▎ 摘　　要

NOVELTY - Preparation of graphene conductive agent slurry from graphite tailstock involves sieving graphite tailstock at 100 mesh, removing debris, adding hydrofluoric acid, hydrochloric acid, nitric acid and purified water at ratio of 1:0.1-0.5:0.3-0.9:0.1-0.3:0.5-1, stirring at 80-120 degrees C for 12 hours, adding water, cooling, centrifuging, dehydrating, cooling to 0-4 degrees C, adding concentrated sulfuric acid, stirring, adding nitrates, solid mixtures and oxidizing agent, mixing, reacting at less than or equal to 20 degrees C, stirring 32-38 degrees C for 1-2 hours, adding deionized water, heating to 80-100 degrees C, and stirring for 30 minutes. USE - Method for preparing graphene conductive agent slurry from graphite tailstock. ADVANTAGE - The raw materials are inexpensive. The method has improved raw material utilization, and is suitable for industrial production. DETAILED DESCRIPTION - Preparation of graphene conductive agent slurry from graphite tailstock comprises sieving graphite tailstock at 100 mesh, removing debris, adding hydrofluoric acid, hydrochloric acid, nitric acid and purified water at ratio of 1:0.1-0.5:0.3-0.9:0.1-0.3:0.5-1, stirring at 80-120 degrees C for 12 hours, adding water, cooling, centrifuging, dehydrating, cooling to 0-4 degrees C, adding concentrated sulfuric acid, stirring, adding nitrates, solid mixtures and oxidizing agent, mixing, reacting at less than or equal to 20 degrees C, stirring 32-38 degrees C for 1-2 hours, adding deionized water, heating to 80-100 degrees C, stirring for 30 minutes, adding hydrogen peroxide, reacting, filtering, washing, drying, adding reducing agent, heating at 50-70 degrees C, stirring for 1-5 hours, centrifugal filtering, washing with deionized water, and dehydrating for less than or equal to 30 minutes. Reducing agent is hydrazine hydrate, ethylene glycol, sodium glycolate, and/or sodium borohydride.