Ionic conductivity of lithium chloroboracite/polyethylene glycol composites

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• 作者：Ikeda ; Yuko ; Hiraoka ; Takanori ; Ohta ; Syoko
• 关键词：Solid electrolyte ; Lithium chloroboracite ; Polyethylene glycol ; Composite ; Ionic conductivity
• 刊名：Solid State Ionics
• 出版年：2004
• 期刊代码：96_01672738
• 类别：ch
• 出版时间：November 30, 2004
• 卷：175
• 期：1-4
• 页码：261-265
• 文件大小：195 K

摘要

Novel ion-conductive inorganic/organic composites were prepared from lithium chloroboracite (Li₄B₇O₁₂Cl) and polyethylene glycol (PEG). Li₄B₇O₁₂Cl was stable under ambient conditions and was easily prepared by a sol芒芒芒gel reaction. The maximum ionic conductivity of the composites was observed when the composite was prepared in the ratio of Li₄B₇O₁₂Cl/PEG=60/40 (weight/weight), and it was 1.6芒芒10^芒芒芒6 S/cm at 30 芒芒C and 2.0芒芒10^芒芒芒5 S/cm at 80 芒芒C, respectively. Addition of LiN(SO₂CF₃)₂ to the polymer matrix of the composites increased the ionic conductivity. The Li₄B₇O₁₂Cl/PEG composites were mechanically tougher than Li₄B₇O₁₂Cl itself.