▎ 摘　　要

NOVELTY - Anode composite material of thermal battery comprises ferrous trifluoride (FeF3)-ferrous difluoride (FeF2) micro-nano ball and graphene oxide coated on FeF3-FeF2 micro-nano ball, where mol ratio of FeF3 and FeF2 in FeF3-FeF2 micro-nano ball is 7.3 to 5.5:4.5; coating amount of graphene oxide is 0.0001 to 4 wt.%. The specific surface area of anode composite material of heat battery is 18 to 22m2/g and porosity is 0.07 to 0.12cm3/g. USE - Anode composite material of thermal battery used as anode material in thermal battery (claimed). ADVANTAGE - The anode composite material of thermal battery has high conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing anode composite material of thermal battery, which involves: (a) mixing absolute ethyl alcohol, polyethylene glycol, hydrofluoric acid, and water-soluble trivalent iron salt; (b) carrying out solvent thermal reaction to obtain FeF3 0.33H2O nano material; (c) mixing FeF3 0.33H2O nano material graphene oxide (GO), and water; freezing; and drying to obtain FeF3-0 33H2O GO nano composite material; (d) removing water from FeF3 0.33H2O GO nanometre composite material to obtain precursor; (e) calcining precursor under protection atmosphere to obtain heat battery anode composite material.