Synthesis and Electrochemical Properties of Solid Polymer Electrolytes Using BF(3)LiMA as Monomer

被引：2

作者：

Kim, Kyung-Chan ^{[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 | 2011年 / 14卷 / 04期

关键词：

Ionic conductivity; Lithium-ion secondary battery; Solubility; Self-doping; Solid polymer electrolyte;

D O I：

10.5229/JKES.2011.14.4.208

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Solid polymer electrolytes using BF(3)LiMA as monomer were synthesized by usual one step radical polymerization in THF solvent. The effect of BF3LiMA concentration on ionic conductivity and electrochemical stability was investigated by AC impedance measurement and linear sweep voltammetry. As a result, the highest ionic conductivity reached 7.71 x 10(-6) S cm(-1) at 25 degrees C was obtained in 12.9 wt% of BF(3)LiMA content. Further increase or decrease of BF(3)LiMA content result to decrease the ionic conductivity due to the brittle matrix properties in former case and the insufficient number of charge carrier in the latter case. Furthermore, since the counter-anion was immobilized in the self-doped solid polymer electrolytes, high electrochemical stability up to 6.0 V was observed even in 60 degrees C.

引用

页码：208 / 213

页数：6

共 23 条

[1] Single ion conductors - polyphosphazenes with sulfonimide functional groups [J].