For the preparation of cathodes for Li-ion batteries suitable phosphate compounds

摘要

Crystalline, amorphous or mixed crystalline and amorphous phosphate compound of the type (M1aM2bM3cM4d) 3 (PO4) 2 .xH2O where 0≤a≤1, 0≤b≤1, 0≤c≤1, 0≤d≤1, a + b + c + d = 1 and 0 ≤ x ≤ 8, where M1, M2 and M3 are metals from the group consisting of Mn, Fe, Co and Ni, and M4 is one or more metals from the group consisting of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Be, Mg, Ca, Sr, Ba, Al, Zr, La, and processes for their preparation.