Multielectron redox compounds for organic cathode quasi-solid state lithium battery

Yuki Hanyu, Toyonari Sugimoto, Yoshiyuki Ganbe, Asuna Masuda, Itaru Honma

    研究成果: Article査読

    54 被引用数 (Scopus)

    抄録

    Two multielectron redox organic compounds, hexaazatrinaphthylene (3Q) and hexaazatriphenylenehexacarbonitrile (6CN) were evaluated as high energy density cathode materials of quasi-solid cells. The cathode dissolution, which has been an issue for organic cathodes, was suppressed and the cell cyclability drastically improved. 6CN, which exhibited low capacity and cyclability in conventional liquid electrolyte, was measured to possess the specific capacity of ̃420 mAh/g. The energy density of the cathode body was ̃720 Wh/kg. It was also discovered that implementation of depth-of-discharge management further improved cyclability. This study is a demonstrative case that cathode compounds deemed unusable in liquid electrolyte may turn usable in solid-state lithium cells.

    本文言語English
    ページ(範囲)A6-A9
    ジャーナルJournal of the Electrochemical Society
    161
    1
    DOI
    出版ステータスPublished - 2014

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • 再生可能エネルギー、持続可能性、環境
    • 表面、皮膜および薄膜
    • 電気化学
    • 材料化学

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