一种新型硅负极粘结剂及其制备方法及应用
By using a novel binder CG@PEO composed of CS, GO and PEO, the problems of volume expansion and low conductivity of silicon-carbon anode materials in lithium-ion batteries are solved, thereby improving the cycle life and electrochemical performance of the battery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUN YAT SEN UNIV
- Filing Date
- 2023-12-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing silicon-carbon anode materials suffer from problems such as volume expansion, low conductivity, and insufficient interfacial compatibility in lithium-ion batteries, leading to battery cycle life and performance degradation.
A novel binder composed of chondroitin sulfate (CS), graphene oxide (GO), and polyethylene oxide (PEO) is used to form CG@PEO binder through a polymerization reaction, which improves the ion conductivity, electronic conductivity, and interfacial compatibility of silicon anodes, and enhances the cohesion of the electrode sheets and the dispersibility of the slurry.
It improves the cycle stability and rate performance of silicon-carbon anodes, and enhances the long-term stability and electrochemical energy storage performance of lithium-ion batteries.
Smart Images
Figure CN117903740B_ABST