▎ 摘　　要

NOVELTY - Method for preparing a composite negative electrode material for a lithium ion battery involves mixing 84-90 %mass raw material (A), 1-8 %mass raw material (B), and 5-14 %mass rubber plasticizer, carbonizing and sieving to obtain the composite negative electrode material, where the raw material (A) is a graphite precursor, the raw material (B) is a conductive agent paste. USE - The method used for preparing composite negative electrode material for lithium ion battery (claimed). ADVANTAGE - The method greatly reduces the internal void ratio of the negative electrode material particles and reduces the surface defects, has a certain porosity and amorphous degree, greatly improves the magnification performance, is cost-effective, simple and controllable, and suitable for large-scale industrial production.