The stable cycling of a high-capacity Bi anode enabled by an in situ-generated Li3PO4 transition layer in a sulfide-based all-solid-state battery

Abstract

The most processable solid electrolyte, Li₂S–P₂S₅ (LPS), exhibits the drawback of a limited potential window, which leads to the deterioration of the interface stability and limits the application of high-capacity anodes, such as those based on Li, Si, and Bi. Here, the in situ formation of a designed artificial solid electrolyte interface provides an effective way to apply low-voltage anodes in solid-state batteries.