Quantum Batteries and Virtually Instant Charging

[whitenemesis]

Home charge an EV in minutes or at a supercharger station in seconds.. (Might be a few years off yet )

Quantum battery breakthrough paves way for instant recharging

 

[Dryce]

Home charge an EV in minutes or at a supercharger station in seconds.. (Might be a few years off yet )

Quantum battery breakthrough paves way for instant recharging

Hmmmmm.

Wonder what voltage would be required for a practical cable carry the energy to the car.

Say 84kWh .. in 90 seconds would be 3.3MW .... at 480V .... 7000 amps

Or maybe try a 33kV supply and get things down to 100 amps.

Or maybe they'll think up a quantum cable to deal with the proble,

(I'm being way way too cynical. I#d guess that with that sort of charging speeed batteres might well be smaller and cars would 'splash and dash' more frequently - you could set up a charging stations like toll booths on major routes at 50 or 100 mile intervals where cars would sijply slow down - auto,matically connect for say 30s and then zip off again).

 

[chic0821]

The luddite in me will stick to petrol. It's the future

 

[whitenemesis]

Hmmmmm.

Wonder what voltage would be required for a practical cable carry the energy to the car.

Say 84kWh .. in 90 seconds would be 3.3MW .... at 480V .... 7000 amps

Or maybe try a 33kV supply and get things down to 100 amps.

Or maybe they'll think up a quantum cable to deal with the proble,

(I'm being way way too cynical. I#d guess that with that sort of charging speeed batteres might well be smaller and cars would 'splash and dash' more frequently - you could set up a charging stations like toll booths on major routes at 50 or 100 mile intervals where cars would sijply slow down - auto,matically connect for say 30s and then zip off again).

It's my understanding that the increase in charge rate is due to the quantum nature of the batteries being able to recharge 'cells' in parallel, not serially as currently. There would be no need for hugely increased supply current. The proposed new batteries would simply be massively more efficient at taking up charge (bit like how quantum computers are massively more efficient at computations). Cables might be a thing of the past as lasers may be the exciters!
Batteries would be smaller and lighter but with hugely increased charge density.
Still many years away for vehicles, probably first application would be for smaller devices such as mobile phones.

 

[BTB 500]

It's my understanding that the increase in charge rate is due to the quantum nature of the batteries being able to recharge 'cells' in parallel, not serially as currently. There would be no need for hugely increased supply current. The proposed new batteries would simply be massively more efficient at taking up charge (bit like how quantum computers are massively more efficient at computations). Cables might be a thing of the past as lasers may be the exciters!
Batteries would be smaller and lighter but with hugely increased charge density.
Still many years away for vehicles, probably first application would be for smaller devices such as mobile phones.

“Ye cannae change the laws of physics Captain”

An electric vehicle needs a lot of stored energy (kWh). To put that into a battery (of any type) in a minute or two would require very high voltage and/or very high current (watts = amps x volts).

Lighter batteries would mean less capacity was required for similar range/performance. But AFAIK EV batteries currently account for under 20% of total vehicle weight, so even if you had a wonder battery that weighed nothing at all it would still need to hold 80% of the energy of a current one. Even if completely lossless charging brought that requirement down to (say) 50% of current battery capacity you'd still need to be dumping a *lot* of energy into the car very quickly ... which would require high current / voltage.

 

[clk320x]

Honestly baffled why people are so fixated on needing incredibly fast charging lol. Isn’t the average annual mileage sub 10k? Most people will never charge away from home. and for long road trips most people stop every 3 hours anyway so a 20-30 min top up is no biggie. Obviously a few on this forum drive 1000 miles non-stop splitting the driving so it wouldn’t work for them.

 

[davymead]

The fixation of quick charge featherweight batteries seems to me to be the panacea of the EV manufacturers themselves, and I guess anybody who believes that EV’s are still the way forward.
With all that’s happening in the energy world at this exact moment in time, I’ll happily continue to trundle round in my everlasting and incredibly frugal derv burner.

 

[Bobby Dazzler]

Honestly baffled why people are so fixated on needing incredibly fast charging lol. Isn’t the average annual mileage sub 10k? Most people will never charge away from home. and for long road trips most people stop every 3 hours anyway so a 20-30 min top up is no biggie. Obviously a few on this forum drive 1000 miles non-stop splitting the driving so it wouldn’t work for them.

 

[E55BOF]

I'll consider a pure EV once battery range is reliably 300 miles, most of it motorway cruising at 85 mph, and I can buy one at a reasonable price. I suspect my dotage, and the insurance companies declining to insure me in anything fast, will come before then, and I'll end my driving days in a hybrid of some sort.

 

[Dryce]

Honestly baffled why people are so fixated on needing incredibly fast charging lol. Isn’t the average annual mileage sub 10k? Most people will never charge away from home. and for long road trips most people stop every 3 hours anyway so a 20-30 min top up is no biggie. Obviously a few on this forum drive 1000 miles non-stop splitting the driving so it wouldn’t work for them.

This has come up before in discussion. Some people don't see the need to worry about a stop - even think it's a good thing.

Until a few months ago I was doing a lot of mileage for usiness - and about haldf my private mileage is long trips.

On business trips I don't want to have to worry about extra delays on a 400 mile journey - I don't want to arrive late at a hotel figuring that I need to find charging facility to be able to get about in the morning.

For leisure trips if I make a stop by choice it's going to be off the route for a purpose other than refueling my vehicle.

So that makes me stupid and narrow minded .... fair enough.

 

[clk320x]

This has come up before in discussion. Some people don't see the need to worry about a stop - even think it's a good thing.

Until a few months ago I was doing a lot of mileage for usiness - and about haldf my private mileage is long trips.

On business trips I don't want to have to worry about extra delays on a 400 mile journey - I don't want to arrive late at a hotel figuring that I need to find charging facility to be able to get about in the morning.

For leisure trips if I make a stop by choice it's going to be off the route for a purpose other than refueling my vehicle.

So that makes me stupid and narrow minded .... fair enough.

It doesn’t make you narrow minded at all. Each to their own. I one shared your same view, but once I actually drove one I was blown away. I’d encourage you to drive one for a week or so. The car plans any necessary stops for you.

 

[chic0821]

Obviously, battery technology is progressing at a pace, but assuming these Quantum or equivalent come on stream fairly soon, what will the present cars with today's technology be worth. Probably about as much as Betamax player in the day. (For the younger readers check out VHS v Betamax)

 

[markjay]

Obviously, battery technology is progressing at a pace, but assuming these Quantum or equivalent come on stream fairly soon, what will the present cars with today's technology be worth. Probably about as much as Betamax player in the day. (For the younger readers check out VHS v Betamax)

Or last year's iPhone....