▎ 摘　　要

NOVELTY - Hybrid three-dimensional network graphene material comprises three-dimensional network as a skeleton graphene and three-dimensional mesh grid graphene nanosheet. USE - Used as hybrid three-dimensional network graphene material. ADVANTAGE - The material: has high thermal conductivity, good stability and integrated work ability. The method is simple, safe and environmentally friendly; and has low cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing hybrid three-dimensional network graphene material comprising (i) preparing graphene oxide dispersion and graphene nanosheet dispersion, (ii) using mixed solution, preparing graphene oxide and graphene nanosheet mixed solution, sonicating and facilitating dispersion mixing, (iii) taking the mixed solution obtained in the step (ii) and subjecting to hydrothermal reaction to obtain three-dimensional graphene network, and (iv) rinsing three-dimensional graphene network and subjecting to vacuum freeze-drying.