▎ 摘　　要

NOVELTY - Graphene quantum dot/lead oxide composite material, is prepared by mixing carbon source and lead oxide uniformly, reacting at 45-80degrees Celsius for at least 30 minutes, heating to 180-220degrees Celsius, continuously reacting or microwave processing to continue the reaction. USE - Graphene quantum dot/lead oxide composite material for lead-acid battery (claimed). ADVANTAGE - The graphene quantum dot/PbOx composite material has large specific surface area, excellent conductivity, which can increase the electrode material and the electrolyte of the contact, improves the electronic conductivity of the material, improves the active site of the reaction, reaction dynamics, electrochemical performance of material in the lead-acid battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a lead-acid battery.