A novel inorganic solid state ion conductor for rechargeable Mg batteries

The conduction of the bivalent magnesium cation, Mg(2+), in an inorganic solid state material, Mg(BH4)(NH2), has been demonstrated. This material exhibited a high ionic conductivity of 10(-6) S cm(-1) at 150 °C, and its electrochemical window was estimated to be approximately 3 V using cyclic voltammetry.