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Degraded Electrodes Observed In Aging Batteries

Posted by timothy on from the taking-away-all-the-mystery dept.

schliz writes "Scientists have identified nanoscale changes in aging lithium-ion batteries that could be responsible for their degradation over time. By dissecting and examining dead batteries, they found that some lithium was irreversibly lost from the positive to negative electrode of dead batteries, and no longer participated in charging and discharging. They discovered that finely-structured nanomaterials on dead batteries' electrodes had coarsened in size, and theorise that the coarsening of the cathode may be responsible for the loss of lithium."

2 of 108 comments (clear)

  1. News? Not news. by Algorithmnast · · Score: 0, Flamebait

    This is news? Chemists have known of this issue with all chemical batteries for as far back as chemists have been involved with batteries. It gets attributed to Entropy. And this was taught in Chemistry 101 20 years ago.

    • Chemistry 101 - the one-semester everyone who is not a science major wants to take. The easy class that got shrugged at by non-chemistry majors.
    • 20 years go - it's probably being taught in High School these days.

    Not just outdated, ridiculously outdated "news".

    "This just in - scientists use vacuum tunnel and state of the art electronics to detect that gravity accelerates two different masses - at the same rate!!" [NB - sarcasm]

    1. Re:News? Not news. by Algorithmnast · · Score: 0, Flamebait
      You're jumping to an incorrect conclusion based off of a faulty reading of my comment.

      I never said it wasn't "science". I said it wasn't "news".

      Have you actually read TFA?

      Have you known the exact same information in TFA for 20+ years?

      I can say "yes" to both. So I have the background and knowledge to opine: It ain't "News".

      If in work I come across a "proof" as weak as the empty rhetoric found in these comments, I normally just let the person embarrass themselves.

      But in slashdot, no one can admit their ignorance.... [in space, no one can ...]