Lithium-pre-embedded silicon-carbon negative electrode material and preparation method and application thereof

The invention relates to the technical field of lithium ion battery materials, in particular to a lithium pre-embedded silicon-carbon negative electrode material and a preparation method and application thereof.The preparation method comprises the steps that a silicon source, a lithium source, a carbon source and an organic solvent are mixed, then stirring and ball-milling treatment is conducted, and slurry is obtained; and carrying out heat treatment on the slurry to obtain the lithium-pre-embedded silicon-carbon negative electrode material. According to the invention, through a mode of adding stirring while ball milling, strong shearing, impact and rolling are generated, so that the silicon source and the lithium source are fully contacted and mixed, the mixing effect is improved, the mixing time is shortened, and the energy consumption is reduced, thereby obtaining the lithium-pre-embedded silicon-carbon negative electrode material and realizing the pre-lithiation process. The preparation method is complet