Li/S batteries attracted much attention owing to their high theoretical energy density,low cost,and reasonable kinetics.Nitrogen-doped graphene(NG)is a promising conductive matrix material for fabricating high-performance Li/S batteries.Here we report a simple,low-cost and scalable method to prepare an additive-free amorphous carbon modified NG as conductive network and using Li2S8 as active materials for Li/S batteries.