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：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：US20230361415A1

公开(公告)日：2023-11-09

申请号：US18353987

申请日：2023-07-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Donglai ZHENG ,  Dongyang SHI ,  Hao MA ,  Baiqing LI

IPC: H01M50/30 ,  H01M50/169 ,  H01M50/102 ,  H01M50/183

CPC classification number: H01M50/30 ,  H01M50/169 ,  H01M50/102 ,  H01M50/183 ,  H01M2220/20

Abstract: A battery cell, a battery, and an electrical device are provided. The battery cell comprises: a case with an opening; an electrode assembly accommodated within the case; and an end cover closing the opening, wherein the end cover is in sealed connection with the case through a first connection area and a second connection area, the strength of the first connection area is less than the strength of the second connection area, and the first connection area is configured to be actuated to release an internal pressure of the battery cell when the internal pressure exceeds a threshold. The battery cell, battery, and electrical device provided in the present application are capable of reducing the manufacturing cost of battery cells while ensuring the safety of batteries, and further reducing the assembly processes of the battery cells.