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New battery technlogy (John Goodenough)

  1. Mar 25, 2017 #1

    CWatters

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    This caught my eye recently. Sorry If it's already been discussed but I couldn't find a previous thread.

    https://news.utexas.edu/2017/02/28/goodenough-introduces-new-battery-technology

    Lithium-Ion Battery Inventor Introduces New Technology for Fast-Charging, Noncombustible Batteries

    but then also I've seen..

    https://qz.com/929794/has-lithium-battery-genius-john-goodenough-done-it-again-colleagues-are-skeptical/

    Not being a chemist can someone point me to a discussion on the issues. Why do some people think it shouldn't be possible?
     
  2. jcsd
  3. Mar 25, 2017 #2

    Borek

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  4. Mar 26, 2017 #3
    I was actually thinking about starting a thread on this myself.

    CWatters: To follow up on your original post: the basic argument by the critics is that if you're taking lithium (or sodium) on one side, and transferring it to the other side, then you're not doing any work; you've just moved it. You could just scrape it off the cathode, put it back on the anode, and voila, recharged!

    The possible hole I immediately saw with that argument is that you have to be able to state that being plated on the cathode is not a lower energy state - that you actually can just "remove" it without doing work, that its presence plated on the surface isn't held fast by intermolecular forces.

    Goodenough responded to his critics with the following:

    http://www.computerworld.com/articl...thium-ion-battery-responds-to-skepticism.html

    As a general rule, I'm inclined to believe the peer reviewed process at Energy and Environmental Science
     
    Last edited: Mar 26, 2017
  5. Mar 26, 2017 #4

    CWatters

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    Thanks for that.
     
  6. Mar 26, 2017 #5

    Vanadium 50

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    Peer review does not mean a paper is correct.
     
  7. Mar 27, 2017 #6

    Borek

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    Definitely, but I read the KarenRei post as saying "I trust peer review more, than random comments on the internet". Isn't it what we teach here? :wink:
     
  8. Mar 27, 2017 #7

    mheslep

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    A traditional problem with solid electrolyte batteries has been low power density relative to liquid electrolyte batteries. That is, if many times more battery versus an existing liquid li-ion is required to supply the required power (discharge rate), the increased energy density by itself won't make a good transportation battery.

    Indeed, a skeptic of the paper (Steingart) finds current density of the new battery as described should be 10 to 1000 times lower than the traditional Li-ion battery.

    https://medium.com/the-unfortunate-...big-deal-in-batteries-298c7ad9543a#.d63ntx4tt
     
  9. Apr 23, 2017 #8
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