公开(公告)号：US20220320643A1

公开(公告)日：2022-10-06

申请号：US17842775

申请日：2022-06-16

申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

发明人： Huasheng SU ,  Chengyou XING ,  Wenlong KANG ,  Quankun LI ,  Peng WANG

IPC分类号： H01M50/147 ,  H01M50/30 ,  H01M50/102 ,  H01M50/533 ,  H01M50/543 ,  H01M50/143

摘要： An end cap assembly includes an end cap configured to close a housing of a battery cell, an adapting member configured to electrically connect an electrode assembly of the battery cell to an electrode terminal of the battery cell, and a supporting member between the adapting member and the end cap. An explosion-proof mechanism provided at the end cap is configured to be actuated to release an internal pressure of the battery cell when thermal runaway occurs in the battery cell. The supporting member is made of a high-temperature-resistant material. An orthographic projection of the adapting member on a first surface of the end cap at least partially overlaps an orthographic projection of the explosion-proof mechanism on the first surface of the end cap and an orthographic projection of the supporting member on the first surface. The first surface is a surface of the end cap facing the housing.

公开(公告)号：US20210376303A1

公开(公告)日：2021-12-02

申请号：US17120593

申请日：2020-12-14

申请人： Contemporary Amperex Technology Co., Limited

发明人： Chengyou XING ,  Chengdu LIANG ,  Ningsheng WU ,  Wenlong KANG ,  Peng WANG ,  Quankun LI ,  Lingyan JIANG

IPC分类号： H01M2/02

摘要： The present disclosure relates to a secondary battery, a battery module, and a device using the secondary battery as a power source. The secondary battery includes a casing and a top cover for connecting with the casing. The casing includes an end portion provided with an opening. The top cover is used to cover the opening of the casing. The top cover includes an inserting portion extending into the casing from the opening. A plurality of notches are provided on an inner side of the end portion of the casing or on a side wall of the inserting portion facing the casing. In the secondary battery, the battery module, and the device using the secondary battery as a power source according to the present disclosure, the secondary battery can reduce the possibility of short circuit occurring in the electrode assembly and improve the operational safety of the secondary battery.