LAUSR

Lithium-sulfur battery is a new energy storage device with low cost, high energy storage density and environmental protection. It is an important tool for future battery systems. However, due to the shuttle of polysulfides, the insulation performance of sulfur and the volume change, the capacity decay and cycle instability result, which limits the future application of lithium sulfur batteries. Two-dimensional materials such as graphene, carbide, nitride, sulfide, oxide and their aggregates provide high surface area to improve sulfur utilization and cycle performance. In this manuscript, we review various two-dimensional materials through physical confinement and chemical interactions to inhibit the shuttle of polysulfides. We outline the controlled spacing of two-dimensional materials, abundant active sites and large transverse size separators and interlayers. The effects of interlayer and separator based on two-dimensional materials on lithium anode prevent polysulfide dissolution, were reviewed. Finally, the challenges and prospects of two-dimensional materials for lithium-sulfur batteries are prospected.