Synergistic effect of adsorption and electrocatalysis of CoO/NiO heterostructure nanosheet assembled nanocages for high-performance lithium–sulfur batteries

CoO/NiO nanosheet assembled nanocages (CoO/NiO@C-NC) were prepared to improve the electrochemical performance of Li–S batteries. CoO/NiO@C-NC shows a synergistic adsorption–electrocatalysis effect to accelerate the redox of lithium polysulfides.