▎ 摘　　要

NOVELTY - Preparing high-conductive graphite alkenyl conductive ink comprises (i) dissolving stabilizer and auxiliary agent into an organic solvent to obtain dispersing medium for graphene; (ii) adding graphite powder into a high-pressure stainless steel reaction kettle, introducing carbon dioxide, and starting ultrasonic wave generation system; (iii) controlling the ultrasonic power, and reacting, completing the reaction and quickly releasing the pressure, where graphene and some un-stripped graphite powder are released with carbon dioxide, entering the graphene collection container containing the dispersion medium obtained in step (i), where the carbon dioxide gas overflows, and the graphene is uniformly dispersed in the dispersion medium to obtain a graphene dispersion; and (iv) placing the graphene dispersion obtained in step (iii) into a centrifugal device, and removing the non-exfoliated graphite powder and large pieces of graphene by high speed centrifugation. USE - The method is useful for preparing high-conductive graphite alkenyl conductive ink. ADVANTAGE - The method retains the perfect properties of graphene, and provides excellent electrical conductivity. DETAILED DESCRIPTION - Preparing high-conductive graphite alkenyl conductive ink comprises (i) dissolving stabilizer and auxiliary agent into an organic solvent to obtain dispersing medium for graphene; (ii) adding graphite powder into a high-pressure stainless steel reaction kettle, introducing carbon dioxide through a high pressure pump into the kettle after the temperature of the reaction kettle reaches the preset temperature value, and starting ultrasonic wave generation system after the pressure in the reaction kettle reaches the pre-set pressure; (iii) controlling the ultrasonic power, and reacting at a preset reactor pressure, reactor temperature, ultrasonic power, and ultrasonic time, completing the reaction and quickly releasing the pressure, where graphene and some un-stripped graphite powder are released with carbon dioxide, entering the graphene collection container containing the dispersion medium obtained in step (i), where the carbon dioxide gas overflows, and the graphene is uniformly dispersed in the dispersion medium to obtain a graphene dispersion; and (iv) placing the graphene dispersion obtained in step (iii) into a centrifugal device, and removing the non-exfoliated graphite powder and large pieces of graphene by high speed centrifugation.