公开(公告)号：US20250105410A1

公开(公告)日：2025-03-27

申请号：US18973126

申请日：2024-12-09

Applicant: Jiangsu Contemporary Amperex Technology Limited ,  CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yongfeng Xie ,  Quankun Li ,  Wenlin Zhou ,  Wenzhong Liu ,  Liqin Wang

IPC: H01M50/176 ,  H01M50/15 ,  H01M50/188 ,  H01M50/536 ,  H01M50/557 ,  H01M50/593

Abstract: Provided an end cover assembly, a battery cell, a battery, and an electric apparatus. The end cover assembly in the embodiments of the present application includes: an end cover provided with a first through hole; and an electrode leading-out member including a connecting plate and a post terminal protruding from a surface of the connecting plate, at least part of the post terminal being disposed in the first through hole, and the connecting plate being located on one side of the end cover, where the connecting plate is connected to a tab of an electrode assembly. In the technical solutions of the embodiments of the present application, the electrode leading-out member is provided, which increases contact area between a post and a tab, expands overcurrent area between the post terminal and the connecting plate, reduces internal resistance, lowers temperature rise, and improves the safety performance of a battery cell.

公开(公告)号：US20240413483A1

公开(公告)日：2024-12-12

申请号：US18808093

申请日：2024-08-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Liqin Wang ,  Quankun Li

IPC: H01M50/30 ,  B60L50/64 ,  H01M50/15

Abstract: An end cover assembly, a battery, and an electric device are provided. The end cover assembly is applied to a battery and includes an end cover, a breather valve, and a protective patch. The end cover has a first side facing inside of the battery and a second side opposite the first side and includes a first channel in communication with the first side and the second side. The breather valve includes a gas-permeable membrane in gas communication with the first channel. The gas-permeable membrane includes a gas-permeable portion opened towards the second side of the end cover. The protective patch is provided on the second side of the end cover and covers the gas-permeable portion. The battery includes the end cover assembly. The electric device includes the battery.