On May 11, relying on the military-civilian fusion achievement transformation project of the Harbin Institute of Technology's R & D team—high-performance graphene composite heat sink project, the product passed the tests of Huawei, ZTE and other companies, and was listed as the only effective cooling solution for 5G communication equipment to support the product. The 5G product high-power chip cooling bottleneck. The entire project is expected to complete equipment installation and trial production at the end of this year, and mass production is planned for the first half of next year. After the project is in production, it will be able to produce 30 million pieces of high heat flux graphene-based heat sink products per year.
Traditional heat-dissipating materials have been unable to effectively dissipate the heat generated by the highly integrated sub-circuits and efficiently dissipate heat, which has always been a difficult world-class problem to crack. In the 5G era, communication equipment operates at high power, and the cooling function is more important. In 2017, HEXC New Materials Co., Ltd. prepared a high-performance graphene-based macroscopic bulk material, which effectively realized the effective heat dissipation for high heat for the first time.
Graphene (Graphene) is a two-dimensional crystal consisting of carbon atoms with a thickness of only one layer, separated from the graphite material. It is currently the thinnest and highest strength material in nature. Its breaking strength is 200 times higher than the best steel. At the same time, it has good elasticity, and the stretching range can reach 20% of its size. However, graphene is difficult to produce a certain product as a single raw material, and mainly uses its outstanding characteristics to compound with other material systems to obtain new composite materials with excellent properties.
Graphene-based composite materials are an important research direction in the field of graphene applications. They show excellent performance in the fields of energy storage, liquid crystal devices, electronic devices, biomaterials, sensing materials, and catalyst carriers, and have broad application prospects. . At present, the research on graphene composites is mainly focused on graphene polymer composites and graphene-based inorganic nanocomposites. With the deepening of research on graphene, the application of graphene reinforcements in bulk metal matrix composites More and more people are paying attention. Multifunctional polymer composites and high-strength porous ceramic materials made of graphene have enhanced many special properties of composite materials.
The research and application development of graphene continue to rise. Graphite and graphene-related materials are widely used in battery electrode materials, semiconductor devices, transparent display screens, sensors, capacitors, and transistors. In view of the excellent performance and potential application value of graphene materials, a series of important advances have been made in many disciplines such as chemistry, materials, physics, biology, environment, and energy. Researchers are committed to trying different methods in different fields to produce high-quality, large-area graphene materials. Through continuous optimization and improvement of the graphene preparation process, the cost of graphene preparation is reduced to make its excellent material properties more widely used, and it is gradually moving towards industrialization.
China also has unique advantages in graphene research. From a production perspective, graphite, which is the raw material for graphene production, has abundant energy storage and low prices in China. It is precisely seeing the application prospects of graphene that many countries have established graphene-related technology research and development centers in an attempt to commercialize graphene, and then obtain potential application patents in industrial, technical and electronic related fields. For example, the European Commission has adopted graphene as a "future emerging flagship technology project", set up a special research and development plan, and allocated 1 billion euros in the next 10 years. The British government has also invested in the establishment of the National Graphene Institute (NGI) in an effort to make this material accessible from laboratories to production lines and markets in the coming decades.
Graphene is expected to become a new generation of devices in many application fields. In order to explore the broader application fields of graphene, it is necessary to continue to seek for better graphene preparation processes to make it better applied. Although it has only been more than ten years since the synthesis and confirmation of graphene, it has become a research hotspot for scholars this year. Its excellent optical, electrical, mechanical, and thermal properties prompt researchers to continue to study it intensively. With the continuous development of graphene preparation methods, graphene will be more widely used in various fields in the near future.
The project breakthrough made graphene into macro-scale materials with a thickness of more than centimeters and integrated structural functions. This technology was originally used only in the aerospace field. Relying on the R & D team of Harbin Institute of Technology, it will soon be used in civil fields such as communication base stations, electronic equipment, LED displays and lighting, and cooling of new energy vehicles, electronic circuits, and focused solar power generation.
The company's deputy general manager Peng Qingyu introduced, "At present, the first phase of the expansion and expansion of the special factory building of the heat sink project, and the first phase of the graphene composite powder production line have been completed and phased commissioning, and joint debugging is in progress. Graphene composite powder The pre-forming production line, graphene heat-dissipating material final forming production line, graphene heat-dissipating material special processing production line and graphene heat-dissipating material heterogeneous connection production line have completed the design, equipment selection and non-standard ordering, and are preparing for equipment bidding.