Discharge-charge properties of Li/LiCoO2 cell using room temperature ionic liquids (RTILs) based on quaternary ammonium cation - Effect of the structure

Hikari Sakaebe, Hajime Matsumoto, Kuniaki Tatsumi

Research output: Contribution to journalArticlepeer-review

172 Citations (Scopus)

Abstract

The properties of the Li/LiCoO2 cell containing several RTILs with three different anions were investigated. Introducing the asymmetric nature to anionic species using amide improved the viscosity and conductivity of the RTIL, however, the rate properties of the cell was not enhanced very much. Declined cathodic stability seems to be responsible for the result. In the case of the stable system consisting of quaternary ammonium cation and imide anion, both of cycling properties and Coulombic efficiency during the cycling were satisfactory and the viscosity dominated the rate properties of the cell. The performance of the Li/LiCoO2 cell in this study was almost consistent with the stability of Li-electrolyte interface evaluated by ac impedance measurement.

Original languageEnglish
Pages (from-to)693-697
Number of pages5
JournalJournal of Power Sources
Volume146
Issue number1-2
DOIs
Publication statusPublished - Aug 26 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

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