▎ 摘　　要

NOVELTY - The method involves mixing nanometer ferric oxide powder and acrylonitrile oligomer according to a certain mass ratio for obtaining precursor to protect atmospheric air in a uniform manner. The mixer is continuously heated at 500 degrees centigrade and added with iron compound composite powder such that atmospheric air is surrounded with nitrogen or argon gas. Nano iron oxide powder is provided with ferric oxide (Fe2O3) or alpha-dog. USE - Graphene-like coated doped iron compound cathode material preparation method for a lithium ion battery. ADVANTAGE - The method enables increasing capacity and ensuring high-ratio charging and discharging function of a lithium ion battery at low cost. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation of a graphene-like coated doped iron compound cathode material preparation method. '(Drawing includes non-English language text)'