COATING LIQUID, COATED SEPARATOR, SEPARATOR MANUFACTURING PROCESS AND BATTERY
DE602022030245T2Active Publication Date: 2026-02-11JIANGSU SENIOR NEW MATERIAL TECH CO LTD +1
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Patent Information
- Application Number
- DE602022030245
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-06-16
- Filing Date
- 2022-05-27
- Publication Date
- 2026-02-11
- Estimated Expiration
- 2042-05-27
AI Technical Summary
Technical Problem
Existing lithium-ion battery separators exhibit unsatisfactory heat resistance, which hinders their performance and development in applications such as hybrid electric vehicles and energy storage.
Method used
A novel preparation method involving a ceramic layer coated with an adhesive polymer resin containing a controlled amount of photoinitiator, followed by UV crosslinking, optimizes the heat resistance and breakage temperature of the separator by ensuring sufficient crosslinking without affecting surface resistance.
Benefits of technology
The method results in a separator with ultra-high heat resistance, thermal shrinkage rate less than 5% at 150°C, and a breakage temperature above 180°C, enhancing safety and performance.
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