Nature Communications (Jan 2021)

Hydride-based antiperovskites with soft anionic sublattices as fast alkali ionic conductors

  • Shenghan Gao,
  • Thibault Broux,
  • Susumu Fujii,
  • Cédric Tassel,
  • Kentaro Yamamoto,
  • Yao Xiao,
  • Itaru Oikawa,
  • Hitoshi Takamura,
  • Hiroki Ubukata,
  • Yuki Watanabe,
  • Kotaro Fujii,
  • Masatomo Yashima,
  • Akihide Kuwabara,
  • Yoshiharu Uchimoto,
  • Hiroshi Kageyama

DOI
https://doi.org/10.1038/s41467-020-20370-2
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 10

Abstract

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Oxide-based lithium/sodium-rich antiperovskites are regarded as promising solid electrolytes. Here, authors report a series of antiperovskites with a soft lattice containing hydride (H–) and chalcogenide (S2–, Se2–, Te2–) anions, enabling the fast Li+ /Na+ transport assisted by rotational phonon modes.