Solid polymer electrolyte material and preparation method thereof
Through the electrolyte of solid polymerization of fluorine and cyanophyls, the problem of low -ionic conductivity of polyfluorohothene ether electrolytes is solved, and high ion conductivity and excellent antioxidant performance are realized. It is suitable for lithium ionic ionic ion Battery electrolyte.
CN119340466APending Publication Date: 2025-01-21WUHAN UNIV OF TECH
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Patent Information
- Application Number
- CN202411422437.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-01-21
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Figure CN119340466A_ABST
Abstract
The invention belongs to the field of lithium ion battery materials and electrochemistry, and particularly relates to a solid polymer electrolyte material and a preparation method thereof. The polyfluoroalkyl alkene ether-based solid polymer electrolyte material provided by the invention is obtained by copolymerization of fluoroalkyl alkene ether and cyano olefin, has the ionic conductivity of 5.74 * 10 <-4 > S cm <-1 >, and is obviously superior to that of a solid polymer electrolyte formed by respective polymerization of fluoroalkyl alkene ether and cyano olefin; in addition, the solid polymer electrolyte provided by the invention has more excellent anti-oxidation stability, an electrochemical stability window reaches 5.6 V, and the solid polymer electrolyte has the potential of being adaptive to a high-voltage positive electrode material.
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