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četvrtak, 20.01.2011.

Battery open new world of big business

Battery open new world of big business

Started by selling batteries, environmentally friendly cars BYD famous old company recently embarked on. This is not just to sell mobile phone batteries, but the car battery.

The end of May, visit to Wolfsburg BYD chairman Wang and VW chairman Winterkorn (MartinWinterkorn) signed a joint development of electric vehicles on the memorandum of cooperation in preparation for hybrid and the the field of lithium battery powered electric vehicles explore opportunities for cooperation. But the two sides signed a formal agreement did not give a specific timetable.

As early as 1 month period before the Shanghai auto show, BYD Auto to let the public co-operation with the wind. At that time, the Volkswagen Group Chairman Winterkorn told the media openly expressed in the cell area with the BYD cooperation. "If their technology is very good, we can also consider the cooperation with BYD." Winterkorn at the beginning of this year's Detroit auto show, BYD booth had come to watch the display of pure electric cars BYD E6, dual-mode electric vehicle F3DM and F6DM.

"Volkswagen will unswervingly continue to promote the BlueMotion technology series, while hybrid and electric vehicles will become increasingly important role." Director of business development of the Volkswagen brand board member, said Hackenberg, for the Chinese market, as BYD such potential partners for the public to support the rapid expansion of the car.

In fact, the battery started to rely on OEM BYD to do, at this juncture to use their patented technology and manufacturing capacity to conduct vehicle battery production and sales business is not difficult to predict.

In the past 2008 years, the young Chinese car manufacturer BYD can be used for car drivers, with its patented battery was "Warren" Buffett's favor and fame, and robbed before General Motors introduced the world's first dual-mode electric vehicle models F3DM, let the car industry with admiration.

However, the mere size and strength of the current BYD, to lead in the short range of electric vehicles in the world, large-scale commercial, set up less than 6 years of this small car manufacturers apparently powerless. Huge potential of electric vehicles, but unfortunately, the new product also can not bring the book on its immediate profit.

The impact of the economic downturn, the BYD financing and profitability are significant recession. BYD's 2008 earnings data, by the mobile phone battery business slowdown and poor profitability of automotive business, BYD made last year, although nearly 26.8 billion yuan of revenue, annual growth rate of 26.3%, However, profitability has declined, after-tax earnings decreased 36.6% year on year, only 1.021 billion yuan, profit the last 3 years, the worst year.

BYD, which makes listed companies have to actively look for a new profit point. 1 month ago, BYD hopes to open to the outside world the field of automotive batteries, as battery suppliers to cooperate with the wishes of other brands. BYD spokesman Wang Jun has said publicly that the current control of the nickel batteries BYD 60% of the global market and 30% of the global lithium battery market, like the field of electric vehicles can be a leader, "so the other brands partners, we are holding an open attitude. "

Volkswagen is the most interested in its strong car battery car manufacturers. In addition, Wang's trip to Europe by the end of May also visited other European car manufacturers, Volkswagen talks exactly the same content: the promotion of their vehicle lithium iron phosphate batteries.

Widely accepted as the electric car, manufacturing and sales of automotive battery business will likely help BYD strong capital accumulation and brand strength. By that time, BYD may be in the vehicle market, with Volkswagen a rival. But at least now, the cooperation of the two sides still looks natural fit.

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petak, 14.01.2011.

Multi-junction solar cell

Multi-junction solar cell

7 to 9 and July last year, in Freiburg, Germany (Freiburg) the Fraunhofer Institute for Solar Energy Systems (Europe's largest research center Fraunhofer-Gesellschaft 80 research institutes, one short FhG-ISE), the European record of solar cells increased by the 37.6% to 39.7%, after several efforts, and finally multi-junction solar cells a new world record - more than the U.S. Department of Energy Renewable Energy Laboratory (Department of Energy's National Renewable Energy Laboratory) 40.8% before.

Such a high efficiency multi-junction solar cell is mainly used to focus on photovoltaic systems (concentrating photovoltaic, referred to as CPV), direct conversion of sunlight as the sun, the source of power throughout the town. Will focus sunlight on a small (5mm) multi-junction solar cells, in solar energy equivalent to 454 can achieve 41.1% conversion efficiency, even in the higher energy 880 is still under solar irradiation measured 40.4%, the battery can be a wide use of sunlight intensity, and with more than 40% conversion efficiency.

Like the battery before the FhG-ISE, the new battery still use the deformation of the extension of the three junction structure and the lattice mismatch Ga0.35In0.65P/Ga0.83In0.17As / Ge (gallium indium phosphide and gallium indium arsenide deposited on Ge) layer structure. Compared with conventional solar cells, separation of the semiconductor material and there are no same lattice constant, we can only use the extension to combine the two layers of distortion, it is difficult to obtain high quality film, the other because of different between the two materials The lattice constant, combined prone to stress, resulting inserted row or other lattice defects.

By Frank, Dr. (Frank Dimroth) led group III-V Epitaxy and Solar Cells group, FhG-ISE to overcome the above difficulties and deficiencies limited to the electronic non-active zone, while the active area is relatively free of defects retained, which is to indispensable to achieve high conversion efficiency factor. "This is a good example and tell us how to use technological breakthroughs to control the crystallization of the semiconductor defects" Fraunhofer ISE's President Ike Weber (Eicke R. Weber), Dr. mentioned.

Multi-junction solar cell can be used in a variety of deformation of the extension group III-V compound semiconductors, the high efficiency of the battery structure formed by the appropriate materials can be divided into three bands of sunlight were to absorb. Researchers suggest that this is an important conclusion is that using a series of material connected to form the solar cell, its components will be the current minimum current that part to the limitations of the use of deformed extension of the battery Ga0.35In0.65P / Ga0.83In0.17As/Ge, can make the current matching, the complete output (multi-junction cell structure are produced close to three times the current of the battery), this is the battery can achieve high conversion efficiency of the important reasons.

Last year by the Fraunhofer ISE 37.6% conversion efficiency will be increased to 39.7% by adjusting the front-end structure of the metal thin wire has a lower contact resistance can pass large currents, therefore more suitable for concentrated solar constant of 300 ~ 600. Frank mentioned that the latest change in front of the metal thin battery is the graphics, and has a better quality film. In order for the technology and existing technology as a competitive, fast and feasible, Fraunhofer ISE in Germany Heilbronn (Heilbronn) of the Azur Space co-operation and technology transfer, also in Freiburg Concentrix Solar GmbH. "And the other focusing photovoltaic systems, our high efficiency solar cells is the most efficient way to reduce the cost of electricity" Fraunhofer ISE's Director, Dr Andrew Bate (Andreas Bett) mentioned. Fraunhofer ISE With the new battery to the goal of high conversion efficiency, a major step forward, and soon, the cost of photovoltaic power generation can compete with traditional power.

Dr Frank by changing the cell structure that will help make this type of battery has a long-term advantage, and to improve efficiency to 42 ~ 43%. Over the past 15 years, researchers at Fraunhofer ISE is committed to III-V family of multi-junction solar cell used in photovoltaic systems research focus from the beginning of the German Federal Ministry of Education (German Federal Ministry of Education and Research, referred to as the BMBF) for support Now while the German Federal Environment, Nature Conservation cum Nuclear Security Administration, Intelligent Energy Bureau (German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, called BMU) to provide financial aid, scholarships for doctoral students, the future will be faster and better results to share with the world.

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četvrtak, 13.01.2011.

Sony a (alpha) DSLR-A350 Camera Review, via digitalcamerabattery.us blog

Sony a (alpha) DSLR-A350 Camera Review, via digitalcamerabattery.us blog

Sony plans to aggressively attack the market with a number of new DSLR SLR cameras is no secret. We had the opportunity to get their hands on the new Alfa 350 and Alfa 200s again. Here are our first impressions of this very close family, including Sonys interesting solution to the problem of prolonged exposure time cycle with Live View.

The Sony Alpha A350 offers new technology that makes images faster, easier and more familiar for users of digital SLR cameras for the first time. "According to the press release from Sony.

Note: Most of our findings are also applicable to the Sony Alpha DSLR-A300, also presented at the PMA and is essentially a version of 10-megapixel sensor of the Sony A350, with a lower price.

As for what Sony is promoting the main event of the Sony Alpha DSLR-A350 digital, including;

• Very high resolution 14.2 effective megapixels for beautiful images of the Convention detail, rich tones and bright colors


• Large LCD high-resolution 2.7-inch two-way leveling fire for freedom and comfort at different angles


• Quick AF Live View autofocus quick and accurate and responsive AF performance even with fast moving objects


• Improved in-camera Super SteadyShot to reduce vibration.

The Sony A350 features a new 14.2 megapixel sensor. There is a multiplier of 1.5 x focal length lens is used to obtain the equivalent field of view (FOV) in 35mm terms. Sony Alpha A350 SLR sweet with DT 18-70mm aperture-priority, that large JPEG, the size of 18 mm, 1 / 50 sec at f/5.6, ISO 200, WB Fluorescent central point cut from the lens.

The Alpha DSLR-A350 features a 14.2 megapixel CCD sensor, Live View, a vertical swivel screen, and like all Alpha DSLR-integrated sports anti-shake sensor offset establishments participating in the work aimed to set. Its just the house or as a kit with the lens Sony DT 18-70mm.

Interestingly, this is not the main sensor, Live View facilities includes, but integrates a secondary sensor in the viewfinder. Sony has broken the traditional Live View systems in the setting of additional sensor in the viewfinder with a tilt mechanism that directs the light is, either through traditional eye. The advantage is not related to the conventional AF in Live View-bypass, so that the autofocus-A350 as fast as you normally would, without interruption or noise.

Making life even more useful view is that a retractable screen can be tilted vertically to allow wide-angle high or low easily. The A350s screen can not turn the page, or turn on the face, but still a very flexible function.

Like all Alpha DSLRs, the sensor is located on the main platform for moving a mounted adjustable to compensate for camera shake. You do not see the effect on the viewer - or in Live View - but it gets to work with everyone who is going. This not only saves money, it means that you are the stabilization of the lenses that most manufacturers are not suitable as a benefit stabilization system as a standard 50 mm models.

Sony Alpha A350 Battery Grip Replacement - Product information

* Product Type : Battery Grip Replacement for Sony Alpha A300/Alpha A350/Alpha A200 DSLR cameras.

* The most attractive point is that the Alpha A350 Battery Grip Replacement can put in 2 pcs high capacity NP-FM500H Lithium Ion battery which allows 2500 shots in one full charge and makes it as a perfect product for professional photographers.

* The Sony Alpha A350 Battery Grip Replacement equipped with a vertical-grip shutter button, command dial, AE lock/FE lock, and AF point selector button to enable shooting in the same fashion as a horizontal grip.

* Order Sony Alpha A350 Battery Grip Replacement today: Full One year waranty and 30 days money back.

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srijeda, 05.01.2011.

Luis AG is planning electric SUV

Luis AG is planning electric SUV

The company Ahrensburg Luis AG had failed in September, a first production-ready electric car that the German car market to bring. The production of the small car was stopped after considerable quality defects were detected. The contract with the Chinese partner company was dissolved and moved the assembly to Ahrensburg. The approval of the compact car series failed, however, why the company founder Jan Luis now plans to launch an electric SUV.

The SUV is named Luis 4U Green and will be available in March. The purchase price for the electric version will cost to amount to 39 900 while the car with petrol engine is only about 19,000. According to the company to the series registration work this time. It remains to be seen whether the Luis AG will succeed this time with its planned electric car. Compared with the established car manufacturers, the company must still hold and become a well-known name.

Renault-Nissan alliance tried electric vehicles for Andalusia

The Renault-Nissan alliance plans with the community of Andalusia cooperation. In this partnership, the proliferation of electric vehicles in the region of southern Spain are encouraged. Both partners will ensure that their aspirations for an electric vehicle to the test. The first joint project to promote a "zero emission" vehicle it will be a pilot project in which to experiment and should be figured out how electric vehicles behave in relation to the range.

The aim is to determine the need for energy to drive the vehicle after the complete unloading again to make ready. More specifically, we extend the reach of new knowledge and thus increase the practicality of electric vehicles. Referring to the region of Andalusia are also ways of boosting in less populated areas to be investigated. First we will start in Malaga, such a test program for electric cars. The residents of Spanish Town as well as local authorities are to be integrated into the test procedure, they say. Likewise, we will make attempts in Barcelona, where, for example, creates financial incentives for the purchase of electric vehicles for government.

Renault is not only the world with several research sites very keen in the development and improvement of electric vehicles, particularly in Spain, you can rely on four production sites and a market share of 10.9 percent so far (relative to conventional gasoline and diesel vehicles). The Renault-Nissan Alliance has already signed agreements with several countries for the development of zero-emission cars and is planning mass production of electric vehicles from 2012.

Audi is E-Tron II before

The car manufacturer Audi AG has unveiled at the Detroit motor show with the E-Tron II, a smaller version of its electric sports car and E-Tron is a study. The vehicle is 3.94 meters long and can accommodate a maximum of two people. It provides the vehicle, according to developer Thomas herbs over "World Online" a refined chassis and a much slimmed body. The battery pack consisting of a series lithium-ion battery is located directly behind the seats. The Audi E-Tron II weighs just 1.35 tonnes and is a lightweight.

This is driven by two electric motors mounted with a total of 204 hp and accelerates the car within 6 seconds to 100 km / h. The top speed is 200 mph and a battery charge can be driven 250 kilometers. During braking energy is recovered and fed into the batteries. The batteries can be empty in a quick-charge fully charged in just two hours during the normal charge takes home whopping eleven hours. The E-Tron is to go into production, but whether the Executive Committee of the E-Tron II decision also will have to wait.

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