Metal–Organic Framework‐Based Sulfur‐Loaded Materials

Lithium‐sulfur batteries (LSBs) are considered promising new energy storage systems given their outstanding theoretical energy densities. Nevertheless, issues such as low electrical conductivity and severe volume expansion, along with the formation of polysulfides during cycling, restrict their practical applications. To overcome these issues, it is necessary to find suitable and effective sulfur host materials. Metal–organic frameworks (MOFs), which are porous crystalline materials in the bourgeoning developmental stages, have demonstrated enormous potential in LSBs owing to their high porosity and tunable porous structure. Herein, we provide a comprehensive overview of MOF‐based sulfur‐loaded materials and discuss the charge/discharge mechanisms, strategies of enhancing battery performance, sulfur loading methods, and applications in LSBs. An outlook on future directions, prospects, and possible obstacles for the development of these materials is also provided. Metal–organic frameworks (MOFs) provide enormous opportunities for developing advanced cathode materials of lithium‐sulfur batteries (LSBs) due to their high porosity and controllable pore structure. In this review, research achievements and progress on MOF‐based sulfur‐loaded materials are provided, including the charge/discharge mechanism, strategies for enhancing battery performance, sulfur loading method, and applications in LSBs.