▎ 摘　　要

NOVELTY - Structural-functional integrated graphene material comprises many of graphite crystals composed of graphene sheets. The orientation degree of the graphite crystal is more than 85% and plurality of graphite crystals constitute conductive heat conduction path. In the structure-function integrated graphene material, the orientation degree of the graphene sheet is greater than or equal to 80%, the density is greater than or equal to 1.8 g/cm3, and the length of each graphite crystal is more than 150 nm. USE - The structural-functional integrated graphene material is useful in graphene material having high strength, high modulus, high electrical conductivity and high thermal conductivity (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing structural-functional integrated graphene material comprising (i) soaking the graphene oxide assembly material in the plasticizer, (ii) stretching the assembled material in plasticizer and then applying external force to maintain the current length, and releases the stress between the sheets until the stress between the sheets is zero, and (iii) thermally reducing dried graphene oxide assembly material to obtain structural-functional integrated graphene material.