Invention Publication
- Patent Title: CONDUCTIVE BINDER, PREPARATION METHOD, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND ELECTRICAL APPARATUS
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Application No.: US18411027Application Date: 2024-01-12
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Publication No.: US20240194882A1Publication Date: 2024-06-13
- Inventor: Cheng Li , Zipeng Zeng , Huihui Liu
- Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
- Applicant Address: CN Ningde
- Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
- Current Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
- Current Assignee Address: CN Ningde
- Main IPC: H01M4/62
- IPC: H01M4/62 ; C08F292/00 ; H01M4/13
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.
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.
Information query
