▎ 摘　　要

NOVELTY - A sodium anode composite material comprises a composite loaded on iron fluoride (FeF3) substrate. The loaded composite comprises sodium manganate. The molar ratio of sodium manganate to FeF3 substrate, is (1 - 10): 100. USE - As sodium anode composite material. ADVANTAGE - The sodium cathode composite material which forms an interfacial heterogeneous mechanism and built-in electric field through a unique structural design, enables to improve the dynamic performance of the material. DETAILED DESCRIPTION - A sodium anode composite material comprises a composite loaded on iron fluoride (FeF3) substrate. The loaded composite comprises sodium manganate (NaxMnO2), where x = 0.5 - 1. The molar ratio of sodium manganate to FeF3 substrate, is (1 - 10): 100. An INDEPENDENT CLAIM is included for the preparation of sodium anode composite material, which involves: (1) dispersing manganese salt and graphene in solvent to form a solution (A), dissolving an organic ligand in the solvent to form solution (B), adding solution B into solution A, reacting and separating to form manganese -molecular orbital framework (Mn-MOF) material; (2) dissolving an iron salt in solvent to form iron salt solution, dissolving the fluorine source in solvent to form fluorine source solution, adding fluorine source solution into iron salt solution, heating and reacting for preset time and separating to form solid matter; (3) ball milling and mixing the solid, Mn-MOF material and sodium source, followed by sintering at high temperature.