In Situ Lithiophilic Layer from H/Li Exchange on Garnet Surface for the Stable Lithium-Solid Electrolyte Interface.

Garnet-type solid-state electrolytes (SSEs) show a promising application in solid-state Li batteries. Poor interfacial contact with lithium causing large interfacial impedance and dendrite penetration is a problem. Inspired by unique H/Li exchange of garnet electrolyte, we used an AgNO aqueous solution induced strategy to construct a lithiophilic layer in situ on the garnet surface without any specific apparatus.