▎ 摘　　要

NOVELTY - Lead-acid battery lead paste comprises 100 pts. wt. lead powder, 7-10 pts. wt. sulfuric acid solution, 10-12 pts. wt. deionized water, 0.05-0.1 pts. wt. fiber, 0.2-0.4 pts. wt. sodium ligninsulfonate, 0.1-0.3 pts. wt. humic acid, 0.6-1.0 pts. wt. barium sulfate, and 0.2-1.0 pts. wt. graphene or polyaniline composite material. USE - Lead-acid battery lead paste. ADVANTAGE - The lead-acid battery lead paste replaces existing acetylene black, effectively reduces negative resistance, improves negative conductivity, and improves battery cycle life, and has large current charging and discharging capability, and can be prepared in a simple and cost-effective manner. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing lead-acid battery lead paste, which involves adding graphene and polyaniline powder into a dispersant to form graphene suspension, and then transferring the mixed polyaniline and graphene dispersion into hydrothermal reactor at 140-200 degrees C to obtain the composite material; and (2) a method for preparing lead-acid battery negative lead paste, which involves mixing lead, fiber, sodium lignosulphonate, humic acid, barium sulfate and graphene or polyaniline for 5-10 minutes to obtain mixed dry powder, and then adding deionized water and sulfuric acid solution with stirring for 15-20 minutes to obtain the lead paste negative lead paste. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical representation depicting negative electrode impedance of the lead storage battery. (Drawing includes non-English language text).