A nanoporous nitrogen-doped graphene for high performance lithium sulfur batteries

A dual modification of nanopores and N-doping for graphene is present to encapsulate sulfur for lithium sulfur batteries. The p-N-rGO/S cathode delivers a high discharge capacity of 1110 mAh g−1 at 1C rate. The improvement is ascribed to the rational combination of nanopores and N-doping.