公开(公告)号：US20240250347A1

公开(公告)日：2024-07-25

申请号：US18594020

申请日：2024-03-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI ,  Zhijun GUO ,  Chuan LI ,  Yingjun SONG

IPC: H01M50/103 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/15 ,  H01M50/342

CPC classification number: H01M50/103 ,  H01M10/613 ,  H01M10/6554 ,  H01M50/15 ,  H01M50/3425 ,  H01M10/625

Abstract: The present disclosure relates to a battery cell, a battery and an electric-powered device, and the battery cell includes: an electrode assembly; a shell adapted for receiving the electrode assembly; and a cap assembly adapted for closing an opening of the shell, wherein the shell includes a first wall and two second walls opposite each other, the first wall is adapted to connect the two second walls, the first wall has a wall thickness greater than that of the second wall, the first wall is provided with a pressure relief mechanism, and the pressure relief mechanism is adapted to be activated so as to release the pressure when a gas pressure inside the shell reaches a threshold.

公开(公告)号：US20240372230A1

公开(公告)日：2024-11-07

申请号：US18776293

申请日：2024-07-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI ,  Zhijun GUO ,  Peng WANG ,  Chuan LI

IPC: H01M50/536 ,  H01M10/0525 ,  H01M50/533 ,  H01M50/54

Abstract: The application provides an electrode assembly, a battery cell, a battery and an electric device. The electrode assembly includes a main body and at least one electrode tab. The electrode tab includes a plurality of sub electrode tabs extending from an end of the main body and arranged in stacked layers. The plurality of sub electrode tabs are connected by welding and forming a welding portion. The welding portion includes a thinned region. A thickness of the thinned region is less than a maximum thickness of the welding portion. The production efficiency and yield of batteries can be enhanced.

公开(公告)号：US20240297376A1

公开(公告)日：2024-09-05

申请号：US18662821

申请日：2024-05-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chuan LI ,  Zhijun GUO ,  Yuyong LEI ,  Peng WANG ,  Mengkai CAO

IPC: H01M50/103 ,  B60R16/033 ,  H01M50/107 ,  H01M50/133 ,  H01M50/15 ,  H01M50/152 ,  H01M50/169 ,  H01M50/209 ,  H01M50/249 ,  H01M50/289 ,  H01M50/548

CPC classification number: H01M50/103 ,  H01M50/107 ,  H01M50/133 ,  H01M50/15 ,  H01M50/152 ,  H01M50/169 ,  H01M50/209 ,  H01M50/249 ,  H01M50/289 ,  H01M50/548 ,  B60R16/033 ,  H01M2220/20

Abstract: A battery cell includes a housing and a cover. The housing is provided with an opening and a chamber. The housing includes an opening part and a body part, where the opening part surrounds the opening and the body part surrounds the chamber. The cover is connected to the opening part and closes the opening. At least a partial region of the body part is recessed relative to the opening part to form a recessed zone, a thickness of the recessed zone being less than that of the opening part.

公开(公告)号：US20240274925A1

公开(公告)日：2024-08-15

申请号：US18437150

申请日：2024-02-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei CHEN ,  Donglai ZHENG ,  Dongyang SHI ,  Chuan LI ,  Donglai GUAN

IPC: H01M50/133 ,  H01M10/04 ,  H01M50/169 ,  H01M50/586

CPC classification number: H01M50/133 ,  H01M50/586 ,  H01M10/0409 ,  H01M10/0431 ,  H01M50/169

Abstract: A battery cell includes a housing having an opening at an end along a first direction, an electrode assembly contained in the housing and having a main body and a tab connected to the main body, and an end cap configured for covering the opening. The housing includes a first side plate having a first plate portion and a second plate portion both arranged along the first direction. The second plate portion is located at an end of the first plate portion near the opening, and a thickness of the second plate portion is greater than a thickness of the first plate portion. An end of the second plate portion near the first plate portion extends beyond the welded portion in the first direction. The main body does not overlap with the second plate portion in a thickness direction for the first side plate.

公开(公告)号：US20240243450A1

公开(公告)日：2024-07-18

申请号：US18619693

申请日：2024-03-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chuan LI ,  Zhijun GUO ,  Yuyong LEI ,  Yingjun SONG

IPC: H01M50/586 ,  H01M50/583

CPC classification number: H01M50/586 ,  H01M50/583

Abstract: This application relates to an adapter assembly, a battery cell, a battery, and an electrical device. The adapter assembly includes: a current collecting component, including a terminal connecting portion, a fuse portion, and a tab connecting portion, where the fuse portion is connected between the terminal connecting portion and the tab connecting portion; and an insulation protection component, wrapping the fuse portion. The insulation protection component is configured to keep a fixed relative position between the terminal connecting portion and the tab connecting portion when the fuse portion is blown. A first mating portion is formed on at least one surface of the fuse portion in a thickness direction. At least a part of one of the first mating portion or the insulation protection component protrudes along the thickness direction and is embedded inside the other of the first mating portion or the insulation protection component.

公开(公告)号：US20240347826A1

公开(公告)日：2024-10-17

申请号：US18748526

申请日：2024-06-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei CHEN ,  Chuan LI ,  Donglai ZHENG ,  Qifan ZOU

IPC: H01M50/169 ,  B60L50/60 ,  H01M50/103 ,  H01M50/107 ,  H01M50/15 ,  H01M50/152 ,  H01M50/209 ,  H01M50/213

CPC classification number: H01M50/169 ,  H01M50/103 ,  H01M50/107 ,  H01M50/15 ,  H01M50/152 ,  H01M50/209 ,  H01M50/213 ,  B60L50/60 ,  H01M2220/20

Abstract: A shell includes a body part, a thickened part connected to the body part and arranged at the opening of the shell, at least a portion of the thickened part having a wall thickness larger than that of the body part, in which the thickened part is provided with a support part for supporting the cover that closes the opening.

公开(公告)号：US20240322309A1

公开(公告)日：2024-09-26

申请号：US18732279

申请日：2024-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei CHEN ,  Chuan LI ,  Zhijun GUO ,  Yuyong LEI ,  Donglai ZHENG

IPC: H01M50/133 ,  H01M50/169

CPC classification number: H01M50/133 ,  H01M50/169

Abstract: A housing of a battery cell has an opening at an end in a first direction and includes a first side plate, a second side plate and a first connection plate. The first side plate and the second side plate are arranged in a circumferential direction of the opening, the first connection plate is connected between the first side plate and the second side plate, and at least a part of the first connection plate is arcuate. The first side plate includes a first plate portion, a second plate portion and a third plate portion, the second plate portion is connected between the first plate portion and the first connection plate, and the third plate portion is located at a side of the first plate portion close to the opening.

公开(公告)号：US20240030562A1

公开(公告)日：2024-01-25

申请号：US18372137

申请日：2023-09-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zelin JIN ,  Wei CHEN ,  Tong PEI ,  Dongyang SHI ,  Chuan LI

IPC: H01M50/533 ,  H01M50/103 ,  H01M50/15 ,  H01M50/526 ,  H01M50/548 ,  H01M50/209 ,  H01M10/04

CPC classification number: H01M50/533 ,  H01M50/103 ,  H01M50/15 ,  H01M50/526 ,  H01M50/548 ,  H01M50/209 ,  H01M10/049 ,  H01M2220/20

Abstract: A battery cell may include: a housing, provided with a first opening at one end along a first direction; a first end cover, configured to seal the first opening, where the first end cover includes an end cover body and a first electrode terminal provided on the end cover body; an electrode assembly, provided inside the housing, where the electrode assembly may include a main body and a first tab led out from the main body; and a first adapter, including a first portion, a second portion, and a third portion, where the first portion may be located on a side, from which the first tab may be led out, of the main body and electrically connected to the first tab, and the second portion may be located on a side of the main body close to the first end cover and connected to the first portion.