A Morphologically Stable Li/Electrolyte Interface for All‐Solid‐State Batteries Enabled by 3D‐Micropatterned Garnet

Morphological degradation at the Li/solid‐state electrolyte (SSE) interface is a prevalent issue causing performance fading of all‐solid‐state batteries (ASSBs). To maintain the interfacial integrity, most ASSBs are operated under low current density with considerable stack pressure, which significantly limits their widespread usage. Herein, a novel 3D‐micropatterned SSE (3D‐SSE) that can stabilize the morphology of the Li/SSE interface even...