DataVXACS Applied Energy MaterialsPaper
journal article·2020-07-27Open access

Mg3(BH4)4(NH2)2 as Inorganic Solid Electrolyte with High Mg2+ Ionic Conductivity

Ronan Le Ruyet, Benoît Fleutot, Romain Berthelot, Yasmine Benabed, Geoffroy Hautier, Yaroslav Filinchuk, Raphaël Janot

ACS Applied Energy Materials· Volume 3· Issue 7
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Source abstract

Abstract

Mg3(BH4)4(NH2)2 compound was synthesized through the investigation of the Mg(BH4)2-Mg(NH2)2 phase diagram; its crystal structure was solved in a tetragonal unit cell with the space group I4̅. Interestingly, Mg3(BH4)4(NH2)2 has a high thermal stability with a decomposition temperature above 190 °C and exhibits a high Mg2+ ionic conductivity of 4.1 × 10–5 S·cm–1 at 100 °C with a low activation energy (0.84 eV). The reversible Mg deposition/stripping was demonstrated at 100 °C when using Mg3(BH4)4(NH2)2 as solid electrolyte. Thus, Mg3(BH4)4(NH2)2 is a compound that could help to develop rechargeable Mg-ion solid-state batteries.
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Research context

Energy storageMaterials processing

OpenAlex topics: Hydrogen Storage and Materials · Advancements in Battery Materials · Advanced Battery Materials and Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratoire de Réactivité et Chimie des Solides (LRCS), Université de Picardie Jules Verne, UMR 7314 CNRS, 33 Rue Saint Leu, Amiens 80039, France

Réseau sur le Stockage Electrochimique de l’Energie (RS2E), FR 3459 CNRS, 33 Rue Saint Leu, Amiens 80039, France

ICGM, Université de Montpellier, UMR 5253 CNRS, ENSCM, Montpellier 34095, France

Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve 1348, Belgium

Department of Chemistry, Université de Montréal, Montreal H3T1J4, Canada

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