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Microbatteries Built on a Bed of Nails

Posted by CowboyNeal on from the all-charged-up dept.

nadamsieee writes "The good folks at IEEE Spectrum have a news brief about a newly invented method of creating microbatteries using an electrode that looks like a bed of nails. The method was created by a team led by Prof. Marc Madou of UC Irvine. IEEE Spectrum notes that 'according to the researchers, a battery using such an electrode can generate 78 percent more power than a stacked-plate microbattery of the same volume.'"

2 of 75 comments (clear)

  1. This is the same tech in all modern batteries. by rebeka+thomas · · Score: 3, Informative

    This is the same tech in all modern batteries. Increase surface area and you get more reaction. No different to heatsinks, it's been known for years.

    Nothing to see here, Move along.

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    RST
  2. No free lunch by Anonymous Coward · · Score: 3, Informative

    You get amp-hours based on the quantity of reactants that you have. What these guys have created is a way to discharge a small battery more quickly.

    OK so sometimes you do need a battery with a low internal resistance. Trying to use this for something like a hearing aid wouldn't help very much. If you could make a smaller battery, then it wouldn't last as long.