Ningde Amperex Technology Limited patent applications on July 18th, 2024
Patent Applications by Ningde Amperex Technology Limited on July 18th, 2024
Ningde Amperex Technology Limited: 21 patent applications
Ningde Amperex Technology Limited has applied for patents in the areas of H01M4/02 (12), H01M10/0525 (8), H01M10/0567 (8), H01M10/04 (5), H01M4/587 (4) H01M10/0567 (4), H01M10/0431 (3), H01M50/103 (2), C01G9/006 (1), C01G53/50 (1)
With keywords such as: electrode, negative, material, portion, positive, active, plate, layer, electrochemical, and region in patent application abstracts.
Patent Applications by Ningde Amperex Technology Limited
Inventor(s): Zheng YI of Ningde (CN) for ningde amperex technology limited, Fujin TAN of Ningde (CN) for ningde amperex technology limited, Zigui ZHENG of Ningde (CN) for ningde amperex technology limited, Yuansen XIE of Ningde (CN) for ningde amperex technology limited
IPC Code(s): C01G9/00, H01M4/02, H01M4/583
CPC Code(s): C01G9/006
Abstract: a hard carbon material includes a porous skeleton, a first element, and element zinc, where the first element includes at least one of element nitrogen, element sulfur, element boron, element phosphorus or element selenium. a percentage of the first element with respect to a total mass of the hard carbon material is a%, and a percentage of element zinc with respect to the total mass of the hard carbon material is a%, where the hard carbon material satisfies 1.5≤a/a≤5. when applied to an electrochemical apparatus, the hard carbon material can significantly improve the energy density of the electrochemical apparatus.
Inventor(s): Shiyang Cheng of Ningde City (CN) for ningde amperex technology limited, Jumpei Shitaba of Ningde City (CN) for ningde amperex technology limited, Ye Lang of Ningde City (CN) for ningde amperex technology limited
IPC Code(s): C01G53/00, H01M4/525
CPC Code(s): C01G53/50
Abstract: a metal hydroxide includes ni element. an axial lattice constant c Å of the metal hydroxide satisfies: 0.363x+4.2≤c≤0.363x+4.4, where, based on a total molar mass of a metal element in the metal hydroxide, a molar percentage of the ni element in the metal hydroxide is x. the lattice constant c of the metal hydroxide falls within a specified value range. the positive electrode material prepared from the metal hydroxide serving as a precursor is of excellent structural stability in a charging and discharging environment, and improves the cycle performance, high-temperature performance, and safety performance of lithium-ion batteries.
Inventor(s): Huawei ZHONG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M4/13, H01M4/02, H01M10/04
CPC Code(s): H01M4/13
Abstract: an electrochemical device includes an electrode assembly including a positive electrode plate and a negative electrode plate. the positive electrode plate includes a positive current collector and a first positive active material layer disposed on a surface of the positive current collector. the negative electrode plate includes a negative current collector and a first negative active material layer disposed on a surface of the negative current collector. the first negative active material layer includes a prelithiation region and a non-prelithiation region. the negative electrode plate includes a first groove that runs through the first negative active material layer and exposes the surface of the negative current collector. the positive electrode plate further includes a first insulation layer affixed to the first positive active material layer facing the first groove. the non-prelithiation region is located inside an orthographic projection of the first insulation layer on the negative electrode plate.
Inventor(s): Zheng YI of Ningde (CN) for ningde amperex technology limited, Zigui ZHENG of Ningde (CN) for ningde amperex technology limited, Yuansen XIE of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M4/133, H01M4/02, H01M4/36, H01M4/587
CPC Code(s): H01M4/133
Abstract: a negative electrode plate includes a negative current collector and a negative active material layer disposed on at least one side of the negative current collector. the negative active material layer includes a negative active material, the negative active material includes graphite and hard carbon, and a ratio of a mass percent �of hydrogen to a mass percent �of carbon in the hard carbon is 0.02≤�/�≤0.20. the negative electrode plate enhances the high-temperature cycle performance of the electrochemical device.
Inventor(s): Jinghua LI of Ningde (CN) for ningde amperex technology limited, Xiuhao WANG of Ningde (CN) for ningde amperex technology limited, Weidao SHI of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M4/139, H01M4/02, H01M4/62
CPC Code(s): H01M4/139
Abstract: an electrochemical device, including a negative electrode plate, the negative electrode plate includes a negative electrode active layer. a width of the negative electrode active layer is ha, and along a width direction of the negative electrode active layer, the negative electrode active layer includes a first edge and a second edge opposite to each other, the negative electrode plate includes a first region and a second region, the first region being a region from the first edge to ha/4 away from the first edge and the second region being a region from ha/4 away from the first edge to 3ha/4 away from the first edge. under 50% state of charge of the electrochemical device, a charge transfer resistance per unit area of the first region and the second region is rct and rct respectively, satisfying: 85%≤rct/rct≤140%. it helps inhibit lithium precipitation and enhance cycling performance of the electrochemical device.
Inventor(s): Kefei WANG of Fujian (CN) for ningde amperex technology limited, Dongdong HAN of Fujian (CN) for ningde amperex technology limited, Qingwen ZHANG of Fujian (CN) for ningde amperex technology limited, Shengqi LIU of Fujian (CN) for ningde amperex technology limited
IPC Code(s): H01M4/36, H01M4/02, H01M4/62, H01M10/0525, H01M10/0567
CPC Code(s): H01M4/366
Abstract: a positive electrode includes a current collector and a positive electrode active material layer. the positive electrode active material layer is located on at least one surface of the current collector and includes a first positive electrode active material layer and a second positive electrode active material layer. the first positive electrode active material layer is located between the current collector and the second positive electrode active material layer, where an adhesion force between the current collector and the first positive electrode active material layer is fn/m, and a cohesion force of the second positive electrode active material layer is fn/m, the positive electrode satisfying f/f≥6.
Inventor(s): Shiyang Cheng of Ningde City (CN) for ningde amperex technology limited, Jumpei Shitaba of Ningde City (CN) for ningde amperex technology limited, Ye Lang of Ningde City (CN) for ningde amperex technology limited, Yuhao Lu of Ningde City (CN) for ningde amperex technology limited
IPC Code(s): H01M4/525, H01M4/02, H01M4/505, H01M10/04, H01M10/44
CPC Code(s): H01M4/525
Abstract: a positive electrode material, including a lithium transition metal oxide. as tested by x-ray diffractometry, a full width at half maximum fwhmof a (101) crystal plane diffraction peak and a full width at half maximum fwhmof a (104) crystal plane diffraction peak of the positive electrode material satisfy: fwhm/fwhm≤0.7. this application further provides an electrochemical device and an electronic device that includes the positive electrode material. the positive electrode material is of excellent structural stability under high temperature and high voltage, and is of excellent kinetic performance under high-rate charging and discharging conditions.
Inventor(s): Wenyuan LIU of Ningde City (CN) for ningde amperex technology limited, Ye LANG of Ningde City (CN) for ningde amperex technology limited, Guoxia YUAN of Ningde City (CN) for ningde amperex technology limited, Leimin XU of Ningde City (CN) for ningde amperex technology limited
IPC Code(s): H01M4/58, H01M4/02, H01M10/0567, H01M10/0568
CPC Code(s): H01M4/582
Abstract: an electrochemical device includes a positive electrode plate and an electrolyte, where the positive electrode plate includes a positive electrode material layer, the positive electrode material layer includes a positive electrode active material, and the positive electrode active material contains element mn and element x, where element x includes at least one of element co or element al, and a molar ratio of element x to element mn is a %, a ranging from 0.1 to 10; and the electrolyte includes a boron-containing lithium salt. under a synergistic effect of the positive electrode active material and the electrolyte, rate performance and cycling performance of the electrochemical device can be improved.
Inventor(s): Jia TANG of Ningde (CN) for ningde amperex technology limited, Jiali DONG of Ningde (CN) for ningde amperex technology limited, Lihong HE of Ningde (CN) for ningde amperex technology limited, Yuansen XIE of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M4/583, H01M4/02, H01M10/0567, H01M10/0568, H01M10/0569
CPC Code(s): H01M4/583
Abstract: a negative electrode material layer includes a negative electrode active material, the negative electrode active material includes graphite, and (d/d−1)�100%≤0.56% and 3.3600≤d≤3.3720 are satisfied; where dÅ is an interplanar spacing of (002) crystal plane of the negative electrode active material obtained by sintering the negative electrode material layer tested by an x-ray diffractometer, and dÅ is an interplanar spacing of the (002) crystal plane of the negative electrode active material in the negative electrode material layer tested by the x-ray diffractometer. the negative electrode plate of the electrochemical apparatus provided in this application has low swelling rate during cycling, so that the electrochemical apparatus also has low swelling rate during cycling.
Inventor(s): Pengyang FENG of Ningde (CN) for ningde amperex technology limited, Jia TANG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M4/587, H01M4/02, H01M4/133, H01M10/0525, H01M10/0569
CPC Code(s): H01M4/587
Abstract: an electrochemical device includes a positive electrode, a separator, an electrolyte solution, and a negative electrode. the negative electrode includes a negative current collector and a negative active material layer disposed on a surface of the negative current collector. the electrochemical device satisfies: a=w/(i/i), and 150≤a≤1000. as tested by differential scanning calorimetry, the negative active material layer exhibits an exothermic peak at a temperature ranging from a room temperature to 450� c. a peak area of the exothermic peak is w j/g. as tested by raman spectroscopy, a ratio of a peak intensity at a wavenumber 1350 cmto a peak intensity at a wavenumber 1580 cmof the negative active material layer is i/i. the electrochemical device of this application achieves improved kinetic performance and cycle performance in addition to a high capacity.
Inventor(s): Xuecheng LI of Ningde (CN) for ningde amperex technology limited, Yuanbing ZHANG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/04, H01M50/105, H01M50/129, H01M50/46
CPC Code(s): H01M10/0431
Abstract: a battery includes a housing, an electrode assembly, a first bonding part, and a second bonding part. the electrode assembly includes a body portion and a first metal portion. the first metal portion protrudes from the body portion along a first direction. the body portion includes a first protruding portion, a first portion, and a second protruding portion that are connected in sequence. the first portion includes a first surface and a second surface disposed opposite to each other in the second direction. the first protruding portion includes a third surface located on a same side as the first surface and a fourth surface disposed opposite to the third surface. the second protruding portion includes a fifth surface located on the same side as the first surface and a sixth surface disposed opposite to the fifth surface. the first protruding portion includes a seventh surface in the first direction.
Inventor(s): Huawei ZHONG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/04, H01M4/02, H01M4/133, H01M4/36, H01M4/587, H01M10/0525
CPC Code(s): H01M10/0431
Abstract: an electrochemical apparatus includes an electrode assembly. the electrode assembly includes a positive electrode plate and a negative electrode plate. the positive electrode plate includes a positive electrode current collector and a first positive electrode active material layer, and the negative electrode plate includes a negative electrode current collector and a first negative electrode active material layer. the first negative electrode active material layer includes a prelithiation region and an non-prelithiation region, where the non-prelithiation region has no area overlapping with the prelithiation region, and the non-prelithiation region is provided on an edge region of the negative electrode plate.
Inventor(s): Shiwei SU of Ningde (CN) for ningde amperex technology limited, Daolin DENG of Ningde (CN) for ningde amperex technology limited, Xingfu YANG of Ningde (CN) for ningde amperex technology limited, Wen CHEN of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/04, H01M50/531, H01M50/586
CPC Code(s): H01M10/0431
Abstract: an electrochemical apparatus, including a winding-structured electrode assembly, an end of a first electrode plate is provided with a first zone connected to a first tab, an end of a second electrode plate is provided with a second zone connected to a second tab. along a winding direction from inside to outside, the first electrode plate is located on the inner side of the electrode assembly relative to the second electrode plate, and the first zone exceeds the second zone by a winding length of less than one turn. an angle between a half line from a winding center to a center of the first zone and a half line from the winding center to a center of the second zone is �, 30�≤�≤270�. an effective current path length of the outermost turn of the first electrode plate is extended, thereby reducing a magnetic field produced by the electrode assembly.
Inventor(s): Lilan ZHANG of Ningde (CN) for ningde amperex technology limited, Chao TANG of Ningde (CN) for ningde amperex technology limited, Jianming ZHENG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/0525, H01M10/0567, H01M10/0569
CPC Code(s): H01M10/0525
Abstract: an electrochemical device, including a positive electrode, a negative electrode, a separator and an electrolyte. the electrolyte includes a nitrile compound, and the mass percentage of the nitrile compound in the electrolyte is a %; the negative electrode includes a current collector, wherein the current collector comprises a first region and a second region; the first region is provided with a negative electrode active substance layer; the second region does not comprise a negative electrode active substance layer; the area of the second region is b % of the surface area of the current collector; and a�b<600
Inventor(s): Lilan ZHANG of Ningde (CN) for ningde amperex technology limited, Xiexue PENG of Ningde (CN) for ningde amperex technology limited, Xiao YUAN of Ningde (CN) for ningde amperex technology limited, Chao TANG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/0567, C01B25/455, C01B35/12, H01M4/02, H01M4/38, H01M4/525, H01M4/587, H01M10/0525, H01M10/42
CPC Code(s): H01M10/0567
Abstract: an electrolytic solution includes an additive a and an additive b. the additive a includes at least one of additives represented by formula i or formula ii:
Inventor(s): Lilan ZHANG of Ningde (CN) for ningde amperex technology limited, Xiexue PENG of Ningde (CN) for ningde amperex technology limited, Xiao YUAN of Ningde (CN) for ningde amperex technology limited, Chao TANG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/0567, C01B25/455, C01B35/12, H01M4/02, H01M4/38, H01M4/525, H01M4/587, H01M10/0525, H01M10/42
CPC Code(s): H01M10/0567
Abstract:
Inventor(s): Lilan ZHANG of Ningde (CN) for ningde amperex technology limited, Xiexue PENG of Ningde (CN) for ningde amperex technology limited, Xiao YUAN of Ningde (CN) for ningde amperex technology limited, Chao TANG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/0567, C01B25/455, C01B35/12, H01M4/02, H01M4/38, H01M4/525, H01M4/587, H01M10/0525, H01M10/42
CPC Code(s): H01M10/0567
Abstract: the additive b includes at least one of lithium ditluorophosphate, lithiur difluoro(oxalato)borate, or lithium bis(oxalato)borate. the additive a and additive b added in the electrolytic solution can alleviate the voltage drop of the electrochemical device during high-temperature storage, and increase the capacity retention rate of the electrochemical device during high-temperature storage. moreover, when the electrochemical device is in a fully charged state, the additive a and additive b can implement decomposition reactions at a cathode interface successively to form a double-protected inorganic cei layer, thereby improving voltage stability of the cathode interface under high potentials.
Inventor(s): Wenwen LI of Ningde (CN) for ningde amperex technology limited, Chao TANG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/0567, H01M10/0525
CPC Code(s): H01M10/0567
Abstract: an electrochemical device and an electronic device. the electrochemical device includes a positive electrode plate, a negative electrode plate, an electrolyte solution, and a separator. a mass percent a of the electrolyte solution in a total mass of a battery cell is 2% to 8%. the electrolyte solution includes a sulfur-containing substance with a valence of s/s or above. based on a total mass of the electrolyte solution, a mass percent b of the sulfur-containing substance is 10% to 20%. by controlling the mass percent of the electrolyte solution and the use of the sulfur-containing substance and the fluorine-containing additive, the ionic conductivity of the sei film is improved, and consumption of the electrolyte solution during cycling is reduced, thereby enhancing safety performance and cycle performance while reducing the electrolyte volume.
Inventor(s): Chunrui XU of Ningde (CN) for ningde amperex technology limited, Shaoyun ZHOU of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M10/0567, H01M4/02, H01M4/58, H01M4/583, H01M10/0525, H01M10/0569
CPC Code(s): H01M10/0567
Abstract: an electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolytic solution. the electrolytic solution includes a lithium salt, an organic solvent, and an additive. a normal-temperature conductivity of the electrolytic solution is b ms/cm, a single-side coating weight of one positive electrode plate is a g/1540.25 mm, and a relationship between a and b satisfies: b≥50.859a−16.044a+8.2071, where 0.2≤a≤0.55. the electrochemical device is improved with respect to long-term cycle performance and high-temperature storage performance, and maintains excellent charge performance and energy efficiency.
Inventor(s): Lilan Zhang of Ningde City (CN) for ningde amperex technology limited, Weixiao Chen of Ningde City (CN) for ningde amperex technology limited, Chao Tang of Ningde City (CN) for ningde amperex technology limited
IPC Code(s): H01M10/0567, H01M4/38, H01M10/0525
CPC Code(s): H01M10/0567
Abstract: an electrochemical apparatus including a negative electrode plate and an electrolyte, where the negative electrode plate includes a negative electrode active material, where the negative electrode active material includes a silicon-based material; and the electrolyte includes a first substance, a second substance, and a third substance; where the first substance is selected from a fluorobenzene compound or a fluoroether compound; the second substance is at least one of phosphate, phosphite, carbonate, carboxylate, ether, or sulfone; and the third substance is a lithium salt; and based on mass of the electrolyte, a mass ratio of the second substance to the third substance is y, where 0.8≤y≤4. the electronic apparatus includes the electrochemical apparatus.
Inventor(s): Ning LIU of Ningde (CN) for ningde amperex technology limited, Kun YAN of Ningde (CN) for ningde amperex technology limited, Wei ZHAO of Ningde (CN) for ningde amperex technology limited, Ping HE of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M50/103, H01M50/119, H01M50/133
CPC Code(s): H01M50/103
Abstract: a battery shell includes a first housing. the first housing is configured to be formed by winding a sheet around a first axis. the sheet includes a first end portion and a second end portion. the first housing includes a first sidewall. the first sidewall includes a first flat portion, a first bent portion, and the first end portion. the first sidewall further includes a second flat portion and the second end portion. a wall face of the first flat portion facing away from the first axis is a first wall face. a wall face of the second flat portion facing away from the first axis is a second wall face. as viewed along a thickness direction perpendicular to the second flat portion, a distance between the first wall face and the second wall face is less than a thickness of the second flat portion.
Inventor(s): Jianhui YANG of Ningde (CN) for ningde amperex technology limited, Ning LIU of Ningde (CN) for ningde amperex technology limited, Guowen ZHANG of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M50/103, H01M10/42, H01M50/176, H01M50/184, H01M50/191, H01M50/531, H01M50/645
CPC Code(s): H01M50/103
Abstract: an electrochemical apparatus includes a housing, an electrode assembly, a first tab, and a pole assembly. the housing includes a main body and a first protruding portion, the main body is provided with a first cavity, the first protruding portion is provided with a second cavity and a first through hole, the first through hole and the first cavity both communicate with the second cavity, the pole assembly is disposed in the first through hole, one end of the first tab is connected to the electrode assembly, and another end of the first tab extends into the second cavity and is connected to the pole assembly. the main body includes a first top wall, and the first protruding portion includes a second top wall, where the first top wall protrudes from the second top wall, and the first through hole is provided in the second top wall.
20240243443. BATTERY AND BATTERY PACK_simplified_abstract_(ningde amperex technology limited)
Inventor(s): Ning LIU of Ningde (CN) for ningde amperex technology limited, Hua WU of Ningde (CN) for ningde amperex technology limited
IPC Code(s): H01M50/533, H01M50/204, H01M50/586
CPC Code(s): H01M50/533
Abstract: a battery includes a housing, a battery post, a battery cell and an adapter. the housing includes a first side plate. the battery cell includes a battery cell body and a first tab extending from an end of the battery cell body facing the first side plate. the adapter includes a first connecting portion, a first bending portion, a second connecting portion, a second bending portion, and a third connecting portion located between the second connecting portion and the first side plate. the first connecting portion is connected to the first tab. the first bending portion connects the first connecting portion and the second connecting portion. a projection of the first connecting portion on the first side plate does not overlap with a projection of the second connecting portion on the first side plate. the second bending portion connects the second connecting portion and the third connecting portion.
Ningde Amperex Technology Limited patent applications on July 18th, 2024
- Ningde Amperex Technology Limited
- C01G9/00
- H01M4/02
- H01M4/583
- CPC C01G9/006
- Ningde amperex technology limited
- C01G53/00
- H01M4/525
- CPC C01G53/50
- H01M4/13
- H01M10/04
- CPC H01M4/13
- H01M4/133
- H01M4/36
- H01M4/587
- CPC H01M4/133
- H01M4/139
- H01M4/62
- CPC H01M4/139
- H01M10/0525
- H01M10/0567
- CPC H01M4/366
- H01M4/505
- H01M10/44
- CPC H01M4/525
- H01M4/58
- H01M10/0568
- CPC H01M4/582
- H01M10/0569
- CPC H01M4/583
- CPC H01M4/587
- H01M50/105
- H01M50/129
- H01M50/46
- CPC H01M10/0431
- H01M50/531
- H01M50/586
- CPC H01M10/0525
- C01B25/455
- C01B35/12
- H01M4/38
- H01M10/42
- CPC H01M10/0567
- H01M50/103
- H01M50/119
- H01M50/133
- CPC H01M50/103
- H01M50/176
- H01M50/184
- H01M50/191
- H01M50/645
- H01M50/533
- H01M50/204
- CPC H01M50/533
