New plastic solar cell conversion efficiency to create a world record
Wake Forest scientists at the University of the latest research results laptop battery, enabling mankind to find solutions to the energy issues a big step, the school Nanotechnology and Molecular Materials Center, scientists will be the efficiency of plastic solar cells increased to more than 6%.
In the latest issue of "Applied Physics Letters" (Applied Physics Letters) will be published article, scientists describe how they achieve this record-breaking efficiency. Leaves by using a similar optical absorption lines of the plastic, they are made of nano-filaments. The Panel applied in sony battery and fujitsu battery thicker absorption layer, which can capture more sunlight.
As the price low, and very light, so efficient plastic solar cells are extremely desirable, especially when compared to traditional silicon solar cells. Traditional batteries are heavy and bulky, and can only receive 12% of light into electrical energy. Over the years scientists have been looking for curly, covering the flexible organic solar cells.
In 2005 years ago, plastic solar cells with maximum efficiency is only 3%, while after the Wake Forest nanotechnology center director David Carroll announced that they will increase that figure to 5%. Then about a year later, Carroll said his team vgp-bps2a beyond the 6% mark.
Carroll said: "In two years, we have to make efficiency more than doubled. I look forward to the next two years to achieve greater efficiency, make plastic devices to become truly one of the options." In order to achieve commercialization requirements, must have at least 8% of solar energy into electricity. Wake Forest University team hope the next year to 10% efficiency.
As the folding, so plastic solar cells can replace roofing materials, and integrated into the wall. They also can be used in automotive vgp-bps2b, plastics batteries lighter, so no additional support equipment.
Environmental protection, and lasting into the new direction for the development of laptop battery
As people use the mobile office increasing demands for notebook computers is also increasing performance requirements. Laptop compared to desktop computers, its advantage lies in its portability and mobility. If you give up the battery while the sounding name of "mobile PC", are laptop not to vgp-bps2c disappear it? The mainstream of development from the notebook of view, is essential for the development of battery technology, and has become extremely important.
Now, the real limit is not the biggest factor in the development of notebook hardware configuration, but rather a continuous battery-powered time and environmental problems. Intel Corporation Commissioner, has said with emotion, "10 there are 9 users of laptop battery power for less than continuing to require a longer battery can supply the user's mobile usage time. While the chips, memory, and even displays the speed of technological development has been greatly advance the development of vgp-bpl2c battery technology. "From this it can be seen, batteries for notebook computers for this product has a very important role in the characterization.
Laptop battery experienced a nickel-cadmium era, the era nickel-metal hydride, lithium-ion Age, although the laptop battery technology to a certain extent of development, various types of notebook batteries when used in 2 ~ 4 hours long, but from the fundamental or does not solve the problem. If you just rely on increasing the capacity of the battery to increase battery life. Under the conditions of the existing technology can only increase the size and weight of the battery itself. If the photos to do so, can not be an existing ultra-thin notebooks, ultra-light design concepts accepted, nor will it be acceptable to consumers. Thus, the major notebook manufacturers in the brain power thinking about how to solve the laptop vgp-bps8 battery's "environmental protection, enduring" problem.
As early as 1839, the British W? Grove put forward the principle of hydrogen and oxygen reaction to generate electricity, in fact, this is the first hydrogen - oxygen fuel cells. It was not until the 20th century, the early 60s, due to space and defense needs, it has developed a small liquid hydrogen and liquid oxygen fuel cells used in space flight and submarines in the area. The development of recent decades, due to the scarcity of primary energy and environmental protection of the outstanding demands of mankind must develop the use of new clean renewable energy sources to compensate for resource scarcity and pollution problems. Because of the fuel cell energy conversion efficiency vgp-bpl8, less pollution to environment and other advantages have attracted universal attention.
U.S. fossil energy assistant g? Siegel said: "The fuel cell technology in the 21st century in the first half of the impact of technology will be similar to the first half of the 20th century, the role played by internal combustion engines." PNGV managers in charge of Ford Motor Company Bob? Merle said, "fuel-cell powered cars will definitely bring about a revolution, both at the same time the fuel cell is the only non-polluting, efficient, widely applicable, no noise, and with continuous work and the building blocks of the power vgp-bps9, VGP-AC19V13 plant. "
Both the non-polluting fuel cells, high efficiency, wide application, no noise and have the advantages of continuous operation. And fuel cell work is only water and heat as by-products, no pollution, high efficiency, is a clean and environmentally friendly power. Compared to commonly used lithium batteries and polymer lithium battery should be clean, environmentally friendly. And the fuel cell has a higher energy density, in the capacity of the same circumstances, to do a smaller battery, or battery size and weight of the same lifebook t4010 battery circumstances, the battery capacity to do more!
In the alternative to lithium batteries in portable devices, micro fuel cells is in progress. In the field of fuel cells, the majority of leading Japanese companies. Such as the global consumer electronics giants Hitachi, NEC and Toshiba and other companies in the field of micro fuel cells has been in a leading position. In the United States, MTI Micro Fuel Cells, Medis Technologies, and a few other companies are also actively developing miniature fuel cells. These companies play to its existing industrial advantages, is in production to the first generation of commercial micro fuel cell for power supply special equipment. They are in the development of smaller, lighter, more abundant and more reliable power supply lifebook t4020 battery for micro fuel cells has been achieved fruitful results. (# Page #)
The latest fuel cell prototype NEC average output power of 14W, maximum output power of 24W, voltage of 12V, the battery's total weight is 900 grams, which weight of 300 grams of fuel. The external dimensions of the fuel cell 270 × 270 × 40mm. When the fuel concentration of about 10% of the 300 cubic centimeters of methanol, the notebook can run about 5 hours. Renowned Fujitsu Laboratories announced their research and development of fuel cells for notebook computers. Maximum power output of 15W, the use of 300ml of methanol solution as fuel, it can drive the company's notebook computer "FMV-BIBLO MG55E" up and running 8 to 10 hours.
However, fuel cells widely used in notebook computers also need to address some practical issues:
Costs are too high. At present, the fuel cell is used to generate hydrogen at low temperatures lifebook t4210 battery required for the cost of more expensive platinum catalyst, its power and lower density. Relative to the overall cost of lithium batteries can not be compared.
Refueling. Fuel cells and lithium batteries we use are used to the different fuel cell is not charging, and to sustain the supply of electricity, can only be used to add fuel (electrolyte) method, how to allow users easy access to these fuels, there is a certain degree of difficulty.
Startup time. Preheat the fuel cell needs a time to meet our power requirements.
Output of the problem. Fuel cells in the course of it does not provide a very stable output FPCBP155 fujitsu battery in the middle of a stage will also be drastic decline.
It is evident from the fuel cell you want in a notebook computer is widely used still need further research and development, but we believe the prospects for fuel cells is very bright, as a low pollution, high energy density, which gives laptop the computer's battery can be added for the ability to depict a beautiful future. At present the efforts of companies, fuel cell applications in the notebook computer technology has been rapidly improved. I believe that in the next few years is expected to product-oriented, practical use. At present the industry's generally agreed that the early fuel cell generally able to provide 6 to 8 hours of power time, as the technology matures, to achieve longer periods of time is just round laptop battery the corner.
