SAMSUNG SDI CO., LTD. patent applications on December 12th, 2024

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Patent Applications by SAMSUNG SDI CO., LTD. on December 12th, 2024

SAMSUNG SDI CO., LTD.: 20 patent applications

SAMSUNG SDI CO., LTD. has applied for patents in the areas of H01M10/0525 (10), H01M4/62 (6), H01M50/107 (5), H01M4/02 (5), H01M4/525 (5) H01M10/0567 (3), G02B5/3025 (2), H01M4/366 (2), C01G53/50 (1), G02B5/3016 (1)

With keywords such as: electrode, layer, lithium, positive, battery, material, including, rechargeable, active, and terminal in patent application abstracts.



Patent Applications by SAMSUNG SDI CO., LTD.

20240409434. POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, POSITIVE ELECTRODE, AND RECHARGEABLE LITHIUM BATTERIES_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Sung Ho CHOO of Yongin-si (KR) for samsung sdi co., ltd., Young-Ki KIM of Yongin-si (KR) for samsung sdi co., ltd., Youngsun KONG of Yongin-si (KR) for samsung sdi co., ltd., Seok Mun KANG of Yongin-si (KR) for samsung sdi co., ltd., Jaesang YOON of Yongin-si (KR) for samsung sdi co., ltd., Sungwook DOO of Yongin-si (KR) for samsung sdi co., ltd., Gwiwoon KANG of Yongin-si (KR) for samsung sdi co., ltd., Do-Wook JUN of Yongin-si (KR) for samsung sdi co., ltd., Byungwuk Kang of Yongin-si (KR) for samsung sdi co., ltd., Jaeyong JEONG of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): C01G53/00, H01M10/0525

CPC Code(s): C01G53/50



Abstract: a positive electrode active material of a rechargeable lithium battery may include a core particle including a lithium nickel-manganese-aluminum-based composite oxide, and a coating layer disposed on a surface of the core particle and including aluminum, wherein a nickel content of the core particle is about 60 mol % to about 80 mol % and an aluminum content of the core particle is about 1 mol % to about 3 mol % based on about 100 mol % of a total metal excluding lithium, and an aluminum content of the coating layer is about 0.1 mol % to about 2 mol % based on about 100 mol % of the total metal excluding lithium.


20240411074. POLARIZING PLATE AND OPTICAL DISPLAY DEVICE_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Ji Hwan PARK of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): G02B5/30, G02B1/14

CPC Code(s): G02B5/3016



Abstract: a polarizing plate and an optical display device including the same are disclosed. a polarizing plate includes a polarizer, and a first retardation layer laminated on a surface of the polarizer, the first retardation layer is a liquid crystal retardation layer, and the first retardation layer includes first regions on opposite end portions of the first retardation layer in a width direction, and a second region between the first regions, and each of the first regions has a tear strength lower than a tear strength of the second region.


20240411076. POLARIZING PLATE AND OPTICAL DISPLAY APPARATUS_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Seo Young KANG of Suwon-si (KR) for samsung sdi co., ltd., Il Woong BAEK of Suwon-si (KR) for samsung sdi co., ltd., Hyeon Im JOUNG of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): G02B5/30, G02B1/111, G02B1/14, H10K59/80

CPC Code(s): G02B5/3025



Abstract: a polarizing plate and an optical display apparatus including the same are disclosed. a polarizing plate includes: a polarizer; and a first protective film stacked on a surface of the polarizer, the first protective film has an overall haze of 40% to 60% and an internal haze of 3% to 7%, and the polarizing plate has a light transmittance ratio of 4 or less, as calculated according to equation 1, and a light transmittance ratio of 20 or more, as calculated according to equation 2.


20240411077. POLARIZING PLATE AND OPTICAL DISPLAY DEVICE_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Jung Hun YOU of Suwon-si (KR) for samsung sdi co., ltd., Bong Choon KIM of Suwon-si (KR) for samsung sdi co., ltd., Seong Hoon LEE of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): G02B5/30, G02F1/1335, G02F1/13363

CPC Code(s): G02B5/3025



Abstract: a polarizing plate and an optical display device are disclosed. a polarizing plate includes a polarizer, and a retardation layer laminated on a surface of the polarizer, the retardation layer includes a retardation film that satisfies a relationship of nx>nz>ny, where nx, ny, and nz are indexes of refraction of the retardation film in a slow axis direction, a fast axis direction, and a thickness direction of the retardation film, respectively, at a wavelength of 550 nm, an alignment direction of a main chain of a resin contained in the retardation film with respect to a light transmission axis of the polarizer is in a range from −5� to +5�, and the retardation film has a degree of biaxiality of 0.2 to 0.6 at the wavelength of 550 nm.


20240413298. POSITIVE ELECTRODE FOR STACK-TYPE RECHARGEABLE LITHIUM BATTERIES AND STACK-TYPE RECHARGEABLE LITHIUM BATTERIES_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Jungwoo SON of Yongin-si (KR) for samsung sdi co., ltd., Seonyoung KWON of Yongin-si (KR) for samsung sdi co., ltd., Eunok OH of Yongin-si (KR) for samsung sdi co., ltd., Yuntaek OH of Yongin-si (KR) for samsung sdi co., ltd., Minkyeong KANG of Yongin-si (KR) for samsung sdi co., ltd., Taehee KWAK of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/131, H01M4/02, H01M4/133, H01M4/525, H01M4/587, H01M10/0525, H01M10/0585

CPC Code(s): H01M4/131



Abstract: a positive electrode for a stack-type rechargeable lithium battery includes a current collector, a first positive electrode active material layer on one surface of the current collector, and a second positive electrode active material layer on the other surface of the current collector, wherein a loading level of the first positive electrode active material layer is about 5% or more higher than a loading level of the second positive electrode active material layer, each of the first positive electrode active material layer and the second positive electrode active material layer includes a first positive electrode active material in the form of secondary particles and a second positive electrode active material in the form of single particles, an average particle diameter of secondary particles of the first positive electrode active material is larger than an average particle diameter of single particles of the second positive electrode active material.


20240413309. NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Donghyun SHIN of Yongin-si (KR) for samsung sdi co., ltd., Jungwook CHA of Yongin-si (KR) for samsung sdi co., ltd., Hyejin KWON of Yongin-si (KR) for samsung sdi co., ltd., Youngyeol CHO of Yongin-si (KR) for samsung sdi co., ltd., Jaehong KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/36, B82Y30/00, H01M4/38, H01M4/583, H01M4/62, H01M10/052

CPC Code(s): H01M4/366



Abstract: disclosed are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. the negative electrode includes a current collector; a first layer on the current collector, the first layer consisting of a si-based material, a linear conductive material, a spherical conductive material, and a first binder; and a second layer on the first layer, the second layer consisting of crystalline carbon and a second binder.


20240413315. POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, POSITIVE ELECTRODE, AND RECHARGEABLE LITHIUM BATTERIES_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Sungwook DOO of Yongin-si (KR) for samsung sdi co., ltd., Youngsun KONG of Yongin-si (KR) for samsung sdi co., ltd., Young-Ki KIM of Yongin-si (KR) for samsung sdi co., ltd., Sung Ho CHOO of Yongin-si (KR) for samsung sdi co., ltd., Seok Mun KANG of Yongin-si (KR) for samsung sdi co., ltd., Jaesang YOON of Yongin-si (KR) for samsung sdi co., ltd., Gwiwoon KANG of Yongin-si (KR) for samsung sdi co., ltd., Dowook JUN of Yongin-si (KR) for samsung sdi co., ltd., Byungwuk KANG of Yongin-si (KR) for samsung sdi co., ltd., Jaeyong JEONG of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/36, C01G53/00, H01M4/02, H01M4/131, H01M4/525, H01M4/62, H01M10/0525, H01M10/42

CPC Code(s): H01M4/366



Abstract: a positive electrode active material, a method of preparing the same, a positive electrode and a rechargeable lithium battery including the same are provided. the positive electrode active material includes a core particle including lithium nickel-manganese-aluminum-based composite oxide and a coating layer disposed on a surface of the core particles and containing aluminum and yttrium, wherein a nickel content (e.g., amount) in the core particle is greater than or equal to about 60 mol % based on 100 mol % of a total metal excluding lithium in the positive electrode active material, and an aluminum content (e.g., amount) of the coating layer is about 0.1 mol % to about 2 mol %, and a yttrium content (e.g., amount) of the coating layer is about 0.05 mol % to about 1 mol %, each based on 100 mol % of the total metal excluding lithium in the positive electrode active material.


20240413322. RECHARGEABLE LITHIUM BATTERIES_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Seonju CHOI of Yongin-si (KR) for samsung sdi co., ltd., Kyoungsoo KIM of Yongin-si (KR) for samsung sdi co., ltd., Yunhee KIM of Yongin-si (KR) for samsung sdi co., ltd., Dohyung PARK of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/525, H01M4/02, H01M10/0525, H01M10/0567, H01M10/0569

CPC Code(s): H01M4/525



Abstract: a rechargeable lithium battery including a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte is provided. the positive electrode includes a first positive electrode active material including lithium nickel-based composite oxide in the form of secondary particles as a plurality of primary particles agglomerated. the positive electrode includes a second positive electrode active material including lithium nickel-based composite oxide in the form of single particles. the non-aqueous electrolyte includes an organic solvent, a lithium salt, and an additive, and the additive includes a bicyclic sulfate compound.


20240413341. ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Jinhyon LEE of Yongin-si (KR) for samsung sdi co., ltd., Ungyu PAIK of Seoul (KR) for samsung sdi co., ltd., Taeseup SONG of Seoul (KR) for samsung sdi co., ltd., Hyungjun LEE of Seoul (KR) for samsung sdi co., ltd., Jiwoon KIM of Seoul (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/62, H01M4/02, H01M4/131, H01M4/525

CPC Code(s): H01M4/625



Abstract: provided are an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. the electrode includes a current collector; and an electrode active material layer on the current collector and including an active material, a first conductive material, and a binder, wherein the first conductive material includes a core including graphene, graphene oxide, reduced graphene oxide, or a combination thereof; and a coating layer on a surface of the core and including alumina nanoparticles.


20240413346. ELECTRODE ASSEMBLY FOR RECHARGEABLE LITHIUM BATTERIES AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Hyo Jung SONG of Suwon-si (KR) for samsung sdi co., ltd., Jin Hee LEE of Suwon-si (KR) for samsung sdi co., ltd., Ho Sung YANG of Suwon-si (KR) for samsung sdi co., ltd., Kyo Seon KOO of Suwon-si (KR) for samsung sdi co., ltd., Duck Jae YOU of Suwon-si (KR) for samsung sdi co., ltd., Jung Hyun NAM of Suwon-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/62, H01M4/02, H01M4/133, H01M4/36, H01M4/587, H01M10/0525

CPC Code(s): H01M4/628



Abstract: an electrode assembly for a rechargeable lithium battery and a rechargeable lithium battery are disclosed. the electrode assembly for a rechargeable lithium battery includes a negative electrode and a positive electrode, wherein the negative electrode includes a current collector; a negative electrode active material layer on the current collector and including a negative electrode material; and a first functional layer and an organic-inorganic composite layer sequentially on the negative electrode active material layer, the first functional layer being integrated with the negative electrode material layer, and wherein the positive electrode includes a second functional layer facing the organic-inorganic composite layer.


20240413349. ELECTRODE CURRENT COLLECTOR FOR RECHARGEABLE LITHIUM BATTERY, ELECTRODE, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Ki Chun KIL of Yongin-si (KR) for samsung sdi co., ltd., Chaewoong CHO of Yongin-si (KR) for samsung sdi co., ltd., Jaehwan HA of Yongin-si (KR) for samsung sdi co., ltd., Keemin PARK of Seoul (KR) for samsung sdi co., ltd., Taeseup SONG of Seoul (KR) for samsung sdi co., ltd., Ungyu PAIK of Seoul (KR) for samsung sdi co., ltd., Seungcheol MYEONG of Seoul (KR) for samsung sdi co., ltd.

IPC Code(s): H01M4/66, H01M4/36, H01M4/62, H01M10/0525

CPC Code(s): H01M4/667



Abstract: a current collector for a rechargeable lithium battery according to an embodiment includes a substrate; and a functional layer on the substrate, wherein the functional layer includes a flame retardant, a conductive material, and a binder.


20240413396. ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Seunghyeon SON of Yongin-si (KR) for samsung sdi co., ltd., Tae Hyon BAE of Yongin-si (KR) for samsung sdi co., ltd., Sanghyung KIM of Yongin-si (KR) for samsung sdi co., ltd., Yunhee KIM of Yongin-si (KR) for samsung sdi co., ltd., Arum YU of Yongin-si (KR) for samsung sdi co., ltd., Harim LEE of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0567, H01M10/0525, H01M10/0569

CPC Code(s): H01M10/0567



Abstract: an electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a composition including a first compound and a second compound, the first compound is an imide cesium salt compound represented by chemical formula 1, and the second compound is a crown ether compound represented by chemical formula 2. details of chemical formulae 1 and 2 are as described in the specification.


20240413397. ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Tae Jin LEE of Yongin-si (KR) for samsung sdi co., ltd., Si-Young CHA of Yongin-si (KR) for samsung sdi co., ltd., Inah KANG of Yongin-si (KR) for samsung sdi co., ltd., Minji SIM of Yongin-si (KR) for samsung sdi co., ltd., Hanmam JEONG of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0567, C07D405/14, C07F9/06, C07F9/6574, H01M10/0525, H01M10/0569

CPC Code(s): H01M10/0567



Abstract: an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. the electrolyte includes a non-aqueous organic solvent; a lithium salt; a first additive represented by chemical formula 1, and a second additive represented by chemical formula 2.


20240413398. ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Minji SIM of Yongin-si (KR) for samsung sdi co., ltd., Tae Jin LEE of Yongin-si (KR) for samsung sdi co., ltd., Si-Young CHA of Yongin-si (KR) for samsung sdi co., ltd., Inah KANG of Yongin-si (KR) for samsung sdi co., ltd., Hanmam JEONG of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0567, H01M10/052, H01M10/0569

CPC Code(s): H01M10/0567



Abstract: the present disclosure relates to an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same. according to the present embodiments, an electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent; a lithium salt; a first additive represented by chemical formula 1; and a second additive, being a nitrile-based additive:


20240413398. ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Minji SIM of Yongin-si (KR) for samsung sdi co., ltd., Tae Jin LEE of Yongin-si (KR) for samsung sdi co., ltd., Si-Young CHA of Yongin-si (KR) for samsung sdi co., ltd., Inah KANG of Yongin-si (KR) for samsung sdi co., ltd., Hanmam JEONG of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0567, H01M10/052, H01M10/0569

CPC Code(s): H01M10/0567



Abstract:


20240413401. RECHARGEABLE LITHIUM BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Seunghyeon SON of Yongin-si (KR) for samsung sdi co., ltd., Tae Hyon BAE of Yongin-si (KR) for samsung sdi co., ltd., Yunhee KIM of Yongin-si (KR) for samsung sdi co., ltd., Harim LEE of Yongin-si (KR) for samsung sdi co., ltd., Arum YU of Yongin-si (KR) for samsung sdi co., ltd., Sanghyung KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0568, H01M4/525, H01M4/62, H01M10/0525

CPC Code(s): H01M10/0568



Abstract: a rechargeable lithium battery includes a positive electrode; a negative electrode; and an electrolyte, where the positive electrode includes a carbon nanotube as a conductive material, and the electrolyte includes an imide cesium salt compound represented by chemical formula 1 as an additive:


20240413401. RECHARGEABLE LITHIUM BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Seunghyeon SON of Yongin-si (KR) for samsung sdi co., ltd., Tae Hyon BAE of Yongin-si (KR) for samsung sdi co., ltd., Yunhee KIM of Yongin-si (KR) for samsung sdi co., ltd., Harim LEE of Yongin-si (KR) for samsung sdi co., ltd., Arum YU of Yongin-si (KR) for samsung sdi co., ltd., Sanghyung KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M10/0568, H01M4/525, H01M4/62, H01M10/0525

CPC Code(s): H01M10/0568



Abstract:


20240413442. SEALING TAPE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Ik Hwan CHO of Yongin-si (KR) for samsung sdi co., ltd., Jiwan YOU of Yongin-si (KR) for samsung sdi co., ltd., Changhee WOO of Yongin-si (KR) for samsung sdi co., ltd., Jinhwan PARK of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/184, H01M10/0525, H01M10/0587, H01M50/107, H01M50/186, H01M50/193, H01M50/197, H01M50/198

CPC Code(s): H01M50/184



Abstract: a sealing tape for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. the sealing tape includes a substrate layer and an adhesive layer on the substrate layer, wherein the substrate layer includes an ethylene vinyl acetate resin including an ethylene-derived repeating unit and a vinyl acetate-derived repeating unit, and based on 100 wt % of the ethylene vinyl acetate resin, a content (e.g., amount) of the repeating unit derived from the vinyl acetate is about 5 wt % to about 15 wt %.


20240413487. RECHARGEABLE LITHIUM BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Wonchull HAN of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/486, H01M10/04, H01M10/052, H01M50/107, H01M50/474, H01M50/483

CPC Code(s): H01M50/486



Abstract: the present disclosure relates to a rechargeable lithium battery. some embodiments provide a rechargeable lithium battery including an electrode assembly being wound around a winding axis and including a positive electrode plate having a positive electrode uncoated portion and a positive electrode coated portion; a negative electrode plate having a negative electrode uncoated portion and a negative electrode coated portion; and a separator between the positive electrode plate and the negative electrode plate, wherein a ceramic insulating film is on at least a portion of the positive electrode uncoated portion, the ceramic insulating film includes ceramic and a binder, and a binder content (e.g., amount) based on a total amount of the ceramic insulating film is greater than or equal to about 60 wt %.


20240413497. CYLINDRICAL SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Hyun Ki JUNG of Yongin-si (KR) for samsung sdi co., ltd., Gun Gue PARK of Yongin-si (KR) for samsung sdi co., ltd., Sung Gwi KO of Yongin-si (KR) for samsung sdi co., ltd., Gwan Hyeon YU of Yongin-si (KR) for samsung sdi co., ltd., Myung Seob KIM of Yongin-si (KR) for samsung sdi co., ltd., Yoon Sun YOO of Yongin-si (KR) for samsung sdi co., ltd., Woo Tae JUN of Yongin-si (KR) for samsung sdi co., ltd., Ho Jae LEE of Yongin-si (KR) for samsung sdi co., ltd., Mun Sung KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/559, H01M50/107, H01M50/167, H01M50/179, H01M50/186, H01M50/531, H01M50/567

CPC Code(s): H01M50/559



Abstract: a cylindrical secondary battery includes an electrode assembly; a cylindrical can accommodating the electrode assembly; and a terminal portion including a rivet terminal coupled to one side in the longitudinal direction of the can and electrically connected to the electrode assembly and at least one insulator between the can and the rivet terminal to insulate the can and the rivet terminal from each other. the battery also includes a rotation preventing portion on the can and/or the terminal portion. since a structure for preventing rotation of the rivet terminal is provided on the upper surface of the can or the rivet head or the main body to which the rivet terminal is fastened, the rivet terminal may not rotate due to an external force or vibration. therefore, the stability and reliability of the secondary battery can be improved.


20240413501. CYLINDRICAL SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Sung Gwi KO of Yongin-si (KR) for samsung sdi co., ltd., Gun Gue PARK of Yongin-si (KR) for samsung sdi co., ltd., Gwan Hyeon YU of Yongin-si (KR) for samsung sdi co., ltd., Woo Tae JUN of Yongin-si (KR) for samsung sdi co., ltd., Yoon Sun YOO of Yongin-si (KR) for samsung sdi co., ltd., Myung Seob KIM of Yongin-si (KR) for samsung sdi co., ltd., Hyun Ki JUNG of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/567, H01M10/04, H01M50/107, H01M50/152, H01M50/167, H01M50/179, H01M50/533, H01M50/559, H01M50/586, H01M50/59

CPC Code(s): H01M50/567



Abstract: a cylindrical secondary battery includes: an electrode assembly; a cylindrical can accommodating the electrode assembly and having a terminal hole at a first end; and a terminal portion coupled to the first end of the can and electrically connected to the electrode assembly, and the can further includes a coupling groove and a coupling protrusion adjacent to the terminal hole on a portion through which the terminal hole passes. in the cylindrical secondary battery according to embodiments of the present disclosure, a sealing force of the cylindrical secondary battery may be increased by providing a groove and a protrusion in the can that is a region to which a rivet terminal is coupled.


20240413503. SECONDARY BATTERY_simplified_abstract_(samsung sdi co., ltd.)

Inventor(s): Hyun Ki JUNG of Yongin-si (KR) for samsung sdi co., ltd., Gun Gue PARK of Yongin-si (KR) for samsung sdi co., ltd., Sung Gwi KO of Yongin-si (KR) for samsung sdi co., ltd., Gwan Hyeon YU of Yongin-si (KR) for samsung sdi co., ltd., Myung Seob KIM of Yongin-si (KR) for samsung sdi co., ltd., Yoon Sun YOO of Yongin-si (KR) for samsung sdi co., ltd., Woo Tae JUN of Yongin-si (KR) for samsung sdi co., ltd., Ho Jae LEE of Yongin-si (KR) for samsung sdi co., ltd., Mun Sung KIM of Yongin-si (KR) for samsung sdi co., ltd.

IPC Code(s): H01M50/588, H01M50/107, H01M50/167, H01M50/567, H01M50/593

CPC Code(s): H01M50/588



Abstract: a secondary battery includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator interposed therebetween, a can accommodating the electrode assembly, and a terminal portion including a rivet terminal coupled to one side of the can in a longitudinal direction and electrically connected to the first electrode plate, and an insulator between the can and the rivet terminal to insulate the can from the rivet terminal, and having a stepped structure in an area contacting the rivet terminal. by reducing or minimizing a height difference between the positive electrode terminal and the insulator, shape deformation of the electrode assembly can be reduced or prevented during the manufacturing process. by reducing the thickness and weight of the insulator, the size of the electrode assembly can be increased, and the capacity of the secondary battery can be increased.


SAMSUNG SDI CO., LTD. patent applications on December 12th, 2024