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Nanotechnology battery design gets boost from aligned carbon nanotubes

(Nanowerk News) Researchers at North Carolina State University have created a new flexible nano-scaffold for rechargeable lithium ion batteries that could help make cell phone and electric car batteries last longer.The research, published in Advanced Materials (“Aligned Carbon Nanotube-Silicon Sheets: A Novel Nano-architecture for Flexible Lithium Ion Battery Electrodes”), shows the potential of manufactured sheets of aligned carbon nanotubes coated with silicon, a material with a much higher energy storage capacity than the graphite composites typically used in lithium ion batteries.A sheet of aligned carbon nanotubes is rolled on a cylinder. (© Wiley-VCH Verlag)“Putting silicon into batteries can produce a huge increase in capacity—10 times greater,” said Dr. Philip Bradford, assistant professor of textile engineering, chemistry and science at NC State. “But adding silicon can also create 10 times the problems.”

Read more: http://www.nanowerk.com/news2/newsid=31721.php#ixzz2bG2rL4Ak
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