Patent ID: 8586242

Claim:
Ferrous (II) phosphate powders for manufacturing a cathode material of a Li-ion battery, represented by the following formula (I): Fe (3-x) M x (PO 4 ) 2 .y H 2 O (I) wherein M comprises at least one metal selected from the group consisting of Mn, Cr, Co, Cu, Ni, V, Mo, Ti, Zn, Zr, Tc, Ru, Rh, Pd, Ag, Cd, Pt, Au, Al, Ga, In, Be, Mg, Ca, Sr, B, and Nb, 0≦x≦1.5, y is an integer of 0 to 8, the ferrous (II) phosphate powders are composed of plural flake powders, the length of each of the flake powders is 0.2-10 μm, and a ratio of the length and the thickness of each of the flake powder is in a range from 14 to 500.