The Rise and Development of COF‐Based Materials for Alkali Metal Chalcogen Batteries: Current Status, Challenges, and Prospects

Abstract Alkali metal chalcogen batteries (such as lithium–sulfur/selenium, sodium–sulfur systems, abbreviated as Li‐S/Se and Na‐S) have become an important direction for the next generation of high‐energy batteries due to their ultra‐high theoretical energy density and cost advantages, but the problem of rapid capacity decay needs to be solved urgently. Covalent organic frameworks (COFs) provide a new idea for improving battery performance due to their high specific surface area and tunable structure: their porous structure can provide sufficient electrochemical reaction sites and optimize ion transport paths, thereby improving charge‐discharge efficiency and rate performance. In this paper, the research progress of COFs in alkali metal chalcogen batteries is systematically reviewed.