公开(公告)号：US20240347863A1

公开(公告)日：2024-10-17

申请号：US18756687

申请日：2024-06-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Chunguang XU ,  Quankun LI ,  Peng WANG

IPC: H01M50/474 ,  H01M10/48 ,  H01M50/107

CPC classification number: H01M50/474 ,  H01M10/488 ,  H01M50/107 ,  H01M2220/20

Abstract: The present application provides a battery cell, a battery, and an electrical device. The battery cell comprises a case, a cell, a first expandable member, and a second expandable member. The cell is arranged inside the case. There is a gap between an outer wall of the cell and an inner wall of the case. The first and second expandable members are both arranged in the gap and are configured to expand when encountering an electrolyte solution to fill the gap. The first and second expandable members are spaced apart and can expand when encountering the electrolyte solution. After expansion, the gap between the cell and the case can be reduced, thereby restricting relative movement between the cell and the case, reducing the possibility of fatigue fracture of connecting sheets, and contributing to protecting tabs.

公开(公告)号：US20240332726A1

公开(公告)日：2024-10-03

申请号：US18742339

申请日：2024-06-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Chunguang XU ,  Quankun LI ,  Peng WANG ,  Haizu JIN

IPC: H01M50/375 ,  H01M50/107 ,  H01M50/179 ,  H01M50/367 ,  H01M50/533 ,  H01M50/586 ,  H01M50/59

CPC classification number: H01M50/375 ,  H01M50/107 ,  H01M50/179 ,  H01M50/367 ,  H01M50/533 ,  H01M50/586 ,  H01M50/59 ,  H01M2200/10 ,  H01M2200/20 ,  H01M2220/20

Abstract: A battery cell, a battery, and an electric device are provided. The battery cell includes: a housing having a first wall; a pressure relief mechanism provided on the first wall; an electrode leading-out portion provided on the housing; an electrode assembly provided in the housing and provided with tabs; and an adapter connected to the electrode leading-out portion and the tabs, wherein the adapter is provided with a reinforcing portion, and in the thickness direction of the first wall, the projection of the reinforcing portion on the first wall at least partially covers the pressure relief mechanism.