Borohydride-based Solid-state Electrolytes for Lithium Batteries

Properties of LiBH
₄
-LiCl-P
₂
S
₅
composites are studied regarding their application as solid-state electrolyte for lithium batteries. The studied materials undergo an amorphization at 60°C, accompanied with Li
⁺
conduction increase. The measured ionic conductivity for the optimized borohydride-halide-sulfide system is about ~10
^-3
S cm
^-1
at room temperature with low activation energies for ions migration suitable for all-solid-state battery applications near room temperature.