Co-Co9S8-NC particles anchored on 3D hyperfine carbon nanofiber networks with a hierarchical structure as a catalyst promoting polysulfide conversion for lithium–sulfur batteries

The shuttle effect of lithium polysulfides has been an important factor limiting the practical application of lithium–sulfur batteries. CNF/Co-Co 9 S 8 -NC composites with a 3D hierarchical structure were prepared as the polysulfide electrocatalyst.