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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: The Synthesis and Properties of a Novel Solid Polyphosphazene Electrolyte for Lithium Ion Battery
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 139-143)
Author(s): Ming-shan Yang, Department of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing, .China
Jian-wei Liu, College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, China
Jin Yu, Department of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing, .China
Xu Zhang, Department of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing, .China
Jing Wei, Department of Material Science and Engineering, Beijing Institute of Petrochemical Technology, Beijing, .China
Lin-kai Li, Guangdong Rongtai Industry Co., Ltd., Jieyang Guangdong, China
Abstract: Polydichlorophosphazene was synthesized from hexachlorocyclotriphosphazene by hightemperature decyclopolymerization, and poly (2-(2-methoxyethoxy)ethanol phosphazene)(MEEP) was synthesized by alcohol-Na+ reaction. The optimal synthesis parameters were obtained and the structure of MEEP was analyzed by FTIR, 31P -NMR, 13C-NMR and 1H-NMR. The results show that the product synthesized in this paper is MEEP and its molecular weight is up to 3400. Then polyphosphazene electrolyte was prepared by mixing MEEP with LiCF3SO3 and its heat stability and ionic conductivity were determined. The results indicate that the electrolyte prepared in this paper has high thermo-decomposed temperature, and its room-temperature conductivity is up to 1.187×10-4 S/cm.
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