A single-phased ringed pyrazolium imide and its potential application for plastic crystal-lithium batteries

Y. Abu-Lebdeh, P. J. Alarco, A. Abouimrane, L. Ionescu-Vasii, A. Hammami, M. Armand

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A new member of the plastic crystal, pyrazolium imide family, N,N'-pentamethylene pyrazolium bis-(trifluoromethanesulfonyl)imide Pyr7, was prepared. It showed a single, plastic crystalline phase that extends from 47°C to its melting at 75°C. The high conductivity of its neat (1.8×10-4 S.cm-1 at 71/2= 61°C) and 10 molar% LiTFSI-doped compound (7.9×10-4 at T1/2= 55.5°C) along with the wide electrochemical window of Pyr7 ( ∼4.3 V) encouraged us to employ the doped-compound in a lithium-ion battery and good performance was obtained. For the first time, we introduced the σT 1/2 term, which should provide a good tool for the comparison of conductivity values for different compounds at the middle of their plastic crystal range.

Original languageEnglish
Pages (from-to)197-201
Number of pages5
JournalJournal of New Materials for Electrochemical Systems
Volume8
Issue number3
Publication statusPublished - 1 Jul 2005

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Keywords

  • Lithium batteries
  • Organic plastic crystal electrolyte
  • Plastic crystals
  • Pyrazolium imides
  • Solid-state conductors

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrochemistry

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