Surface-supporting method of micropad deposition onto LiCoO2 epitaxial thin films to improve high C-rate performance

Sou Yasuhara, Shintaro Yasui, Takashi Teranishi, Takuya Hoshina, Takaaki Tsurumi, Mitsuru Itoh

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

High-speed rechargeable Li ion batteries are in strong demand. Two methods have been reported to improve the high-speed rechargeability of electrodes: reducing particle size and introducing a surface support. However, the effectiveness of the latter could not be directly compared among reports due particle size differences from study to study. Our previous report revealed that Li+ motion under high-speed chargedischarge conditions is accelerated around a surface-supporting material, an electrode, and an electrolyte interface. In this study, we prepared epitaxial LiCoO2 thin films with micropads of various kinds of materials and evaluated the high-speed rechargeability of each.

Original languageEnglish
Pages (from-to)415-418
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume129
Issue number7
DOIs
Publication statusPublished - Jul 1 2021

Keywords

  • Epitaxial thin film
  • High-speed chargeability
  • Lithium-ion batteries
  • Surface-supporting method

ASJC Scopus subject areas

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

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