▎ 摘　　要

NOVELTY - High-capacity and high-stability silicon-carbon anode material comprises multiple spherical composite particles (10) and an organic cracked carbon layer (20) coated on the exterior of multiple first composite particles. The spherical composite particles include an inner core layer (11) and a carbonaceous material layer wrapped outside the inner core layer, where the mass ratio of the inner core layer and the carbonaceous material layer is (3-65):1. USE - High-capacity and high-stability silicon-carbon anode material used for a battery. ADVANTAGE - The high-capacity and high-stability silicon-carbon anode material is easy to prepare and convenient to use, has high conductivity and good structure stability, effectively relieves the silicon cathode volume expansion, and keeps stable structure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a high-capacity and high-stability silicon carbon anode material, which involves: (A) mixing the nano silicon and the carbonaceous material to obtain a powdery mixture after ball milling, mixing the powdery mixture with the organic carbon source solution, the nitrogen source, and the surfactant, shaking, and ultrasonically dispersing to obtain a mixed solution; and (B) subjecting mixed solution undergoes a solvothermal reaction and performing solid-liquid separation to obtain a solid substance and calcining solid material to obtain product. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a material. Spherical composite particles (10) Inner core layer (11) Carbonaceous material layer (12) Organic cracked carbon layer (20)