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
收藏
页码：150 / 155
页数：6
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