Operando electrochemical pressiometry probing interfacial evolution of electrodeposited thin lithium metal anodes for all-solid-state batteries

•Thin Li metal anodes (∼ 10 μm) were fabricated by scalable electrodeposition.•In/LixIn protective layer was coated on Li metal surface via electroless plating.•The Li-solid electrolyte side reactions and penetrating Li growth were alleviated.•Interfacial evolution was probed via operando electrochemical pressiometry.