Ever wonder why your lithium ion batteries degrade and die, and sometimes catch on fire? Well, a University of Arizona study has found a way to reduce the formation of lithium dendrites--kinda like a stalactite, but in a battery--to improve life and reduce the risk of fires. It's the same reason that lead-free solders (RoHS regulations) tend to result in electronic device failure. To draw a picture, current tends to flow along the dendrites instead of through the material between the lithium plates, and that results in a localized "hot spot" that destroys the battery, sometimes spectacularly in fire. The dendrite is acting, more or less, like a lightbulb filament. It's classic electromigration.
As Fat Albert said, if you're not careful, you just might learn something. I'd better watch out.
Senator Mitchell: DFL, Woodbury
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MInnesotans: “Judd Hoff. Matt Roznowski. Julie Blaha. John Thompson. Dan
Wolgamott. Brion Curran. Andy Smith. Can the DFL get any more depraved?”
Minnesota...
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