▎ 摘 要
NOVELTY - Preparation of a globular graphene comprises dispersing graphene in water or alcohol to obtain a concentration of 3-10 mg/mL, subjecting to ultrasonic treatment for 10 minutes to 10 hours at 1000-1800 W/cm2 and at 20-28 kHz or ball milling for 5-24 hours at 10-50 revolutions/minute, granulating, and drying; or dispersing graphene in water to obtain a concentration of 3-10 mg/mL, subjecting to dispersion for 2-5 times at 10000-40000 psi, granulating, and drying. USE - Method for the preparation of a globular graphene (claimed) used as carbon microsphere for catalyst carrier, drug transmission, lithium ion batteries, and supercapacitor. ADVANTAGE - The graphene has uniform structure, small volume, high density, good electrical conductivity, and allows convenient transportation.