This article via: Researchers convert chemical in batteries
Researchers convert chemical in batteries
When traveling, the battery makes the phone slack and expected an urgent call good advice can often be expensive. How convenient it would be there when you could simply plug the phone in the jacket or the T-shirt and carry on? What sounds like a pipe dream, could become reality in a foreseeable future.
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Researchers at Stanford University have succeeded in transforming standard substances in batteries and supercapacitors, after they had previously tested with the technique of paper. The simple and inexpensive procedures in both cases is the same, and works with both natural and artificial fibers: The fabric is dipped into ink and then infused with nanoparticles just ten minutes at 120 degrees Celsius in an oven dried, finished the “Etextiles . The inclusion of the nanoparticles is favored here by the flexible and porous structure of the fibers. Depending on whether you’re a battery or supercapacitor wants to distinguish the composition of the ink. While needed for the former Lithiumcobaltdioxid (LiCoO2) will contain the ink for the latter single-walled carbon nanotubes. Although the ink has been black, but other colors are present in principle no problem - for the fashion component would be provided.
The energy density of the substance, the researchers estimate battery with 20 watt-hours per kilogram, about 300 grams, so that a heavy piece of cloth, which could roughly the weight of a T-shirt represents, already three times the energy of a cellular phone store the batteries. Even the resilience seems well ordered. According to team leader Hu Liangbing the fabric can stretch to more than double the length to be washed and immersed in various solvents. Also interested in the material, it should already be some. Besides the military, this will be of particular celebrities from the sporting goods industry. Interesting would be also a combination of transforms with the silicone rubber of her colleagues from Princeton, the motion into electricity.
Computer chips themselves are made up
One of the biggest problems in the further miniaturization of chip structures is the search for new manufacturing processes. Already, the wavelengths of light used for photolithography are larger than the structures that are produced on silicon wafers. As one possible solution is the self-assembly.
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Hydrogen fuel cell buses are expected next year, Sheung
“Eat” is hydrogen, “spit out” the pollution-free water. Reporter yesterday from the “2007 Third International Hydrogen Energy Forum” learned, the earliest the end of 2008, 3-6 hydrogen fuel cell buses will take to the streets carrying large, formally put into operation. It is learned that the first lines will be chosen International Auto City in Jiading.
Model to the international tender
Prior to, as “Pudong Science and Technology Festival,” one of the exhibition to promote the city’s first hydrogen fuel cell vehicles have been opened for free shuttle buses for the public to experience. Pre-empt the “satisfied” to reflect the passengers, in addition to energy-saving environmental protection outside the car more stable and are not routinely open the noise, more comfortable than ordinary buses.
New Energy Automobile Engineering Center, Tongji University, Yu Zhuo-ping told reporters, according to United Nations to set “China’s Fuel Cell Bus Commercial Demonstration”, Shanghai and Beijing as the two pilot cities will be under the protection of adequate funding to develop hydrogen fuel cell vehicles.
“In accordance with the phase one program running in Beijing, three hydrogen fuel cell buses have been successfully running three years, while the second phase will be in Shanghai to promote.” Ping Yu Zhuo revealed next month in Shanghai will start entry
Head international tender to select the best models around the world. It is learned that is likely to help out Tongji University, Shanghai Automotive Group to participate in the bidding. “The subject is expected to be able to control the 500 million or less, we have batteries, electrical aspects price advantage. But can it win the Shanghai edition of hydrogen fuel cell buses for delivery of power, yet can not promise.”
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Yu Zhuo-ping said that the streets were put into operation the first hydrogen fuel cell buses have at least three, scheduled for late 2008 or early 2009. “But in our fight to achieve 6 to meet the needs of more people.”
However, the reporter learned that the time being, it has no downtown to enjoy this new bus-fu, the first line of operation will be selected at the International Automobile City in Jiading. This is mainly due to reasons of limited hydrogen refueling station. At present, Shanghai International Automobile City has only’s first hydrogen refueling station, hydrogen fuel cell bus you want to add energy, you must come here for.
Expo Area will add hydrogen station
However, Yu Zhuo-ping revealed that at present the relevant departments are planning in the city building a second hydrogen station locations are most likely to choose the district in Pudong Expo.
According to prior planning, including hydrogen fuel cells and other clean energy sources, including the tram will certainly enter the Expo. Yu Zhuo-ping told reporters in order to ensure its operations, at least acquire a hydrogen refueling station, and then again after another purchase in accordance with demand.
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