公开(公告)号：US20230411773A1

公开(公告)日：2023-12-21

申请号：US18239762

申请日：2023-08-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chao JIN ,  Miaomiao REN ,  Tianguang ZHU ,  Zhipeng DAI ,  Guanfusheng YAN ,  Fenggang ZHAO

IPC: H01M50/342 ,  H01M50/103 ,  H01M50/15 ,  H01M50/169 ,  H01M50/627

CPC classification number: H01M50/3425 ,  H01M50/103 ,  H01M50/15 ,  H01M50/169 ,  H01M50/627

Abstract: The present application provides a battery cell, a battery, and an electrical apparatus. The battery cell may comprise a case, a cover plate, and a pressure relief apparatus. The case may have an opening; the cover plate may cover the opening, and the cover plate may be welded with the case to form a welding seam; the pressure relief apparatus may be disposed on the cover plate, the pressure relief apparatus may be provided with a weak region, the weak region may be configured to be broken to release internal pressure when the internal pressure or temperature of the battery cell reaches a threshold, and the minimum distance between the edge of the weak region and the welding seam may be greater than or equal to 3 mm.

公开(公告)号：US20240166842A1

公开(公告)日：2024-05-23

申请号：US18531485

申请日：2023-12-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhipeng DAI ,  Miaomiao REN ,  Xianwei YANG ,  Yang LU ,  Xin ZHANG

IPC: C08K3/04 ,  C08F290/06

CPC classification number: C08K3/041 ,  C08F290/062 ,  C08K2201/001

Abstract: A composite conductive agent includes an organic polymer, and a hydroxylated carbon nanotube combined with the organic polymer. The organic polymer includes a polymer having a structural formula represented by formula (1),






In the formula (1), m is an integer ranging from 2500 to 20000, and R1 is a polymer structure including an ester group and a nitrile group.