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

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307 Citations (Scopus)

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 languageEnglish
Pages (from-to)476-481
Number of pages6
JournalNature Materials
Volume3
Issue number7
DOIs
Publication statusPublished - Jul 2004

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ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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