复合隔膜及其制备方法和电池
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU ZENIO NEW ENERGY BATTERY TECH CO LTD
- Filing Date
- 2025-10-21
- Publication Date
- 2026-07-17
AI Technical Summary
The ceramic coating of existing lithium-ion battery separators is fragile, lacks flexibility, has weak interfacial adhesion, and poor electrolyte affinity, which leads to battery shrinkage at high temperatures and poor electrolyte wettability.
The composite membrane design employs a layered structure. The first coating consists of silk fibroin with a low β-sheet structure, while the second coating consists of silk fibroin with a high β-sheet structure and modified ceramic particles. The interfacial bonding strength is enhanced through chemical bonds and hydrogen bonds, and the hydrophilicity of silk fibroin is used to improve electrolyte wettability.
It enhances the flexibility and thermal stability of the composite separator, improves electrolyte wettability and liquid retention, and enhances the mechanical strength and safety of the battery.
Smart Images
Figure CN121123573B_ABST