Role of binary metal chalcogenides in extending the limits of energy storage systems: Challenges and possible solutions

Binary metal chalcogenides (BMCs) have shown better electrochemical performance compared with their mono counterparts owing to abundant phase interfaces, higher active sites, faster kinetics and electronic conductivity. Nevertheless, still undergoes adverse decline during processes mainly due poor intrinsic ionic conductivities, large volume expansions, structural agglomeration fracture. To tackle these problems, various strategies been applied engineer the BMC nanostructures obtain optimized electrode materials. However, lack of understanding response BMCs hinders large-scale application. This review not only highlights recent progress development in preparation BMC-based materials but also explains further understand relation between structure performance. It will explain engineering through nanostructuring formation hybrid structures carbonaceous three-dimensional (3D) templates. The discuss detailed working mechanism energy storage (EES) systems including supercapacitors, metal-ion batteries, metal-air alkaline batteries. In end, major challenges prospective solutions for EES devices are outlined. We believe that current provide a guideline tailoring devices.