Boosting the high rate and durability of lithium–sulfur batteries using a bidirectional catalyst of a polyoxometalate-cyclodextrin supramolecular compound

PW 12 and CD in PW 12 -CD supramolecular compound synergetically anchor polysulfides. PW 12 bidirectionally catalyzes polysulfides conversion, accompanied by reversible transformation between reduction and oxidation states.