▎ 摘　　要

NOVELTY - Graphene-containing lead-acid battery repair agent comprises 0.01-1% graphene and 0.01-10% dispersant. USE - Graphene-containing lead-acid battery repair agent. ADVANTAGE - The graphene-containing lead-acid battery repair agent increases battery capacity by activating inert large-particle lead sulfate crystals during the battery charging and discharging process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene-containing lead-acid battery repair agent, which involves weighing and mixing graphene, dispersant and auxiliary agent according to the ratio in water ultrasonically.