KATHODEN AUS UNLOESLICHEN GEMISCHTEN SCHWERMETALLPOLYSULFIDEN

摘要

Mixed heavy metal polysulfides which are insoluble in non-aqueous electrolytes and having the formula M(1)w<+n>M(2)x<+m)<Sy)z<-2> (wherein M(1) and M(2) are different heavy metal atoms, n and m are integers representing the valence states of M(1) and M(2) respectively, w and x are integers representing the stoichiometry of M(1) and M(2) respectively in the polysulfide, S is sulfur, nw + mx = 2z and y is greater than 4.5) are utilized as very high energy density cathodes in non-aqueous electrochemical cells.