▎ 摘　　要

NOVELTY - A three-dimensional graphene-based phase change material comprises graphene gel and 0.1-99.9 vol.% paraffin. USE - Three-dimensional graphene-based phase change material. ADVANTAGE - The material has high efficiency thermal energy storage. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of three-dimensional graphene-based phase change material comprising 1-100 mg/mL graphene oxide aqueous solution, pumping liquid nitrogen, freezing, pumping inert gas, adding alkene gel film, heating at 500-800 degrees C for 0.5-2 hours, raising temperature to 1000-1300 degrees C for 0.5-3 hours and at 2000-3000 degrees C for 0.5-4 hours, obtaining graphene gas gel, adding 0.1-100 g/ml paraffin and dichloromethane solution, soaking for 0.5-10 hours, and vacuum drying at 30 degrees C.