Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

ABSTRACT The pursuit of sustainable, efficient energy storage systems has become increasingly important amid the global energy transition and environmental concerns. Among various candidates, lithium–sulfur (Li–S) batteries stand out for their exceptional energy density, high theoretical capacity, and cost‐effectiveness. However, their practical application remains hindered by the shuttle effect of soluble lithium polysulfides (LiPSs) and sluggish redox kinetics. Introducing catalytic materials to regulate polysulfide conversion has proven to be a practical approach to overcoming these challenges. Atomically dispersed catalysts (ADCs), like single‐atom catalysts (SACs) and dual‐atom catalysts (DACs), have attracted significant attention owing to their nearly 100% atomic utilization, well‐defined coordination environments, and tunable electronic structures. By offering abundant active sites, ADCs enable strong LiPSs adsorption, lower conversion barriers, and accelerate redox kinetics, thereby enhancing sulfur utilization and cycling stability. This review systematically summarizes recent advances in the design principles, catalytic mechanisms, and synthesis strategies of ADCs for Li–S batteries, emphasizing the interplay between coordination engineering, electronic structure modulation, and catalytic activity. Finally, the challenges and future directions for developing scalable, durable, and cost‐effective ADCs are discussed to guide the rational design of next‐generation high‐performance Li–S batteries.