公开(公告)号：US20230420655A1

公开(公告)日：2023-12-28

申请号：US18464888

申请日：2023-09-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hengxu ZHUANG ,  Yanying WU ,  Xinghui WANG

IPC: H01M4/36 ,  H01M4/60 ,  H01M4/62 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/364 ,  H01M4/60 ,  H01M4/623 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028

Abstract: A positive electrode sheet includes a positive electrode current collector and a positive electrode film disposed on at least one surface of the positive electrode current collector and including an additive. The additive includes a structural unit made from acrylonitrile and a structural unit made from a monomer represented by following formula:




where R1, R2, R3, and R4 are each independently selected from hydrogen, an alkyl group with 1-8 carbon atoms, or a saturated carboxylic acid group with 1-8 carbon atoms, and at least one of R1, R2, R3, or R4 is selected from the saturated carboxylic acid group with 1-8 carbon atoms.