▎ 摘　　要

NOVELTY - Modified sodium manganese titanium manganese phosphate anode material comprises inner core and the carbon coating layer on the surface of the inner core. The inner core is Na3+2 delta Ti1-deltaMn1+delta(PO4)3-xXn-3x/n, where the Xn-= fluorine ion (F-), chlorine ion (Cl-), bromine ion (Br-), sulfide ion (S2-), nitrogen ion (N3-), borate ion (BO3-), tetraborate ion (B4O72-), pyrophosphate (P2O74-) or sulfate ion (SO42-), x=0-1, but does not contain 0, and delta =0-0.5. USE - Modified sodium titanium manganese phosphate anode material used in sodium ion battery (claimed). ADVANTAGE - The modified titanium manganese phosphate anode material has improved electrochemical property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the modified sodium titanium manganese phosphate anode material, which involves mixing the manganese source, titanium source, sodium source, phosphorus source, doped anion source, organic carbon source and solvent, stirring until the solvent evaporate completely to obtain the precursor, and calcining the obtained precursor to obtain the modified sodium titanium manganese phosphate anode material.