Sunyoung Lee, Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing - original draft, Writing - review & editing, A full cell paired with a commercial-level cathode exhibits exceptionally long durability (>3000 cycles) and coulombic efficiency (99.96%) at a high current density (2 C ~1.0 mA cm-2), which records the highest performance among all-solid-state lithium metal batteries reported to date. It subsequently results in a homogeneous lithium plating/stripping, thereby aiding in achieving one of the highest critical current densities (~3.1 mA cm-2) at 60☌ in a symmetric cell. Here, we demonstrate that a rational layer-by-layer strategy using a lithiophilic and electron-blocking multilayer can substantially enhance the performance/stability of the system by effectively blocking the electron leakage and maintaining low electronic conductivity even at high temperature (60☌) or under high electric field (3 V) while sustaining low interfacial resistance (13.4 ohm cm2). All-solid-state batteries are a potential game changer in the energy storage market however, their practical employment has been hampered by premature short circuits caused by the lithium dendritic growth through the solid electrolyte.
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