公开(公告)号：US20230420812A1

公开(公告)日：2023-12-28

申请号：US18464945

申请日：2023-09-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Congsheng CHEN ,  Wenfa LIN ,  Yaoling WEN ,  Jiang LIN ,  Minghao TANG ,  Jia LIN

IPC: H01M50/566 ,  H01M50/103

CPC classification number: H01M50/566 ,  H01M50/103

Abstract: A tab welded structure includes a conductive member and a tab formed by stacking a plurality of layers of pieces in a first direction. The conductive member is welded to the tab to form a fused area. The fused area includes a first fused portion and a second fused portion. The first fused portion extends from the tab into the conductive member in the first direction. The second fused portion is demarcated from the first fused portion, the second fused portion is located at a side portion of the first fused portion, and the second fused portion is configured to be connected to the first fused portion and the tab.

公开(公告)号：US20240088447A1

公开(公告)日：2024-03-14

申请号：US18515260

申请日：2023-11-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hong WANG ,  Jia LIN ,  Jiang LIN ,  Jiang LIU

IPC: H01M10/0585 ,  H01M4/139 ,  H01M50/54

CPC classification number: H01M10/0585 ,  H01M4/139 ,  H01M50/54 ,  H01M2004/021

Abstract: An electrode assembly may include positive and negative electrode sheets, the positive and negative electrode sheets including positive and negative electrode current collectors and positive and negative electrode active material layers. The negative electrode sheet may be continuously bent and include a plurality of laminated segments and a plurality of bent segments for connecting the laminated segments; a plurality of the positive electrode sheets may be alternately laminated with the plurality of laminated segments in a first direction. An outermost positive electrode sheet may be a unilateral electrode having the positive electrode active material layer coated on an inner side rather than outer side of the positive electrode current collector thereof. The bent segment may be connected to an end of the laminated segment in a second direction; and the unilateral electrode may not extend beyond the adjacent bent segment.

公开(公告)号：US20240014476A1

公开(公告)日：2024-01-11

申请号：US18472000

申请日：2023-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jia LIN ,  Wenwei CHEN ,  Huan SHl ,  Jiang LIN

IPC: H01M50/14 ,  H01M50/133 ,  H01M50/103 ,  H01M50/529 ,  H01M10/04

CPC classification number: H01M50/14 ,  H01M50/133 ,  H01M50/103 ,  H01M50/529 ,  H01M10/049 ,  H01M10/0404 ,  H01M2220/20

Abstract: A battery cell includes an electrode assembly including a main body portion and a tab. The tab is connected with a side portion of the main body portion in a first direction. The battery cell further includes a protective frame, which is of an integrated structure and includes three segments of protective plates respectively used for protecting three side faces of the main body portion. The three segments of protective plates comprise a first plate, a second plate, and a third plate. The third plate is located between the first plate and the second plate, two ends of the third plate are respectively connected with a first end of the first plate and a first end of the second plate, and at least one of the first plate, the second plate, and the third plate is provided with an opening. The tab is led out from the opening.