In the recent capital market, good news about the graphene industry has continued to spread, and the market development process of the graphene industry has been "boosted" by many parties. The bottleneck encountered in the mass production of graphene market has been overcome by relevant R&D teams.

　　An authoritative person from the Ministry of Industry and Information Technology revealed on September 28 that the state will support the development of the graphene industry through a variety of means, including the upcoming guidance on the development of the graphene industry, the creation of an industrial joint innovation center, and the establishment of an industrial development alliance by the Ministry of Industry and Information Technology. The country's first graphene and advanced carbon material characteristic industrial base has also been approved recently and will be established in Qingdao. At the same time, the government has also established a 100 million yuan graphene-related project investment fund. On the day the news came out, graphene concept stocks were active and rose against the trend. Five graphene sector concept stocks realized large-scale capital inflows. The news is good for the capital market. However, it has to be admitted that there is a technical bottleneck for mass production in the industrialization of graphene so far.

　　The "veil" of graphene

　　Whether it is the capital market or the new energy market, graphene has received widespread attention. The main reason is that graphene, as an innovative material, has its own extraordinary conductivity. Its application prospects mainly include the field of new material batteries. Today, when the price of silver reaches 2987 yuan/kg, if graphene can be used to effectively replace silver as a conductive material, its manufacturing cost will be greatly reduced. Nowadays, graphene has not been widely promoted, mainly because of technical bottlenecks in mass production.

　　Due to the late start of graphene-related research, large-scale academic research on graphene began in 2010 when the two-dimensional graphene material-related research experiment won the Nobel Prize in Physics. At present, most of the graphene production is for laboratory use, and the commercial industry is always facing the bottleneck of uncontrollable costs. Recently, Professor Liu Jianhong from the School of Chemistry and Chemical Engineering of Shenzhen University and his research and development team have made major breakthroughs in the application of graphene battery materials, ultra-fine powder materials, conductive materials and other fields, and have achieved small-scale production and market applications of graphene. . Ten core patents have been applied for.

　　Liquid phase preparation method breaks through the bottleneck

　　Graphene is a structure with the thickness of a single layer of carbon atoms exfoliated from graphite. According to Professor Liu Jianhong, there are two main methods for preparing graphene currently on the market. One is the chemical vapor deposition CVD method, which mainly uses chemical reaction cooling deposition to deposit graphene. Due to the poor controllability of the chemical reaction, the number of graphite microplatelets formed by the deposition is unstable, and the graphite microplatelets prepared by it are difficult to meet the structural requirements of graphene. The second method is the oxidation-reduction method. A strong oxidant separates the links between layers in the graphite multilayer structure to obtain graphene. This method is market-recognized, but it cannot accurately separate the graphite layer, and chemical reactions will destroy the graphene structure, and it is difficult for the produced graphite microchips to meet market requirements.

　　Liu Jianhong’s team developed a chemical liquid phase method to solve the problem that the structure of graphene is difficult to complete. This method directly sinters the liquid polymer into graphene through a series of thermochemical reactions. After testing, the structure of the graphene produced by the chemical liquid phase method is completely consistent with the internationally recognized single-layer graphene structure. "Only a complete graphene structure can give full play to its excellent electrical conductivity." Professor Liu Jianhong said, "The development of the graphene industry should focus on electrical conductivity. If it is due to a technical bottleneck, the development of electrical conductivity should be abandoned, and the development of thermal conductivity should be replaced. The use of high-cost graphene to achieve the effect of resistance heating is not in line with the market development trend." Currently, Shenzhen Power Innovation Technology Enterprise, founded by Liu Jianhong’s R&D team, Shenzhen Anlihao Industrial Co., Ltd., and GEM Co., Ltd. The company (002340SZ) has established a joint venture company to focus on promoting the industrialization of graphene technology achievements in the fields of new energy, ultra-fine powder, and conductive materials.

　　Liu Jianhong: Develop graphene new material industry with the requirements of Industry 4.0

　　The concept of the Industry 4.0 era was first put forward by Germany, and its intention is to explain that the industrial world will usher in the fourth industrial revolution marked by highly digitalized, networked, and self-organized machines. The State Council released the "Made in China 2025" plan in 5 years this year, marking that China's manufacturing industry is entering the industry 4.0 era. Professor Liu Jianhong told a reporter from China Business News: “The R&D team has implemented the ideas and requirements of Industry 4.0 from beginning to end. In the process of graphene industrialization research, the R&D team has control over digital costs, market size, and investment benefits. The return has a detailed discussion."

　　According to reports, in addition to graphene-structured particles, graphene-coated copper that can be used as antifouling coatings for marine ships, cuprous nano-powders, as well as graphene-based oxygen Reduction catalyst. It is understood that the main development prospect of graphene-supported oxygen reduction catalysts is in the application of aluminum-air batteries. After using graphene as the carrier of the oxygen reduction catalyst, the current density obtained by the aluminum-air battery is greatly increased, and the short life of silver oxide as a catalyst is solved, and the shortcomings of being easily interfered by carbon dioxide in the air are solved.

　　Experts in the industry believe that it takes a long time for the related concepts of aluminum-air batteries to develop from laboratory to comprehensive testing and even mass production. However, the related development of aluminum-air batteries in the new energy vehicles, mobile phone batteries, and yacht energy storage industries are all Immeasurable.