Physicochemical Properties of 3-Propyl-4-propylsydnone as Solvent for Lithium Battery Electrolytes

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  • NAMBU Noritoshi
    Department of Life Science and Sustainable Chemistry (Former name: Department of Nanochemistry), Faculty of Engineering, Tokyo Polytechnic University
  • YAMAMOTO Jyunya
    Department of Life Science and Sustainable Chemistry (Former name: Department of Nanochemistry), Faculty of Engineering, Tokyo Polytechnic University
  • YAMAGUCHI Kohei
    Department of Life Science and Sustainable Chemistry (Former name: Department of Nanochemistry), Faculty of Engineering, Tokyo Polytechnic University
  • SASAKI Yukio
    Department of Life Science and Sustainable Chemistry (Former name: Department of Nanochemistry), Faculty of Engineering, Tokyo Polytechnic University

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Abstract

Sydnone is one of the mesoionic heterocyclic aromatic compounds and is represented by the resonance hybrid of different polarized ionic structures. We have newly synthesized 3-propyl-4-propylsydnone (PPSD) and investigated its physical, chemical, and electrochemical properties. The electron-pair donability for PPSD was higher than that for propylene carbonate (PC), but the electron-pair acceptability for PPSD was lower. The addition of PPSD to an ethylene carbonate (EC)-diethyl carbonate (DEC) equimolar binary mixture at the molar ratio of 1:1:0.05 was effective for an increase in cycling efficiency of a lithium anode.

Journal

  • Electrochemistry

    Electrochemistry 80 (10), 780-782, 2012

    The Electrochemical Society of Japan

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