公开(公告)号：US20230395929A1

公开(公告)日：2023-12-07

申请号：US18446365

申请日：2023-08-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Guangda SHI ,  Ying LI ,  Jinghao GUO ,  Yazhi CAI ,  Qingkui CHI ,  Libin ZHONG

IPC: H01M50/325 ,  H01M50/367 ,  H01M50/15 ,  H01M10/48 ,  H01M50/55 ,  H01M50/30

CPC classification number: H01M50/325 ,  H01M50/367 ,  H01M50/15 ,  H01M50/392 ,  H01M50/55 ,  H01M50/394 ,  H01M2220/20 ,  H01M10/486

Abstract: A top cover assembly includes a top cover, a connecting element, and a pressure relief valve. The top cover is configured to be connected to a case of the battery cell and provided with a through hole. The connecting element is arranged on the top cover and provided with an installation hole communicating with the through hole and a first channel extending to the outside from a hole wall of the installation hole. An opening, communicating with the outside, of the first channel is provided with a first gas permeable membrane. The pressure relief valve is arranged in the installation hole, is configured to slide in the installation hole under a pressure, and is provided with a second channel.