▎ 摘　　要

NOVELTY - Preparation of heteropoly acid modified carbon nanotube and/or graphene reinforced lead-based composite anode comprises performing amino acid modification treatment of carbon nanotubes and/or graphene, dissolving heteropoly acid in hot water to obtain 0.0001-0.01 mol/L heteropoly acid solution, adding carbon nanotubes, graphene modified and dispersant, dispersing carbon nanotubes and/or graphene in heteropolyacid solution to obtain solution containing carbon nanotubes and/or graphene particles, adding carbon nanotubes, graphene, dispersant and lanthanum chloride, mixing, standing for 24 hours, filtering to obtain heteropoly acid modified carbon nanotubes and/or graphene composite powder, alloying metal lead powder, heteropoly acid modified carbon nanotube and/or graphene composite powder in high energy ball mill under vacuum or inert atmosphere to obtain composite anode powder, cold forming composite anode powder under 20-50 MPa and sintering. USE - Method of preparing heteropoly acid modified carbon nanotube and/or graphene reinforced lead-based composite anode. ADVANTAGE - The method has simple process operation, low cost, excellent catalytic performance and similar service life to traditional lead anode. DETAILED DESCRIPTION - Preparation of heteropoly acid modified carbon nanotube and/or graphene reinforced lead-based composite anode comprises performing amino acid modification treatment of carbon nanotubes and/or graphene, dissolving heteropoly acid in hot water to obtain 0.0001-0.01 mol/L heteropoly acid solution, adding carbon nanotubes, graphene modified and dispersant, dispersing carbon nanotubes and/or graphene in heteropolyacid solution to obtain solution containing carbon nanotubes and/or graphene particles, adding carbon nanotubes, graphene, dispersant and lanthanum chloride, mixing, standing for 24 hours, filtering to obtain heteropoly acid modified carbon nanotubes and/or graphene composite powder, alloying metal lead powder, heteropoly acid modified carbon nanotube and/or graphene composite powder in high energy ball mill under vacuum or inert atmosphere to obtain composite anode powder, cold forming composite anode powder under 20-50 MPa and sintering heteropoly acid modified carbon nanotubes and/or the graphene-reinforced lead-based composite anode at 250 degrees C for 4 hours under reducing atmosphere.