EV Thread

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-

D-Dub · Mar 23, 2019

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

PetrolDave · Mar 23, 2019

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.

Uwe · Mar 23, 2019

PetrolDave said:
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-

Jack@European_Parts · Mar 23, 2019

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?
Note to self no meetings at Cracker Barrel.....

Santos · Mar 25, 2019

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:

D-Dub · Mar 25, 2019

already missing a bolt in the undercarriage!

Detlef Trapp · Mar 25, 2019

Uwe said:
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/teslas-cobalt-usage-to-drop-from-3-today-to-0-elon-commits/

Uwe · Mar 25, 2019

Detlef Trapp said:
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.

Detlef Trapp said:
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/teslas-cobalt-usage-to-drop-from-3-today-to-0-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-

Jack@European_Parts · Mar 27, 2019

https://www.nydailynews.com/new-yor...k3zbadovmwrlkydcyom-story.html?outputType=amp

Fire breaks out at Citi Bike hub after e-bike battery charger bursts into flames

Jack@European_Parts · Mar 27, 2019

https://www.automobilemag.com/news/audi-struggles-turnaround-plan-ev-e-tron-future-product/

[h=1]Audi: What’s Wrong—and What’s Coming Next[/h][h=2]Too little, too late? Audi is struggling and the turnaround plan may require extensive[/h]

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