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8443269 
Journal Article 
硅/磷双效阻燃聚合物固态电解质的制备及性能 
Jia, L; Liu, X; Zhang, C 
2020 
0 
Gaofenzi Cailiao Kexue yu Gongcheng
ISSN: 1000-7555 
Sichuan University 
36 
9 
138-143 and 149 
Chinese 
A silicon/phosphorus double-effect flame retardant polymer solid electrolyte (DOPO-KH560/LiClO4) composited with lithium perchlorate (LiClO4) was prepared from modified 3-glycidoxy-propyltrimethoxysilane (KH560) by phosphorus-containing 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). The structure and properties of the polymer electrolyte were studied by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance spectroscopy (NMR), differential scanning calorimetry (DSC), thermogravimetric analysis (TG), electrochemical impedance spectroscopy (EIS), etc. The results show that the thermal decomposition temperature of DOPO-KH560/LiClO4 reaches 263.4℃. The electrolyte has excellent flame retardant properties and could form a dense carbon layer after combustion. EIS impedance results show that when the LiClO4 content is increased, the lithium ion conductivity of electrolyte increases first followed by a decrease with the highest value of 5. 50×10-6 S/cm achieved at room temperature, and reaches 2.87×10-5 S/cm at 60℃. © 2020, Editorial Board of Polymer Materials Science & Engineering. All right reserved. 
Lithium ion battery; Polymer electrolyte; Silicon/phosphate co-flame retardant