Hybrid Sodium–Air Cell with Na[FSA–C2C1im][FSA] Ionic Liquid Electrolyte

Yao Kang, Feng Liang, Katsuro Hayashi

    研究成果: Contribution to journalArticle査読

    21 被引用数 (Scopus)

    抄録

    Na[FSA–C2C1im][FSA] (C2C1im+:1-ethyl-3-methylimidazolium and FSA:bis(fluorosulfony)amide) ionic liquid was utilized as the aprotic electrolyte in hybrid sodium–air cells for the first time. The sodium–air cells were operated at relatively high temperatures up to 70 °C to prove their excellent thermal stability. A large output power density was obtained by increasing the operation temperature because of the high Na+ diffusivity and high ionic conductivity of the ionic liquid. The cells exhibited an extremely large specific capacity of 835 mAh g−1 at 50 °C; this capacity corresponds to 99% of the theoretical capacity. In addition, maximum areal output power density of 27.6 mW cm−2 was obtained at 50 °C. The Na[FSA–C2C1im][FSA] ionic liquid was proved to be a promising aprotic electrolyte to enhance the electrochemical performance of hybrid sodium–air cells.

    本文言語英語
    ページ(範囲)119-124
    ページ数6
    ジャーナルElectrochimica Acta
    218
    DOI
    出版ステータス出版済み - 11 10 2016

    All Science Journal Classification (ASJC) codes

    • 化学工学(全般)
    • 電気化学

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