700 mile charge in 1 minute

Batteries, Chargers, and Battery Management Systems.
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Harold in CR
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700 mile charge in 1 minute

Post by Harold in CR » Jan 09, 2018 5:22 pm

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Re: 700 mile charge in 1 minute

Post by e-beach » Jan 09, 2018 5:47 pm

I think this one falls under the talk is cheap category. However if a Fisker solid state battery can take an enormous current while charging it could be possible. You won't get that current out of your wall socket. :lol:

Independent verification is need for this one.

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Harold in CR
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Re: 700 mile charge in 1 minute

Post by Harold in CR » Jan 09, 2018 8:14 pm

I took a stab at calculating the battery pack needed for 700 miles, then figured 450 Whrs/mile and my calculator went blank. Have to figure what voltage and amperage before calculating, then figure in 1 minute charge ?? I just don't see it happening.
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Chalo
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Re: 700 mile charge in 1 minute

Post by Chalo » Jan 10, 2018 3:36 am

One day it might be possible. If that happens, it will be because batteries are better, and because cars aren't as horrifying as now, and because drivers' expectations aren't stupid/callously indifferent like now.

As for Henrik Fisker, I think he's probably just talking out his ass.
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Re: 700 mile charge in 1 minute

Post by Punx0r » Jan 10, 2018 3:52 am

The battery might be capable of it, but the wiring, connector and local supply probably won't be.

700miles x 450Wh/mi = 315kWh / (1/60) = 18,900kW = ~19MW

At 400V that's around 47,250A

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Chalo
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Re: 700 mile charge in 1 minute

Post by Chalo » Jan 10, 2018 4:05 am

Punx0r wrote:
Jan 10, 2018 3:52 am
At 400V that's around 47,250A
Do you think I'll need 12ga house wiring for 47kA, or will 14ga do?
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Re: 700 mile charge in 1 minute

Post by Harold in CR » Jan 10, 2018 8:07 am

punxor has the same numbers I got with my calculations. I sometimes take a full 4.1v battery and connect it to a 3.0v battery to get it up to chargable voltage and the wire connection gets warm in a hurry. I'm a retired power company lineman, among other types of employment and have had huge plasma arcs over my head from
shorted transformers that would not equal 43000 amps, so I can actually visualize what the 1 minute charge would be. I vision substations glowing. :shock:

Maybe Henrik uses Kryptonite for the solid state materials ??
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fechter
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Re: 700 mile charge in 1 minute

Post by fechter » Jan 10, 2018 9:32 am

Chalo wrote:
Jan 10, 2018 4:05 am
Punx0r wrote:
Jan 10, 2018 3:52 am
At 400V that's around 47,250A
Do you think I'll need 12ga house wiring for 47kA, or will 14ga do?
If I extrapolate from a standard wire chart, it indicates 47kA would require a copper wire 29" in diameter (you need two).

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Re: 700 mile charge in 1 minute

Post by Punx0r » Jan 10, 2018 9:57 am

You hear of people recharging high performance RC lipo in under 10mins, so assuming 5-10x better performance with a speculative, probably solid-state future battery isn't too far fetched. However, charging your RC toy battery in 60 seconds may be practical, but there's a bit of a scaling issue with a car.
Chalo wrote:
Jan 10, 2018 4:05 am

Do you think I'll need 12ga house wiring for 47kA, or will 14ga do?
14 AWG should be ok as long as you keep the wiring infinitesimally short :D I hope you haven't got a big house!

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Re: 700 mile charge in 1 minute

Post by markz » Jan 10, 2018 7:21 pm

On the market now - 150 miles on 10 minute charge. But you pay for it, which nets you a 400 mile pack.

Then he talks about Solid State batteries in which 500 miles for 1 minute charge. But the news anchor misheard and stated 700 miles for 1 minute charge. Which will take a very many years, if at all. What the cost is, who knows.

Yahoo is famous for its click bait article titles. Just be lucky Yahoo even posted a video for it, half the time they dont attach pictures to a story that 100% requires a picture.

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Re: 700 mile charge in 1 minute

Post by Sunder » Jan 10, 2018 11:50 pm

I think the 700 mile in 1 minute is the theoretical "The battery won't catch fire" rate. This newer article here:

https://www.express.co.uk/life-style/ca ... ging-times

Says the car should charge 125miles in 9 minutes.

I use the reverse measure. Most cars seem to get about 18kwh/100km. 125 miles = 200km, 36kwh.

36kwh in 9 mins = 240kw charger required.

Imagine accidentally shorting that battery or charger...
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Re: 700 mile charge in 1 minute

Post by amberwolf » Jan 11, 2018 2:57 am

I'm sure it will all work just fine, if you keep the liquid helium flowing.... ;)

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Sunder
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Re: 700 mile charge in 1 minute

Post by Sunder » Jan 11, 2018 3:14 am

Warranty probably says: Battery warranty void if charged above absolute zero.
eBike: Q100H on 16S with Phaserunner FOC Controller
eMotorscooter: Vectrix VX-1 on 36S
eCar: Mitsubishi Outlander PHEV... Waiting for warranty to expire
eHouse: Still on grid, but with LTO batteries and 3kw LF inverter...

After 5 builds, the best advice I can give, is start with high quality products. I prefer http://www.ebikes.ca

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dogman dan
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Re: 700 mile charge in 1 minute

Post by dogman dan » Jan 11, 2018 7:19 am

On the other hand, if you could do a 200 mile charge in 30-45 min, that would work for pretty practical travel. Most folks will stop to eat at least every 200 miles.

Have to locate the charge station near someplace you would eat though, or have a cab ride that comes with the charge.

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