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This cover describes the compact layer (e.g. wall and floor tiles) can block the penetration of mobiles. This mimic Zhang and co‐workers to proposed the concept of compact inorganic layer that can block lithium polysulfides and shuttle effect in working lithium‐sulfur batteries. The compact inorganic layer renders much improved Coulombic efficiency and ensures superior cycling performance of lithium‐sulfur batteries with ultrathin lithium metal anodes. The details can be found by Yao YX et al. A Compact Inorganic Layer for Robust Anode Protection in Lithium–Sulfur Batteries with DOI: 10.1002/inf2.12046