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Contorting Batteries: Charging Makes Nano-Sized Electrodes Swell, Elongate and Spiral
ScienceDaily (Dec. 9, 2010) — New high resolution images of electrode wires made from materials used in rechargeable lithium ion batteries shows them contorting as they become charged with electricity. The thin, nano-sized wires writhe and fatten as lithium ions flow in during charging, according to a paper in this week's issue of the journal Science. The work suggests how rechargeable batteries eventually give out and might offer insights for building better batteries.
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