▎ 摘　　要

NOVELTY - Graphene conductive paste preparation involves taking 10-15 pts. wt. graphite powder, 0.5-2 pts. wt. activating agent, 0.5-1 pts. wt. dispersing agent, 0.2-0.3 pts. wt. colloidal material, 0.1-0.5 pts. wt. carbon nanotubes, and accelerating agent as raw material. The graphite powder is natural flake graphite, expanded graphite and highly oriented graphite. The activating agent is carboxylate salt. The dispersing agent is selected from styrene maleimide resin, sodium lauryl sulfate or sodium dodecyl benzene sulfonate. USE - Method for preparing graphene conductive paste for lithium battery (claimed). ADVANTAGE - The method prepares the graphene conductive paste has excellent dispersibility and greatly improved charging and discharging efficiency, and significantly improves carrier concentration and conductivity of the battery active material. DETAILED DESCRIPTION - Graphene conductive paste preparation involves taking 10-15 pts. wt. graphite powder, 0.5-2 pts. wt. activating agent, 0.5-1 pts. wt. dispersing agent, 0.2-0.3 pts. wt. colloidal material, 0.1-0.5 pts. wt. carbon nanotubes, and accelerating agent as raw material. The graphite powder is natural flake graphite, expanded graphite and highly oriented graphite. The activating agent is carboxylate salt. The dispersing agent is selected from styrene maleimide resin, sodium lauryl sulfate or sodium dodecyl benzene sulfonate. The colloidal material is selected from xanthan gum, locust bean gum, titanium oxide, vanadium pentoxide, molybdenum oxide, molybdenum oxide, molybdenum disulfide, titanium oxide, titanium oxide, molybdenum disulfide or molybdenum disulfide. The graphene conductive paste is prepared as stripping medium and conductive improver. The solvent is selected from deionized water, N-methylpyrrolidone, N,N-dimethylformamide or N,N-dimethylacetamide. The viscosity modifier is selected from sodium carboxymethylcellulose, carboxyethylcellulose, ethylcellulose, carboxymethylethylcellulose, hydroxymethylcellulose, hydroxypropylmethylcellulose, hydroxypropylmethylcellulose, cellulose or their mixture. 5-10 pts. wt. graphite powder and 0.5-2 pts. wt. activating agent are mixed at 200-250 degrees C and then fed into airflow micro-machine to produce high-speed swirling flow into air flow micro-machine crushing chamber.The resulting material is mixed with 0.1-0.5 pts. wt. carbon nanotubes, 0.5-1 pts. wt. dispersant, 0.01-0.1 pts. wt. accelerator and 0.2-0.3 pts. wt. colloid material in micro-scale accelerator to composite rubber particles. The obtained composite rubber particles are mixed with 85-90 pts. wt. solvent in an ultrasonic disperser with stirring for 10-30 minutes, and then filtered through filter to get the lithium battery graphite thin conductive material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic electron microscopic image of the graphene conductive paste.