▎ 摘　　要

NOVELTY - The manufacturing process of a graphene-containing negative electrode material involves: stirring and dispersing graphene, a dispersing agent and a solvent to prepare graphene slurry, adding the graphene slurry into asphalt micro powder and a precursor material, and uniformly mixing to obtain paste slurry; and then granulating the paste slurry, and sequentially carrying out crosslinking reaction, carbonization and graphitization on the granulated mixed particles to obtain the negative electrode material. USE - Method for manufacturing a graphene-containing negative electrode material for use in lithium-ion battery, which is used in portable electronic device, and large-scale high-power system, such as a plug-in hybrid electric vehicle or a plug-in electric vehicle. ADVANTAGE - In the traditional method, the physical mixing of graphite and graphene is prone to delamination when making negative electrode slurry. This leads to the phenomenon that graphene directly adheres to the surface of graphite. The granulation method is used to make graphene and graphite by the precursor. The material coating reduces the specific surface area of the negative electrode material, reduces the consumption of lithium ions in the first effect of the battery application, and reduces the consumption of lithium ions. The irreversible capacity of the first charge-discharge effect is reduced, and the performance is improved. The precursor and pitch micropowder and graphite are used. The slurry of alkene undergoes a cross-linking reaction, followed by carbonization and graphitization, which makes the surface pore structure of the negative electrode material more abundant and stable, thus the energy density of the negative electrode material is increased. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the graphene-containing negative electrode material. DESCRIPTION OF DRAWING(S) - The drawing shows a scanning electron microscope image of negative electrode material containing graphene.