Synthesis and Physicochemical Properties of Branched Solid Polymer Electrolytes Containing Ethylene Carbonate Group

被引：1

作者：

Kim, Doo-Hwan ^{[1
]}

Ryu, Sang-Woog ^{[1
]}

机构：

[1] Chungbuk Natl Univ, Dept Chem Engn, Cheongju 361763, Chungbuk, South Korea

来源：

JOURNAL OF THE KOREAN ELECTROCHEMICAL SOCIETY | 2015年 / 18卷 / 04期

关键词：

Ethylene carbonate; Polymer electrolyte; Branch; Ionic conductivity; Electrochemical stability;

D O I：

10.5229/JKES.2015.18.4.150

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study polymer electrolytes containing ethylene carbonate group which have a high dielectric constant and poly(ethylene glycol) as branches were prepared by the Williamson reaction between poly(ethylene glycol) methyl ether and block copolymers composed of glycerol-1,2-carbonate and 4-chloromethyl styrene. Interestingly, the highest ionic conductivity of 1.75 x 10(-5) S cm(-1) was observed from the polymer electrolyte having 7 mol% of ethylene carbonate and the [ EO]:[ Li] ratio of 32: 1. Moreover, it was found that the electrochemical stability of polymer electrolyte was achieved up to 5.5 V because of the presence of ethylene carbonate.

引用

页码：150 / 155

页数：6

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