NEW HIGH CAPACITY MATERIALS BASED ON TRANSITION METALS OF OXINITRIDES

The present invention relates to lithium salts of formula Li 2 SO 4 , Li 3 PO 4 and Li 4 SiO 4 in which a fraction of the oxygen from the polyanionic framework is replaced by nitrogen, and which are also associated with a transition metal, its use as electrode materials and a electrochemical generator comprising said lithium salts as material of the positive electrode.