Atomic Photos of failing batteries

Discussion in 'Knowledge Base Articles Discussion' started by Mendel Leisk, Oct 28, 2017.

  1. Mendel Leisk

    Mendel Leisk Sunday driver DIY’r

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  2. fuzzy1

    fuzzy1 Senior Member

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    I've had to track down dendrites in a different context. Mine were forming on the surface of a printed circuit board in near-condensing humidity, shorting to a sensitive power supply feedback control node, causing a momentary high voltage condition that blew up a separate part. The high voltage also cleared the dendrite, so the power supply returned to normal operation. Once I was able to reproduce and record some events in action in an environmental chamber, and figured out just where they must be getting triggered, the manufacturing folks were able to see them at low optical magnification. And fix them by changed the soldering process to a cleaner (though more expensive) method, leaving less residual surface contamination.

    But that was easy compared to what these battery guys are doing.
     
    #2 fuzzy1, Oct 28, 2017
    Last edited: Oct 28, 2017
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  3. Skylis A

    Skylis A Senior Member

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    Maybe the challenge isn't to prevent dendrites, but... what if there was a way to use nanobots to repair dendrites automatically?
     
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  4. bisco

    bisco cookie crumbler

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    pretty cool photography. should help in advancing battery tech.
     
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