In the whole solar battery family, the non-crystalline thin silicon film solar battery is because of the advantages of its technology and application, getting explosively and increasing. 2007 trade speedup about 120%, it is estimated the average annual speedup is up to 100% in the following 3 years.
Once held the doubt to the non-crystalline thin silicon film solar battery before being in the industry, mainly in that its battery of conversion efficiency was lower (5% -9%) ,And decay very fast, the life time lasts definite 2-3 years. And with technical progress, the life time of hull cell of non-crystalline silicon of the mainstream has been already in above 10 years at present. This makes non-crystalline silicon hull cell become one of the hull cell technology favoured the most at present, from economy and technology in general, the non-crystalline thin silicon film solar battery has the following advantages:
Produce the low cost: The production cost of the monomeric non-crystalline thin silicon film solar battery can drop to 1.2 dollars / Wp at present. It can drop to laminate by every one non-crystalline silicon /under Wp.
One is short that energy returns: Conversion efficiency, for 6% the intersection of non-crystalline silicon and solar battery, it produce electricity consumption 1.9th electricity / tile, returning after it generated electricity, the time of the above-mentioned energy was only 1.5-2.
Suitable for producing in enormous quantities: Adopt the non-crystalline silicon solar battery of the glass substrate, its main process (PECVD) Produce with TFT-LCD array similarly, the mode of production has with high automaticity, with high production efficiency characteristics.
The high temperature behavior is good: When the operating temperature of the solar battery is higher than the temperature of standard measure by 25 ℃, its best output power will drop to some extent; It is much smaller than crystalline silicon solar battery that the non-crystalline silicon solar battery is influenced by temperature.
Weak photoresponse, charge with high efficiency: The absorption coefficient of the non-crystalline silicon material is within the range of whole visible light, there is better adaptation on low-light highlight in in-service use.
The above-mentioned unique technical superiority, make the membrane silicon cell have broad application prospect in the civil field, if the photovoltaic building integrates, large-scale low-cost generating stations, solar energy lighting sources.
Because the good prospect of the non-crystalline silicon hull cell, a great deal of enterprises including that Sharp, Q-Cells, Wuxi are still Germany,etc. are entering the solar battery field of non-crystalline thin silicon film on a large scale, the statistic of the whole trade is being renovated constantly.
In the Chinese market at present, the listed company related to non-crystalline silicon hull cell mainly includes: Can it opens up to be new in day, can protect ng, Zongyi Stocke Trading Co., Jiangxi share by martial prowers. Because the non-crystalline silicon trade demand is expanded rapidly, by purchasing the apparatus and launching the production of the non-crystalline silicon hull cell completely, can win high development brought in trade dilatation too certainly, but on long terms, after all only can share reasonable profit to get manufacturing industry, China such as Jiangxi can the hull cell of the share is OEM mode at present, it was the profit of manufacturing industry of the end in an industry chain that was obtained. And once the trade the large scale, the profit of the trade must be shifted to the critical bottleneck of the trade, in view of this, we have an optimistic view of and master key technical fittings manufacturer and apparatus provider even more.
According to the estimation by U.S.A. NanoMarkets, the electric energy production in 2015 of solar battery of the membrane will reach 26GW, the sales amount will exceed 20 billion dollars. The major cause for realizing growth includes, the popularization of different membrane solar batteries, and the appearing of the crystal silicon solar battery low cost, flexible of the mainstream, membrane solar battery apt to make than at present. This company estimates over half of electric energy production of the solar battery will come from the membrane solar battery 2015 years ago.
The membrane solar battery is because of the low cost, light and can be made on the flexible bottom panel, being welcomed in the field of house. It is estimated the market of membrane solar battery of the house would rise to 2,300 million dollars 2015 years ago.
According to kind, it is estimated CdTe (cadmium tellurium) The market of membrane solar battery will continue increasing, the sales amount of this market will reach 8,700 million dollars in 2015. CdTe semiconductor has the advantage that all absorption coefficient and great of band gap. In addition, this company introduces, the impact on environment that is afraid before this is waned too.
It has problems though CIS/CIGS solar battery is costly, makes the respect, still keep the obvious advantage in the field of membrane solar battery. NanoMarkets is expected, the sales amount of this market would be close to 5 billion dollars 2015 years ago.
The crude oil forward price that the commodity exchange house of New York delivers in August breaks through 145 dollars for every barrel on July 3, set a record. The week here, the average oil price in week of OPEC reaches a new high again too. In fact, during these days, oil price run high and a series of politico-economic social concern produced by this pain the automaker deeply. In U.S.A., the three automakers drop large-scale Picard, SUV in production one after another, increases the production of the energy-concerving and environment-protective compact car or mixing car. However, while changing existing product structure, automakers have already ” known fairly well ” : Must provide for a rainy day, but master but the alternative energy source car is technological.
“The battery is a key question. ” Does General Motors research and develop the material laboratory director Mark of the laboratory? Link Brack to represent. To already possessing the empirical mixed dynamic automobile of certain marketization success, battery technology becomes the key to this car of future destiny of the decision. It is reported in including Toyota general sharp Sri Lankan (parameter disposes the picture library), at present The style uses the nickel-hydrogen battery in the inner mixed dynamic automobile. And this kind of battery has certain limitation. Remove the price factor, on one hand, are determined to store the limiting of the magnitude of electric quantity by the material, the ability of continuing a journey of the nickel-hydrogen battery is insufficient, on the other hand, it is charged that it can’t be outside plug type either.
Lithium cell has voltage high, charges and discharges longe-livedly, fast and charges, such advantages as the self-discharge rate is low, the operating temperature range is wide, have already become choosing first and main direction of most cars and spare part enterprises. The materials reveal, compare in the nickel-hydrogen batteries, mix the electric automobile and adopt lithium cell to make the weight of the battery drop by 40%~50%, the volume is reduced by 20%~30%, energy efficiency is improved to a certain degree too. Optimistic prediction claim in the near future, drop to 2/3 of the nickel-hydrogen battery by automotive cost of lithium cell.
American scientist is researching and developing a kind of super battery, can charge for the mobile phone only needing to take 10 seconds, it is estimated that can accelerate for the motor vehicle at once, or charge for the portable computer within several minutes, and a new generation’s extremely light mobile phone of helpful development.
Present ferric phosphate lithium cell (LiFePO4) Can store a large amount of electricity, but the speed of releasing and drawing the electricity is very slow. So, the motor vehicle is better comparing with the time of accelerating in order to stabilize the characteristic when the expressway go of the speed, it takes several hours after using up to finish charging and the electricity of the battery. The question lies in lithium atom, these leads operation of electronic ions in the material of the battery very slowly, it takes a long time to reach the end of battery and convey the electricity.
These two scientists have thought out a solution, they invent a kind of ferric lithium phosphate to coat, son pushes Radix Paeoniae Alba to the tunnel, just like branch system. Ion can be moved to the end of battery through the tunnel entry rapidly.
They show, this method improves the ion flowrate greatly, in theory, the battery of mobile phone made of this method, can charge within 10 seconds; And charging type mix the big used battery of motor vehicle and can also be charged within 5 minutes, compared with present 6- 8 hour being much faster.
Different from other battery materials, after ferric phosphate lithium cell is charged repeatedly, will not wear out quickly either. So, this kind of battery does not need certain weight to convey the electricity, can be tinier and light and handy than other batteries.
The 2nd largest liquid crystal display (LCD) in the world Manufacturer LG DisplayCo.s announce on Tuesday, will invest 50 billion won (39 million dollars) ,Play half a production line to set up its membrane of solar batteries this year.
LG Display cheif technology officer Chung In-jae shows, because the company has already had a liquid crystal display of a thin-film transistor (TFT-LCD) Produce the line, so have the ability to expand to the solar battery manufacturing operations of membrane.
Predict, the solar battery market scale of the membrane can be by 4,600 million dollars in 2011 according to the research institution Nano Markets of the market, expand to 14 billion dollars by a wide margin by 2015.
Retail trader Digi-Key and industrial application energy-conserving solution supplier EnerSys of the electronic devices and components, announce both sides have signed a global distributorship agreement, Digi-Key will sell 2, 4 and 6 volts Cyclon battery of EnerSys. In level and line cope that these products will be listed in Digi-Key are recorded, it is the outloading and the global network of permeable Digi-Key stands.
Pure degree of the material is the key to supporting systematic efficiency of Cyclon battery. More long service life, represent less replacement and cost, combine higher reliability and drib systematic error, bring more low always holding the cost for a long time for the user or apparatus user. The reliable efficiency when the strong framework extends to extreme temperature, make Cyclon battery suitable for employing extensively, including the telecom, national defence facility, spaceflight, global positioning system, UPS (UPS) Apparatus, emergency illumination, medical equipment, computer backup, motor vehicle, solar energy apparatus, common electron, and horticulture apparatus.
Digi-Key interconnection, passive and electronic product executive vice president Jeff Shafer show: “We are very glad to join this and lead manufacturers in our reliable supplier’s partner, and enable Digi-Key customer to obtain the energy-conserving solution. ”
Though face the financial crisis, car battery trade is growing up fast. People paying close attention to the fact more that has already caused battery innovating and growth of the market to mixed dynamic automobile and electric automobile. Rely on the investment of large scale in research and development, Germany is that a global leader who becomes the field of this market has everything ready.
Fraunhofer magazine claims, this scale of subdividing the market of German China has already been up to about 900 million dollars, it is estimated by 2015, the scale of this market will be up to 10 billion - 15 billion dollars. German car trade is speeding up the development of this trend. The manufacturer of main car of Germany is making great efforts through battery- backed transportation solution for the multi-type: Plan to introduce mixed motive force and all-electric style of more than 10 fund before 2010 at present. Including Daimler (Daimler) , BMW (BMW) , Porsche (Porsche) , Audi (Audi) , the masses (Volkswagen) And Opel (Opel) New car.
The cooperation of this field has brought numerous possibility for international partnership relation and investment. For example, Daimler has already decided to purchase the California -based establishment enterprise Tesla’s car Company (Tesla Motors) 10% of the shares. This company will supply the battery for Daimler Smart car’s electronic edition. Smart car of edition will go into operation at the end of 2009 electronically. Daimler still forms the strategy alliance with German enterprises Evonik in order to advance the development of the lithium battery.
Move the strategy conference (National Strategy Conference for Electric Mobility) electronically as the country A part, the goal that the German federal government establishes recently is, let electric automobile and plug-in mixed dynamic automobile on the street of Germany reach 1 million 2020 years ago, this will let Germany become the global and leading market. In order to realize this goal, study from the battery and carry out to the market, they plan to offer support for every step development of this process.
