Comparison of solvent-cast and hot-pressed P(EO)20LiN(SO2CF2CF3)2 polymer electrolytes containing nanosized SiO2

被引:46
作者
Shin, JH [1 ]
Alessandrini, F [1 ]
Passerini, S [1 ]
机构
[1] IDROCOMB, Italian Agcy New Technol Energy & Environm, Hydrogen & Fuel Cell Project, I-00060 Rome, Italy
关键词
D O I
10.1149/1.1846713
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Solvent-cast and hot-pressed P(EO)(20)LiN(SO2CF2CF3)(2) (LiBETI) polymer electrolytes containing ceramic fillers such as 7 nm SiO2 and 2-4 mum gamma-LiAlO2 were prepared. The ionic conductivity and interfacial stability of these poly(ethylene oxide) electrolytes were investigated. The addition of ceramic fillers to solvent-cast and hot-pressed P(EO)(20)LiBETI polymer electrolytes did not result in any substantial improvement of ionic conductivity. However, solvent-cast SiO2-containing P(EO)(20)LiBETI polymer electrolytes showed a much higher interfacial resistance and Li stripping overvoltage than hot-pressed and filler-free solvent-cast electrolytes. (C) 2004 The Electrochemical Society. All rights reserved.
引用
收藏
页码:A283 / A288
页数:6
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