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Li+ ion conductor based on NaBr doped with LiBH4

Published online by Cambridge University Press:  27 November 2018

Reona Miyazaki ,
Masatoshi Shomura ,
Reina Miyagawa  and
Takehiko Hihara
Reona Miyazaki*
Affiliation:
Department of Physical Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
Masatoshi Shomura
Affiliation:
Department of Physical Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
Reina Miyagawa
Affiliation:
Department of Physical Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
Takehiko Hihara
Affiliation:
Department of Physical Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan
*
Address all correspondence to Reona Miyazaki at miyazaki.reona@nitech.ac.jp
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Abstract

In this work, the guest Li+ conduction properties in NaBr–LiBH4 system were investigated. It was suggested that the guest Li+ ions occupy the Na+ sites and BH4− ions substitute the Br− ions in NaBr. The dominant Li+ conduction in NaBr–LiBH4 system was demonstrated by the combination of electrochemical measurements and time-of-flight secondary ion mass spectrometry. The guest Li+ ion conductivity of 15NaBr·LiBH4 was measured to be 1 × 10−7 S/cm at 313 K. The present results indicate that the guest Li+ conductors are not restricted to the previous reported iodides (NaI, KI), but other Li-free compounds have the possibility to become the candidates for the guest Li+ ion conductors.

Type
Research Letters
Information
MRS Communications , Volume 9 , Issue 1 , March 2019 , pp. 304 - 309
Copyright
Copyright © Materials Research Society 2018 

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