公开(公告)号：US20240356116A1

公开(公告)日：2024-10-24

申请号：US18762426

申请日：2024-07-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haizu JIN ,  Qingkui CHI ,  Yang ZOU ,  Tao PU

IPC: H01M50/131 ,  H01M10/04 ,  H01M50/186 ,  H01M50/536 ,  H01M50/627

CPC classification number: H01M50/131 ,  H01M10/0404 ,  H01M50/186 ,  H01M50/536 ,  H01M50/627

Abstract: A battery cell includes an electrode assembly, a case, an end cover, a first current collecting member, and a second current collecting member, where the case is provided with a first position-limiting portion protruding from the inner side face; the first current collecting member is used for connecting tabs; the second current collecting member is used for connecting the first current collecting member and the first position-limiting portion; and the first current collecting member includes a first region overlapping with the first position-limiting portion along a thickness direction and a second region not overlapping with the first position-limiting portion, the first region and the second region both being welded to the tabs. The first region can be welded to the tab of an outer ring layer, and the second region can be welded to the tab of an inner ring layer, which enables uniform current conduction to be realized.

公开(公告)号：US20240154268A1

公开(公告)日：2024-05-09

申请号：US18412333

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui CHI ,  Tao PU ,  Yang ZOU ,  Wenjie YU ,  Zhisheng CHAI ,  Haizu JIN

IPC: H01M50/536 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/213 ,  H01M50/474

CPC classification number: H01M50/536 ,  H01M10/0404 ,  H01M10/0431 ,  H01M10/049 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/213 ,  H01M50/474

Abstract: A battery cell includes a shell, an end cover, an electrode assembly, and a current collector component. The shell has an opening, and the inner surface of the shell is provided with a first limit part in a protruding manner. The end cover covers the opening. The electrode assembly and the end cover are respectively located on both sides of the first limit part, and the electrode assembly has a tab on the side facing the end cover. The current collector component includes a body part and a connecting part, and the connecting part is connected to the first limit part. The body part includes a first welding region and a second welding region, the first welding region is located on the periphery of the second welding region, the first welding region and the second welding region are separated by the connection position between the connecting part and the body part.