The preparation of quaternary ammonium-based ionic liquid containing a cyano group and its properties in a lithium battery electrolyte

Minato Egashira, Shigeto Okada, Jun Ichi Yamaki, Diego Alejandro Dri, Francesco Bonadies, Bruno Scrosati

Research output: Contribution to journalArticle

98 Citations (Scopus)

Abstract

A room temperature ionic liquid consisting of N,N,N,N,-cyanomethyl trimethyl ammonium (CTMA) cation and bis(trifluoromethane sulfone)imide (TFSI) anion was newly synthesized, and its electrochemical properties were investigated. This ionic liquid has a melting point of 35°C and an order of conductivity of 10-4 S cm-1. Lithium deposition/ dissolution tests in 0.2 mol dm-3 LiTFSI/CTMATFSI electrolytes showed an improved cycle behavior compared with that of a Li electrolyte based on a tetraalkylammonium ionic liquid without a cyano group. It is suggested that such an improvement may be associated with the formation of a protective film on the lithium surface. Introducing a proper functional group is suggested to be effective to improve the interfacial properties of ionic liquid.

Original languageEnglish
Pages (from-to)240-244
Number of pages5
JournalJournal of Power Sources
Volume138
Issue number1-2
DOIs
Publication statusPublished - Nov 15 2004

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Ionic Liquids
Lithium batteries
lithium batteries
Ammonium Compounds
Ionic liquids
Electrolytes
electrolytes
preparation
liquids
Lithium
lithium
Imides
Sulfones
sulfones
imides
Protective coatings
Electrochemical properties
Functional groups
melting points
Anions

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

Cite this

The preparation of quaternary ammonium-based ionic liquid containing a cyano group and its properties in a lithium battery electrolyte. / Egashira, Minato; Okada, Shigeto; Yamaki, Jun Ichi; Dri, Diego Alejandro; Bonadies, Francesco; Scrosati, Bruno.

In: Journal of Power Sources, Vol. 138, No. 1-2, 15.11.2004, p. 240-244.

Research output: Contribution to journalArticle

Egashira, Minato ; Okada, Shigeto ; Yamaki, Jun Ichi ; Dri, Diego Alejandro ; Bonadies, Francesco ; Scrosati, Bruno. / The preparation of quaternary ammonium-based ionic liquid containing a cyano group and its properties in a lithium battery electrolyte. In: Journal of Power Sources. 2004 ; Vol. 138, No. 1-2. pp. 240-244.
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AU - Bonadies, Francesco

AU - Scrosati, Bruno

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