▎ 摘　　要

NOVELTY - Silicon carbon anode material includes an inner core and a carbon coating layer, the carbon coating layer is coated on the surface of the inner core, and the inner core is dispersed with carbon-coated nano-silicon. The carbon-coated nano-silicon includes secondary particles formed of nano-silicon particles by binding carbon. USE - Silicon carbon anode material ADVANTAGE - The silicon carbon anode material effectively alleviates the expansion problem in the application process of silicon carbon, and solves the interface bonding force between silicon and graphite and other carbon materials, and effectively solving the problems existing in the application of silicon carbon. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of silicon carbon negative electrode material, which involves dispersing nano-silicon and organic binder (I) in an organic solvent to form a slurry, drying the slurry to prepare dry powder, mixing the dry powder with the conductive carbonaceous particles to obtain a mixture, adding organic binder (II) to the mixture, and preparing the coated particles by granulation, sintering and carbonizing the coated particles to obtain carbonized particles, and performing surface carbon coating treatment on the carbonized particles to obtain the silicon carbon negative electrode material.