Why is that never discussed? Oh, I see…
Posted on 10/16/2024 9:03:45 AM PDT by Red Badger
Here’s the best alternative at this particular time in history: ICE
It those damn pesky Laws of Thermodynamics.............
greenest vehicle of all would be a Flintstonemobile. gonna need strong legs and calluses.
“sustainable driving” — LOL. They are fixated on reducing petroleum consumption but ignore the hundreds of billions of tons of ore that must be dug up and refined to make “sustainable” cars at the front-end of manufacturing.
When you count ALL the raw materials used to make cars, transport raw materials, process the materials, build and maintain roads, over the lifetime of vehicles, you’ll find that EVs are no more “sustainable” than any other vehicle.
> a range of 1,000 kilometers (621 miles) and a charging time of just 10 minutes.
It will be charged by lightening bolts. That’s about the equivalent to the current required.
Why is that never discussed? Oh, I see…
There is no such thing as a ‘sustainable’ anything.
At some point ‘entropy’ takes over and it all falls apart......
The hitch: in order to be able to charge in just 10 minutes... it’ll melt your house wiring and burn down your home.
That’s even before we consider the inability of the power transmission infrastructure to handle the load.
“At some point ‘entropy’ takes over and it all falls apart”
Very true. Even at Galaxy scales. Mars had oceans and atmosphere.
At smaller scale, the notion of “sustainable” vehicles is utterly ridiculous. They wear out after 10 - 20 years and are scrapped. But weak, uneducated minds with zero sense of engineering are susceptible to ignorant non-scientific indoctrination. They blindly parrot the “sustainable” mantra without any basis for understanding what they are saying.
LFP happen to have both he lowest cost for lithium and the longest lifetime in charge cycles.
For example, consider a battery with 3,000 - 10,000 charge cycles. (currently LFP can be recharged 3,000 times under non-optimal charging (read supercharging) and 10,000 times optimal (read overnight charging)).
see https://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery for proof of my claim.
Ok, so what does that mean in terms of lifetime/cost?
Assume 1 charge cycle per day (that assume you drive over 200 miles in a day, which is 5x times the USA average of 39.7 miles. This means that you will get 8.2 years of battery lifetime, if using superchargers. Or 27.3 years if using overnight charging.
let’s say you instead of ~40 miles a day were a heavy user and drove 100 miles per day. That’s 985,500 miles - the so-called “Million Mile battery”.
In that time, you would have worn out 3-8 gasoline engines/transmissions.
Can electric motors last that long? Yes. You will wear out the running gear first probably, having to replace shocks, springs multiple times.
What’s the downside right now? LFP is not “immune” to fires, just like gasoline, it will burn in a wreck.
The desire for solid state batteries is that they won’t burn, at all, because it’s the electrolyte that burns.
I don’t advocate for government programs promoting electric cars, LET THE MARKET DECIDE.
The leapfrog in engine technology is with ICE. Witness Nissan’s remarkable variable compression engine and now Porche’s six stroke. Truly amazing.
Why don’t they use Perpetual Motion!
It works on YouTube! /LOL
If cars, or anything else for that matter, were truly ‘sustainable’, then you would need to buy only one and it would last forever. Manufacturers don’t like that.
I once met and engineer that worked for a tire company and he told me that they could make a tire that would last for 100k miles or more, and this was in the early 70’s when typical tires would last 30-40k miles. But that would not be good for the company.............
> the inability of the power transmission infrastructure to handle the load.
Neighborhood Nuclear Power Plants To The Rescue!
No, seriously, there’s low-tech nuclear solutions for generating electricity, and also low-tech nuclear solutions for manufacturing diesel. Of course if you and your neighbors can produce your own diesel you might not need an EV...
Most of these solutions run off natural or slightly-enriched uranium; add-on higher tech features include thorium conversion for higher energy output, radioactive “waste” burnup for remediation and higher efficiency, irradiation chambers to manufacture specialty isotopes; etc.
The smallest useful designs produce roughly 20KW to 100MW of quality heat energy, suitable for farm/ranch/industrial/desalination/oil&gas extraction/mining/other process heat consumption.
” ... Witness Nissan’s remarkable variable compression engine ... “
In the end, Nissan’s VC-Turbo variable compression ratio engine technology is interesting, but it might be more headache than it’s worth. Although it’s not radically different from a standard piston-type internal combustion engine, it has just enough extra moving parts that failure, it seems, is an option.
And massive AI server farms.
There is a HUGE battery plant going up outside a large city in Indiana. I’m going to point my finger and stare them straight in the eye and say “I told you so” when the EV industry falls completely apart.
“It those damn pesky Laws of Thermodynamics.............”
You are right second law machines will always be more efficient than first law machines. This is why electric motors crush heat engines in turning chemical energy into motion and always will. Math it’s universal and also the law.
On a btu to btu basis an EV is four to five times more effective in turning chemical energy to motion. This includes burning natural gas in combined cycle turbines, sending it via the already very efficient distribution grid which wouldn’t exist if it was not so eff at sending electrons over long distances. Even after all those losses including charging the pack the EV’s second law motors STILL use less BTU per mile than burning gas in a conventional ICE the data and math is available wit large on Google scholar. Summary is 60+% eff combined cycle turbines > 5% or less transmission losses to the plug and 8% or less pack charge loss. Still crushes a regular ICE at 12.5% average over the drive cycle and a peak BSFC point of 32% at best and only at one operating point near 75% max output for the typical 200hp car is 150hp.used less than 1% of its drive cycle. Cruising at speed is 25hp for a sedan sized car and under 20% BSFC by LHV BTU to the wheels.
Solid state have the energy density for 1000km per charge that is 600 miles. NO ONE and I mean no one drives 600 miles in a day every day. It’s moot with 10 min charges anyway. I have owned plenty of vehicles with under 300 miles range before needed to be filled it wouldn’t be until 2005 till I had a vehicle that would go 400+ miles on a tank. My Explorer, Blazer, Jeep, RX7 never went more than 300 most were 275 or less per tank. So 300 is plenty of range it’s charge time and access to charge points that matters. Fuel takes 5 to 10 min so it didn’t matter that the blazer only went 250 at a tank it took ten min to fill it up and go again. Once you have easy access to ten min charges of 300+ miles it is the exact same thing. Difference is at 10 cents per kWh it’s 2 cents per mile. Vs $3.00 gas in a 25 mpg fleet avg vehicle is 12 cents per mile or six times as much.
It comes down to charge time and that’s where solid state and semi solid state.change the game they can do 10C charges that is 6 min even a 6C charge is only ten min. CATL already has LFP cells regular liquid cells that can do 6C. The DOD is getting aluminum graphene cells that can do 66C those will like Velcro eventually get to retail sales.
66C is 54 seconds from zero to 100% clearly not for EV sized packs but you could charge a cellphone sized pack in 54
seconds from a 120V 15amp plug. Typical smartphone is 10 watt hours in it’s pack so in 60 seconds that is 600 joules per second which is a 60C rate. At 66C it needs 660 joules per second that’s equal to 660 watts the Chinese have a USB that does 10 amps at 60V that’s also 600 watts so yeah you could charge a smartphone in 60 seconds using that standard.
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