Li-In-S composite foil with built-in electric fields to stabilize Li/Li 6 PS 5 Cl interface for long-life all-solid-state batteries

Nature Communications, Published online: 05 June 2026; doi:10.1038/s41467-026-74049-1 Sulfide-based all-solid-state lithium batteries severely suffer from sulfide electrolyte/Li interfacial instability. Here, authors propose an In and S doping into Li metal to stabilize the Li/Li6PS5Cl interface by constructing built-in electric fields, thereby enabling long-life all-solid-state lithium batteries.