Enhancement of the lithium-ion conductivity of LiBH4 by hydration

Akira Takano, Itaru Oikawa, Atsunori Kamegawa, Hitoshi Takamura

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Lithium borohydride (LiBH4) is a candidate material for a solid electrolyte of all-solid-state lithium secondary batteries. In this study, the hydration behavior and influences of hydration on the ionic conductivity of LiBH4 were investigated. LiBH4 was found to become hydrated without decomposing; structural water can dehydrate at 55 °C and then rehydrate at around 35 °C. Hydrated LiBH4 has a high lithium-ion conductivity of 4.89 × 10- 4 S.

Original languageEnglish
Pages (from-to)47-50
Number of pages4
JournalSolid State Ionics
Publication statusPublished - 2016 Feb 1


  • All-solid-state lithium secondary battery
  • Hydration
  • LiBH
  • Lithium-ion conductor


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