公开(公告)号：US20240372187A1

公开(公告)日：2024-11-07

申请号：US18773695

申请日：2024-07-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Shaojun NIU ,  Haizu JIN ,  Jipeng GUO ,  Yikuang JIN

IPC: H01M50/184 ,  H01M50/169

Abstract: A battery cell, a battery and an electric device are provided. The battery cell includes a casing, which is provided with an opening; an electrode assembly, which is accommodated inside the casing; and a cover body, which closes the opening and forms a sealing structure with the casing. One of the casing and the cover body is provided with a first flange portion; the first flange portion is connected to the other one of the casing and the cover body by means of a connection portion; the connection portion includes a first region and a second region; and the strength of the second region is lower than the strength of the first region.