Binder‐Free, Self‐Supporting, and Highly Conductive Sulfide Electrolytes Enabling Superior Anode Stability (Adv. Mater. 18/2026)

Superior Anode Stability In their Research Article (DOI: 10.1002/adma.202517806), Shunsuke Kawaguchi, Takuhiro Miyuki, and co-workers present a binder-free, self-supporting sulfide solid electrolyte with exceptionally reduced grain boundaries, delivering high ionic conductivity together with remarkable mechanical robustness. The membrane demonstrates outstanding Li stability and realistic full-cell performance, and the cover visual highlights this architecture as a highly effective strategy to mitigate critical bottlenecks in all-solid-state batteries.