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Thread: EV Thread

  1. #451
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    yeah its ironic that a lot of the precious metals required for the various 'breakthroughs' in (insert random technology here) tend to be very rare.

    I don't quite understand where they are getting the energy from either, or how it needs cobalt in particular. Even the link to the university announcement doesn't provide much detail.

    The innovation, developed by Chemistry Department Chairman Prof. David Ryan and a group of UMass Lowell students, will enable electric vehicles of all sizes to run longer while maintaining zero emissions. The new technology uses water, carbon dioxide and the metal cobalt to produce hydrogen gas on demand at a relatively low temperature and pressure.
    Is the cobalt being 'burned' up? Is outside electricity involved (and how much) or is it primarily a chemical reaction involving the cobalt? is the cobalt no longer cobalt? can it be recovered/reversed or is now waste product?

    lots of questions, we need to get out there mining asteroids for all those metals! :P

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  3. #452
    Verified VCDS User PetrolDave's Avatar
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    A Google search suggests that the cobalt may be being used as a catalyst to speed up the generation of hydrogen so the cobalt would not be used up during the reaction.

  4. #453
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by PetrolDave View Post
    A Google search suggests that the cobalt may be being used as a catalyst to speed up the generation of hydrogen so the cobalt would not be used up during the reaction.
    In that case, there still has to be some other energy source. Catalysts can make a chemical process more efficient, i.e. less lossy than it would otherwise be, but they cannot do it without sufficient energy input to break the bonds the hold the water together to begin with.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  6. #454
    NostraJackAss Jack@European_Parts's Avatar
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    In that case, there still has to be some other energy source. Catalysts can make a chemical process more efficient, i.e. less lossy than it would otherwise be, but they cannot do it without sufficient energy input to break the bonds the hold the water together to begin with.

    -Uwe-
    Can't it with a specific frequency, oops oh yeah Majestic eye's only?
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  8. #455
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    My brother stopped by the office after getting his new car inspected. He picked up a Model 3 Mid Range Premium with autopilot. He ordered it right when tesla was changing prices and options. His package is no longer available.











    He ditched the aero hub caps and installed the tesla wheel kit. The car should have come this way from the factory.




    Bonus, Under carriage pic:


  9. #456
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    already missing a bolt in the undercarriage!

  10. #457
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    Quote Originally Posted by Uwe View Post
    Cobalt is already in very short supply due to its use in Li-ion batteries.

    Then there's no getting around a simple fact: To break hydrogen free from oxgyen in a water molecule takes just as much energy as you get back when you re-combine them. Where does that energy come from here? Since the only inputs are water, carbon dioxide and cobalt, they have to be "burning" the cobalt somehow. What cobalt compound(s) are produced?

    -Uwe-
    Usually hydrogen is produced by steam reforming hydrocarbons, mostly natural gas (which, in turn, contains mostly methane CH4) - see https://en.wikipedia.org/wiki/Hydrogen_production

    which for fueling cars makes little sense ecologically and economically since it is much smarter and easier to burn the natural gas in a combustion engine.

    60% of the cobalt worldwide come from Congo, which, due to the high demand, just raised license fees from 3,5% to 10%. Elons says their next generation batteries will have 0% cobalt see

    https://cleantechnica.com/2018/06/17...-elon-commits/

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  12. #458
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by Detlef Trapp View Post
    Usually hydrogen is produced by steam reforming hydrocarbons, mostly natural gas (which, in turn, contains mostly methane CH4) - see https://en.wikipedia.org/wiki/Hydrogen_production

    which for fueling cars makes little sense ecologically and economically since it is much smarter and easier to burn the natural gas in a combustion engine.
    Agreed, but these guys were talking about some method of producing hydrogen on demand, and methane was not one of the inputs.

    Quote Originally Posted by Detlef Trapp View Post
    60% of the cobalt worldwide come from Congo, which, due to the high demand, just raised license fees from 3,5% to 10%. Elons says their next generation batteries will have 0% cobalt see

    https://cleantechnica.com/2018/06/17...-elon-commits/
    Right, but with when looking at a claim like that from Elon, you have to ask "When?" He's delivered pretty much everything he's ever promised, but it almost always takes much longer than he said it would.

    -Uwe-
    Last edited by Uwe; 03-26-2019 at 09:23 AM. Reason: typo
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  14. #459
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    https://www.nydailynews.com/new-york...outputType=amp

    Fire breaks out at Citi Bike hub after e-bike battery charger bursts into flames
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  16. #460
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    https://www.automobilemag.com/news/a...uture-product/

    Audi: What’s Wrong—and What’s Coming Next

    Too little, too late? Audi is struggling and the turnaround plan may require extensive

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