Yesterday afternoon, the signing ceremony for the graphene industrialization project was held at the Sheraton Ningbo Hotel. The Ningbo Institute of Materials of the Chinese Academy of Sciences signed a contract with Shanghai Nanjiang Group. The technical transaction amount reached more than 200 million yuan, of which 100 million yuan was paid in cash, which was the highest in the history of technology transactions in Ningbo. Graphene is the thinnest material at present. It has been 10 times more expensive than gold. What is graphene? It is a two-dimensional crystal that is stripped from graphite material and composed of carbon atoms. The thickness of only one layer of carbon atoms is currently The thinnest material in the world. Why is graphene so important? Originally, it is the newest material in the world that is the thinnest, hardest, most conductive, and the most thermally conductive. For example, the conductivity is superior to that of metallic silver and copper, the strength is 100 times that of stainless steel, and the thermal conductivity is 10 times that of copper. Of course, the "worth" of graphene is also astounding, and the price once reached 5,000 yuan / gram. Since there is no large-scale production method and process for developing high-quality graphene, graphene cannot be widely used in the market. After more than three years of hard work, Liu Zhaoping's research team of Ningbo Institute of Materials, Chinese Academy of Sciences has finally made breakthroughs in the scale preparation technology of graphene. They have developed a new stripping technology route that enables low-cost, scale-up preparation of graphene. In the second half of 2011, the team designed and built a graphene pilot line with an annual output of 30 tons, becoming the first pilot line in the world to achieve high-quality graphene production at low cost. The price of graphene products also dropped. To 3,000 yuan per kilogram. Used to make mobile phone screens that can be folded up. Many citizens may be curious. Is such a high-tech technology related to the daily life of the cockroach? The answer is yes. For example, graphene can be used as a conductive agent for lithium ion batteries. Now, if you want to fully charge your electric car, it usually takes two or three hours. "The graphene-powered lithium battery can be fully charged in 10 minutes, and the performance and life of the battery will be greatly improved." Liu Zhaoping said. For example, people's big expectation for mobile phones is that they are thinner and thinner. If you use a material containing graphene as a mobile phone screen, you can fold the screen directly and use it with transparency.
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