公开(公告)号：US20230327306A1

公开(公告)日：2023-10-12

申请号：US18202308

申请日：2023-05-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yanchao ZHANG ,  Feng PAN ,  Yuqian WEN

IPC: H01M50/645 ,  H01M50/166 ,  H01M50/186

CPC classification number: H01M50/645 ,  H01M50/166 ,  H01M50/186 ,  H01M50/102

Abstract: A battery cell may comprise: a case having an opening; an end cover assembly for closing the opening, wherein the end cover assembly may be provided with a liquid injection hole, and the liquid injection hole may comprise a first hole segment; a rivet, comprising a nail cap and a nail body, wherein the nail body may pass through the first hole segment, and the nail cap may be located on the side of the first hole segment away from the interior of the case; and a sealer, disposed between the nail cap and the end cover assembly, for sealing the first hole segment.

公开(公告)号：US20230395959A1

公开(公告)日：2023-12-07

申请号：US18447995

申请日：2023-08-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Feng PAN ,  Jun NI ,  Yuqian WEN ,  Shengwu ZHANG ,  Minghao TANG ,  Kanglin XIONG

IPC: H01M50/645 ,  H01M50/103 ,  H01M50/184 ,  H01M50/186

CPC classification number: H01M50/645 ,  H01M50/103 ,  H01M50/184 ,  H01M50/186 ,  H01M2220/20

Abstract: A battery cell includes a first wall and a sealing member. A liquid injection hole is disposed on the first wall, a first groove in a circular ring shape is disposed around the liquid injection hole, and an opening of the first groove faces an exterior of the battery cell. The sealing member includes a bottom wall and a side wall, the bottom wall covers one end of the liquid injection hole away from an interior of the battery cell, the side wall is at least partially accommodated in the first groove, the side wall is in an annular structure, and the side wall of the sealing member is frictionally welded to a bottom wall of the first groove to seal the liquid injection holed.