Fully Charged in Just 6 Minutes – Groundbreaking Technique Could Revolutionize EV Charging::Typically, it takes around 10 hours to charge an electric vehicle. Even with fast-charging techniques, you’re still looking at a minimum of 30 minutes – and that’s if there’s an open spot at a charging station. If electric vehicles could charge as swiftly as we refill traditional gas vehicles, it wo
What a bullshit article. While better anode materials are always nice, these claims about charging speed are just dumb. That’s only so much power you can push into a battery and today’s 350 KW chargers are probably already the practical limit. And if you can’t take a 20 minute break every 400 km or so, you should go home and rethink your life.
yea, charging speed probably capped by anode chemistry. would splitting the pack by multiple BMS’s help circumvent this? if the charging time is the limit, people who prefer to drive 800km at a time could use an extra battery pack. that way a 20 min could be justified for them lol also we all know that it wont be 400km per charge. it would be only 330km at best.
That’s a weak ass road trip. My car gets 400 miles per tank and we don’t stop until it needs gas again. 400km is chump change on American roads.
That’s very reckless of you. Regular breaks are required to be able to drive safely. If you don’t take breaks you are being irresponsible and endangering your own life and those of others.
Jesus Christ lolol, Imagine attacking people because they don’t want to spend an half hour or more waiting on charging.
Poor baby can’t deal with physics so you lash out and pretend like waiting wasting hours on longer trips.
If you’re going on a long trip and don’t want to wait for charging, there are plenty of gas-powered options available to you.
thats no argument if u want the car to be mass adopted. not everyone lives in california, or the netherlands.
Really though, if you’re reaching the end of your battery capacity with a lot of EVs out there today, you’ve probably been driving for about 3-4 hours or so, if not longer, the general recommendations I’ve seen are you should really stop and get a 15 minute break about every 2 hours to stretch your legs, prevent fatigue, increase alertness, etc.so that’s pretty much in line with the recommendations. I know that’s pretty much the rhythm I and most other people I’ve ridden with tend to fall into on road trips without even trying. And very often despite my best efforts, rest stops tend to end up lasting around a half hour anyway because of checkout or bathroom lines, or one of my travel companions taking their time ordering food or getting distracted somewhere.
I get that some people can just power through much longer drives, and I’ve occasionally done it, but honestly it’s probably for the best if people are made to stop every couple hours and hit the reset button on their brains, a lot of people are shitty enough drivers when they’re fresh and well-rested, let alone after theyve been screaming down the interstate at 70mph for hours, and their brain is getting fatigued.
It’s double the recommendation in a best case scenario. It’s 4x as long a wait if you have to get in a queue.
I’ve never had a rest stop that takes more than 10 minutes and that’s if I have my toddler and wife.
If you want to stay forcing some drive time limits on people go ahead and try. But saying YOU get tired so everyone else must only be able to handle 2 hours at a time is insane. I’d be far far more tired showing up to my destination after an extra hour or two off driving and probably getting dark at that time.
That’s a very defensive response. You’re mocking the above poster because they “can’t deal with physics” but you seem to be neglecting biology yourself.
Driving something like 400km would take a good 4-6 hours depending on traffic. As a flesh and blood human you need to at least stop for the toilet, you should eat something to keep your energy levels up and you must always stay hydrated. Sure, you can power your body through that, but you can also power your body through 48 hours without sleep or an entire KFC bucket of chicken all to yourself - just because you can doesn’t mean you should or that it’s healthy. The difference in this case is that fatigue can lead to deaths, not just your own but whatever poor sucker you happened to drive into because you have been driving for 6 hours straight and lost concentration at just the wrong time.
Please do come back and claim that you don’t lose concentration and that you don’t need to stop every few hours because your reaction times and concentration levels are just fine. There isn’t a human on the planet that can make such a claim. Again: just because you can does not mean you should.
In the EU it’s mandated by law to rest after a few hours of driving. You shouldn’t be driving 9 hours continuously like ever.
Congratulations. That’s the dumbest take I’ve read on social media in weeks. That’s downright Reddit levels of stupidity. Why don’t you slink off back into whatever hole you crawled out from?
Alright, so let’s assume a 100kWh battery like some tesla models. Now, someone made such a battery that can be charged in 6 minutes… how much power does it need?
100 kW•h / 6minutes = 100kW•h / 0.1h = 1000kW = 1MW
So, we need 1 MEGAWATT car chargers … that’s some power required there.
Possibly even more significant, those are some large cables and even larger contacts required. There’s no way a 1MW disconnect is just a little plug you stick into your car.
In fact as an electrician I can’t think of anything even near megawatt class that would be connected with a portable cord, or at a voltage that would be safe for consumers to handle.
Maybe someone in the mining industry or similar can chime in, but I currently run a pumping station that includes 3000HP motors (2.2MW). These are 4kV 3 phase units where each phase cable is as thick as your arm. All connections are bolted and taped to avoid corona discharge. Just dragging the cable to the car would be more than the average driver could handle.
I don’t see a way to get these power levels into a car short of a standardized and semi-automated docking system. Or maybe go back to the idea of standard swappable batteries where the battery then is charged rapidly for the next customer.
The power lines in the cable are disconnected inside the charger by a contactor until communication with the car is confirmed established with a handshake, and then it connects power to the cable. If the communication with the car drops at any point, the contactor disconnects the power to the cable. It requires both effort and knowledge to bypass this design, it basically can’t happen accidentally.
Also, the cables you mention are that large, because they’re passively cooled, DC car chargers have watercooled cables so they can be much thinner without overheating. And at 4kV you’re looking at significantly different insulation thickness as well, compared to the 400-800V that electric cars use.
Electric busses already have automated docking systems, the only problem I see is cost
https://assets.foleon.com/eu-central-1/de-uploads-7e3kk3/39195/17_syb21_content1.79205c469709.jpg
u wouldnt plug in and plug out the thing live in a charger, no ? the charging station should detect when the car is plugged then activates some form of disconnect or something, to allow a 1Mw power to flow lol ? also 1Mw is far fetched, and the 6 min charging time is absurd. 12 min at 500 Kw speed would be more plausible
That’s 4,350 amps @230vac. The service fuse for my entire home is 80 or 100amp (single phase domestic dwelling Australia). The main breaker is 63amp.
DC fast charging typically runs at 400 volts, with some cars doing 800. They also do it with highly specialized equipment and service lines you’d never see in a residential setting.
When charging at home, you have all night. A 50A circuit will go 0-100 on most cars in that time, and if you look at what most people actually drive you can generally get by on much less.
Fast charging uses up to 1000 V DC, and the current limits of conductors are typically set by the temperature it reaches when conduction losses heat them up. This can be (and is) offset by liquid cooling, allowing current installations to deliver up to 650 A (Tesla supercharger v3).
With improvements, it’s not far off 1 MW.
The person above you said Tesla. Most newer Tesla models are 75 kWh-120kWh.
why not have a car with 2*300kw charging plugs, and with 200kwh battery (u would get 160kwh in 36min, which achieves a solid mileage, at an efficiency of 150wh/km). Tesla Semis already charge their 800kwh pack in 3 hours (i assume its done using a 300 kw plug ? ), still not sure
Tesla semi is meant to be able to charge at 1mw, which makes sense considering the size of the battery, bigger battery means more cells and more space for cooling. The truck is also meant to support 1mw with the new v4 chargers. So if you believe Tesla (which is hard because of Musk), it is coming.
Charging that rapidly is only possible for some but not all 100% of the battery as you have to slow down as you approach 100%. 350kw chargers slow down around 80% (I’ve gone as high as 85% before I’ve seen the slow down). This happens at all charging speeds to protect the battery, even 7kw chargers slow down for the last couple of percent.
However charging to 100% of the time on ultra rapid chargers is monumentally dumb as it’s considerably more expensive per kWh than slow chargers, slower for that last 20%, blocks chargers for longer, and isn’t good for the long term health of the battery. It is as quick to charge twice to 80% than it is once to 100% on the same charger for 60 to 70% more range from charging twice. This is true because you avoid slowing down at the end of the charge.
You’re speaking with current lithium battery technology in mind. Supposedly, scientists in the article figured out a new technology that can be charged in 6 minutes. No word on whether it’s still necessary to slow down at the end, or charging efficiency. Time will tell I guess
It’s highly unlikely that they solve what is essentially a heat distribution problem with new battery materials. If you stick a huge number of cells in a giant cooling system then you can charge even lithium considerably faster than we do now for all of the 100%.
We are limited by the space, how good the battery pre condition charging is,maintenance schedule of the car and charging point.
My car has a separate fluid cooling system for ultra rapid charging that has its own maintenance schedule, if this system was bigger and didn’t have to go a minimum of 12 months between changes then it could be charged for longer at higher speeds.
If my car had a bigger battery with more cells in a suitable arrangement then again I could charge faster for longer as the charge is spread out across the battery. However eventually you’ll hit the point that you are only charging a few of the cells as the rest are full and you have to slow down or the battery will get too hot.
I just don’t see them completely solving the heat problem, just improving the current percentages.
I’m sick of reading phones and cars charging in a matter of minutes for the past decade.
Don’t worry about it too much. These sorts of articles focus on battery tech, but the ultimate limiting factor is the ability of the plug to supply power.
A Tesla Model 3 has a 75kwh battery. Let’s say it’s at 20% charge. That’s 60kwh to get it full (assuming 100% charge efficiency). It would take 600kw to charge that in 6 minutes.
The SAE J1772 plug is only rated to go up to 400kw on DC level 2, and you’d be hard pressed to find a charger that does it. I couldn’t find info on Tesla’s plug, but since it’s about the same size, it’s likely around the same. Tesla’s superchargers are themselves only going up to 250kw.
It would take yet another plug standard, and chargers that can actually handle such a load. Oh, and upgrading the electrical network to handle such a beast in widespread use.
Most of which is pointless, anyway. EVs are best handled by giving them a little charge wherever they’re parked. For road trips, unless you’re the type to pee in a bottle and eat sandwiches you prepared ahead of time, about 300mi range with existing charge rates is sufficient.
The main problem I have with that 300-mile range is in winter. 500 km of range in Canada would be enough for my purposes, but when winter hits and that range is massively decreased, it wouldn’t quite be enough anymore. With winter being basically half the year here in Ontario, it’s a huge downside.
That’s calculated in.
After about 3 hours of driving, you’re going to be ready for a break. At 70mph, that’s 210 miles.
Batteries tend to charge quicker in the first 80% than the last 20%, and also don’t charge quickly in the last 10%, so add an additional 30%.
Add another 20% for cold days. There are a few odd days of extremely cold weather where it’d be lower, but this is rare anywhere people actually live. Long range traveling on those days is also highly discouraged regardless of the type of car. Or even short range traveling, for that matter.
We do not need to hold back the rest of society just because a handful of people live in the arctic circle.
Add all that together, and you get to about 330 miles. This is enough to get you to 80% charge at each stop, likely within 30 minutes. Maybe even 20. Just right for a food and bathroom break that you’re going to want, anyway.
If you think the number should be 4 hours of driving rather than 3, then 440 miles is the number to shoot for.
Current electric cars are about there already. Further battery advancement can go towards making the cars lighter and cheaper, not pushing range to unnecessary distance.
It’s a matter of power delivery at the moment. A modern rapid charger you can add about 10 miles a minute so 10 minutes is normally fine… barely enough time to have a cup of tea.
Getting power to a battery faster starts to become impractical simply because of the thickness of cable you’d need to do it, and the internal heat the battery would generate if you threw power at it that fast.
Think of it like a swimming pool. You can fill it with a small hose, might take an hour or two… bigger hose, maybe down to 30 minutes… you want it to be done in seconds? Sure… let me just turn up with this dump truck full of water…
Most of the things you read are about as useful as potato batteries. ‘We’ve come up with this new compound that can take charge really fast’. Sure. Now make millions of them, the size of a car, for a price people will pay. Oh you can’t… there’s the rub.
Turns out there are a near infinite ways of combining materials that make a battery, and only a handful that scale to industrial production.
I recently got a phone that charges at 65W, from empty to full in 30 minutes. It’s at least getting better all the time, I’d say
That’s not necessarily true, though it is also what I thought as of just a few days ago.
YouTube:
https://www.youtube.com/watch?v=UpqaQR4ikig
Piped Mirror:
https://piped.video/watch?v=UpqaQR4ikig
At least based on the information in this video from MKBHD, excessive heat is actually what causes rapid degradation of smartphone batteries. Super fast charging phones actually work by reducing the overall heat to the battery through engineering designs, such as by splitting the battery into two parts instead of having one entire battery that gets hot. In this way, a phone that supports 50W chargers can charge “each battery” at only 25W, instead of one single battery at 50W. The space between the batteries also insulates the heat between them. It’s simple but ingenious really.
You do have a tradeoff of less battery power overall, due to the gap between the batteries, but it is definitely a technical achievement.
I don’t know how EV batteries work, but since the batteries are made up of many different smaller batteries, they could theoretically isolate the heat much more effectively than in a smartphone, which is all crammed into one battery in a tiny little space.
Oh look. Another “could revolutionize” article.
could
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