論文

査読有り
2020年3月

Experimental Visualization of Interstitialcy Diffusion Pathways in Fast-Fluoride-Ion-Conducting Solid Electrolyte Ba0.6La0.4F2.4

ACS APPLIED ENERGY MATERIALS
  • Kazuhiro Mori
  • ,
  • Atsushi Mineshige
  • ,
  • Takashi Saito
  • ,
  • Maiko Sugiura
  • ,
  • Yoshihisa Ishikawa
  • ,
  • Fumika Fujisaki
  • ,
  • Kaoru Namba
  • ,
  • Takashi Kamiyama
  • ,
  • Toshiya Otomo
  • ,
  • Takeshi Abe
  • ,
  • Toshiharu Fukunaga

3
3
開始ページ
2873
終了ページ
2880
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acsaem.9b02494
出版者・発行元
AMER CHEMICAL SOC

All-solid-state fluoride shuttle batteries (FSBs) have the potential to become the next generation of rechargeable batteries. However, there are gaps in the fundamentals of developing all-solid-state FSBs. For example, the mechanism by which the F- ions travel through a working device is not yet fully understood. In this work, we use a cutting-edge neutron diffractometer and a suite of analysis programs to perform Rietveld refinements. We employ the maximum entropy method to experimentally determine the F- ion diffusion pathways in the superior solid electrolyte with a fluorite-type structure, namely, Ba0.6La0.4F2.4. We show that the excessive F- ions, located at the specific interstitial sites, migrate to the neighboring F- ion sites based on the interstitialcy diffusion mechanism at the operating temperature for all-solid-state FSBs. Understanding the diffusion mechanism of F- ions plays a key role in the development of solid electrolytes for all-solid-state FSBs, particularly for those that can operate at room temperature.

Web of Science ® 被引用回数 : 3

リンク情報
DOI
https://doi.org/10.1021/acsaem.9b02494
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000526598300089&DestApp=WOS_CPL
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85082327013&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85082327013&origin=inward

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