Core–shell structured S@CuO/δ-MnO2 composites as cathodes for lithium–sulfur batteries

Novel core–shell structured S@CuO/δ-MnO 2 composites have been developed as cathodes for lithium sulfur batteries. They exhibited an excellent electrochemical performance with an initial specific capacity of 848.1 mAh g −1 at 0.1 C.