Iron manganese titanium phosphate and preparation method thereof

The invention discloses iron manganese titanium phosphate. The chemical formula of iron manganese titanium phosphate is Fe(1-x-y)TixMnyPO4, wherein x is 0.05-0.01 and y is 0.005-0.001. The method comprises the following steps: (1), dissolving an iron source, a titanium source, a manganese source and a phosphorus source to obtain a mixed solution; (2), heating the mixed solution to 30-50 DEG C, adding hydrogen peroxide, then heating the mixture to 90 DEG C or higher, adding phosphoric acid, performing a thermal reaction for 1-3 hours after the reaction system turns white, adjusting pH of the reaction system to 4-5, and continuing the thermal reaction for 0.5-1.5 hours; (3), washing, drying and calcining the product obtained by the reaction in the step (2) to obtain iron manganese titanium phosphate. Lithium iron manganese titanium phosphate synthesized from iron manganese titanium phosphate as a precursor has the advantages of high electronic conductivity, large electrochemical specificcapacity and the like, a