Visualization of the reaction distribution in a composite cathode for an all-solid-state lithium-ion battery

Mahunnop Fakkao, Kazuki Chiba, Yuta Kimura, Takashi Nakamura, Toyoki Okumura, Kiyofumi Nitta, Yasuko Terada, Yoshiharu Uchimoto, Koji Amezawa

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    In this work, we directly observed the reaction distribution formed in a composite cathode of the all-solid-state lithium-ion battery (ASSLIB) LiCoO2/Li2.2C0.8B0.2O3 Li2.2C0.8B0.2O3 PEO Li during charging by using the two-dimensional X-ray absorption spectroscopy (2D-XAS) at Co K-edge. The two-dimensional mapping of the state of charge in a composite cathode indicated that the reaction distribution was formed during charging process in the in-plane direction due to the disconnection in electron pathway at cracks. It was experimentally confirmed that the 2D-XAS technique was a useful tool for evaluating the reaction distribution in a composite cathode of an ASSLIB and investigating the influence factors for the formation of the reaction distribution.

    Original languageEnglish
    Pages (from-to)299-302
    Number of pages4
    JournalJournal of the Ceramic Society of Japan
    Volume125
    Issue number4
    DOIs
    Publication statusPublished - 2017 Apr

    Keywords

    • All-solid-state lithium-ion battery
    • Reaction distribution
    • Two-dimensional X-ray absorption spectroscopy

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

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