▎ 摘　　要

NOVELTY - High thermal conductivity structure based on a wide-width artificial graphite high-conductivity film comprises a base material i.e. artificial graphite high conductivity film. The preparation includes the following steps slitting the polyimide film, performing carbonization and graphitization treatment after the slitting is completed, and preparing an artificial graphite high-conductivity film of the base material, preparing the graphene raw material by gasification deposition method, crushing, and oxidizing the graphene surface, planting nano-copper particles on the surface of the graphene under the action of the catalyst, metallizing the surface of the graphene, pressing on one side of the base material, surface sintering to form a three-dimensional shape with a microporous structure, immersing the phase change material in the three-dimensional structure by low-temperature immersion, and pressing a protective film on the surface by mechanical pressing. USE - Used as high heat-conducting structure based on wide synthetic graphite high-conductivity film. ADVANTAGE - The film expands the heat conducting area and increases the heat conducting ability. DETAILED DESCRIPTION - High thermal conductivity structure based on a wide-width artificial graphite high-conductivity film comprises a base material i.e. artificial graphite high conductivity film. The artificial graphite high conductivity film is in contact with the surface of the component to be dissipated through a thermal contact surface, the middle part of the artificial graphite high conductivity film is a heat conduction surface, and the top of the heat conduction surface is a surface interface. The preparation includes the following steps slitting the polyimide film, performing carbonization and graphitization treatment after the slitting is completed, and preparing an artificial graphite high-conductivity film of the base material, preparing the graphene raw material by gasification deposition method, crushing, and oxidizing the graphene surface, planting nano-copper particles on the surface of the graphene under the action of the catalyst, metallizing the surface of the graphene, pressing on one side of the base material, surface sintering to form a three-dimensional shape with a microporous structure, immersing the phase change material in the three-dimensional structure by low-temperature immersion, and pressing a protective film on the surface by mechanical pressing.