| 摘要 |
A method for manufacturing a cathode active material comprising: a mixing step of mixing at least Fe3(PO4)2<.>nH2O (n designates the number of hydrates and ranges from 0 to 8.) with Li3PO4; and a sintering step of sintering a mixed material obtained in the mixing step when the cathode active material represented by a composition of LixFe1-yMyPO4 (M is at least a kind of materials such as Mn, Cr, Co, Cu, Ni, V, Mo, Ti, Zn, AJ, Ga, Mg, B, and Nb, x is located within a range expressed by 0.05 ≤ x ≤ 1.2, and y is located within a range expressed by 0 ≤ y < 0.8.) is synthesized, wherein a half-value width of a maximum diffraction peak of the mixed material in an X-ray diffraction using CuK alpha ray is 1.0 DEG or smaller. <IMAGE> |
