SunPower Group possesses high-purity silicon purification technology
Thread Content
According to a report from Business News on July 1, Yingli Group, a major domestic photovoltaic enterprise, has successfully mastered the technology for purifying high-purity silicon. The first phase of this project is set to go into operation before National Day, with the goal of producing 18,000 tons of high-purity silicon per year. Q- f. P- P! B+ U. The Yingli Group began bringing in high-tech talents from around the world as early as 2007 to develop processes for purifying high-purity silicon. The first phase of the 3,000-ton-per-year high-purity silicon production project at 69 Silicon Industry, invested in by this group, will go into operation officially before National Day. 0 It is said that the basic principle of this process is to use aluminum, sodium, and hydrogen to produce sodium aluminum hydride in a sodium aluminum hydride reactor; thereafter, silane is generated in a silane reactor. After the silane is purified, polycrystalline silicon is produced in a polycrystalline silicon reactor. There are three types of “recycling” in this process: hydrogen recycling, silane recycling, and recycling of sodium aluminum fluoride, which is a by-product of silane. A fully closed-loop purification process generates no pollution emissions; it produces only two substances: polysilicon and the chemical raw material sulfate. The purity of polysilicon can reach 99.9999999%, commonly referred to as 9 nines. In fact, a purity of 6 nines is sufficient to meet the requirements for manufacturing solar cells. It is estimated that the application of this core technology will reduce total costs by 30%, helping companies gain a competitive edge in the market. Zhao Yuwen, director of the Photovoltaic Committee of the Chinese Society for Renewable Energy, said that Yingli Group was the first in China to master the high-purity silicon purification technology, breaking the foreign monopoly. This has enabled China’s photovoltaic industry to have a truly complete industrial chain that spans from silicon material production, wafer slicing, cell manufacturing, module production to system installation, which will greatly reduce production costs and help the industry gain a foothold in the international market. , R8
It’s not too late to talk about it once it’s done; China has plenty of words right now, but little in the way of action.
The CEO of Yingli said his polysilicon cost is less than $30; it’s unclear whether that can be achieved.
The silane method is currently only available in the laboratory; I hope Yingli can bring it to industrial application! Support!
The silane method is not just a laboratory technique abroad, at least... It depends on how Yingli managed to introduce it.........
I have no idea what the progress is at the moment
As far as I know, 69 Silicon Industry will not be able to start operations during the National Day holiday, and it’s likely to remain in that situation until the end of the year
It seems that there’s more boasting in China, probably in an attempt to gain some policy benefits or political advantages. Hehe; I still hope that Chinese companies will focus more on practical results and less on exaggeration, so that the relevant authorities won’t be left wondering who is telling the truth and who isn’t. The above are my personal views; there are certainly aspects where my understanding may be flawed.
Could everyone talk about battery efficiency? ? ?
The largest one in China now is probably China Energy, right?