The battery analysis of solar energy of raw material

0The news of April 30,6, high pure degree many Jing silicon, it is not only to produce the necessary material needed by solar cell , is also to apply to to make the important basic material of semiconductor silicon integrated circuit and device , is important for developing the message electronic industry and light of our country to bend over industry. Silicon integrated circuit and device are world produces per year value to reach Wan core and the trunk of the information industry of 100 million dollars, it is the commanding elevation of contemporary high technology , is the important sign of a national modern level.
Solar energy is a kind of inexhaustible, very important clean energy , solar energy generates electricity to have the wide major raw material that develops prospect and makes solar cell , is silicon material.2005The annual high pure degree24%, the gap of97%, the light that the
2005In year, the encapsulation400Sign tile, many Jing silicon ingot200300Sign tile between, the only entire12Sign tile. The light of our country bends over industry have been faced with serious silicon material scarce crisis. Present light bends over industry store work have relied on foreign market completely, get system in person.

Our country does not grasp refinement to make97%High pure degree silicon material needs import. Our country bends over industrial industrial chain solely to present the phenomenon of big first little end , this has become the message electronic industrial light of our country and of solar energy to bend over the bottleneck of industrial development.
World semiconductor many Jing the production90%Above.2005Year, our country for3800Ton and3650Ton. It is quick that
Our country now has1260The production of ton high300The silicon material production50Sign tile solar2020Annual light

According2010Annual high pure5000Ton. Since many Jing silicon production technology has special monopoly, world goes up grasp many Jing the country of silicon technology has prohibited jointly to carry out technical transfer to our country. So, the author thinks that government should make policy as soon as possible, construction at least two large scale high pure degrees many Jing silicon manufacturer, make the high pure degree of our country many Jing silicon produces per year quantity, when "115" last stage reaches5000Ton. Relevant national sectors should organize the domestic strength of science and technology of silicon industrial production , and absorbs other profession strengthes , tackles key problems as soon as possible for crucial technical organization focal point, solution our country many Jing the silicon bottleneck of supply chain.
Since international market many Jing silicon is in short supply , is recent, domestic emerges a big go up many Jing the upsurge of silicon project, except Sichuan and Henan etc. when build many besides Jing silicon project, Jiangsu, Qinghai, Shaanxi and Inner Mongolia etc. also have intention investment construction respectively. Aim at specially to low purity , low cost many Jing the technical development of silicon aspect also some tentative ideas, but the technical scheme that has not still ripened relatively. So, government should play the part of guide role in the aspect of industrial development and investment.

0The news ofIn many years, Li Yan Ren that has dealings with silicon material is very clear, many Jing silicon is the most crucial product of silicon material application field, being international market drop behind demand is in short supply goods, sheet is that Chinese domestic annual demand reaches3000Many2005Year whole country500Remain ton, mostly produce

" as yet virtue,1000Ton have8Chengdu is import. " Li Yan Ren20U.S./Kg rise has100U.S./Kg.

To do minerals processing and the best choice, it is to

" domestic10A province thinks of this project , but mostly halts because silicon mine resource is deficient. This aspect, the advantage of Yunnan apparently, the present silicon reserves that Yunnan whole province has ascertained rank nation-wide the first place, it is only clear that the high quality silicon mine reserves of coherent region exceed20100 million tons has not suited more

It is not only that the mine climate condition with rich source and superior Yunnan has gotten the approval of Li Yan Ren also: " the silicon material requirement of producing for temperature is very strict, as refinement many Jing the 3 chlorine hydrogen silicons of raw material of silicon exceeds31.8CWill melt , in38CArrive39C, is improper for to produce30YiCFollowing, suit

Produce1In year, it

Opportunity, favourable terrain and popular support, Li Yan Ren tape goes to the investment project of Yunnan have gotten the approval of investment side eventually - - - Yunnan perseverance the prosperous development of real estate operation limited company decision draws out23The development

Now, this project already quilt song Jing municipal government lists as " the project No. 1 of this year ", song Jing municipal government expression, serve the smooth propulsion with the service troops that organizes 100 near persons of project. " this project first phase according to 1000 tons of level produce can design , estimate next year8Month may be formally500Ton. Say simplely, then only Yunnan produce can can reach4Year then can1In year, half time may be completed , is

0The news of"Want not do, make the best"Ning summer 1000 tons of: "Our plan is300The testing line1000Ton expands4000Ton produce"
Above-mentioned2008Year, Ning summer stone mouth mountainMEMCWait for the
However,"It is"Face fund directly in project now and technology two big bottles Jing. Though Wuxi yet Germany and day Wei many domestic manufacturers of solar energy such as Britain sharp as well as south glass as well as some fields foreign capital expresses interest"But at the moment,"The Russian technology of transfer
According to the above-mentioned35It may realize the contract18100 million4.8100 million13.6%, invest18.74%, investing7.35In year, is higher
銆€銆€2006Year1Month20Japan, Ning the summer eastern group company's flag of nonferrous metal the next east of stock company Tan the field clock scene of chairman of the board clear show in Shenzhen, Wuxi yet virtue as Ning summer many Jing silicon project has strong interest, besides, the enterprise that is contacting still includes capital in 3 or 4 company. Now, under the condition that foreign investor has not determined , some works of early stage are also taking place successively.
銆€銆€"Early300Ton5The input1000Ton needs12100 million Yuan. Except Wuxi yet virtue has signed related intention agreement with us outside, expression invests in intention still have day Wei many domestic companies such as Britain sharp, south glass, as well as it is somewhat smooth to bend over the capital of industrial chain periphery."Above-mentioned: "But at the moment,"
He adds: "Additionally, even technology"

Information2005Always,2.610 thousand tons,310 thousand4000Ton. The solar2005Produce80Many tons and3800Ton, in which,2691Ton, therefore plenty
According to joint bond2004Year, have also expected60% had
According to introduction, many Jing silicon comes with the metallurgical level silicon refinement of lower silicon purity, it is the present production methods of mainstream to improve Siemens law, adopt this method production many Jing silicon contract takes many Jing silicon global total output85%. But the key technology7Domestic major silicon material90%, the enterprise alliance
Is hard to break through because of technical rampart, our country many Jing silicon production technology and international advanced level compare have great gap, the existent output in production process is little , technology the backward high, resource low etc. problem of energy consumption of utilization ratio always could not had been overcome efficiently.
What it has lessons drawn(Following).
New smooth silicon field2001Year begins to build domestic first strip 1000 tons of level many Jing silicon production line. However, the time of 5 years has passed , this project completion time delays again and again , could not reach so far to produce to reach effect.

The new crucial part of smooth silicon field production equipment is also purchased from Russia. Therefore the integrations of equipment and process need a process and more haste, less speed. The horse on oneness1260The production line of ton, make technology and equipment have lost ample integration time. It is clear to have not even done manufacturing engineering completely, it is not at all surprising that this project could not be completed so far.

However, reporter knows , in day Wei after become new smooth silicon field second big shareholder, the construction of production line has been mentioned completely quickly. Company is from financial resources and manpower goes up have increased technology to tackle key problems intensity, equipment and process when step up to debug , estimated entire project will2007Is completed

Luo the silicon high-tech limited company2003Year1Month the company that sets up , from Luo the positive silicon limited responsibility company of single crystal , Luo the colored project design research of positive golden plentiful investment limited company and China total courtyard invests construction together. It produces per year300Ton many2005Year8Establish700Ton many Jing2006Year1Month1Start building2007Go into operation3000Ton expands to

What deserve to be noticed is300Ton project now has not yet formed to produce efficiently can, produce per month quantity however 4 or 5 tons. He says: " now Luo the product of silicon in sun is not good on quality, do not say semiconductor level , also force very much even the standard that reaches solar energy level. Luo in the positive silicon of single crystal does not adopt the product of silicon, their raw material major is to foreign countries manufacturer buying. "

Should take the responsibility for person, produce can little have not yet integrated completely mainly because majority produce equipment, current situation adjusts part to go into operation part. And the reason that causes product quality to close however is that have defect on technology. When transfer Russian technology adds the process of autonomous research and development, Luo the silicon in sun have not can will collect the key technology thorough grasps such as 3 chlorine hydrogen silicons, product has flaw unavoidably.

It is run high also increasingly that now, Hubei Yichang and Jiangxi install the places such as source to build the voice of silicon industrial base. According to the report, the 1000 tons of level of Liaoning Ling Hai many Jing silicon project has obtained Liaoning province approval, is being in to recruit business stage

0The viewpoint of FebruaryThe rate of gross profit will reduce ,2006YearHSC,SGSAndWPUntil international big factory expands

0The news ofSilicon sand purifies the technical content needed till synthetic crystal silicon is very high, domestic many Jing silicon demand relies on import. Now , there are only the countries such as Germany, Japan and Sweden that have ability to produce the silicon crystal needed by the battery of solar energy in whole world2005The annual solar energy60Many tons and3800Ton in which2691Ton, plenty of many Jing silicon needs import. Is far lower than the price of international market because of the domestic battery price of solar energy, foreign manufacturer for the battery manufacturer business of solar energy of control China, decrease constantly many Jing the supply quantity of silicon. The source of silicon chip becomes the light of solar energy to bend over industry the bottleneck that been encountering.

0The news ofChina bends over industry solely, have a famous phenomenon " both ends when outside": The raw material more than ninety percent relies on import, the product export more than ninety percent. Wuxi yet virtue and Taiwan Mao Di two enterprises are the first big production enterprise Germany of silicon chipSolarWorldActing workSolarWorldPlace purchases siliconSolarWorld. Day Wei90%Product export Europe,

Superficial reason is that the battery cost of solar energy does not be suitable for domestic extensive application high, temporarily. And cause this phenomenon direct reason to lie in raw material to receive to control.

The present mainstream light on market bends over product is the crystal silicon battery of solar energy, it is also the product with the most extensive application, its raw material is high pure degree silicon. Each production1Sign tile17Ton high

Silicon is the chemical element with second reserves on the earth, as semiconductor material, people study for it at most , technology most ripens , also Jing silicon performance stabilizes and has no poison, therefore become the main material in the production and application and research and development of solar cell. But high pure degree many Jing silicon very much lacks in our country, the most of unique needs rely on import.

High pure degree silicon is drawn in quartz , is taking the silicon of single crystal as example, refinement will pass following process: The quartz sand a metallurgical level silicon a a sediment that purify and refine many Jing the silicon ingot-shaped tablet a silicon a silicon chip of single crystal cuts.

The refinement of metallurgical level silicon is easy. Its preparation is to become in the stove of electric arc with carbon reduction quartz sand mainly. So, have been restored the purity contract of the silicon that comes out98-99%, but semiconductor industrial10-10%Following. Is in the process(Siemens)" crucial technical our country70%Above many Jing silicon passes through

When2004Year10At middle of the month, the country renewable energy office of development project makes " Chinese light bends over industrial research report ", for domestic solar level many Jing the description of silicon is " the light of our country bends over production and the R%26D of the solar level silicon material special is blank ".

According to2005Year our country3800Ton in which2691Ton,2004Year our country60Ton, even if supplying2.6%, others can

International market many Jing silicon drops2004Always,24 thousandTon, global26.201Ton has2000The market gap of ton. Cause product price13U.S. dollar46U.S.2005Year has80U.S. dollar

In fact, our country draws1The price of U.S. dollar / kg exports the countries46-80The price of U.S. dollar