▎ 摘　　要

NOVELTY - The composite has a manganese iron nano-particle uniformly distributed in a graphene, where the graphene includes a sheet-shaped structure. A mass percentage is 4.9-51 percent, and an iron manganese grain diameter is 5-200 nanometer. The sheet structure is single layer or multiple layer graphene. A manganese ferrite is obtained about 90 percent. 1-10 parts of graphene oxide is added and dispersed in 100-2000 parts by weight of solvent to carry out an ultrasonic treating in, A solvent includes water, ethanol, toluene and N, N'-dimethyl formyl ammonia solvent. USE - Lithium ion battery cathode material ferric acid manganese/grapheme composite. ADVANTAGE - The composite improves cycle stability and multiplying power property of the electrode material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a lithium ion battery cathode material ferric acid manganese/grapheme composite. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation illustrating a lithium ion battery cathode material ferric acid manganese/grapheme composite.