Polysilicon is difficult to replace batteries, environmental problems difficult photovoltaic industry
“Not very robust than in the next 50 years, there is little alternative to polysilicon materials become electronic and photovoltaic industry, the main raw material, a researcher at Tsinghua University in the field new energy to the “Securities Daily” reporters that statement as not science, but is forced to recognize reality. Compaq Evo N600c battery Compaq Evo N610c battery
The data show that high-temperature polysilicon in the molten state, with great chemistry and the living nature of the role with almost any material with properties of semiconductors, it is extremely important material for semiconductor quality. Electronics industry is widely used in the manufacture of transistors, tape recorders, refrigerators, color TV, VCR, computer and other basic materials. In addition, polycrystalline silicon is the direct production of silicon raw materials, is a contemporary artificial intelligence, information processing automation, semiconductor devices photoelectric conversion based electronic information materials. Enjoy “Building Microelectronics cornerstone” of the world.
More importantly, solar (photovoltaic) and wind energy, nuclear energy is the same for the new energy future of the world have recognized the trend in this context, solar power is gradually being accepted by the market. The production of monocrystalline and polycrystalline solar cells is the main raw material required. The latest statistics show that the monocrystalline silicon and polycrystalline silicon PV industry in the application rate of 90%. Compaq Tablet PC TC1000 battery Compaq Tablet PC TC1100 battery
Therefore infer that the above phrase appears in the industry described rigorous enough for the people “not science”, says the “poly” in the future, sophisticated technology, information electronics and even the daily life of people is irreplaceable.
Difficult to replace silicon cells
“Solar energy is a fair, clean, excellent alternative to traditional energy sources. Is it limited to the state of science and technology level, in particular energy storage (battery) status of technology, resulting in the production cost is too high (over the Internet e-price), plus the upper polysilicon main raw material for producing solar panels and dealing with problems of environmental pollution that exist to development of solar energy has been some resistance. in terms of science, I do not think these can be limited or hindered the development of solar energy technology, or a link because of the problem Pollution difficult to resolve, once and deny the importance of developing solar energy. In fact, they continue to improve through scientific and technological, have been gradually overcome, R & D on new materials, Rapid industrialization in the development. “the investigator told reporters. Compaq presario 1700 battery Compaq presario B2800 battery
The report of the current seen in the international development of solar cells, monocrystalline silicon about the tendency of polycrystalline silicon, silicon ribbon, thin film materials (including microcrystalline silicon thin film of a compound based thin film and the film of dye). The last film “thin” (thin) is the industry is dominated by silicon and polycrystalline silicon solar cell replacement materials. Some thin-film battery has completely renounced the demand for polysilicon in order to solve the “environmental technology is not environmentally friendly,” the problems of polycrystalline silicon production processes are pollution PV upstream.
“The process of the solar industry is difficult to increase the resistance of the largest solar cell efficiency of conversion, the use of language description of the market is difficult to reduce their production costs. While some of battery technology has changed in thin layers of polysilicon dependence and the existence of the battery of traditional silicon cells be easily broken, bring disadvantages, poor seismic capacity shortcomings, he can not go beyond conversion of traditional silicon cells, but declined. “Most people who have asked not to be named the” Securities Daily “told reporters. Compaq presario C700 battery Compaq presario V3000 battery
Pollution polysilicon
Statistics show that the process of production of polysilicon in China is amended to integrate the Siemens process. The report says that the principle of the method of Siemens is about 1100 ℃ silicon of high purity on the reduction of high purity trichlorosilane to produce high purity polysilicon deposition on silicon core, and modified Siemens process is the basis of the traditional process Siemens together with energy conservation, energy, recycling production process with a large number of sub-products and the support of many heat process-product. Most manufacturers are world production of polysilicon using modified Siemens.
Although this improvement of the production process continues to produce large number tetrachlorosilane silicon, while silicon is a kind of corrosive liquid hydrogen tetrachloro toxic. Sony VGP-BPS13A/S battery Sony VGP-BPS13AS battery
In this regard, Tsinghua University researcher said, “improved production technology stress closed circuit can effectively reduce the oven to reduce energy consumption, reducing exhaust gas recovery , maximize the use of the production of polycrystalline silicon in a variety of materials, emit very little waste, compared with the traditional method, the impact of environmental pollution contribute much improvement. Although this process is further improved and, indeed, could not eradicate the phenomenon of pollution. But I insist that the phenomenon more pollution of the environment and corporate opportunism, irresponsible management and poor, the market access is directly related to the standard is too low. ” Sony VGP-BPS12 battery
excess production capacity of polysilicon
September 26, 2009, State Council approved the Development and Reform Commission and other departments “on the Suppression Neng Bu Fen industry excess capacity and duplication of the construction industry and the health and development Yindao” The article made it clear that Yi significant excess production capacity of polysilicon. Subsequently, the PV is not only due to the management of excess capacity on several occasions “name and” shame, as many Media representatives in one of overcapacity. Recently, China Renewable Energy Society, Vice-Chairman of Meng Xiangan more through the media that “the Ministry of Commerce to seek the views of industry organizations, for the photovoltaic industry with the iron and steel, nonferrous metals, construction materials, chemicals included in the list of “two high”. Sony vgp-bps13b/b battery
In this regard, Li Junfeng, deputy director of the NDRC Energy Research Institute, told the media “should consider the same energy in different products to create value, for example, the price of a kilogram of polysilicon can be sold 60-70 U.S. dollars, while a ton cement selling price, but it uses two power Baidu. we must take into account when developing policies for the environment as a whole, while the introduction of policy hastily, without considering the impact of the policy, which will produce many negative effects. ”
In addition, Tsinghua University researcher said that the Ministry of Commerce should restrict the export of polysilicon, but the production of polycrystalline silicon pollution is a sensitive issue, some say that the seriousness of the polysilicon production pollution, social media speculation soon followed, making this problem is gradually enlarge. Around me and some people, the majority of research staff that supports the development of solar energy is the attitude. Sony vgp-bps13a/b battery I think the management policy is intended to reduce the production of low-level duplicated construction of polysilicon, and the strengthening of government at all levels of upstream pollution management review photovoltaic and attention to attitude, just part of the problem should not involve the entire PV industry, while PV itself need an inclusive vision of science and the development environment.
According to the report, in 2009 China production of about 20,000 tonnes of polysilicon, and with the improvement of photovoltaic products, market share increased to meet the huge demand of about 40,000 tons, the China’s PV industry, polysilicon More than half of imports. Experts had predicted that by 2010 this situation will be renewed, or will reach 35 000 tons of polycrystalline silicon production can only meet half the demand. For now, good understanding of policy-oriented, socially responsible, the level of technology to improve the production process is to select a required course before entering the polysilicon industry. Sony vgp-bps13 battery Sony vgp-bps13/s battery