公开(公告)号：US20240194882A1

公开(公告)日：2024-06-13

申请号：US18411027

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Cheng Li ,  Zipeng Zeng ,  Huihui Liu

IPC: H01M4/62 ,  C08F292/00 ,  H01M4/13

CPC classification number: H01M4/623 ,  C08F292/00 ,  H01M4/13 ,  H01M2004/028

Abstract: The present application provides a conductive binder, the conductive binder is formed by reacting polyimide with a conductive agent, and the conductive binder comprises a structural unit represented by formula I containing trifluoromethyl,




wherein, R1 and R2 are each independently selected from substituted C6-C25 aromatic groups. For the conductive binder, in the case of a low content of conductive agent and a low amount of conductive binder added, it can greatly reduce the membrane resistance, improve the adhesion of the electrode plate and the cycling capacity retention rate of the battery, and reduce the internal resistance increase rate of the battery in the cycling process.