▎ 摘　　要

NOVELTY - Metal-bonded graphene foam product, comprises: (a) a sheet or roll of solid graphene foam, having a sheet plane and a sheet thickness direction, composed of multiple pores (cells) and pore walls, where the pore walls contain a pristine graphene material having less than 0.01 wt.% of non-carbon elements or a non-pristine graphene material having 0.01-20 wt.% of non-carbon elements, the non-pristine graphene is graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, boron-doped graphene, nitrogen-doped graphene and/or chemically functionalized graphene; and (b) a metal that fills in the pores and is attached to graphene sheets. USE - The metal-bonded graphene foam product is useful as a heat spreader or thermal interface material in thermal management device and in heat dissipation or heat spreading element, where the element is disposed in a smart phone, tablet computer, digital camera, display device, flat-panel TV, or LED lighting device, fuel cell bipolar plate and battery current collector (all claimed). ADVANTAGE - The metal-bonded graphene foam product has a thickness-direction thermal conductivity of 10-800 W/mK or a thickness-direction electrical conductivity of 40-3200 S/cm, is cost-effective and highly conductive, mechanically robust graphene-based foams (metallized graphene foam) in large quantities and process enables the flexible design and control of the porosity level and pore sizes, and exhibits thermal conductivity, electrical conductivity, compression elasticity (high resilience or low compression set), and/or strength that are greater than those of the conventional graphite or carbon foams.