Updated: 11/24/2005; 11:37:44 PM.

Nanoscale technology
Interesting tech developments in nanotech, nanostructured materials, etc.


daily link  Monday, October 14, 2002


Nano batteries: "In the first year of a five-year collaborative effort with three other institutions funded by a $5 million grant from the U.S. Office of Naval Research, the research is showing progress toward its goal of creating a three-dimensional, millimeter-sized battery – considerably smaller than the centimeter-sized hearing aid batteries that are the smallest batteries on the market today.  U Florida researchers have created both nano-anodes and nano-cathodes measured on the scale of billionths of a meter. They've shown in tests that these electrodes are as much as 100 times more powerful than traditional ones... Lithium-ion battery electrodes might sustain an average of 500 charges and discharges before wearing out .. , the nano-electrodes sustained as many as 1,400 charges. 

[Like] lithium-ion batteries, these batteries are made of composites of small particles. Their ability to produce power depends on lithium ions diffusing throughout these particles. While microscopic, the particles are large enough to be measured in microns, or millionths of a meter. The nano-battery approach seeks to replace these particles with particles measured in billionths of a meter, which would enhance power storage and production because the lithium ions would have less distance to travel as they diffuse. Micro-batteries also could power tiny pumps or presses in MEMS devices."

  9:35:07 PM  permalink  

 
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Copyright 2005 © Ken Novak.
Last update: 11/24/2005; 11:37:44 PM.