Research Progress of Organosulfur in Rechargeable Batteries

Organosulfur has been widely used in the field of energy storage in recent years due to their flexible and diverse structure,resourcefulness and environmental friendliness, showing great promise for development. During the charge and discharge, sulfur-sulfur (S-S) bonds can be reversibly broken and formed. The number of S-S bonds in the molecule determines the amount of electron transfer,and organic groups can affect the electrochemical behavior of the batteries. In this review, we introduced the research progress of organosulfur in rechargeable batteries including the application of organosulfur small molecules and polymer-based cathode materials in rechargeable lithium batteries, the influence of organosulfur electrolyte additives on the performance of lithium-sulfur (Li-S) and lithium-selenium (Li-Se) batteries,and the application of organosulfur materials in other rechargeable batteries. These organosulfur with adjustable structures show excellent cycle stability,change the redox pathways of traditional Li-S and Li-Se batteries, participate in the formation of solid electrolyte interfaces in cathode and anode, inhibit the shuttle effect of polysulfides, and prevent the growth of lithium dendrites. Finally,the challenges faced by organosulfur in the future research and development of rechargeable batteries were discussed.