公开(公告)号：US11264683B2

公开(公告)日：2022-03-01

申请号：US17134248

申请日：2020-12-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Qinglin Bai ,  Yanan Cai ,  Hongbo Ding

IPC: H01M50/586 ,  H01M50/147 ,  H01M50/463 ,  H01M50/547 ,  H01M10/04

Abstract: Embodiments of the present disclosure relates to an electrode assembly, a secondary battery, a battery pack and a device. The electrode assembly includes: an electrode unit including an electrode body and an electrode terminal part electrically connected with the electrode body; and a first insulating film for being wound around the electrode unit, the first insulating film including a connection part and an extension part connected with each other, the connection part being provided with an adhesive area for connecting with the electrode terminal part, the extension part being a part of the first insulating film extending beyond an end face of the electrode terminal part, and at least part of the extension part being provided as a non-adhesive area.

公开(公告)号：US20220149495A1

公开(公告)日：2022-05-12

申请号：US17586288

申请日：2022-01-27

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Qinglin Bai ,  Yanan Cai ,  Hongbo Ding

IPC: H01M50/586 ,  H01M50/147 ,  H01M50/463 ,  H01M50/547 ,  H01M10/04

Abstract: Embodiments of the present disclosure relates to an electrode assembly, a secondary battery, a battery pack and a device. The electrode assembly includes: an electrode unit including an electrode body and an electrode terminal part electrically connected with the electrode body; and a first insulating film for being wound around the electrode unit, the first insulating film including a connection part and an extension part connected with each other, the connection part being provided with an adhesive area for connecting with the electrode terminal part, the extension part being a part of the first insulating film extending beyond an end face of the electrode terminal part, and at least part of the extension part being provided as a non-adhesive area.