Advances of Organosulfur Materials for Rechargeable Metal Batteries.

Abstract

Battery materials have become a hotspot in the academic research. Organosulfur compounds are considered as a promising class of cathode materials for rechargeable metal batteries. They have attracted increasing attention in recent years after a long‐term stagnancy since 1980s. Recent studies have focused on the understanding of redox mechanism of linear organosulfur molecules R‐S n ‐R with defined structures. In addition, some new organosulfur compounds are developed. The reversible sulfur—sulfur (S—S) bond breakage/formation of organosulfur in batteries makes them applicable as functional materials in batteries. In this review, new organosulfur materials including molecules, polymers, and composites are introduced. In the following, organosulfur‐inorganic hybrid materials are discussed, which have shown unique redox process and enhanced battery performance. In the third part, organosulfur additives are used in Li‐S batteries, which can improve the formation of solid‐electrolyte interphase (SEI) and alter the redox pathways of sulfur cathodes. In the fourth part, organosulfur materials used in other metal batteries are introduced. Lastly, a summary and some perspectives are given. This review presents an overview of the recent advances of organosulfur materials in batteries and provides guidance for the future development of these materials.