Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3088857
Keywords
boron compounds; dissolving; high-temperature effects; lithium compounds; solid-state phase transformations; superionic conductivity
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Funding
- KAKENHI [18206073]
- Tohoku University
- Grants-in-Aid for Scientific Research [18206073] Funding Source: KAKEN
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LiBH4 exhibits lithium superionic conduction accompanied by structural transition at around 390 K. Addition of LiCl to LiBH4 drastically affects both the transition and electrical conductivity: Transition from low-temperature (LT) to high-temperature (HT) phases in LiBH4 is observed at 370 K upon heating and the HT phase can be retained at 350-330 K upon cooling. Further, the conductivity in the LT phase is more than one or two orders of magnitude higher than that of pure LiBH4. These properties could be attributed to the dissolution of LiCl into LiBH4, suggested by in situ x-ray diffraction measurement.
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