Carbon Covering Method to Enhance the Storage Capacity of Materials Belonging to the Conversion and Alloy Storage Types

Driven by the development of energy storage systems (EESs), finding alternative anode materials forlithium-ion batteries to replace the general carbon materials is becoming a hot research topic in the world. Using the metal oxides, metal sulfides, metal phosphides, metal selenides belonging to the conversion type and Sn, Sb, Bi, Ge, P and Si belonging to the alloy storage type seems to be a preferred option. Nevertheless, the demerits such as volume expansion and bad conductivity of alternative materials restrict their practical application. Carbon covering is an efficacious strategy to deal with the aforementioned issues because it can restrict the volume expansion and improve the conductivity of the composite materials effectively. This present review paper comprehensively describes the suitable carbon resources and preparation methods for expanding the practical applications of materials belonging to the conversion type and ally type in fabrications of negative electrodes. Carbon covering method is an effective way to enhance the of composite materials belonging to the conversion and alloy storage types. The fabricated composite materials show the remarkable enhancement storage performance. image