Graphene composite material and preparation method thereof

• Main Authors: ZHOU BUCUN, LI FENG, SUN HAOYU, TANG ZHI
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2023
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention discloses a graphene composite material and a preparation method thereof. The method comprises the following steps: compounding metal and a graphene heat-conducting fin through welding; wherein the graphene heat-conducting sheet is formed by stacking a plurality of layers of graphene. Compared with a graphene material, the thermal conductivity of the graphene composite material in the direction perpendicular to the film surface is improved, and the graphene composite material has higher heat conduction efficiency. 本方案公开了一种石墨烯复合材料及其制备方法，该方法包括将金属与石墨烯导热片通过焊接复合；其中所述石墨烯导热片由多层石墨烯堆叠形成。该石墨烯复合材料相比石墨烯材料在垂直于膜面方向上的导热性得到改善，具有更高的导热效率。