This product is a water-based conductive paste dispersed by nano conductive graphite, carbon coated particles and other superconducting electrothermal materials, which is used for pretreatment of lithium ion battery positive collector fluid aluminum foil. The product can be rolled on the aluminum foil coating, the resulting coating surface resistance is low, has good leveling, adhesion and solvent resistance and other characteristics. The battery aluminum foil treated by this product can prevent the corrosion of the electrolyte to the collector fluid, and has strong fastness to binding with the active material of the battery, and can reduce its contact resistance, thus inhibiting the dynamic internal resistance increase during the battery charge and discharge cycle, effectively improving the overall performance of the battery and prolonging the service life of the battery.