Tin disulfide embedded on porous carbon spheres for accelerating polysulfide conversion kinetics toward lithium-sulfur batteries

SnS2@CS, as sulfur host and separator modifier, with high electrical conductivity, high specific surface area and abundant active sites can not only contribute to the fast electron transport to improve the electrochemical activity but also can efficiently adsorb and catalyse polysulfides and improve the utilization of active sulfur.