公开(公告)号：US11101493B2

公开(公告)日：2021-08-24

申请号：US16268364

申请日：2019-02-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengdu Liang ,  Zige Zhang ,  Qingrui Xue ,  Wei Li ,  Jing Li ,  Pengxiang Wang

IPC: H01M10/04 ,  H01M2/02 ,  H01M50/116

Abstract: The present disclosure provides a secondary battery and an electrode plate thereof. The electrode member comprises an insulating substrate, a first conducting layer and an active material layer; the first conducting layer is provided on a surface of the insulating substrate, the active material layer is provided at a side of the first conducting layer away from the insulating substrate; the first conducting layer is provided with a stripe-shape groove extending in a height direction, the stripe-shape groove is used for releasing stress of the first conducting layer. The secondary battery comprises an electrode assembly, the electrode assembly comprises the electrode member.

公开(公告)号：US11043677B2

公开(公告)日：2021-06-22

申请号：US17137077

申请日：2020-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zige Zhang ,  Wei Li ,  Qingrui Xue ,  Jing Li ,  Pengxiang Wang ,  Yang Zhang

IPC: H01M4/66 ,  H01M4/78 ,  H01M4/46

Abstract: The present application relates to a secondary battery and an electrode member thereof. The electrode member includes an insulating substrate, a conducting layer and an active material layer. The conducting layer is provided on a surface of the insulating substrate, and the conducting layer includes a main portion and a protruding portion extending from the main portion, the main portion is coated with the active material layer, the protruding portion is not coated with the active material layer. The active material layer includes a first portion and a second portion, the first portion is positioned at an end of the active material layer away from the protruding portion, the second portion is positioned at a side of the first portion close to the protruding portion, and a thickness of the first portion is less than a thickness of the second portion.

公开(公告)号：US20210151772A1

公开(公告)日：2021-05-20

申请号：US17132548

申请日：2020-12-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jing LI ,  Qingrui Xue ,  Zige Zhang ,  Wei Li ,  Xianwei Yang

IPC: H01M4/66 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/13

Abstract: This application relates to an electrode plate that includes a current collector and an electrode active material layer disposed on at least one surface of the current collector. The current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer. A single-side thickness D2 of the conductive layer satisfies 30 nm≤D2≤3 μm. The electrode active material layer includes an electrode active material, a binder, and a conductive agent unevenly distributed in a thickness direction of the electrode active material layer. A weight percentage of the conductive agent in an interior area of the electrode active material layer is higher than that in an exterior area of the electrode active material layer.