▎ 摘　　要

NOVELTY - Silicon-based negative electrode comprises conductive agent, dispersant, silicon-carbon composite material, and agglomerant. The conductive agents includes a carbon-based conductivity agent, where the carbon-base conductivity agents is a single-wall carbon nanotubes nano-tube, and the thickness of the single-walled carbon nanofibrils is less than 4 layers. The dispersant is a polypropylene dispersant. USE - Silicon-based negative electrode comprises conductive agent. ADVANTAGE - The silicon-based negative electrode composition has high aspect ratio, compared with multi-wall carbon nano-tube, thus battery performance is greatly improved, with excellent cycle and longer battery life, at the same time, it can reduce the dosage of the conductive agent and reduce the cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing silicon-based composition negative electrode, which involves: 1. dissolving dispersant in water dispersing uniformly to obtain the first dispersant solution; 2. adding the conductive agent into water dispersing uniformly and adding the first dispersant solution in the dispersing process to obtain the conductive paste; 3. adding the dispersant into water dispersing uniformly to obtain the second dispersant solution with mass concentration of 1-5 wt.%; 4. adding the bonding agent into the water dispersing uniformly to obtain the mass concentration is 30-50 wt.% of agglomerant solution; 5. adding sequentially conductive paste and the silicon-carbon composite material into the second dispersant solution; 6. dispersing uniformly, then adding the agglomerant solution dispersing uniformly to obtain the silicon negative electrode slurry negative electrode of Silicon coating the silicon negative electrode the film, drying to obtain the silicon-based negative electrode composition.