Abstract:
As a energy storage system of the new generation,the Li-S battery is gaining increasing interest due to its high capacity and energy density(2 600 m Ah/g),cheap anode material and friendly environment,etc. However,such problems as the insulation of sulfur,the volume expansion of sulfur in the process of charging and discharging,complex electro-chemical reaction between lithium and sulfur and the dissolution of sulfides slow down the commercialization of the sulfur lithium secondary battery. In this paper,from the aspects of inorganic materials,conductive polymers,nanomaterials and nano-derivatives and ternary compounds,the recent progress Li-S battery technology was reviewed,and then the future development of this kind of material was prospected.