公开(公告)号：US20190027712A1

公开(公告)日：2019-01-24

申请号：US16138534

申请日：2018-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zengbin WEI ,  Chengdong SUN ,  Dong DUAN ,  Xinghui WANG ,  Xiang LI

IPC: H01M2/02 ,  H01M10/04

Abstract: The present disclosure provides a pouch-type secondary battery, which comprises an electrode assembly, a packaging film. The packaging film comprises a first receiving portion, a second receiving portion, a third receiving portion. The third receiving portion is parallel to the first receiving portion, a portion of the electrode tab extends out of the third receiving portion. A joint location between the second receiving portion and the first receiving portion and a joint location between the second receiving portion and the third receiving portion each are formed with a bending angle, the bending angles are equal and each range from 130° to 160°. Because the bending angles in the range are relatively large, when the packaging film is tightly pressed, there is no need to apply a too large pressure on the second receiving portion and the third receiving portion, so the electrode tab is not easily damaged or even ruptured.

公开(公告)号：US20180159107A1

公开(公告)日：2018-06-07

申请号：US15816981

申请日：2017-11-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang LI ,  Jiajun WANG ,  Rulai CAI ,  Peng WANG ,  Wei YANG

IPC: H01M2/20 ,  H01M2/30 ,  H01M2/06

CPC classification number: H01M2/202 ,  H01M2/04 ,  H01M2/06 ,  H01M2/22 ,  H01M2/30 ,  H01M2/348 ,  H01M2200/103

Abstract: The present disclosure provides a secondary battery which comprises: a cap plate provided with a first electrode terminal and a second electrode terminal; an electrode assembly comprising a main body, a first electrode tab and a second electrode tab; a first connecting piece connected between the first electrode tab and the first electrode terminal. The second electrode tab is electrically connected with the second electrode terminal. The first connecting piece includes a first electrode terminal connecting portion, a first electrode tab connecting portion and a first fusing portion. The secondary battery further comprises an insulating piece adhered on a surface of the first connecting piece which is connected with the first electrode tab, and the insulating piece at least covers an edge of the first electrode terminal connecting portion close to the first electrode tab, so as to isolate the first electrode tab from the first electrode terminal connecting portion.