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October 25th, 2010
Batteries the Size of a Grain of Salt Enabled by Nanowires
Dexter Johnson: I have made clear my interest in seeing nanotechnology employed so as to improve the current state of batteries.
Let us make no mistake, nanotechnology, primarily in the form of nanofibers, is being used in batteries today. In fact it was estimated as far back 2005 that nearly 60% of batteries used nanofibers.
But what I am after, and I think your average consumer is looking for too, are rechargeable batteries for our portable devices that will last longer than a few hours (laptops) or a day or two (mobile phones and MP3 players), and instead will last weeks or months on a charge, and also significantly increase the number of times we can recharge those batteries without them progressively getting worse at holding that charge.
So I was intrigued by research funded by DARPA that looked as though it was pushing battery technology a bit further.
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