▎ 摘　　要

NOVELTY - Preparing anisotropic graphene skeleton phase change composite material involves adding ethanol to the water system for directional freezing to make the graphene sheets arranged regularly, adding polyimide and graphitizing to connect graphene sheets to reduce interfacial thermal resistance, and contacting thermal resistance and phonon scattering caused by defects. USE - Method for preparing anisotropic graphene skeleton phase change composite material. ADVANTAGE - The method is safe, eco-friendly and pollution-free, and solves problem of low filling content and high thermal conductivity of the previous phase change composite materials.