The compatibility of propylene carbonate-based electrolyte solutions with graphite negative electrodes in lithium-ion batteries

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  • Fukutsuka Tomokazu
    Graduate School of Engineering, Kyoto University, Japan Hall of Global Environmental Research, Kyoto University, Japan

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Other Title
  • 黒鉛負極へ適合可能な炭酸プロピレン系電解液の研究
  • コクエン フキョク エ テキゴウ カノウ ナ タンサン プロピレンケイ デンカイエキ ノ ケンキュウ

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Description

<p>Lithium-ion batteries (LIBs) are widely used in mobile devices and electric vehicles (EVs). One of the problems of LIBs for EV-use is inferior low-temperature performance. At low temperatures, the performance of a conventional ethylene carbonate (EC)-based electrolyte solution is degraded due to its high melting point. However, propylene carbonate (PC) that is a candidate with a low melting point cannot be used with a graphite negative electrode. In order to adapt the PC-based electrolyte solution to the graphite negative electrode, the solvation structure of lithium ions was controlled by the addition of a Lewis acid and Lewis base. In this review, the design concept of the PC-based electrolyte solution and the control of the solvation structure of lithium ions are introduced.</p>

Journal

  • TANSO

    TANSO 2018 (283), 108-117, 2018-07-15

    THE CARBON SOCIETY OF JAPAN

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