MIXED SULPHATE CONTAINING LITHIUM-MANGANESE-METAL PHOSPHATE

摘要

The present invention relates to a sulphate containing mixed Lithium-manganese iron phosphate of formula LixFeyMn1-yM1-(y+z) (PO4)u(SO4)v wherein M is a metal selected from the group Co, Ni, Al, Mg, Sn, Pb, Nb,B, Cu, Cr, Mo, Ru, V, Ga, Ca, Sr, Ba, Ti, Zr, Cd and mixtures thereof and wherein 0.9 = x = 1.5, 0 = y < 1, and 0,5 = (y + z) = 1 and 0.0 < u = 1,0 and 0 < v = 0,25, a process for producing it as well as its use as cathode material in a secondary lithium-ion battery.