Core-shell Li2S@Li3PS4 nanoparticles incorporated into graphene aerogel for lithium-sulfur batteries with low potential barrier and overpotential

A novel core-shell Li2S@Li3PS4 composite with highly crystal nano-Li2S particles (ca. 55 nm) and superionic conducting Li3PS4 coating layer is introduced, and it shows low potential barrier (∼2.40 V) and overpotential as cathode for Li-S battery.245