一种锂离子电池隔膜涂料及其制备方法与应用
By coating the surface of a lithium-ion battery separator with a silicon oxynitride composition to form a three-dimensional framework network, the problems of insufficient heat resistance and wettability of the separator are solved, thereby improving the high-temperature stability and electrochemical performance of the battery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANCHANG UNIV GONGQINGCHENG OPTICAL HYDROGEN STORAGE TECH RES INST
- Filing Date
- 2024-04-03
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lithium-ion battery separators have insufficient heat resistance and electrolyte wettability, which makes them prone to shrinkage and short circuits at high temperatures. Furthermore, the use of submicron-sized inorganic ceramic particles for coating can easily clog pores and affect electrochemical performance.
A coating using a silicon oxynitride composition, comprising silicon oxynitride particles and nanowires, enhances wettability and prevents particles from clogging pores by forming a three-dimensional skeletal network on the membrane surface, thereby improving adhesive mechanical properties.
It significantly improves the wettability and electrochemical performance of the separator, reduces high-temperature shrinkage, extends battery life, and enhances the overall performance of lithium-ion batteries.
Smart Images
Figure CN118256109B_ABST