Enhanced interface stability of ammine magnesium borohydride by in situ decoration of MgBr2·2NH3 nanoparticles

摘要

A novel Mg(BH4)2·1.9NH3-MgBr2·2NH3 composite was demonstrated as a solid-state Mg2+ electrolyte. The in situ decoration of MgBr2·2NH3 nanoparticles with an average size of 3.7 nm on the surface of Mg(BH4)2·1.9NH3 improves the Mg2+ conductivity to 2.1 × 10−4 S cm−1 at 50 °C and offers long-term stability towards the Mg metal anode.