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Article Dans Une Revue ACS Applied Energy Materials Année : 2020

Mg 3 (BH 4 ) 4 (NH 2 ) 2 as Inorganic Solid Electrolyte with High Mg 2+ Ionic Conductivity

Résumé

Mg 3 (BH 4) 4 (NH 2) 2 compound was synthesized through the investigation of the Mg(BH 4) 2-Mg(NH 2) 2 phase diagram; its crystal structure was solved in a tetragonal unit cell with the space group I4̅. Interestingly, Mg 3 (BH 4) 4 (NH 2) 2 has a high thermal stability with a decomposition temperature above 190°C and exhibits a high Mg 2+ 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 Mg 3 (BH 4) 4 (NH 2) 2 as solid electrolyte. Thus, Mg 3 (BH 4) 4 (NH 2) 2 is a compound that could help to develop rechargeable Mg-ion solid-state batteries.
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Dates et versions

hal-02924388 , version 1 (01-12-2020)

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Ronan Le Ruyet, Benoit Fleutot, Romain Berthelot, Yasmine Benabed, Geoffroy Hautier, et al.. Mg 3 (BH 4 ) 4 (NH 2 ) 2 as Inorganic Solid Electrolyte with High Mg 2+ Ionic Conductivity. ACS Applied Energy Materials, 2020, 3 (7), pp.6093-6097. ⟨10.1021/acsaem.0c00980⟩. ⟨hal-02924388⟩
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