The lithium ionic conductivity of 2LiBH4-MgH2 composite as solid electrolyte

2LiBH4-MgH2 was synthesized by ball-milling and employed as lithium ionic conductor. It offers conductivity of 10− 2 S cm− 1 at a temperature over 373 K, and 10 times higher than that of LiBH4 at a temperature below 373 K.169