▎ 摘　　要

NOVELTY - A graphene/carbon/ferroferric oxide nanocomposite material comprises graphene with sheet-like structure skeleton with nano thickness and micro width, carbon material, and ferroferric oxide nanoparticles. The sheet structure skeleton is connected with carbon material to form graphene/carbon matrix with porous network structure, and distributed and embedded with ferroferric oxide nanoparticles. USE - Graphene/carbon/ferroferric oxide nanocomposite material. ADVANTAGE - The product has stable structure, good conductivity, and as high ion transmission efficiency. The method is simple and suitable for industrialization. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the: (1) preparation of graphene/carbon/ferroferric oxide nanocomposite material comprising preparing mixed solution containing graphene oxide, soluble carbon source, soluble iron-containing compound and soluble salt template, heating and stirring, volatizing solvent, obtaining composite material precursor, performing heat treatment under inert gas atmosphere, converting graphene oxide into graphene, carbon source material into carbon material matrix, and iron-containing compound into ferroferric oxide nanoparticle, washing with water, filtering to remove soluble salt template, and drying; and (2) application of graphene/carbon/ferroferric oxide nanocomposite material comprising lithium ion battery anode.