An ultra-stable prelithiated Sn anode for sulfide-based all-solid-state Li batteries

A prelithiated Sn (LiSn) anode was developed for sulfide-based all-solid-state Li batteries (ASSLBs), demonstrating high compatibility with Li6PS5Cl sulfide electrolyte. The LiSn|NCM811 cell achieved 163 mA h g-1 capacity (0.1C) and 91% retention after 650 cycles (1C). Prelithiation compensated Li loss and mitigated volume expansion, enabling high-performance ASSLBs.