▎ 摘　　要

NOVELTY - The preparation of anode material of sodium ion battery, involves mixing sodium source with metal oxide and ball milling to obtain precursor (I), where the preparation method further involves spraying graphene solution on precursor (I) to obtain precursor (II) and spray drying, controlling air inlet temperature of spray drying at 120-250degreesC, controlling air outlet temperature at 80-120degreesC, controlling liquid flow rate of 10-100 mL/minute, controlling gas flow rate of 0.01-1 m3/minute, controlling powder feeding speed of 25-200 g/minute, where the ratio of powder to liquid is 10:1-1:4, and the gas is air. USE - Preparation of anode material of sodium ion battery (claimed) used in electric automobile, and power battery applications. ADVANTAGE - The method enables preparation of anode material of sodium ion battery ensuring controllable thickness of the layered metal oxide, uniform coating, and has excellent circulation stability and air stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for anode material of sodium ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating the method for preparing positive electrode material of sodium ion battery. (Drawing includes non-English language text).