Ultrafine cobalt nanoparticles decorated carbon submicron-cube enhance polysulfide trapping and redox kinetics in lithium-sulfur batteries

Ultrafine Co nanoparticles supported by hollow carbon submicron-cubes (Co@HCSs) are designed and prepared as an efficient sulfur host to accelerate polysulfide trapping and redox kinetics in Li-S batteries. As a result, the assembled Li-S battery with a Co@HCSs/S electrode can deliver superior electrochemical performance.