PHOSPHATE COMPOUND, POSITIVE ELECTRODE FOR SECONDARY BATTERY AND METHOD FOR PRODUCING SECONDARY BATTERY

It is to provide a process for producing a phosphate compound capable of producing a phosphate compound excellent in the properties and the reliability, efficiently at a low cost. [0002] A first compound having a composition of MPO(wherein M is at least one atom selected from Fe, Mn , Co and Ni, the valency Nof M satisfies +2≦N≦+4, and 0.8≦x/y≦1.2) and a second compound containing at least one atom A selected from Li, Ni and K are blended in an atomic ratio of A, M and P (A:M:P) of a:b:1 (wherein 0