Solid-State-Enabled Three-Stage Delithiation Pathway of Li5FeO4 for Silicon-Based All-Solid-State Batteries.
Li5FeO4 is a prelithiation additive for compensating irreversible lithium loss in lithium-ion batteries, yet its function and mechanism in all-solid-state batteries (ASSBs) remain largely unexplored. Here, we demonstrate that nanosized Li5FeO4 serves as an effective cathode prelithiation additive in halide-based ASSBs....