery cell is greater than a length of the at least one second battery cell, and the at least one first battery cell is adjacent to and connected to the at least one second battery cell.
Inventor(s): Xinwei LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lingyu LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/244, H01M50/209, H01M50/249, H01M50/291, H01M50/298
CPC Code(s): H01M50/244
Abstract: a battery and an electrical device are provided. the battery includes a box, a first battery cell group, a second battery cell group, a separation beam, a connection member and a fixed base, wherein the first battery cell group and the second battery cell group are provided in the box and arranged in the first direction; the separation beam is provided between the first battery cell group and the second battery cell group; the first battery cell group and the second battery cell group are electrically connected by the connection member; and the fixed base is provided on the separation beam, wherein the connection member is fixed to the fixed base.
Inventor(s): Xinwei LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lingyu LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/244, H01M50/209, H01M50/249, H01M50/291, H01M50/298
CPC Code(s): H01M50/244
Abstract: the present application provides a box, a battery, and an electrical equipment, which belongs to the battery technology field. the box includes a frame, a partition beam, and a reinforcer. the partition beam is set inside the frame, and is configured to divide the accommodating space into a first accommodating space and a second accommodating space, wherein the first accommodating space is used to accommodate the battery cell. the reinforcer is located in the second accommodating space, is arranged between the partition beam and the frame, and is used to transfer force between the partition beam and the frame.
Inventor(s): Kai ZHOU of Ningde, (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/289, H01M10/6554, H01M50/242, H01M50/249
CPC Code(s): H01M50/289
Abstract: a battery box includes: a bottom plate disposed on a bottom of the battery box; a side plate forming a side portion enclosing the battery box; and a positioning member passing through the bottom plate and the side plate sequentially to maintain a relative positional relationship between the side plate and the bottom plate. according to one embodiment of the present disclosure, the battery box is provided to improve the connection stability between the bottom plate of the battery box and the side plate of the battery box by arranging a positioning member. a relative position of the side plate and the bottom plate is maintained by the connection stability between the bottom plate and the side plate, to improve a stress-bearing capacity of the side plate of the battery box.
Inventor(s): Haibo Ke of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun Li of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shoujun Huang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu Jin of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyou Xing of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/342, B60L50/64, H01M50/103
CPC Code(s): H01M50/3425
Abstract: provided are battery cell, battery, and electric device. the battery cell includes a casing and a pressure relief mechanism. the casing is provided therein with an accommodating space configured to accommodate an electrode assembly, wherein the casing is provided with a mounting hole in communication with the accommodating space, and the mounting hole is provided with a first hole wall surface extending along a circumferential direction of the mounting hole. the pressure relief mechanism is arranged in the mounting hole, wherein an outer peripheral surface of the pressure relief mechanism is welded to the first hole wall surface. the casing is provided with a first annular groove, and the first annular groove surrounds an outer side of the first hole wall surface; and/or the pressure relief mechanism is provided with a second annular groove, and the first hole wall surface surrounds an outer side of the second annular groove.
Inventor(s): Haibo Ke of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun Li of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guoan Mao of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/342, H01M50/148, H01M50/159, H01M50/184, H01M50/186
CPC Code(s): H01M50/3425
Abstract: embodiments of this application provide an end cover assembly, a battery cell, a battery, and an electric apparatus, where the end cover assembly includes an end cover and a pressure relief component, the end cover is provided with a recessed groove section recessed toward the inside of the battery cell, the pressure relief component is disposed within the groove section, and a top surface of the pressure relief component, facing away from the inside of the battery cell, has a distance to the groove bottom of the groove section that is less than or equal to the depth of the groove section. thus, the pressure relief component does not protrude from the top surface of the end cover, thereby not occupying additional space in the height direction of the battery cell.
Inventor(s): Xiaobo CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Mingguang GU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/342, H01M50/103
CPC Code(s): H01M50/3425
Abstract: a shell component includes a non-weak region and a weak region that are integrally formed, the shell component is provided with a groove portion, the non-weak region is formed around the groove portion, the weak region is formed at the bottom of the groove portion, and the weak region is configured to be damaged when an internal pressure of the battery cell is released. an average grain size of the weak region is s, and an average grain size of the non-weak region is s, satisfying: s/s≤0.9.
Inventor(s): Endong XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Ting LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhiwei XIAO of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/342, B32B5/02, B32B5/26
CPC Code(s): H01M50/3425
Abstract: embodiments of the present application disclose a battery and an electrical device. the battery includes: a battery cell provided with a pressure relief mechanism; and a protective plate disposed opposite the pressure relief mechanism, wherein the protective plate includes at least two protective sheets, and the at least two protective sheets are two different polymer matrix composite fiber sheets. the technical solution provided by the present application can protect a box of the battery from gas flow impact and high-temperature melting caused by thermal runaway of the battery, thereby enhancing the safety performance of the battery.
Inventor(s): Haibo KE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yanlin CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Kaihuan YANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Fan YU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/342, H01M50/233, H01M50/291
CPC Code(s): H01M50/3425
Abstract: a battery cell includes a housing and a barrier member. the housing has an inner cavity, the housing has a first wall, and a weak portion is provided on the first wall. the barrier member is arranged in the inner cavity of the housing, and the barrier member is provided on at least part of the periphery of the weak portion.
Inventor(s): Wenlin ZHOU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/342, B23K26/24
CPC Code(s): H01M50/3425
Abstract: a pressure relief device includes a pressure relief portion, a weak portion and a weld mark portion. the weak portion is arranged at the pressure relief portion and configured to crack when pressure is relieved from the battery cell. the weld mark portion is arranged at the pressure relief portion and configured to anneal the weak portion when the weld mark portion is formed. the weld mark portion is arranged on the pressure relief portion of the pressure relief device.
Inventor(s): Jianhuang KE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaobo CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yao LI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/358, B60L50/60, B60R16/033, H01M50/209, H01M50/249, H01M50/30, H01M50/342, H01M50/367
CPC Code(s): H01M50/358
Abstract: a battery includes: at least one battery cell, including a first pressure relief mechanism; and a box, including a second pressure relief mechanism. an exhaust passage is formed between the first pressure relief mechanism of the at least one battery cell and the second pressure relief mechanism of the box. when the first pressure relief mechanism is actuated, the exhaust passage is configured to expel emissions of the at least one battery cell from the first pressure relief mechanism to the second pressure relief mechanism. a minimum length of an exhaust path of the emissions in the exhaust passage is 0.1 m to 10 m.
Inventor(s): Xiaobo CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yao LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Mingguang GU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/358, H01M50/209
CPC Code(s): H01M50/358
Abstract: a battery includes: a box including an electrical chamber; a battery cell accommodated in the electrical chamber, where a pressure relief mechanism is disposed at a first wall of the battery cell; and an attachment structure attached to the first wall, where the attachment structure is provided with an avoidance region. the avoidance region is configured to provide a deformation space for the pressure relief mechanism of at least one battery cell, and the avoidance region satisfies 0.3≤s/(n*s)≤8.5, where s represents a projection area of the pressure relief mechanism in a direction perpendicular to the first wall, s represents a projection area of the avoidance region in the direction perpendicular to the first wall, n represents the number of pressure relief mechanisms corresponding to the avoidance region, and n is a positive integer.
Inventor(s): Kai WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaobo CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yao LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jianhuang KE of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/367, H01M10/613, H01M10/653, H01M10/655, H01M50/291, H01M50/342, H01M50/375
CPC Code(s): H01M50/367
Abstract: a battery includes: a plurality of battery cells, at least one battery cell having a first pressure relief mechanism; a box having a second pressure relief mechanism; and an enclosure mechanism used for enclosing and forming a first exhaust space corresponding to the first pressure relief mechanism of the at least one battery cell, the enclosure mechanism being provided with an opening in communication with the first exhaust space. when the first pressure relief mechanism is actuated, the discharge from the at least one battery cell enters the first exhaust space from the first pressure relief mechanism and is discharged to the second pressure relief mechanism through the opening, and the minimum length of the discharge path of the discharge between the first pressure relief mechanism and the second pressure relief mechanism is greater than the shortest distance between the first and second pressure relief mechanisms.
Inventor(s): Xiaoning HE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyong LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenwen XUE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengbin ZHONG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bobing HU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/446, H01M50/403, H01M50/42, H01M50/434, H01M50/449
CPC Code(s): H01M50/446
Abstract: a separator includes a porous substrate and a polymer coating. the polymer coating covers at least one surface of the porous substrate, and pores of the porous substrate are not completely filled by the polymer coating. the polymer coating has lithium ion conductivity. a preparation method of separator includes mixing preparation raw materials of a polymer coating to prepare a precursor solution, applying the precursor solution onto at least one surface of a porous substrate, and polymerizing the precursor solution to prepare the polymer coating.
Inventor(s): Xueying MU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jianrui Yang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chuying Ouyang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengdong Sun of Ningde (CN) for contemporary amperex technology (hong kong) limited, Siying Huang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yaohui Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhaoguang Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chongwang Han of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/457, H01M50/403, H01M50/417, H01M50/42, H01M50/423, H01M50/434, H01M50/443, H01M50/446, H01M50/451, H01M50/454, H01M50/489
CPC Code(s): H01M50/457
Abstract: a separator and a preparation method thereof, a secondary battery, and an electric apparatus are described. the separator includes a first base film and a coating provided on at least one surface of the first base film. the coating includes a thermosensitive functional material. the thermosensitive functional material includes a high-temperature-resistant core layer and a thermosensitive surface layer at least partially enveloping the high-temperature-resistant core layer. the high-temperature-resistant core layer includes one or more of organic polymer fiber and inorganic particle that is surface-modified by a silane coupling agent. this application relates to corresponding preparation method of separator, secondary battery, and electric apparatus. the separator has low pore-closing temperature and high puncture strength, thereby improving the safety performance of the corresponding battery.
Inventor(s): Peidong SONG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lili WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xin SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Liang YUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xuan LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Miaomiao DONG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xingbu CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Rundie LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/46, H01M10/0525, H01M10/054, H01M10/056, H01M10/42, H01M50/446, H01M50/528
CPC Code(s): H01M50/46
Abstract: this application provides an internal series battery, including a series module including three or more battery units, each including a positive active material layer, a solid electrolyte layer and a negative active material layer stacked, and intermediate current collectors, each disposed between the corresponding two adjacent battery units connected in series therethrough; a positive current collector located at one end of the series module and electrically connected to the positive active material layer of the battery unit at the end; and a negative current collector located at the other end of the series module and electrically connected to the negative active material layer of the battery unit at the end. the battery units include a first battery unit and a second battery unit that have an energy density the same as and different from any one of the battery units at the two ends of the series module respectively.
Inventor(s): Hui GU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lingyan JIANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/46, H01M4/62
CPC Code(s): H01M50/461
Abstract: an electrode plate assembly includes an electrode plate and a protection layer. the electrode plate includes an electrode plate body. the electrode plate body includes an end region. the protection layer is fixed onto the electrode plate body, and includes a protection layer body section that covers the end region along an extension direction of the end region. the protection layer body section includes a main end face body protection portion and two lateral face body protection portions connected respectively to two sides of the main end face body protection portion. the main end face body protection portion covers a main end face of the end region.
Inventor(s): Xianglong DU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/46, H01M50/457, H01M50/491
CPC Code(s): H01M50/461
Abstract: the present application discloses a battery cell, a battery, and an electrical apparatus. the battery cell includes a first electrode plate and a second electrode plate, wherein the first electrode plate and the second electrode plate are oppositely arranged, the first electrode plate or the second electrode plate has a thinned region, and an adsorbent is provided at a corresponding position of the thinned region.
Inventor(s): Dongsheng SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Hui GU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/474, B60L50/64, H01M10/04, H01M50/107, H01M50/477, H01M50/483, H01M50/533
CPC Code(s): H01M50/474
Abstract: an electrode assembly, a battery cell, a battery, and an electrical device are provided. the electrode assembly includes a negative electrode plate, a separator, and a positive electrode plate. the separator is disposed between the negative electrode plate and the positive electrode plate. the positive electrode plate includes a positive electrode active material layer, and the separator has an extension area extending out of the positive electrode active material layer in a first direction. a barrier portion is disposed on at least one side of the extension area, and the barrier portion is used for blocking a gap between the separator and the positive electrode plate or a gap between the separator and the negative electrode plate.
Inventor(s): Dan CAO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhisheng CHAI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Hui GU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/474, H01M10/04, H01M50/46, H01M50/486, H01M50/586
CPC Code(s): H01M50/474
Abstract: an electrode assembly includes a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate. the first electrode plate, the second electrode plate, and the separator are wound in a winding direction and form a winding structure. a flexible interlayer is provided between an end portion region of at least one end of at least one of the first electrode plate and the second electrode plate in the winding direction and a separator segment of the separator that is adjacent to the end portion region. the flexible interlayer protrudes from an edge of the end portion region in a circumferential direction of the winding structure.
Inventor(s): Yinhang TU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yi LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shichuang SONG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/477, B60L50/64, H01M50/103, H01M50/474, H01M50/486
CPC Code(s): H01M50/477
Abstract: this application provides a battery cell, a battery, an electric device, and a method and a device for preparing a battery cell, and pertains to the field of battery technologies. the battery cell includes at least one electrode assembly; a housing, where the housing is configured to accommodate the at least one electrode assembly; and an insulating film configured to wrap the at least one electrode assembly, so as to isolate the at least one electrode assembly from the housing, where the insulating film is sleeve-shaped and a material of the insulating film is a hot shrinkable material.
Inventor(s): Zhisheng CHAI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/528, H01M50/169, H01M50/531
CPC Code(s): H01M50/528
Abstract: a battery cell includes a case, an electrode assembly, an end cover and a current collecting member. the case has an opening; the electrode assembly is accommodated in the case, the electrode assembly has tabs; and the end cover covers the opening. the current collecting member is accommodated in the case and connected to the tabs. the current collecting member is welded and connected to the end cover to form a first welded portion, and the first welded portion does not run through the end cover along the axial direction of the electrode assembly.
Inventor(s): Hui GU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Lingyan JIANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Dongsheng SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhisheng CHAI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/528, H01M50/107, H01M50/119, H01M50/152, H01M50/169, H01M50/534, H01M50/536
CPC Code(s): H01M50/528
Abstract: a battery cell, a battery, an electric apparatus, and a manufacturing method of battery cell are disclosed. the battery cell includes an electrode assembly, a housing, and a current collecting member, where the electrode assembly is provided with a tab, the housing is configured to accommodate the electrode assembly, and the current collecting member is accommodated in the housing and connected to the tab. the current collecting member is welded to an inner side surface of the housing to form a first welding portion, with a welding depth formed by the first welding portion on the housing being less than a thickness of the housing. in this way, during welding, the housing is not punctured, and the first welding portion cannot penetrate through the housing.
Inventor(s): Zhixin LUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenqi ZHU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuqian WEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/528, H01M50/503, H01M50/516
CPC Code(s): H01M50/528
Abstract: this application provides a battery cell, a battery, and an electrical device, and relates to the technical field of batteries. the battery cell includes a shell, an electrode terminal, and a first blocking piece. the electrode terminal is disposed on a wall portion of the shell. a sidewall of a receptacle of the electrode terminal includes a first weld face. the first blocking piece is at least partially accommodated in the receptacle. the first blocking piece includes a second weld face. a welding clearance is formed between the second weld face and the first weld face. the first blocking piece is welded to the electrode terminal to form a welding portion. the welding portion is at least partially located within the welding clearance.
Inventor(s): Xing CHENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yongbin WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Kaiyue SHI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuanchun JI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shaojun NIU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/533, H01M50/152, H01M50/536, H01M50/609
CPC Code(s): H01M50/533
Abstract: provided are battery cell, battery, and electrical device. the battery cell includes box body, end cover, electrode assembly, and first current collecting member and second current collecting member arranged separately, wherein the housing is provided with opening; the end covers on the opening; the electrode assembly is accommodated in the housing; the electrode assembly is provided with electrode lug; the first current collecting member is connected to the electrode lug; and the second current collecting member is connected to the end cover, wherein along thickness direction of the end cover, the first current collecting member and the second current collecting member are stacked and connected to each other; the second current collecting member is located on one side of the first current collecting member facing the end cover; and projection of the second current collecting member is located within outer edge of the first current collecting member.
Inventor(s): Liqin WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyou XING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qi CHENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chunguang LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/533, H01M50/566
CPC Code(s): H01M50/533
Abstract: the application discloses a connection member, a battery cell, a battery and an electric device. the connection member is used to achieve an electrical connection between an electrode terminal and an electrode tab of a battery cell. the connection member includes a body portion and an electrode terminal welding portion connected to the body portion. the body portion is used to be connected to the electrode tab, and the electrode terminal welding portion is used to be welded to the electrode terminal. a hardness of the electrode terminal welding portion is greater than a hardness of the body portion. the embodiments of the application can enhance the service life of the battery cell.
Inventor(s): Qiaoge WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qi Cheng of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaowei Li of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/536, B60L50/64, H01M4/02, H01M4/66, H01M4/70, H01M50/533
CPC Code(s): H01M50/536
Abstract: this application discloses an electrode plate, a battery cell, an electrode assembly, a battery, and an electrical device, and relates to the field of battery technology. the electrode plate includes a current collector. the current collector includes a main body and a plurality of tabs. the main body includes a first edge in a width direction of the main body. the tabs protrude from the first edge. the plurality of tabs are spaced apart along a length direction of the main body. the plurality of tabs include at least one first tab. the first tab includes a first sub-tab and a second sub-tab. a gap exists between the first sub-tab and the second sub-tab.
Inventor(s): Hairong KANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jia HE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chenling ZHENG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chong WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Fangjie ZHOU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/569, H01M10/42, H01M50/172, H01M50/55
CPC Code(s): H01M50/569
Abstract: a battery cell, a battery, and an electric apparatus are described. a sampling module is connected to a housing and electrically connected to a conductor. at least one conductor is disposed on the housing and electrically connected to an electrode terminal. when status signals from the battery cell are collected, signals from at least one collection point of the sampling module are directly transmitted by the electrode terminal. in this way, the sampling module is integrated on the end cover and at least one conductor is electrically connected to the electrode terminal, which changes the conventional method of transmitting signals to cmc through a flexible circuit board and wiring harness, avoids the transmission of status signals from being affected by factors such as interference coupling and wiring harness short-circuiting, shortens the signal transmission path, and improves the reliability of signal collection by the sampling module.
Inventor(s): Huasheng SU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyou XING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xianglong DU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Weirong ZHUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/578, H01M50/342, H01M50/531
CPC Code(s): H01M50/578
Abstract: the present disclosure provides a battery cell, a battery and an electrical equipment. the battery cell includes: a shell, including a first wall; an electrode assembly, arranged inside the shell; an electric energy extraction part, arranged inside the shell and connected to the electrode assembly; a pressure relief mechanism, arranged on the first wall; and a support member, arranged inside the shell, wherein the support member is configured to limit the electric energy extraction part from blocking the pressure relief hole formed by the pressure relief mechanism in the event of thermal runaway of the battery cell.
Inventor(s): Dongsheng SUN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhisheng CHAI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Hui GU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Qingkui CHI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/586, H01M10/04, H01M50/107, H01M50/152, H01M50/505
CPC Code(s): H01M50/586
Abstract: provided are a battery cell, a method for manufacturing a battery cell, a battery, and an electric device. the battery cell includes: a housing provided with a first electrode lead-out portion and a second electrode lead-out portion that have opposite polarities; an electrode assembly arranged in the housing, the electrode assembly including an electrode body, and a first tab and a second tab that extend from one side of the electrode body; and a current collector assembly arranged at a side of the electrode body close to the first tab and the second tab. the current collector assembly includes a first current collector and a second current collector. the first tab and the first electrode lead-out portion are electrically connected to each other by the first current collector, and the second tab and the second electrode lead-out portion are electrically connected to each other by the second current collector.
Inventor(s): Ou QIAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yao LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiaobo CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Jiajin CAI of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/586, H01M50/103, H01M50/15, H01M50/176, H01M50/533
CPC Code(s): H01M50/586
Abstract: this application relates to the battery field, and in particular, to a battery cell, a battery, and an electrical device. the battery cell of this application includes a housing, an electrode assembly, and an insulation layer. a mounting capacity is created inside the housing. the electrode assembly is disposed in the mounting cavity. the insulation layer is disposed between at least a part of the electrode assembly and the housing. in the technical solution of this application, the insulation layer is disposed between at least a part of the electrode assembly and the housing. when the housing incurs an insulation failure and generates an electrical arcing or arc, the electrical arcing or arc generated by the housing will not break down the insulation layer due to insulativity of the insulation layer, thereby protecting at least a part, disposed opposite to the insulation layer, of the electrode assembly.
Inventor(s): Wenlin ZHOU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenzhong LIU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Kaihuan YANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/586, H01M50/30, H01M50/533
CPC Code(s): H01M50/586
Abstract: a battery cell includes a shell, an electrode assembly, an end cover assembly, and a support member. the shell has an opening. the electrode assembly has a main body and a tab protruding from the main body, and the electrode assembly is accommodated in the shell. the end cover assembly closes the opening. the support member is located between the end cover assembly and the main body. the support member includes a support body and a buckle portion. the support body has first and second surfaces facing and facing away the end cover assembly, respectively, in a thickness direction of the end cover assembly. the buckle portion is disposed on the support body, in buckle fit with the end cover assembly, and located between the first and second surfaces. the support member is disposed between the end cover assembly and the main body of the battery cell.
Inventor(s): Shengyun SHI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhijun Guo of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/586, H01M50/103, H01M50/593
CPC Code(s): H01M50/586
Abstract: a battery shell, a battery cell, a battery and an electrical device are provided. the battery shell has an accommodation cavity, the accommodation cavity includes a bearing bottom wall, a plurality of side walls and inner corner portions, and each inner corner portion is connected between the bearing bottom wall and the corresponding side walls, where the inner corner portions are provided with receding grooves in a concave manner.
Inventor(s): Yuyong LEI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhijun GUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/636, H01M50/103, H01M50/531, H01M50/586, H01M50/59
CPC Code(s): H01M50/636
Abstract: a battery cell includes: an electrode assembly; and a housing, configured to accommodate the electrode assembly. an injection hole is created on a first wall of the housing. the electrode assembly includes a body portion. an orthographic projection of an opening, close to an interior of the housing, of the injection hole is staggered from an orthographic projection of the body portion on the first wall.
Inventor(s): Congsheng CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Wenfa LIN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yu DING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yaoling WEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/636, B23K26/20, B23K101/36, H01M50/15, H01M50/186
CPC Code(s): H01M50/636
Abstract: the present disclosure relates to the field of battery technologies, and more particularly, to a battery cell, a battery, an electric apparatus, a welding method, and a welding device. the battery cell includes: an end cover having an injection hole defined thereon; and a seal sealingly connected to the injection hole. a first weld segment and a second weld segment are formed between the seal and the end cover. an annular weld seam of the seal is formed by enclosing with at least a part of the first weld segment and at least a part of the second weld segment together. the first weld segment is formed by continuous laser light. the second weld segment is formed by pulsed laser light.
Inventor(s): Huasheng SU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chengyou XING of Ningde (CN) for contemporary amperex technology (hong kong) limited, Weirong ZHUO of Ningde (CN) for contemporary amperex technology (hong kong) limited, Quankun LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chunguang XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Peng WANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Haizu JIN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/645, B60L50/64, H01M50/107, H01M50/152, H01M50/188, H01M50/55, H01M50/564
CPC Code(s): H01M50/645
Abstract: a shell assembly includes: a shell component, including an inner surface and an outer surface arranged oppositely, and a first through-hole penetrating the inner surface and the outer surface; an insulating member, at least partially located on the outer surface of the shell component, wherein the insulating member includes a second through-hole communicated with the first through-hole; an electrode terminal, installed in the first through-hole and the second through-hole to insulate and isolate from the shell component through the insulating member; and a flow blocking component, wherein the flow blocking component is configured to block liquid from entering the gap between the shell component and the electrode terminal through the gap between the insulating member and the shell component.
Inventor(s): Kai WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xuanyan SHI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Tingting ZHANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Fei QU of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H01M50/682, H01M50/586, H01M50/627
CPC Code(s): H01M50/682
Abstract: a battery cell includes an electrode assembly, an end cover assembly, and a shielding assembly. the end cover assembly includes an end cover. the end cover has a liquid injection hole. the shielding assembly is disposed at a side of the end cover facing towards the electrode assembly and configured to cover the liquid injection hole.
Inventor(s): Liliuyuan LIANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yanhua LU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Dongxu YU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Meng LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guoxiu WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiangxiang XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bingtuan LUO of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H02J7/00
CPC Code(s): H02J7/0014
Abstract: a control method of an energy storage system. the energy storage system includes n energy storage modules connected in series, and n is a positive integer greater than 1. the control method includes: acquiring a first parameter of each energy storage module among the n energy storage modules, the first parameter being a parameter related to the power; and conducting balance control on the energy storage system according to the first parameter of each energy storage module.
Inventor(s): Liliuyuan LIANG of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yanhua LU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Dongxu YU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Guoxiu WU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Meng LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Xiangxiang XU of Ningde (CN) for contemporary amperex technology (hong kong) limited, Bingtuan LUO of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H02J7/00
CPC Code(s): H02J7/0014
Abstract: a control method of an energy storage system. the energy storage system includes a plurality of energy storage modules connected in series. the control method includes: acquiring a difference value between a first state parameter of a first energy storage module and a first state parameter of a second energy storage module among n available energy storage modules in the energy storage system, n being a positive integer greater than 1; and conducting balance control on the energy storage system according to the difference value of the first state parameters.
Inventor(s): Weifeng CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shibiao QUE of Ningde (CN) for contemporary amperex technology (hong kong) limited, Can CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Disong CHEN of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H02J7/00, B60L53/80, G01F23/00, H01M10/44
CPC Code(s): H02J7/0042
Abstract: disclosed are a battery compartment and a battery swap station. the battery compartment includes a compartment body and a liquid level detecting apparatus. the compartment body is provided with the liquid level detecting apparatus, used for performing real-time detection on a liquid level in the compartment body and providing accurate detection information, so water accumulation conditions in the compartment body are mastered, and response is made in time. when the detected liquid level reaches a predetermined height, the battery compartment can take measures, such as giving an alarm, powering off and transferring the apparatus, thereby avoiding circuit and mechanical failures of the battery compartment due to water accumulation.
Inventor(s): Zhanliang LI of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yu YAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Zhimin DAN of Ningde (CN) for contemporary amperex technology (hong kong) limited, Shan HUANG of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H02J7/34, B60L53/53, B60L53/62, B60L53/66, B60L53/67, H02J7/00
CPC Code(s): H02J7/342
Abstract: a charging and discharging control method and apparatus, a device, and a storage medium are disclosed. the method is applied to a charging system, the charging system comprising at least two charging devices that are separately connected to batteries. the method comprises: determining, when at least one of the at least two batteries requests to be discharged, a discharging path for the battery requesting to be discharged according to charging and discharging parameters of batteries currently connected. the method autonomously controls the discharging path based on the charging and discharging parameters of the batteries, which helps to shorten the discharging path so that the power discharged from batteries requesting to be discharged at the same moment can be directly charged through the dc bus into the batteries requesting to be charged, thus enabling the conversion path for that part of power to be very short and improving the charging efficiency.
Inventor(s): Tian Liu of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yuanmiao Zhao of Ningde (CN) for contemporary amperex technology (hong kong) limited, Yu Yan of Ningde (CN) for contemporary amperex technology (hong kong) limited, Chunfa Wang of Ningde (CN) for contemporary amperex technology (hong kong) limited
IPC Code(s): H02K11/33, H02K11/02
CPC Code(s): H02K11/33
Abstract: the present application provides a motor control device, a drive device and an electric apparatus. the motor control device comprises a case in which a motor inverter, a heating power module and an absorption capacitor are housed; each inverter power module in the motor inverter is connected to a motor multiphase interface; the heating power module is connected to a motor neutral interface; a positive input end of the heating power module is connected to a first battery-powered positive interface, and a negative input end is connected to a first battery-powered negative interface; two ends of the absorption capacitor are respectively connected to a high-voltage positive terminal and a high-voltage negative terminal of the heating power module; and a second battery-powered positive/negative interface is connected to a positive/negative input end of the motor inverter.
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED patent applications on February 27th, 2025
- CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
- B05C5/02
- H01M50/26
- CPC B05C5/02
- Contemporary amperex technology (hong kong) limited
- B60L53/63
- B60L53/62
- H02J3/00
- H02J7/00
- CPC B60L53/63
- B60L58/19
- H01M10/42
- H01M10/44
- H01M50/204
- H01M50/296
- H01M50/512
- CPC B60L58/19
- C01B32/05
- CPC C01B32/05
- C07F5/02
- H01M4/02
- H01M4/131
- H01M4/505
- H01M4/62
- H01M10/0525
- CPC C07F5/022
- C08F36/06
- C08K5/37
- H01M4/04
- CPC C08F36/06
- C08F214/22
- C08F212/08
- C08F220/06
- C09D5/00
- C09D125/16
- C09D127/16
- C09D133/08
- CPC C08F214/225
- C08F214/28
- CPC C08F214/28
- C08J5/18
- C08J9/20
- H01M50/403
- H01M50/417
- H01M50/491
- CPC C08J5/18
- B05C11/00
- CPC H01M4/0404
- B05C11/02
- B05C21/00
- CPC H01M4/0435
- H01M4/13
- H01M10/0587
- CPC H01M4/13
- H01M4/139
- H01M4/136
- H01M4/525
- H01M4/58
- CPC H01M4/131
- H01M4/583
- H01M4/36
- H01M4/64
- H01M10/052
- CPC H01M4/583
- H01M4/46
- CPC H01M4/366
- H01M4/587
- H01M4/48
- H01M10/0567
- H01M10/0569
- H01M4/38
- CPC H01M4/386
- C01G53/00
- CPC H01M4/525
- CPC H01M4/58
- C01C3/12
- H01M10/054
- CPC H01M4/5825
- CPC H01M4/62
- CPC H01M4/622
- CPC H01M4/623
- B01J13/18
- CPC H01M4/625
- CPC H01M4/628
- H01M4/66
- CPC H01M4/662
- H01M4/80
- CPC H01M4/667
- H01M10/04
- H01M10/613
- H01M10/615
- H01M10/6554
- H01M10/6567
- CPC H01M10/0404
- G01B21/06
- CPC H01M10/0431
- B60L50/64
- H01M50/107
- H01M50/533
- H01M50/414
- CPC H01M10/0468
- H01M10/6556
- H01M10/658
- H01M50/242
- H01M50/342
- H01M10/0568
- CPC H01M10/0567
- CPC H01M10/0569
- H01M50/46
- CPC H01M10/0587
- H01M50/466
- H01M50/489
- H01M50/494
- H01M4/133
- CPC H01M10/4235
- C08L1/28
- H01M4/134
- H01M50/586
- H01M4/485
- H01M10/48
- H01M50/103
- CPC H01M10/486
- H01M10/635
- G01R31/387
- H01M10/6571
- CPC H01M10/635
- H01M10/6555
- H01M10/653
- H01M50/209
- H01M50/213
- H01M50/262
- H01M50/291
- CPC H01M10/6555
- H01M10/6557
- CPC H01M10/6557
- H01M10/6568
- H01M10/625
- CPC H01M10/6568
- H01M50/152
- H01M50/179
- H01M50/548
- CPC H01M50/107
- H01M50/133
- H01M50/14
- CPC H01M50/14
- H01M50/15
- H01M50/176
- CPC H01M50/15
- H01M50/167
- H01M50/186
- CPC H01M50/152
- H01M10/647
- H01M50/547
- CPC H01M50/242
- H01M50/244
- H01M50/249
- H01M50/298
- CPC H01M50/244
- H01M50/289
- CPC H01M50/289
- CPC H01M50/3425
- H01M50/148
- H01M50/159
- H01M50/184
- B32B5/02
- B32B5/26
- H01M50/233
- B23K26/24
- H01M50/358
- B60L50/60
- B60R16/033
- H01M50/30
- H01M50/367
- CPC H01M50/358
- H01M10/655
- H01M50/375
- CPC H01M50/367
- H01M50/446
- H01M50/42
- H01M50/434
- H01M50/449
- CPC H01M50/446
- H01M50/457
- H01M50/423
- H01M50/443
- H01M50/451
- H01M50/454
- CPC H01M50/457
- H01M10/056
- H01M50/528
- CPC H01M50/46
- CPC H01M50/461
- H01M50/474
- H01M50/477
- H01M50/483
- CPC H01M50/474
- H01M50/486
- CPC H01M50/477
- H01M50/169
- H01M50/531
- CPC H01M50/528
- H01M50/119
- H01M50/534
- H01M50/536
- H01M50/503
- H01M50/516
- H01M50/609
- CPC H01M50/533
- H01M50/566
- H01M4/70
- CPC H01M50/536
- H01M50/569
- H01M50/172
- H01M50/55
- CPC H01M50/569
- H01M50/578
- CPC H01M50/578
- H01M50/505
- CPC H01M50/586
- H01M50/593
- H01M50/636
- H01M50/59
- CPC H01M50/636
- B23K26/20
- B23K101/36
- H01M50/645
- H01M50/188
- H01M50/564
- CPC H01M50/645
- H01M50/682
- H01M50/627
- CPC H01M50/682
- CPC H02J7/0014
- B60L53/80
- G01F23/00
- CPC H02J7/0042
- H02J7/34
- B60L53/53
- B60L53/66
- B60L53/67
- CPC H02J7/342
- H02K11/33
- H02K11/02
- CPC H02K11/33
