用于高性能锂硫电池隔膜的a-MEGO@g-C3N4复合材料

由于具有高能量密度和环境友好性，锂硫电池成为备受关注的下一代电化学储能系统，然而硫和硫化锂的低电导率和多硫化锂的穿梭效应严重影响锂硫电池的实际比容量和循环性能.本研究制备出了具有高
Abstract：Lithium-sulfur batteries are widely seen as a promising next-generation energy storage system owing to their ultrahigh energy density and environmental benignity, yet the low electrical conductivity of sulfur and the shuttle effect of dissolved polysulfides result in poor cycling performance. An a-MEGO@g-C3N4composite coated on polypropylene separator with high nitrogen content (atomic percent 20.08%) and specific surface area (1000 m2·g-1) was developed to inhibit polysulfide shuttling. The prepared lithium-sulfur battery with the a-MEGO@g-C3N4 coated separator delivered a specific capacity