一种锂离子电池负极粘结剂组合物及其应用
By introducing nanocellulose of different lengths into the binder of lithium-ion battery negative electrode to form a three-dimensional network structure, the problem of poor dispersion of lithium-ion battery slurry is solved, the flexibility and coating effect of lithium-ion battery negative electrode sheet are improved, and the electrochemical performance and production efficiency of the battery are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING SHUOYINGFENG NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2023-11-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lithium-ion battery slurries have poor dispersibility, are prone to agglomeration or poor flowability, leading to screen clogging, coating difficulties, and scratches.
A binder composition containing sodium carboxymethyl cellulose, styrene-butadiene rubber, and nanocellulose of different lengths and diameters is used. The different lengths of nanocellulose enhance mechanical properties and dispersibility, forming a three-dimensional network structure, thereby improving the uniformity and screening performance of the slurry.
It significantly shortens the slurry sieving time, improves the flexibility and coating effect of lithium-ion battery negative electrode sheets, reduces surface defects, and enhances the electrochemical performance and production efficiency of batteries.
Smart Images
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