Development of sulfide solid electrolytes prepared by crystallization of mother glasses

• Hayashi Akitoshi

  Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University

• Sakuda Atsushi

  Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University

• Tatsumisago Masahiro

  Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University

Bibliographic Information

Other Title

• ガラスの結晶化を利用した硫化物固体電解質の開発

Abstract

  Sulfide glasses with high Li⁺ concentration are suitable electrolytes for application to all-solid-state lithium batteries because of their high conductivity and ductility (processability). A metastable phase with superior Li⁺ conductivity such as Li₇P₃S₁₁ is precipitated by crystallization of its mother sulfide glass. Crystallization processes including nucleation and crystal growth are important to control for achieving highly-crystallized metastable phases. Viscosity of supercooled liquid at glass transition temperature is also a significant factor for understanding the crystallization process from glassy state. By optimizing the crystallization process for Li₇P₃S₁₁, high Li⁺ conductivity of over 10^-2 S cm^-1 at 25℃ is achieved in the glass-ceramic electrolyte.

Journal

• Journal of the Japanese Association for Crystal Growth

  Journal of the Japanese Association for Crystal Growth 46 (1), n/a-, 2019

  The Japanese Association for Crystal Growth

Details

• CRID: 1390845713064296448
• NII Article ID: 130007638784
• DOI: 10.19009/jjacg.46-1-07
• ISSN: 21878366
• ISSN: 03856275
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed