▎ 摘　　要

NOVELTY - Preparing thin layer graphene/transition metal fluoride composite anode active material by using antibiotic bacterial residue comprises (i) carrying out hydrothermal liquefaction of aqueous solution containing antibiotic bacterial residue and alkali, carrying out solid-liquid separation to obtain bacterial residue solution, (ii) adding transition metal source into bacterial residue solution by heat treatment, after liquid phase mixing, performing dehydration treatment, carrying out heat treatment, where heat treatment comprises first section of pre-treatment and second section of heat treatment, where temperature of first section of heat treatment is 400-600 degrees C, temperature of second section of heat treatment is 700-900 degrees C and heating speed of heat treatment process is 2-10 degrees C/minute, and (iii) in situ fluorination of product obtained by heat treatment and fluorine source for fluorination, annealing treatment to obtain fluoride composite anode active material of thin graphene/M metal. USE - Method for preparing a thin layer graphene/transition metal fluoride composite anode active material that is utilized in a lithium battery. ADVANTAGE - The method enables preparing the thin layer graphene/transition metal fluoride composite anode active material with better effect of realizing double cooperation of chemical and physical structure, and improving the performance of the material in the electrochemical aspect. DETAILED DESCRIPTION - AN INDEPENDENT CLAIM is also included for lithium ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the x-ray diffraction pattern of the thin-layer graphene/ferrofluoride composite anode.