Polysulfide Immobilization and Sulfur Conversion Kinetics Promotion via a Tetrathiafulvalene–Crown Ether COF@Graphene Layer for High‐Rate Lithium–Sulfur Batteries (Small 49/2026)

Lithium–Sulfur Batteries A tetrathiafulvalene–crown ether covalent organic framework integrated with graphene creates a chemically selective, conductive interface for lithium–sulfur batteries. Hierarchical N/O/S sites immobilize polysulfides and accelerate sulfur redox conversion, suppressing shuttle effects. The resulting cells deliver high capacity, exceptional rate capability, durable cycling, and a pouch-cell energy density of ∼674 Wh kg−1, demonstrating a practical framework-design strategy. More in Research Article e74240, Ranjit Thapa, Saikat Das, Deyan He, Yuichi Negishi, and co-workers.