Garnet‐Type Solid‐State Electrolyte with Tailored Lithium Compatibility for High Performance All‐Solid‐State Lithium Batteries

(NCM) (0.5 C). Li/LLZSOF-0.15/NCM pouch cells maintain over 99.5% Coulombic efficiency and 94.9% capacity retention after 120 cycles at 0.5 C. This study establishes a material design approach for developing garnet SSEs with superior interfacial compatibility, promoting the deployment of advanced all-solid-state batteries at scale.