MIT developing carbon nanotube ultracapacitors to replace batteries

Cambridge (MA) - Batteries provide power for most of our daily gadgets, but they are bulky and must be replaced often. Researchers at the Massachusetts Institute of Technology's Laboratory for Electromagnetic and Electronic Systems (LEES) are studying a new breed of ultracapacitors, which use carbon nanotubes (CNTs) to generate and store energy at the atomic level. Their goal is to make use of the unique properties of CNTs to produce batteries that are both longer-lasting and faster-charging.

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Carbon Nanotubes vertically lined up.

While this new technology is promising, MIT researchers have just begun their research. Also, we've noted the market price of CNTs remains far too expensive for the casual buyer. Although we did locate some high-quality nanotubes on eBay the other day...at $20,000 per kilogram.

Humphrey Cheung was a senior editor at Tom's Hardware, covering a range of topics on computing and consumer electronics. You can find more of his work in many major publications, including CNN and FOX, to name a few.