▎ 摘　　要

NOVELTY - A doped anode material comprises sodium-zirconium-manganese-iron-based Prussian blue anode USE - Doped anode material is used for preparation of sodium ion battery e.g. rechargeable battery used for large scale energy storage application. ADVANTAGE - The doped type anode material has excellent electrochemical performance and high safety, and effectively improves the multiplying power performance and cycle performance of the manganese-iron-based Prussian blue anode materials. DETAILED DESCRIPTION - A doped anode material is of formula NaxZryMn(1-y)Fe(CN)6.zH2O. x=more than 0 to 2, y=more than 0 to less than 1, and z=more than 0 to 4. INDEPENDENT CLAIMS are included for: (1) a preparation method of doped anode material, comprising dissolving sodium ferricyanide in a solvent, obtaining first solution; dissolving inorganic sodium salt, transition metal salt and chelating agent in the solvent, obtaining second solution, where the transition metal salt is zirconium salt and manganese salt; slowly dropping the second solution into the first solution, stirring to obtain precipitate; and after aging the precipitate, washing, and drying doped anode material.; and (2) a sodium ion battery.