The plastic-crystalline phase of succinonitrile as a universal matrix for solid-state ionic conductors

被引：723

作者：

Alarco, PJ ^{[1
]}

Abu-Lebdeh, Y ^{[1
]}

Abouimrane, A ^{[1
]}

Armand, M ^{[1
]}

机构：

[1] Univ Montreal, Dept Chem, Int Lab Electroact Mat, Montreal, PQ H3C 3J7, Canada

来源：

NATURE MATERIALS | 2004年 / 3卷 / 07期

关键词：

D O I：

10.1038/nmat1158

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

Solid ionic conductors are actively sought for their potential application in electrochemical devices, particularly lithium batteries. We have found high ionic conductivity for a large variety of salts dissolved in the highly polar medium based on the plastic-crystal form of succinonitrile (Nequivalent toC-CH2-CH2-Cequivalent toN). Its high diffusivity, plasticity and solvating power allowed the preparation of a large number of materials with high ionic conductivity, reaching values of 3 mS cm(-1) at 25 degreesC (two orders of magnitude above polymers). Their ease of preparation and processing allowed us to study the influence of the solute on ionic conduction within this medium. Comparisons revealed a dichotomy between plastic crystals and conventional polymer media. The usefulness of these new, easily processed electrolytes was asserted in electrochemical tests with lithium intercalation electrodes.

引用

页码：476 / 481

页数：6

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