▎ 摘　　要

NOVELTY - Preparing lead-acid battery lead paste cathode comprises adding graphene slurry to the cathode of the lead paste, where the slurry comprises graphene, solvent and micro bubbles, the particle diameter of the micro bubbles is ≮ 100 µm, and the concentration of micro bubbles is greater than 106 µm/ml. USE - The method is useful for preparing lead-acid battery lead paste cathode. ADVANTAGE - The conductive paste is easy to agglomerate, stacking or even precipitation technology problem. The graphene slurry can reach the effect of not adding or adding dispersant under the condition of uniform dispersion of conductive, agent is good for transportation, storing and using, when applied to lead-acid battery electrode preparation process, micro-bubble disappears in the drying process, without introducing any impurities, which can better exert the conductive agent characteristics. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a method for preparing lead-acid battery cathode; and a lead-acid battery. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart illustrating the method for preparing lead-acid battery lead paste cathode (Drawing includes non-English language text).