On December 18th, the world's first “graphene creation space†was launched in Beijing, which means that in the next two years, there will be hundreds of creative spaces in the display, experience, sales and cooperation of graphene products. Speeding up the development of the graphene industry. However, calmly observing the graphene industry that is still in the "infancy", it is not difficult to find all kinds of chaos that breed in the industrial chain, and it is urgent for the industry to introduce standards as soon as possible.
Upstream: brain fever ignores technical threshold
It is said that the graphene industry is a "blue sea". Who wants to scoop a big spoon?
Under the traditional thinking formula, some investors will immediately think of occupying the upper reaches of the industry, and the production of graphite in the circle as an “industrial park†to build a large-scale production of graphene in the factory. However, they overlook a very critical element - the technical threshold, because, although graphene exists in nature, it is a single-layer structure that is difficult to peel off.
Dai Shifeng, secretary general of the Nanomaterials Branch of the National Nanotechnology Standardization Technical Committee, said that the International Organization for Standardization defines that graphene is a monolayer of carbon atoms. So, what do some researchers do is the structure? Obviously not, what is done is the material. Therefore, the national standard for the terminology, definition and code of graphene materials in China proposes that the concept of “graphene material†should be introduced in the definition, that is, graphene is not only the construction of graphite, but also the construction of graphene material. There are many forms: one or more layers, oxidized or doped, and sheets, membranes, and nanoribbons. This proposal has received a certain degree of international recognition.
Professor Gu Yuewen, a professor at the University of Tokyo in Japan and a well-known international scholar in the field of nanomaterials, pointed out: "In fact, researchers only get sheet-like graphene, and almost nothing can be done. This two-dimensional structure of single-layer graphene is required. The film is connected to the network. This is very difficult, because connecting them together more than two layers will be re-graphitized, losing its unique performance." Obviously, this needs to be achieved through technical means.
It can be seen that those who are hot-headed and rushing into the upper reaches of the graphene industry chain need to be cautious in learning, figuring out what is going on from the graphene standard, and measuring the comprehensive technical strength of the enterprise itself. Do the decision.
Midstream: "The emperor's new clothes" will be dismantled sooner or later.
Graphene became famous overnight in 2010 for the Nobel Prize in Physics, and many people want to get along with it. However, before the industry standard has been unified, in the production and use of industrial chain products such as graphene powder and graphene film, there are various products named after graphene, which can be said to have earned enough attention.
Not long ago, it was really shocking that some companies said that they produced finished products of “graphene batteriesâ€. However, the analysis of its key technical points, found that the so-called "graphene battery", some are lithium ion batteries or lead-acid batteries doped with graphene powder; some battery cathode material is graphene powder coated lithium iron phosphate, the exact It should be called “graphene-based lithium-ion batteryâ€; some of the graphene battery performances in the media report that “smash most of the lithium battery in the market†actually make graphene function as a high-efficiency heat sink in high-temperature batteries. Not as the positive and negative materials of the battery.
What's more, individual companies' products are covered with "graphene" coats, and graphite is sold as graphene; textiles are mixed with a little so-called graphene powder to make clothes, which are said to have a beauty and beauty for consumers. effect. This has brought great harm to the development of the industry. However, due to the presence of graphene gimmicks, the investment market that does not know the truth pays attention to the heat but does not decrease.
As early as two years ago, the British financial regulator issued a warning: "Unscrupulous brokers seem to use the speculation related to graphene, taking the future uncertainty of graphene to lure consumers into investment." Some experts pointed out that in the industry Under the situation that the standard is about to be introduced, the "new emperor's new clothes" will be dismantled sooner or later.
Downstream: eager for quick success, "living" is not long
Finding the "killer" for the large-scale application of graphene is the goal that the pioneers in the graphene industry have dreamed of.
Up to now, more than 500 companies in more than 30 countries around the world have been involved in graphene and its application research. Almost every week, there are news reports about the development of new graphene labs, some of which may benefit the world in the future. However, some people may be aware that they are doing nothing, but in the name of the results, "telling stories" to collect more research and development funds, so that uninformed people will use these "outcomes" as a practical application, ignoring their long distance from industrialization. distance.
At present, due to the technical bottleneck, the graphene industry has not yet formed a complete and mature industrial chain. The R&D and manufacturing enterprises and the downstream application enterprises are out of touch, and the product technology level is uneven. The market development is not very healthy, and even the phenomenon of fraud and infringement and fish-eye mixing is occurring.
Liu Zhaoping, a senior researcher at the Institute of Materials Technology and Engineering of the Chinese Academy of Sciences, who has studied the graphene patent, pointed out that it is expected that patent litigation involving graphene technology will occur in the next three to five years. It is understood that Shenzhen Uniwang will propose the first lawsuit of graphene next week. This is a wake-up call for a chaotic trademark brand in graphene products.
Dai Shifeng emphasized that in order to standardize these unhealthy phenomena, China's graphene industry has proposed four standardization goals: one is to make meaningful standards to create a good industrial development environment; the other is to promote typical applications, and to make some standards around characterization measurements. The further application of the industry provides technical support; the third is to promote the sustainable and healthy development of the industry, to allow the industry to have a certain degree of concentration, to form an orderly competition; the fourth is to promote the integration of industry standards into all walks of life.
Obviously, it is not too long to "live" with the mentality of eagerness and quick success. The development of national industry standards and integration with international standards will help the original graphene industry clear source.
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