▎ 摘　　要

NOVELTY - Preparing improved performance graphene conductive ink comprises (i) taking epoxy resin and 10-30 wt.% graphene, adding ethanol as a solvent, configuring into a dispersion and ultrasonicating; (ii) adding 0.5-2 times the amount of imidazole ionic liquid and ultrasonically treating; (iii) adding polyetheramine curing agent, stirring, dispersing and coating on a ordinary A4 printing paper substrate; and (iv) naturally drying to obtain graphene conductive ink coating on the substrate. USE - The method is useful for preparing improved performance graphene conductive. ADVANTAGE - The method is simple and suitable for variety of substrates; and improves the dispersibility of graphene and performance of the prepared conductive ink and exhibits synergistic effect by utilizing imidazole ionic liquid. The ink has excellent conductivity.