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.
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 upOne 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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