Polymer solid electrolytes based on viologen-type poly(oxytetramethylene) ionene

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• 作者：Ikeda ; Yuko ; Ikeda ; Makoto ; Ito ; Fumitaka
• 关键词：Polymer solid electrolyte ; Ionene ; Poly(oxytetramethylene) ; Ionic conductivity ; 66.30.D
• 刊名：Solid State Ionics
• 出版年：2004
• 期刊代码：96_01672738
• 类别：ch
• 出版时间：April 30, 2004
• 卷：169
• 期：1-4
• 页码：35-40
• 文件大小：286 K

摘要

Viologen-type poly(oxytetramethylene) ionene was investigated as a matrix of polymer solid electrolyte. The ionic conductivity was evaluated by doping with LiN(SO₂CF₃)₂, LiClO₄ or CF₃SO₃Li in order to elucidate the usefulness of oxytetramethylene segments and ionic units for the lithium ion conduction in the poly(oxytetramethylene) (POTM) matrix. When LiN(SO₂CF₃)₂ was doped to the concentration of [Li]/[–O–]=0.125, the ionic conductivities were 1.6×10⁻⁵ S/cm at 30 °C and 8.1×10⁻⁵ S/cm at 60 °C, which were among the highest ionic conductivities of POTM-based polymer electrolytes reported so far. This solid electrolyte was thermally stable up to ca. 200 °C.