Stabilizing the interface of Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 and lithium electrodes via an interlayer strategy in solid-state batteries

A polyvinylidene carbonate:BN layer was constructed between Li Al Ti (PO ) (LATP) and the lithium (Li) electrode, improving interfacial compatibility and thermal stability. The Li N-rich solid electrolyte interphase regulates Li deposition behaviors. The solid-state Li metal batteries (SSLMBs) show remarkable electrochemical performance, exhibiting endurance for 800 hours of cycling at 0.2 mA cm and a critical current density of 1.4 mA cm . These studies provide guidance for interface engineering in SSLMBs.