Tuesday, April 18, 2006

No steenkin’ batteries

MIT researchers have found a way to <A HREF="http://www.cio.com/archive/041506/tl_batteries.html?CID=20128">extend the working life of mobile computers</A> by drawing power from ultracapacitors rather than batteries. Ultracapacitors are still three to five years away from becoming the main power source for laptops and handhelds, although they're already used for backup power in many small consumer products, according to Joel Schindall, a professor in MIT's Department of Electrical Engineering and Computer Science. The new device is called a nanotube-enhanced ultracapacitor, or NEU. Capacitors store energy as an electrical field, which is more efficient than standard batteries that generate energy from chemical reactions. Ultracapacitors are even more efficient. The drawback is size--they need to be larger than batteries to hold the same charge.

News Timeline



From Our Sponsor