Research Progress of Single Atomic Catalysts in Lithium-sulfur Batteries

Lithium-sulfur batteries have become one of the most promising development directions of prospective high-energy-density storage devices due to their outstanding features such as high energy density and low material cost. However,the crucial problems,such as low sulfur utilization rate,short cycle life,and poor rate performance, need to be solved in lithium-sulfur batteries. Single-atom catalysts exhibit high atom utilization and structural adjus-tability at atomic scale. This review summarizes the latest research progress of single-atom catalysts in lithium-sulfur batteries from three aspects:cathode,anode,and separator/interlayer. Finally,we prospect the future development direction and the scientific and technological issues of single-atom catalysts in lithium-sulfur batteries,in order to promote their further widespread applications.