Posted on 05/19/2021 9:01:25 AM PDT by Jonty30
Australian company Graphene Manufacturing Group (GMG) has announced exciting performance test results for a new type of aluminum-ion battery that can charge 10X faster than today's lithium-ion units, while lasting much longer and needing no cooling.
(Excerpt) Read more at newatlas.com ...
I don't think most people would mind plugging this in daily, if it meant 300km trips were realizeable.
Also, aluminum would eliminate the problem of availability of copper.
For electric vehicles, the bottleneck isn’t how fast the batteries can be recharged, it’s how much power must be provided to the recharging station and how heavy and thick the recharging cables have to be in order to deliver tens of kilowatts of energy per minute to the vehicle.
I always like to ask the question, how thick would a wire have to be to fully charge a tesla battery in five minutes.
And Aluminum is not a rare earth mineral.
The Stone Age didn’t end because they ran out of stones.
We have black outs every summer in CA. What happens when everyone charges their car all night?
Aluminium-ion batteries have a relatively short shelf life. oops
That is true and infinitely recyclable.
Doesn’t aluminum require a lot of electricity to refine?
“luminium-ion batteries have a relatively short shelf life. oops”
Yep. Aluminum has a problem with electricity, but some sucker investor will buy this nonsense.
Excuse my dumbness, but Is this the same aluminum they’re talking about? If so, won’t that leave big holes in the earth and still require electricity?
In the production of aluminum today by the Hall-Héroult process, the aluminum oxide is dissolved in a molten mixture of sodium, calcium, and aluminum fluorides, which melts at a lower temperature than cryolite. The aluminum oxide is in the form of bauxite, a white, brown, or red earthy clay; it was first found near Les Baux, France, in 1821 by P. Berthier, and is now the main source of all aluminum. It is mined in various parts of Africa and in France, Surinam, Jamaica, and the United States—mainly in Alabama, Arkansas, and Georgia. The world’s supply of bauxite appears to be immense enough to last for hundreds of years at the rate it is being mined today.
Dielectric breakdown happens. No fun 60 miles away from civilization.
Since it is recyclable infinitely, refining costs would be a continually smaller share as it gets reused.
I’m not big on e-cars, but if we are going to be forced into them. I’d like the most usable product.
Absolutely nothing.
Power produced must be consumed immediately. You can’t save it for later to power air conditioning or ovens.
When/if we do have massive battery energy storage it is the equivalent of massive capacity expansion. We can store any unused production for later when there is demand for it.
By the way what is the cost per kWh and power density of these new aluminum ion batteries? Commercialization requires a balance of metrics. What companies don’t tell you is usually a disqualifier.
Yeah, but they cause Alzheimer’s.
My math is very rusty, but let me take a stab at it.
A Tesla Model 3 has an 82kWh battery pack. For simplicity's sake, round that down to 80kWh.
The size of the wire will depend on the voltage applied, but let's choose 480V for a commonly used voltage.
In order to deliver 80kW of energy in 5 minutes, that's the equivalent of delivering 960,000kW of energy in an hour.
960,000W/480V = 2,000 Amps of current.
So you would need to have a wire capable of providing 2,000 amps at 480V to the car. I can't find an online wire gauge calculator that will work with current ratings that high.
And you would need a charging station capable of providing 2,000 amps of current at 480V, too.
Depends on the charging voltage. Go high voltage and you can get away with a fairly thin wire.
Whole lotta instances of the word “but” in that article.
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