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Assistant professor Yi Cui at Stanford University’s Department of Materials Science and Engineering developed a new technique to make lithium ion batters last nearly 10x their normal amount. Lithium Ion batteries are used in laptops, iPods, digital cameras, and even mobile phones. This means a laptop battery that normally lasts 4 hours, would last 40. This also means that all of those low power processor chips that seem to be coming out everyday can step it up a notch and not have to worry about eating up the battery life.
“It’s not a small improvement,” Cui said. “It’s a revolutionary development.”
These new batteries would differ from the old ones because they will use silicone nano wires.
“Increased battery capacity was made possible though a new type of anode that utilizes silicon nanowires. Traditional lithium ion batteries use graphite as the anode. This limits the amount of lithium–which holds the charge–that can be held in the anode, and it therefore limits battery life. ” (Nature Nanotechnology)
Cui has filed for a patent, but says that the batteries shouldn’t be expected to be commercialized for several years, pending testing.
Read more about Yi Cui or the Department of Materials and Science Engineering
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