公开(公告)号：US20240347824A1

公开(公告)日：2024-10-17

申请号：US18754203

申请日：2024-06-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin Zhou ,  Liangfan Xu ,  Daowei Yang ,  Jian Zhou ,  Quankun Li ,  Peng Wang

IPC: H01M50/15 ,  H01M50/103 ,  H01M50/131 ,  H01M50/553

CPC classification number: H01M50/15 ,  H01M50/103 ,  H01M50/131 ,  H01M50/553

Abstract: Provided are an end cover assembly, a battery cell, a battery, and an electrical device, relating to the field of batteries. The end cover assembly includes an end cover, a groove, and a reinforcing portion. The end cover has a first surface and a second surface opposite in its thickness direction. The groove is recessed from the first surface in a direction towards the second surface. The reinforcing portion protrudes from the first surface and/or the second surface, and surrounds the groove.

公开(公告)号：US20240079693A1

公开(公告)日：2024-03-07

申请号：US18501040

申请日：2023-11-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin Zhou ,  Quankun Li ,  Daowei Yang ,  Peng Wang

IPC: H01M50/15 ,  H01M50/103 ,  H01M50/186 ,  H01M50/209 ,  H01M50/342

CPC classification number: H01M50/15 ,  H01M50/103 ,  H01M50/186 ,  H01M50/209 ,  H01M50/3425 ,  H01M2220/20

Abstract: Provided are an end cover assembly, a battery cell, a battery, and an electrical apparatus. The end cover assembly is for a battery cell and comprises: an end cover provided with a pressure relief through hole; a pressure relief mechanism connected to the end cover and covering the pressure relief through hole, and configured to be actuated to release the pressure inside the battery cell when the pressure reaches a threshold; and a reinforcing mechanism, located on a side of the end cover facing away from an electrode assembly of the battery cell, and covering at least a part of the pressure relief through hole. The reinforcing mechanism is at least connected to a portion of the end cover at two sides of the pressure relief through hole along a first direction to enhance the strength of the end cover at the pressure relief through hole.