公开(公告)号：US20240166842A1

公开(公告)日：2024-05-23

申请号：US18531485

申请日：2023-12-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhipeng DAI ,  Miaomiao REN ,  Xianwei YANG ,  Yang LU ,  Xin ZHANG

IPC: C08K3/04 ,  C08F290/06

CPC classification number: C08K3/041 ,  C08F290/062 ,  C08K2201/001

Abstract: A composite conductive agent includes an organic polymer, and a hydroxylated carbon nanotube combined with the organic polymer. The organic polymer includes a polymer having a structural formula represented by formula (1),






In the formula (1), m is an integer ranging from 2500 to 20000, and R1 is a polymer structure including an ester group and a nitrile group.

公开(公告)号：US20220037670A1

公开(公告)日：2022-02-03

申请号：US17501905

申请日：2021-10-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jing LI ,  Wei LI ,  Qingrui Xue ,  Zige ZHANG ,  Yang ZHANG ,  Pengxiang WANG ,  Yang LU

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

Abstract: This application relates to the battery field, and specifically, to a positive electrode plate, an electrochemical apparatus, and an apparatus. The positive electrode plate in this application includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, where the current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer. A single-sided thickness D2 of the conductive layer satisfies 30 nm≤D2≤3 μm. A thickness D1 of the support layer satisfies 1 μm≤D1≤30 μm. The support layer is made of a polymer material or a polymer composite material. The electrode active material layer includes electrode active materials, a binder, and a conductive agent.

公开(公告)号：US20220037669A1

公开(公告)日：2022-02-03

申请号：US17501902

申请日：2021-10-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jing LI ,  Qingrui XUE ,  Wei LI ,  Zige ZHANG ,  Yang ZHANG ,  Yang LU

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

Abstract: This application relates to the battery field, and specifically, to an electrode plate, an electrochemical device, and an apparatus. The electrode plate of this application includes a current collector and an electrode active material layer disposed on at least one surface of the current collector, where the current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer, a single-sided thickness D2 of the conductive layer satisfies 30 nm≤D2≤3 μm, the support layer is made of a polymer material or a polymer composite material, and a thickness D1 of the support layer satisfies 1 μm≤D1≤30 μm; and the electrode active material layer includes an electrode active material, a binder, and a conductive agent.

公开(公告)号：US20240204204A1

公开(公告)日：2024-06-20

申请号：US18592838

申请日：2024-03-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lianhua LI ,  Xianwei YANG ,  Yang LU ,  Shaowei QI ,  Chen QI ,  Zirui WU ,  Chao JIN ,  Miaomiao REN ,  Yonghuang YE

IPC: H01M4/66 ,  H01M4/74

CPC classification number: H01M4/667 ,  H01M4/662 ,  H01M4/664 ,  H01M4/668 ,  H01M4/74

Abstract: The present application provides a current collector, electrode plate, cell, battery, device, manufacturing method, and apparatus. The current collector includes a conductive layer and a support layer, wherein the conducive layer is provided on a surface of the support layer, and the support layer includes an insulating base and a support structure embedded in the insulating base to enhance strength of the support layer, which not only increases an overall strength of the current collector and can improve the problem of tape breakage during processing, but also allows strength of the support layer to be close to strength of the conductive layer, narrowing the gap in structural strength between the support layer and the conductive layer, and reducing the difference in deformation between the conductive layer and the support layer during processing, so that it is conducive to improving processing performance of the current collector.