Nano material for ultracapacitors
7 of 8 from Looking for a clean-energy home run (photos)
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One company working on storage that has received a DOE research grant is FastCap Systems, another spin-out from the Massachusetts Institute of Technology.
Rather than seek to improve batteries for energy storage, FastCap Systems and other companies are working on ultracapacitors. These storage devices can't hold as much electrical energy as batteries, but they are able to rapidly discharge and they last longer than chemical batteries. FastCap Systems' design uses a "shag carpet" of nanotubes to store energy placed on top of a conductive substrate.
March 4, 2010 11:15 AM PST
Photo by: MIT
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