Investigating the Protective Function of the β-Li3N Interlayer for Halide-Based All-Solid-State Li Metal Batteries.
Halide solid electrolytes are promising candidates for all-solid-state batteries owing to their high ionic conductivity at room temperature and excellent oxidative stability, yet they are chemically unstable against Li metal, forming a mixed ionic/electronic conductor that necessitates a protective interlayer. Here, we...