_See also:_ REFERENCE The new version, developed through research led by Yi Cui, assistant professor of materials information viagra science and engineering, produces 10 times the amount of electricity of existing lithium-ion, known as Li-ion, batteries viagra drug store .Laptop that now runs on battery discount sale viagra for two hours could operate for 20 hours, a boon to ocean-hopping business travelers."It's not a small improvement," Cui said.A revolutionary development.The greatly expanded storage capacity could make Li-ion batteries attractive to electric car manufacturers.Suggested that they could also be used in homes or offices to store electricity generated by rooftop solar panels."Given the mature infrastructure behind silicon free sample ship viagra , this new technology can be pushed to real life does viagra woman work quickly woman taking viagra ," Cui said.The electrical storage capacity of a Li-ion battery is limited by how much link medication prescription viagra zdd lithium can be held in the battery's anode, which is typically made of carbon.A much higher capacity than carbon, but also has a drawback.Placed in a battery swells as it absorbs positively charged lithium atoms during charging, then shrinks during use (i.When playing your iPod herbal viagra viewattachedhtml ) as the lithium is drawn out of the silicon.Cycle typically causes the silicon (often in the form of particles or a thin film) to pulverize, degrading the performance of the battery.Cui's battery gets around this problem with nanotechnology.Lithium is stored in a forest of tiny silicon nanowires, each with a diameter one-thousandth the thickness of a sheet of paper.Nanowires inflate four times their normal size as they soak up lithium.Unlike other silicon shapes, they do not fracture.Research on silicon in batteries began three decades ago.Chan, a graduate student of Cui, explained: "The people kind of gave up on it because the capacity wasn't high enough viagra prescription and the cycle life wasn't good enough.It was just because of the shape they were using.Was just too big, and they couldn't undergo the volume changes.Then, along came viagra prescription online scams silicon nanowires.Just kind of put them together," Chan said.For their experiments, Chan grew the nanowires on a stainless purchase viagra steel substrate, providing an excellent electrical connection.Was a fantastic moment when Candace told me it was working," Cui said.Cui said that a patent application has been filed.Is considering formation of apany or an agreement with a battery manufacturer.Nanowire batteries would require "one or two different steps, but the process can certainly be scaled up," he added.A well understood process.The breakthrough is described in detail in a paper, "High-performance lithium battery anodes using silicon nanowires," published viagra online shop online Dec.In Nature Nanotechnology, written by Cui, his graduate chemistry student Candace Chan and five others.Also contributing viagra pill to the paper in Nature Nanotechnology were Halin Peng and Robert A.Of Materials Science and Engineering at Stanford, Gao Liu of Lawrence Berkeley National Laboratory, and Kevin McIlwrath and Xiao Feng Zhang of the electron microscope division of Hitachi High Technologies in Pleasanton, Calif._Adapted from materials provided by _.Need to cite this story in your essay, paper, or report?One of the following formats: APA MLA viagra alternative and woman _Photos taken by a scanning electron microscope of silicon nanowires before (left) and after (right) absorbing lithium.Photos were taken at the same magnification.Courtesy Nature Nanotechnology)_ RELATED STORIES (Dec.2007) After recalls and fires involving Lithium-ion batteries, battery manufacturers and scientists have launched an intensive effort to improve the safety of these rechargeable power packs found in dozens .> (May 8, 2007) Scientists have developed a new approach to increasing the capacity and stability of rechargeable lithium-ion batteries.Technology is based on a new material for the positive electrode that is .> (Dec.1998) Research underway at Sandia National Laboratories to improve lithium ion battery materials may result discount viagra europe in smaller, longer-lasting batteries for applications as diverse as portableputers and .> (Aug.2006) Peter Bruce of the University of St.And team have devised a new and efficient way to improve battery power as well as make charge last longer by using lithium oxide intercalation materials..(Apr. Researchers can now predict how nanostructuring the extreme reduction of structure will affect the performance of Li-ion batteries.Nanostructuring of battery materials is likely to be .> _Number of stories in archives: 44,032_ _Find with keyword(s):_ Enter a keyword or phrase to search ScienceDaily's archives for related news topics, the latest news stories, reference articles, science videos, images, and books.JUST IN: By packing batteries with twice as much energy-storing material, engineers have developed a new generation of alkaline batteries that can double the.. _.From _ __ IN OTHER NEWS . __ _.From _ Get the latest science news with our free email newsletters, updated daily and weekly.View hourly updated newsfeeds in your RSS reader: FEEDBACK _.We want to hear from you!
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