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Comparison of Solvent-Cast and Hot-Pressed P(EO)[sub 20]LiN(SO[sub 2]CF[sub 2]CF[sub 3])[sub 2] Polymer Electrolytes Containing Nanosized SiO[sub 2]

2005; Institute of Physics; Volume: 152; Issue: 2 Linguagem: Inglês

10.1149/1.1846713

1945-7111

Joon‐Ho Shin, F. Alessandrini, Stefano Passerini,

Advanced Battery Technologies Research

Solvent-cast and hot-pressed (LiBETI) polymer electrolytes containing ceramic fillers such as 7 nm and 2-4 μm 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 polymer electrolytes did not result in any substantial improvement of ionic conductivity. However, solvent-cast -containing polymer electrolytes showed a much higher interfacial resistance and Li stripping overvoltage than hot-pressed and filler-free solvent-cast electrolytes. © 2004 The Electrochemical Society. All rights reserved.