▎ 摘　　要

NOVELTY - An anode slurry comprises composite carbon nanotube comprising medium-sized carbon nanotube, long carbon nanotube and short carbon nanotube, graphene having layered structure, polymer material, dispersant and solvent comprising N-methyl-2-pyrrolidone. When slurry is used in anode of battery, the medium-sized and short carbon nanotubes are used to surround anode conductive unit in anode material of battery. The long carbon nanotubes bridge different positive conductive units to reduce electron crossing. The internal resistance generated by electrolyte to the other positive conductive unit increases conductivity of entire anode. The graphene is used to interface different medium, short and long carbon nanotubes and extend its conduction dimension to enhance the conductivity of the entire slurry. The polymer material disperses the medium-sized, short and long carbon nanotubes. USE - Anode slurry used in lithium cobalt oxide battery, lithium-nickel-manganese-cobalt oxide battery, lithium iron phosphate battery and lithium cobalt binary battery or ternary battery (claimed). ADVANTAGE - The anode slurry has improved surface coverage and low agglomeration phenomenon. DETAILED DESCRIPTION - An anode slurry comprises composite carbon nanotube comprising 0-5 wt.% medium carbon nanotube having length of 5-15 mu m and diameter of 12-20 nm, 0.1-1 wt.% long carbon nanotube having length of 100-300 mu m and diameter of 10-12 nm and 0-5 wt.% short carbon nanotube having length of 1-15 mu m and diameter of 20-50 nm, graphene having layered structure, 1-1.2 wt.% polymer material, a dispersant and a solvent comprising N-methyl-2-pyrrolidone. When the slurry is used in the anode of the battery, the medium-sized and short carbon nanotubes are used to surround the anode conductive unit in the anode material of the battery. The long carbon nanotubes bridge different positive conductive units to reduce electron crossing. The internal resistance generated by the electrolyte to the other positive conductive unit increases the conductivity of the entire anode. The graphene is used to interface different medium, short and long carbon nanotubes and extend its conduction dimension to enhance the conductivity of the entire slurry. The polymer material disperses the medium-sized, short and long carbon nanotubes. The dispersant fills gap between the polymer material and medium-sized, short and long carbon nanotubes to improve surface coverage of medium-sized, short and long nano- carbon tube, reduce the occurrence of agglomeration and avoid accumulation or precipitation of the medium-sized, short and long carbon nanotubes.