Intermolecular Interaction-Driven Contact Ion Pair-Dominated Solvation Structure Enabling Stable Electrode–Electrolyte Interfaces for Quasi-Solid-State Lithium Metal Batteries

, while Li//NCM811 full cells achieve excellent cycling stability for more than 1600 cycles at 4.3 V and 200 cycles at 4.5 V, respectively. This interfacial modulation paradigm provides fundamental guidance for developing high-voltage QSSLMBs (4.5 V) through precise solvation structure engineering.