▎ 摘　　要

NOVELTY - Preparing high tap density lithium iron phosphate anode material comprises subjecting mixed solution of iron source, lithium source, carbon source and ion dopant to grinding treatment and spray treatment in turn to obtain precursor powder, sintering the precursor powder at high temperature to obtain the high tap density lithium iron phosphate anode material, where lithium iron phosphate anode material is spherical formed by particle aggregation, particle size of the particles is 200-300 nm and the diameter of the lithium iron phosphate is 3-10 μm. USE - The method is useful for preparing high tap density lithium iron phosphate anode material. ADVANTAGE - The high tap density lithium iron phosphate anode material: has high energy density and low temperature resistance of ternary batteries. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for lithium iron phosphate anode material is prepared by the above-mentioned method; ternary-lithium iron phosphate mixed anode material comprising a ternary material, lithium iron phosphate anode material and a binder, where mass ratio of the ternary material and lithium iron phosphate anode material is 0.5-1:1; lithium-ion battery comprising a anode, a cathode, a separator and an electrolyte made from the lithium iron phosphate anode material or ternary lithium iron phosphate mixed anode material.