Sulfur@graphene oxide core-shell particles as a rechargeable lithium-sulfur battery cathode material with high cycling stability and capacity

Sulfur@GO core-shell composites were prepared by the self-assembly of sulfur particles stabilized by a cationic surfactant and anionic graphene oxide nanosheets through electrostatic interaction. Due to the effective entrapment of polysulfide intermediates by the GO shell, the composites exhibit high cycling stability with 81% capacity maintenance over 210 cycles as the cathode for Li-S batteries.