Graphene, a familiar and unfamiliar term, is increasingly being mentioned in the industry. 'Black gold' Graphene, known as the 'King of New Materials', is the thinnest, highest strength, conductive, thermal conductivity The strongest new type of nano-materials, high strength, high elasticity, high conductivity / thermal conductivity of graphene, for medical equipment, battery materials, petroleum products, textile fibers, anti-corrosion coatings, agricultural fertilizers, sensors and other industries, Bring revolutionary influence
December 3, Beijing Zhongyuan Longgang Mining Technology Co., Ltd. and Beijing University of Chemical Technology Group jointly developed by the research group, the direct liquid phase separation of large-scale production of graphene technology and products released in Beijing, China Pacific Branch (Beijing) Limited Management Consulting As a national trading platform for scientific and technological achievements, the company will be responsible for the transformation and promotion of this new technology.
The first high-speed liquid-phase shear stripping technology
Graphene is a rare polymer that is rare in rare earth industry. The liquid phase direct stripping method developed by Zhongyuan Longgang and Beijing University of Chemical Technology, Professor Wu Weiwei, grasps the preparation of new graphene technology and constructs a graphene system with water-phase stripping graphite. High-quality graphene products.
According to the technical inventor, Professor Wu Wei of Beijing University of Chemical Technology, compared with the conventional liquid phase separation method, the aqueous phase is stripped to select the graphene derivative as an additive without surfactant to ensure the purity and environmental protection of the product; Second, the choice of shear-based stripping equipment, to avoid the graphene structure caused major damage; Third, at room temperature and pressure safe operation and reduce equipment investment.
Meng Yuanqiang, deputy general manager of Beijing Zhongyuan Longgang Mining Technology Co., Ltd, also said that the large-scale production technology of high-efficiency, low-cost and high-quality graphene was developed. After testing, the graphene products we produce are of high quality with an average of 7 floors Below, the size of the sheet is greater than 3 microns, 20% below two layers.
It is reported that at present, Zhongyuan Longgang has built an annual output of 1 ton of pilot production line, starting from June 2017 in Xinghe County, Inner Mongolia Construction of an annual output of 500 tons of graphene production base. Beijing Long Yuan Mining Technology Co., Ltd. Dragon Chairman Jane said that the direct liquid phase separation of graphene scale production technology and products, has recently been identified by the Ministry of Science and new agencies, has made innovative and advanced stage results, we firmly believe that this breakthrough will be the whole The battery industry and even the new energy industry, will have a profound impact.
Graphene or drive the trillion-level downstream applications
Due to the excellent performance of graphene, its application prospect is also very broad, mainly including two aspects, one is the modification of traditional materials, such as the modification of some perfumes, coatings and plastic products, on the other hand Is to help develop new industries to develop high-tech products such as flexible, flexible screen mobile phones, sensors, energy storage materials.
According to public statistics, the current global graphene production capacity reached the level of 100 tons of state, the next five to ten years may reach thousands of tons.From the global market size, by 2020 almost global Of the graphene market size may exceed 1.5 trillion, our country probably accounted for more than half, is expected to be 8800 billion yuan.
According to Ma Lin, a researcher at the Institute of Materials Science and Technology, China Electronics and Information Industry Development Research Institute, "If the graphene industry becomes industrialized, it may form a terahertz downstream application industry."
However, graphene industry is still in the concept of the introduction period, the industry breakthrough in the early Gartner had released a new technology industry maturity curve, from the curve of view, China's graphene industry has gone through five stages, the technology of infancy , The peak expected, as well as the following three periods (bubble trough period, climbing period, stable application period).
Now we expect the graphene is very high, at the peak expected, but most of the products are still located in the research stage, there is no real commercial application of the product.Marlin said that from 2021 to 2035 will be graphite Ethylene industry more mature stage.
Graphene currently on the domestic market mainly in the downstream areas of anti-corrosion coatings, lithium battery conductive agent, electric film, etc. Graphene as an additive to enhance the performance of existing products, the future will be widely used in graphene flexibility Electronic products, smart wear, functional coatings and other fields.
Smart phones, new energy vehicles and other industries innovative fire
At present, the smart phone industry is encountering bottlenecks in innovation. The major mobile phone brand innovation is sluggish. It can only be used in near-full-screen, dual-camera and quad-photographic technologies to make minor innovations. Today's technologies and materials are being used Limit the pace of innovation in the mobile phone industry.For example, bold attempt to slim appearance and super-life Samsung, but the outcome of the Note 7 was reaping.
The current status quo is, you want to have a longer battery life have to install a thicker and larger battery, which is contrary to the needs of users on the slim phone body.For a clearer and better camera, you need a raised camera , Sacrificing the aesthetic appearance of the phone's appearance, so that the pursuit of the ultimate aesthetic sense of displeasure ... ... These, all need the application of new materials, it is expected to bring disruptive innovations.
In the smart phone industry, graphene can have an impact on batteries, screens, modems, and even camera sensors. The use of graphene's very good conductivity, high strength, high capacitance, etc. is made of graphene conductive agent, which can reach 1000 mAh capacity, 3 times higher than the current graphite.
In the flexible screen technology, the graphene layer two layers of three more stacked more color deeper, more than 5 layers of graphene is not transparent, the touch screen has been able to 1 layer, 2 layers, the more layers eventually become with graphite The same black, while the high flexibility of graphene can make the touch screen easy to roll up.
In addition, graphene can also be used in the sensor, to help IoT structures, such as gas sensors, mechanical sensors, biosensors and so on.
In fact, many mobile phone manufacturers are trying to expand their applications in this area. For example, Samsung, LG and other companies have continuously filed graphene patents. Samsung and Huawei are also actively developing graphene batteries.
For the first time, researchers in South Korea have produced flexible transparent displays consisting of multilayer graphene and fiberglass polyester film substrates. Researchers at Samsung and Sungkyunkwan University in South Korea are working in a 63cm wide flexible transparent glass fiber polyester On the board, a television-sized pure graphene was created, which they said is by far the largest 'block' of graphene, and later they used the graphene block to make a flexible touchscreen, the researchers said In theory, people can roll up their smartphones and leave behind their ears like a pencil.
Nanyang Technological University, Singapore scholars have developed a graphene as a light-sensitive components of the new light-sensitive components, is expected through a special structure, so that light-sensitive than the existing CMOS or CCD increased thousands of times, and the loss of energy only The original 10%.
Just a few days ago, Samsung announced the development of a core cell technology using graphene, which has successfully synthesized 'graphene balls' and said it can increase the battery capacity by 45% and increase the charging speed to the existing standard Five times in just 12 minutes using graphene's core battery technology can also make mobile phone battery life longer.
Huawei, another emerging giant in the field of smart phones, made new progress in the application of graphene technology. At the end of last year, Huawei's Central Research Institute's Watt Laboratory announced a major breakthrough in lithium-ion battery research at the 57th Japan Battery Congress .
The experimental results show that graphene-based new high-temperature technology can increase the maximum temperature of lithium-ion battery 10 ℃, the service life of ordinary lithium-ion battery 2 times.
Graphene technology on the battery, the screen transformation will not only affect the mobile phone area, the same can be on the current normal wearable devices, new energy vehicles and other industries to bring a revolutionary impact. Purity, better quality and lower cost, production More efficient liquid-phase direct stripping Large-scale preparation of graphene technology, will undoubtedly promote the relevant downstream industries on the positive application of graphene products, thereby bringing more disruptive changes in the industry, giving consumers a better experience .
