Plastic crystalline phases of crown ether:salt complexes and their utilization in lithium-metal batteries

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

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We have shown that crown ether complexes with the lithium salt, lithium bis-(trifluoromethanesulphonyl) imide (LiTFSI), are plastic crystals as evidenced by DSC and their mechanical properties. The conductivity of the complexes was measured and found to vary as a function of crown ether:salt molar ratio. Our study of the (18-Crown-6)-LiTFSI (1/1) solid complex showed that it has a high conductivity reaching ∼10-4 S cm-1 at 50 °C and an electrochemical stability of over 4 V enabling its use in a lithium-metal battery. A lithium battery with 1:1 (18-Crown-6)-LiTFSI as electrolyte was assembled, tested, and found to exhibit reversible Li+ transport. Crown

Original languageEnglish
Pages (from-to)1193-1196
Number of pages4
JournalJournal of Power Sources
Volume174
Issue number2
DOIs
Publication statusPublished - 6 Dec 2007

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Keywords

  • Crown ether
  • Electrolyte
  • Lithium battery
  • Plastic crystal

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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