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

Pierre Jean Alarco; Yaser Abu-Lebdeh; Ali Abouimrane; Michel Armand

doi:10.1038/nmat1158

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

Pierre Jean Alarco
, Yaser Abu-Lebdeh
, Ali Abouimrane
, Michel Armand

Research output: Contribution to journal › Article › peer-review

688 Scopus citations

Abstract

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 (N≡C-CH ₂-CH₂-C≡N). 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°C (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.

Original language	English
Pages (from-to)	476-481
Number of pages	6
Journal	Nature Materials
Volume	3
Issue number	7
DOIs	https://doi.org/10.1038/nmat1158
State	Published - Jul 2004
Externally published	Yes

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abstract = "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 (N≡C-CH 2-CH2-C≡N). 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°C (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.",

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AU - Armand, Michel

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AB - 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 (N≡C-CH 2-CH2-C≡N). 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°C (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.

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

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