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Thursday, December 9, 2010

Charging Takes a Toll on a Battery's Insides

 The electric flyer's may find this of interest.

From Sciencemag:

As lithium ions flow from the positively charged cathode into the 200-nanometre diameter wires of tin oxide that make up the negatively charged anode, the nanowires writhe and bulge, causing them to expand up to 2.5 fold. The wires also change structure from a neatly ordered crystal to a disordered glassy material.
Complete article here:

Video here:

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