▎ 摘　　要

NOVELTY - Preparation of graphene/nano carbon black/carbon nanotube composite conductive powder involves mixing nano carbon black, graphene, carbon nanotubes, dispersant and water to obtain an aqueous carbon slurry, heating and swelling the aqueous carbon slurry. The graphene/nano carbon black/carbon nanotube composite conductive powder comprises carbon nanotube three-dimensional network structure, sheet graphene and granular nano carbon black which are uniformly filled in the carbon nanotube three-dimensional network structure, and dispersant adsorbed on the surface of the nano carbon black, graphene, and carbon nanotubes. USE - Preparation of graphene/nano carbon black/carbon nanotube composite conductive powder (claimed) for electronic devices. ADVANTAGE - The method is simple, economical and suitable for large scale industrial production.