Lithium superionic conduction in lithium borohydride accompanied by structural transition

Motoaki Matsuo, Yuko Nakamori, Shin Ichi Orimo, Hideki Maekawa, Hitoshi Takamura

Research output: Contribution to journalArticlepeer-review

289 Citations (Scopus)

Abstract

The electrical conductivity of lithium borohydride (LiB H4) measured by the ac complex impedance method jumped by three orders of magnitude due to structural transition from orthorhombic to hexagonal at approximately 390 K. The hexagonal phase exhibited a high electrical conductivity of the order of 10-3 S cm-1. Furthermore, the conductivity calculated from the Nernst-Einstein equation using the correlation time obtained from Li7 nuclear magnetic resonance was in good agreement with the measured electrical conductivity. It was concluded that the electrical conductivity in the hexagonal phase is due to the Li superionic conduction.

Original languageEnglish
Article number224103
JournalApplied Physics Letters
Volume91
Issue number22
DOIs
Publication statusPublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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