University of Illinois Develops High-Power Microbatteries

Researchers at the University of Illinois have developed new microbatteries only a few millimeters in size.

The batteries feature an internal three-dimensional microstructure that allows for significantly faster charging and discharging -- about to 1,000 times faster than conventional batteries, out performing even the best supercapacitors. The researchers see potential applicability in microelectronics.

http://www.news.illinois.edu/news/11/0321batteries_PaulBraun.html