Thin Film All-solid-state Battery Using Li<sub>2</sub>MnO<sub>3</sub> Epitaxial Film Electrode

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Author(s)

    • Hikima Kazuhiro
    • Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology
    • Suzuki Kota
    • Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology|All-Solid-State Battery Unit, Institute of Innovative Research, Tokyo Institute of Technology
    • Hirayama Masaaki
    • Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology|All-Solid-State Battery Unit, Institute of Innovative Research, Tokyo Institute of Technology
    • Kanno Ryoji
    • Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology|All-Solid-State Battery Unit, Institute of Innovative Research, Tokyo Institute of Technology

Abstract

<p>An epitaxial Li<sub>2</sub>MnO<sub>3</sub>(001) thin film electrode with layered rock-salt structure was tested in an all-solid-state battery configuration for the first time. Using amorphous Li<sub>3</sub>PO<sub>4</sub> solid electrolyte, good discharge capacity after the 5th cycle, excellent reversibility for 100 cycles, and high rate capability at room temperature were observed. The same electrode showed significant capacity fading when cycled in liquid electrolyte. The all-solid configuration could prevent electrolyte decomposition, Mn dissolution, and oxygen extraction from Li<sub>2</sub>MnO<sub>3</sub> electrode.</p>

Journal

  • Chemistry Letters

    Chemistry Letters 48(3), 192-195, 2019

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130007607637
  • Text Lang
    ENG
  • ISSN
    0366-7022
  • Data Source
    J-STAGE 
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