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New technology to make cellphone batteries cheaper Battery Lithium-ion batteries, ubiquitous in devices ranging from cell phones to laptop computers and electric cars, may soon have a cheaper and sustainable alternative as researchers have shown that potassium can work with graphite in a potassium-ion battery. http://bit.ly/1L2ZPLn http://www.uitvconnect.com/newspaper/new-technology-make-cellphone-batteries-cheaper
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