4.7 Article

Magnesium Borohydride Ammonia Borane as a Magnesium Ionic Conductor

Journal

ACS APPLIED ENERGY MATERIALS
Volume 3, Issue 4, Pages 3174-3179

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acsaem.0c00113

Keywords

magnesium borohydride ammonia borane; magnesium ionic conductivity; complex hydride; solid electrolyte; all-solid-state Mg-ion battery

Funding

  1. JSPS KAKENHI [19K15305, 19K15666, JP18H05513, 19H05060]
  2. Core Research Clusters for Materials Science
  3. Advanced Target Project of WPI-AIMR, from Tohoku University
  4. Grants-in-Aid for Scientific Research [19K15666, 19K15305, 19H05060] Funding Source: KAKEN

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Magnesium borohydride ammonia borane, Mg-(BH4)(2) (NH3BH3)(2), was electrochemically investigated. Impedance measurements of the mechanochemically synthesized Mg-(BH4)(2)(NH3BH3)(2) exhibited an ionic conductivity of 1.3 X 10(-5) S cm(-1) at 30 degrees C. Electrochemical cells fabricated with Mg-(BH4)(2)(NH3BH3)(2) as the solid electrolyte demonstrated reversible Mg migration through the material, indicating its potential for use as a Mg ionic conductor in all-solid-state Mg-ion batteries.

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