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Re:Solid-state cells will cut EV charging time and increase ... by mrb on Wednesday May 11, 2022 @12:34AM (#31335889)
For comparison, a Tesla Model S Plaid charges to 80% in 30 minutes, on a v3 supercharger. Reference (exactly 78% in 30 minutes): https://insideevs.com/news/544379/tesla-model-s-plaid-superc...
Re:Solid-state cells will cut EV charging time and increase ... by KennyBlanken on Wednesday May 11, 2022 @01:54AM (#31336278)
For comparison, a Hyundai Ioniq 5 (or Kia EV6) charges from 10% to 80% in eighteen minutes on an 800v capable charger.

Other 800v cars are similarly fast: Audi e-Tron, Porsche Taycan, Lucid. Polestar has announced they're going 800v in 2024. GM's Ultium platform already uses 800v (currently just the Hummer, but expect them to rapidly release more truck and SUV models based on Ultium.)

Tesla has been snoozing for 3+ years on charging tech, and now their 400v architecture is inferior to what Hyundai, Kia, and GM offer. General Motors offers better charging tech than Tesla.

The world's largest automakers are (successfully) gunning for Tesla. Not a good time for Musk to be distracted, fucking around with a social media company...

Re:Solid-state cells will cut EV charging time and increase ... by grahamludwinski on Wednesday May 11, 2022 @03:11PM (#31344409)
Hyundai and Kia max out around 230kw, Taycan maxes out around 270kw but can't sustain it for very long, but Lucid is actually able to hit 300kw.

Tesla is maxed out at 250kw for all models (3,Y,S,X) but they are working on increasing charging speeds on their V3 superchargers later this year: rumored to be 325kw. So I would say they are very much competitive with the rest of the industry and their better drive-train efficiency means you still get more added range per minute than all other EVs (except Lucid)

Re:Solid-state cells will cut EV charging time and increase ... by 2rsf on Wednesday May 11, 2022 @02:56AM (#31336648)
The only problem, at least here in Sweden, is the lack of fast chargers and the quality of those that exist. Most places have cheap to free 20KW chargers, 50KW are easy to find but 120KW and up requires you to travel a few kilometers or more and possibly stand in a queue.

Add to that the fact that those optimistic numbers are in perfect conditions, a preheated battery and the stars aligning perfectly in the sky that day- I rarely get even close to the advertised numbers.

Re:Solid-state cells will cut EV charging time and increase ... by clouddrover on Wednesday May 11, 2022 @01:16AM (#31336072)
The Hyundai Ioniq 5 charges 10 to 80% in 18 minutes: https://www.youtube.com/watch?v=WCqcqy29ZCc

The Porsche Taycan can do 0 to 80% in 21 minutes: https://www.youtube.com/watch?v=PrkAeTWDed4

A charging comparison between the Hyundai Ioniq 5, Audi e-tron GT (same platform as the Taycan), Audi e-tron 55, and a Tesla Model 3 Long Range: https://www.youtube.com/watch?v=9gxcukAhIAU

Re:Solid-state cells will cut EV charging time and increase ... by natch on Wednesday May 11, 2022 @03:16AM (#31336788)
Those non-Tesla speed numbers are only at certain rare chargers.

Remember Volkswagen Group hacking their own emissions tests? Reminds me of that.

Good luck traveling and finding those speeds. It’s more like “oh look we have an existence proof of a handful of fast chargers but none where you are going…” well, OK. I’d rather have a well built out network.

Re:Solid-state cells will cut EV charging time and increase ... by clouddrover on Wednesday May 11, 2022 @03:32AM (#31336879)
> Those non-Tesla speed numbers are only at certain rare chargers.

Here's a recent road trip by Out of Spec Motoring going from Fort Collins, Colorado to Las Vegas, Nevada. They took 5 EVs - 3 CCS cars, 2 Teslas:

https://www.youtube.com/watch?v=fFQZhR-PRVo

The finishing order was Porsche Taycan, Hyundai Ioniq 5, Tesla Model X, Tesla Model 3, Ford Mustang Mach-e.

As ever, your mileage may vary.

> I’d rather have a well built out network.

Then what you want is CCS chargers with all brands of EV being able to charge at all brands of charger. Europe's leading the way on this. Most EVs use CCS in Europe (even Tesla).

Tesla is yet to switch to CCS in North America. Maybe they will soon.

Re:Solid-state cells will cut EV charging time and increase ... by natch on Friday May 13, 2022 @12:59AM (#31363505)
I would not trust that event to be a fair assessment.

The organizer does sponsorships with auto companies, and I can’t tell whether this was sponsored by Porsche, but, from his behavior, it seems like it was… seeing more and more of this on YouTube lately and it’s often not clearly disclosed.

The website mentions transparency, but I really don’t see any transparency here, although I will admit I have not been able to locate any fine print revealing the nature of the relationship with Porsche. The site basically just has a contact button and not much else. It looks not very transparent so I’d be wary.

And they had highly uncharacteristic issues with the Tesla superchargers during the trip, which possibly could have been known in advance, as part of the set up to tilt the board against Tesla by choosing this time to travel that route.

I stopped by a local Electrify America charger today just out of curiosity, and there was no 350 charger there, only 150. And usually there is only one 350 station if any. The nearby Supercharger in the same parking lot (though not open yet, still roped off) is 250 x 16 stations… kind of an overwhelming advantage there, one that can only be overcome by paid sponsored events that aim to plant false perceptions.

Re:Solid-state cells will cut EV charging time and increase ... by clouddrover on Friday May 13, 2022 @01:39AM (#31363748)
Sure. It's all a conspiracy.

Here's another conspiracy: https://insideevs.com/news/585238/elon-musk-ccs1-plugs-comin...

The future is CCS chargers for everyone. Don't worry about it.

Re:Solid-state cells will cut EV charging time and increase ... by natch on Sunday May 15, 2022 @12:11AM (#31385192)
https://en.m.wikipedia.org/wiki/Negative_conclusion_from_aff...

Even so, when we do get CCS for Tesla, that is yet another piece of good news for Tesla, because then we will have even more charging options over and above having the best Supercharger network, so the Porsche team will do well to get good at buying publicity.

Don’t be confused, I’m not saying all this to gloat, but more to say you should think twice before spending money on a competing car if you are relying on sketch events for data points.

Re:Solid-state cells will cut EV charging time and increase ... by clouddrover on Sunday May 15, 2022 @12:50AM (#31385353)
I have no idea what you're talking about. I'm not convinced you know what you're talking about either.

Tesla is already CCS in Europe, Australia, New Zealand, Taiwan, etc. The European Tesla charging stations are already opening to all brands of EV.

The US is behind but eventually it will catch up. It's just a function of the US EV market being one third the size of the European EV market. Money will go to the bigger markets first and then the smaller markets will follow.

All brands being on the same charging standard is a good thing. You can fuel any brand of ICE vehicle at any brand of fueling station and you should be able to charge any brand of EV at any brand of charging station. Anything less than that just makes EVs worse.

Don't agonize over it. Embrace it.

Re:Solid-state cells will cut EV charging time and increase ... by natch on Monday May 16, 2022 @02:14AM (#31394074)
>I have no idea what you're talking about.

I love how you think you are telling me stuff I don't know, though… bless your heart.

Re:Solid-state cells will cut EV charging time and increase ... by clouddrover on Monday May 16, 2022 @04:57AM (#31394835)
You make bizarre unfounded claims that there's some anti-Tesla, pro-Porsche conspiracy afoot purely because you can't handle the idea that two CCS cars out-road tripped two Teslas, and you think you know something? This thread has gone absolutely nowhere.

You don't need to bless my heart. You need to cultivate some perspective.

Re:Solid-state cells will cut EV charging time and increase ... by chipsa on Wednesday May 11, 2022 @11:30AM (#31341455)
Musk's announced that Superchargers will have a CCS connector in some way (separate CCS cable or adapter that plugs onto the top of the Tesla connector).
Re:Solid-state cells will cut EV charging time and increase ... by Youden on Wednesday May 11, 2022 @09:18AM (#31339541)
I thought it was odd that you claimed those chargers are rare, turns out they are - in the US.

According to [0], there are only a few 350kW chargers in the US, mostly in the Northeast. If you look at the same map in Europe, they're pretty common on long-distance travel routes.

I wonder why this is? Is it related to US electrical infrastructure? I know in much of Europe it's common to have 3-phase electricity at home, for example.

[0]: https://chargemap.com/map (click "Search", set minimum power to 350kW and select all plugs)

Re:Solid-state cells will cut EV charging time and increase ... by clouddrover on Wednesday May 11, 2022 @09:37AM (#31339752)
> I wonder why this is?

It's because Chargemap's US map isn't very good.

Try Plugshare (https://www.plugshare.com/) or A Better Route Planner (https://abetterrouteplanner.com/) or the maps from some of the providers themselves like Electrify America (https://www.electrifyamerica.com/locate-charger/).

Re:Solid-state cells will cut EV charging time and increase ... by Youden on Wednesday May 11, 2022 @10:51AM (#31340798)
Ah, good catch. So the situation in the US is pretty similar to Europe: there are plenty of fast chargers along the long-distance routes.
Re:Solid-state cells will cut EV charging time and increase ... by olavgg on Wednesday May 11, 2022 @03:47AM (#31336982)
I have a Porsche Taycan, and while it can charge 250kw/h, it only last for a few minutes. On average fast charging from 20% to 80% takes 30-45 minutes. This is with a heated battery and on Ionity network.
Re:Solid-state cells will cut EV charging time and increase ... by tooltalk on Wednesday May 11, 2022 @01:31AM (#31336147)
Hyundai/Kia Ioniq 5/EV6 can do 10%-80% in 18 mins now (with sustained peak charging 235kw between 10%-45%). I guess this is a small step forward, but certainly not a breakthrough.
Re:Solid-state cells will cut EV charging time and increase ... by Youden on Wednesday May 11, 2022 @08:59AM (#31339306)
FWIW I own an EV6 and found the more nuanced analysis of its charging at [0] to be much more useful to me than the headline numbers.

[0]: https://insideevs.com/news/537223/kia-ev6-prototype-fast-cha...

Re:Solid-state cells will cut EV charging time and increase ... by brandmeyer on Wednesday May 11, 2022 @11:06AM (#31341067)
"That which the large print giveth, the fine print taketh away." In this case however, the charging time details haven't altered my user experience in any way. Real-world charging stops really are in the 12-15 minute range for us.
Re:Solid-state cells will cut EV charging time and increase ... by Youden on Wednesday May 11, 2022 @02:38PM (#31344043)
Absolutely. I didn't mean to say "the charging is actually bad", just that I found it more nuanced than the headline number.

I really like the colourful chart they have showing different charging speeds between different charge points. Thanks to that I think I'll probably try to charge 20-80% most of the time.

I'm used to thinking about it like a phone, which is always charged to 100%, but I think with the car I'd rather keep it to 60% or so for day to day driving around town and only take it to 80% or 100% for longer trips.

I'm going to try doing these measurements for my own car though, since the article was based on a prototype.

Re:Solid-state cells will cut EV charging time and increase ... by petesergeant on Wednesday May 11, 2022 @12:52AM (#31335962)
Very curious about how much difference that 15m takes, and presumably there are at least some studies. A 15m charge to use the restroom, check Instagram, buy a coffee feels very doable in a way that 30m feels like a drag, and more than twice the effort.
Re:Solid-state cells will cut EV charging time and increase ... by trashtester on Wednesday May 11, 2022 @03:15AM (#31336778)
These cars have ranges around 400 miles / 600 km, and EV owners normally charge them at home regularly.

Cold weather or non-economical driving may reduce that a bit, but you are unlikely to need to stop to charge in any given day before driving 200-300 miles (300-450km).

If you plan to go another 200+ miles, a 30 minute break may be welcome at that point. Or if you're caught just 50 miles or so from home, just charging 5-10 mins should let you reach your home charger.

Anyway, for normal commute driving, most people rarely need to charge away from home. These stations are for longer trips, that most people do only a handful of times per month.

Re:Solid-state cells will cut EV charging time and increase ... by nightski on Wednesday May 11, 2022 @01:15AM (#31336070)
Agreed but imho it's not just about how long it is for one person. If a significant amount of people start needing to charge we are going to need more throughput at charging stations.
Re:Solid-state cells will cut EV charging time and increase ... by robocat on Wednesday May 11, 2022 @02:30AM (#31336487)
Long congestion delays could occur trying to charge on long trips during holidays. Daily driving is less of a problem since most people can charge at home. https://www.youtube.com/watch?v=OfUJCWRFjig
Re:Solid-state cells will cut EV charging time and increase ... by afarrell on Wednesday May 11, 2022 @04:50AM (#31337413)
Could this be a market opportunity for a restaurant chain like Sonic or Fuddruckers?
Re:Solid-state cells will cut EV charging time and increase ... by theshrike79 on Wednesday May 11, 2022 @08:42AM (#31339082)
In Finland McDonalds has been installing 350kW chargers at their locations for a few years now.

It's pretty much the perfect location, the car usually charges faster than you can wolf down your Big Mac and fries.

The big super market chains are the other big player, they're taking customers from (overpriced) gas stations. It's usually a 5-10 minute detour to get to the local mega-mart and they have cafes and restaurants in there anyway - without the gas station markup.

Re:Solid-state cells will cut EV charging time and increase ... by KennyBlanken on Wednesday May 11, 2022 @02:01AM (#31336316)
Tesla V3 stations are not "oversubscribed" like v2 stations, but they are hamstrung by a max grid connection of 350kW.

Once the charging station's own battery is depleted - if all four stalls are in use, they will each deliver 87kW.

That is laughably bad.

Re:Solid-state cells will cut EV charging time and increase ... by mschuster91 on Wednesday May 11, 2022 @04:18AM (#31337227)
> but they are hamstrung by a max grid connection of 350kW

And with good reason, there aren't many power grids particularly along long roads where you can simply plug in more than half a megawatt of consistent (!) load and everything continues to work as-is.

The sorry state of many power grids is keeping actually smart load management, EV, solar/wind/other renewable power generation and wildfire safety back so hard it hurts.

Re:Solid-state cells will cut EV charging time and increase ... by briffle on Wednesday May 11, 2022 @11:22AM (#31341320)
I'm not sure that is really a problem of 'sorry state of power grid'. Its more like 'rapidly changing requirements'.

5 years ago, most rural lines were supporting homes and businesses with 200amp panels (and oversubscribed, since not everyone pulls all those amps at the same time). Complaining the grid isn't ready is like putting a gas power plant in the middle of no-where, and complaining that the only nearby gas main between two towns is too small to run the 700MW power plant.

Tesla can work around this by larger battery banks, or solar arrays to help recharge the battery bank faster. (they own companies that produce both). And in spots where they often can't keep up with demand, work with the power companies to get more power delivered.

Re:Solid-state cells will cut EV charging time and increase ... by throwawayboise on Wednesday May 11, 2022 @01:10AM (#31336041)
15 minutes still sounds like a very long time to me, compared to fueling a gasoline vehicle (I rarely use the restroom, check Instagram, or buy a coffee, or do anything else when I do this). I'm typically back on the road in under 5 minutes.
Re:Solid-state cells will cut EV charging time and increase ... by franciscop on Wednesday May 11, 2022 @01:18AM (#31336084)
True, but 15 min still feels into the "small break, mild inconvenience" vs 30 min that feels like a real full stop and rest for the car to charge.

Potentially you could also just stop for 5 or 10 mins for a partial charge? 15 mins gets you to 80%, but arguably 5-10 mins might give you enough juice to very comfortably get where you need to go.

I know when I forget to charge my phone before heading out, those 5-10 min charge I squeeze before heading out might mean the difference between having battery at the end of the day, or not.

Re:Solid-state cells will cut EV charging time and increase ... by natch on Wednesday May 11, 2022 @03:06AM (#31336711)
>Potentially you could also just stop for 5 or 10 mins for a partial charge?

Exactly, that’s the trick!

Although I still meet people who don’t get this and needlessly keep their charge topped up while traveling, which is a lot slower.

Re:Solid-state cells will cut EV charging time and increase ... by exitb on Wednesday May 11, 2022 @02:13AM (#31336385)
When you primarily charge at home, I'd imagine the need to charge somewhere else most likely to happen after a couple hours of driving, in which case a 15 minute break sounds like a good idea anyway.
Re:Solid-state cells will cut EV charging time and increase ... by brandmeyer on Wednesday May 11, 2022 @11:16AM (#31341199)
We did a road trip like this over spring break. Our last day included 700 miles of driving. Drive for 1.5-2 hours, charge for 12-15 minutes, driver swap, and go. It was easily the best road trip experience of my life. Looking back at the stupid exhausted crap I put myself through in my younger days I can only shake my head.
Re:Solid-state cells will cut EV charging time and increase ... by calewis on Wednesday May 11, 2022 @02:27AM (#31336458)
After 4 years of EV ownership this is exactly how it works for me and my friends, in the UK at least.
Re:Solid-state cells will cut EV charging time and increase ... by gambiting on Wednesday May 11, 2022 @05:56AM (#31337762)
Same here, also UK. Yes stops at public charging stations are longer than stops at petrol stations, but then I pretty much never "fill up" outside of home. So I have already saved hours and hours that would have been spent on filling up a normal petrol car - if I now have to go and wait 30 minutes at a rapid charger, that's still an overall massive saving compared to an ICE.
Re:Solid-state cells will cut EV charging time and increase ... by petesergeant on Wednesday May 11, 2022 @01:28AM (#31336131)
Sure, and I'd argue that 15m can seem like more than 3x longer than 5m does for just this reason. I don't think the minutes and perceived convenience scale linearly
Re:Solid-state cells will cut EV charging time and increase ... by theshrike79 on Wednesday May 11, 2022 @08:43AM (#31339097)
15mins of charging every 400-500km for a 80% reduction in travel costs seems fair to me.

10€/100km with diesel/gasoline and 2€/200km for electric is a complete no-brainer.

Re:Solid-state cells will cut EV charging time and increase ... by mrb on Wednesday May 11, 2022 @12:37PM (#31342349)
Think about it this way: with a gas vehicle you wait 5 minutes to refuel maybe once a week, so that's 4+ hours wasted per year. But with an electric vehicle that charges primarily at home you would recharge outside home maybe once every 2 months, so at 15 minutes per charge that's only 1.5 hours wasted per year.

4 hours vs 1.5 hours.

Re:Solid-state cells will cut EV charging time and increase ... by cevn on Wednesday May 11, 2022 @11:42AM (#31341597)
You also are forced to go to the gas station regardless of whether you go on road trips, so it's probably a wash. Can't remember the last time I went to one.
Re:Solid-state cells will cut EV charging time and increase ... by natch on Wednesday May 11, 2022 @03:03AM (#31336686)
You sound single. And oh so proud of how you have mastered pumping gas.

On a trip from San Jose to LA we stop once to charge for 10 minutes, arriving with plenty of charge to spare. I’m not too worried about the “extra” five minutes, which we can make good use of.

Re:Solid-state cells will cut EV charging time and increase ... by tomc1985 on Wednesday May 11, 2022 @01:23AM (#31336109)
Can it do this consistently without destroying the lifetime of the battery?
Re:Solid-state cells will cut EV charging time and increase ... by kurthr on Wednesday May 11, 2022 @01:57AM (#31336296)
Yes, it can easily do this hundreds of times with minimal loss of capacity (e.g. 5%) so long as temperature is well controlled, but depth of discharge is not really 0% (fully discharged) and it's not really 80% (fully charged).

They're made of of many hundreds of cells at different charge points, but likely 10-20% is as discharged as you're likely to get (without leaving the vehicle sitting for weeks on end) and 80% is as charged as you'll get. They have traded power density for lifetime and "charging rate".

Re:Solid-state cells will cut EV charging time and increase ... by ohgodplsno on Wednesday May 11, 2022 @02:07AM (#31336350)
Hundreds of times for an appliance like a car that should last 20+ years is absolutely dreadful. Plenty of people go through a gas of tank a week. A single year is 52 full charges. 5 years already puts it well above 250 charges.
Re:Solid-state cells will cut EV charging time and increase ... by teaearlgraycold on Wednesday May 11, 2022 @02:13AM (#31336383)
You wouldn't be exclusively charging at those speeds, though.
Re:Solid-state cells will cut EV charging time and increase ... by tomc1985 on Wednesday May 11, 2022 @10:10AM (#31340172)
Why not? I don't have an EV but in the US I've heard of people outfitting their homes with 240V sockets for higher-speed charging
Re:Solid-state cells will cut EV charging time and increase ... by teaearlgraycold on Wednesday May 11, 2022 @10:34AM (#31340539)
240V isn’t supercharging. That’s level 2. The difference between level 2 and supercharging is 17 kilowatts vs. 140 kilowatts.
Re:Solid-state cells will cut EV charging time and increase ... by adgjlsfhk1 on Wednesday May 11, 2022 @10:29AM (#31340471)
240v isn't high speed charging for EVs.
Re:Solid-state cells will cut EV charging time and increase ... by nharada on Wednesday May 11, 2022 @02:29AM (#31336472)
With typical EV workloads you'd only do this type of fast charging on a roadtrip or similar. The remaining time you'd be charging at home at much lower rates.

Not to say there aren't people who only charge at superchargers, but as L2 availability increases I imagine that will be less and less common.

Re:Solid-state cells will cut EV charging time and increase ... by tsimionescu on Wednesday May 11, 2022 @06:04AM (#31337818)
Most people live in apartment buildings, with tens of cars around the same building. I doubt at-home charging will be easy to scale - at the very least this would require major grid redesigns in most cities.
Re:Solid-state cells will cut EV charging time and increase ... by adgjlsfhk1 on Wednesday May 11, 2022 @02:49PM (#31344169)
putting 120 volt chargers in is really easy (you just need an outlet and a cable).
Re:Solid-state cells will cut EV charging time and increase ... by tsimionescu on Wednesday May 11, 2022 @05:56PM (#31346388)
How do you do that from the 8th floor? And will the power grid work well once 30 cars are charging each night from the same grid?
Re:Solid-state cells will cut EV charging time and increase ... by adgjlsfhk1 on Wednesday May 11, 2022 @07:30PM (#31347336)
people don't generally park their cars on the 8th floor. They park them in a parking lot, so that's where you would put the outlets. Power grids will have to expand to deal with the excess demand, but the transition to electric vehicles is happening slowly, so there's plenty of time to do so. Also, since electric vehichles are basically just giant batteries, they pair very well with solar and wind power. As solar power makes up a larger percentage of total power generation, it will become much cheaper to charge vehicles during the day when most of them are sitting in office parking lots. This will significantly reduce the "duck curve" problem, and make solar power even more effective than it currently is.
Re:Solid-state cells will cut EV charging time and increase ... by jon_adler on Wednesday May 11, 2022 @02:19AM (#31336417)
Most people probably wouldn’t require every charge to be fast this though. Many slow charging options, which do not put as much strain on the batteries, exist for the home and the workplace.
Re:Solid-state cells will cut EV charging time and increase ... by londons_explore on Wednesday May 11, 2022 @03:42AM (#31336947)
I have an early 20 year old EV...

The range is about 100 yards before the electrics die... I can get 500 yards if I drive carefully...

Luckily the charge time has also sped up with age - I can recharge in about 5 minutes to drive the next 500 yards!

Re:Solid-state cells will cut EV charging time and increase ... by Flockster on Wednesday May 11, 2022 @03:49AM (#31336996)
One tank of gas amounts to around 700km. After 5 years it would amount to ~175.000km. This car will most likely not live for 20 years without mayor replacements and repairs.
Re:Solid-state cells will cut EV charging time and increase ... by zeusk on Wednesday May 11, 2022 @04:06AM (#31337142)
Not sure which car you've been using but cars have been getting quite reliable.

I have a 2001 BMW 330i that's on around 363k miles (~580,000km) and still running the original factory drivetrain. The only parts replaced so far are wear parts in suspension and brakes (common with EVs) and some coolant pipes (probably also needed in EVs).

Re:Solid-state cells will cut EV charging time and increase ... by ohgodplsno on Thursday May 12, 2022 @07:41AM (#31352513)
????? At 175 000 km, you're barely getting into the "old" territory. I've driven cars that had 350k and were still doing fine. The only major replacement you should have had by then is changing the timing belt. And even then, some cars have a timing chain that just straight up doesn't break.
Re:Solid-state cells will cut EV charging time and increase ... by tomc1985 on Wednesday May 11, 2022 @10:02AM (#31340079)
> so long as temperature is well controlled

There are a lot (vast majority?) of climates for which this would be really hard to do.

Re:Solid-state cells will cut EV charging time and increase ... by silon42 on Wednesday May 11, 2022 @03:31AM (#31336875)
Yeah... My priority would be to have a 10-20kwh (for 2-3) days of use battery at home (which needs to do 3000+ cycles) charged via solar and then recharge the car slowly overnight.
Re:Solid-state cells will cut EV charging time and increase ... by themitigating on Wednesday May 11, 2022 @02:15AM (#31336399)
There is a cooling system to manage heat. Also, apparently the real issue for most tesla batteries is going above 90% or below 20% ish
Re:Solid-state cells will cut EV charging time and increase ... by tempestn on Wednesday May 11, 2022 @04:51AM (#31337417)
Time to charge to 80% is less important than time to charge to X kWh though. Given the storage to weight ratio of this battery is supposed to be much higher, even if it took the same time to charge to 80%, it would take less time to charge to a given range.
Re:Solid-state cells will cut EV charging time and increase ... by tra3 on Wednesday May 11, 2022 @12:54AM (#31335972)
Yeah but they are also claiming double the energy density. Very impressive if true.
Re:Solid-state cells will cut EV charging time and increase ... by Andys on Wednesday May 11, 2022 @01:01AM (#31336003)
This isn't really a relevant metric though; current EVs have sufficient energy density, its the price and shortages that are causing issues.
Re:Solid-state cells will cut EV charging time and increase ... by lrem on Wednesday May 11, 2022 @01:43AM (#31336208)
Well, the face value of a doubled range is that you may need only half of it. An eight minute charge to 47% instead of fifteen minutes to 80%. That's comparable to an ICE.
Re:Solid-state cells will cut EV charging time and increase ... by laserbeam on Wednesday May 11, 2022 @01:11AM (#31336047)
They do, but it their range still sounds daunting for someone who does not want multiple cars, and still wants the ability to do long range trips. Especially in places where charging infrastructure isn't great.

+80% range is probably a place where that argument is no longer relevant as it outranges most ICE cars.

Re:Solid-state cells will cut EV charging time and increase ... by jordanbeiber on Wednesday May 11, 2022 @01:28AM (#31336132)
An EV can probably cover 99,9% of trips made in densely populated areas. Very few trips are 350km roundtrip. I’ve had EV’s for the past four years and we rent an ICE when we’re going on ski trips and such. The continued saving on gas more than pays for it.
Re:Solid-state cells will cut EV charging time and increase ... by KyeRussell on Wednesday May 11, 2022 @01:34AM (#31336160)
Yes, but range anxiety still exists, and this would quell it, as well as make EVs viable for more niche use-cases. It's relevant.
Re:Solid-state cells will cut EV charging time and increase ... by throwawayboise on Wednesday May 11, 2022 @01:45AM (#31336224)
If renting a car wasn't such a PITA that would be somewhat tolerable.

You book a car, get to the rental place (only open 8am-5pm), and wait for 30 minutes while the one counter person working helps other people trying to pick up their cars. They get around to you, and they don't have the car you reserved. They try to upsell you on a larger car. You have to fool around with inspecting the car and noting any damage. If you miss anything, you fear they might try to charge you for it. You spend 15 minutes on other paperwork. They try to sell you all kinds of extra insurance. Finally, after about an hour, you're driving out in a car.

Re:Solid-state cells will cut EV charging time and increase ... by jordanbeiber on Wednesday May 11, 2022 @07:31AM (#31338370)
A couple of times a year, this is acceptable to me.

I have taken my kia e-niro on 1000km roundtrips, and this is totally acceptable as you have to stop for at least one meal, possibly two.

The convenience of an EV is fantastic - but I’m lucky to live in a building where charging is available.

Re:Solid-state cells will cut EV charging time and increase ... by nicoburns on Wednesday May 11, 2022 @05:32AM (#31337637)
Where I live there are car clubs with cars parked on residential streets which you can book on an app on drive straight off.
Re:Solid-state cells will cut EV charging time and increase ... by themitigating on Wednesday May 11, 2022 @02:46AM (#31336572)
Some rental companies have free programs where you just pickup the keys at a kiosk.
Re:Solid-state cells will cut EV charging time and increase ... by afarrell on Wednesday May 11, 2022 @04:57AM (#31337445)
Range anxiety could also be solved with marketing.

1. Design a graphic symbol that means, “this parking lot has a charging station”

2. Put that graphic on relevant signs as tall as the ones which advertise Exxon or Shell gas stations.

This would create the impression of ubiquitous charging.

Re:Solid-state cells will cut EV charging time and increase ... by sremani on Wednesday May 11, 2022 @02:09AM (#31336361)
Energy density is important. A lighter battery means more range for same charge because the vehicle is lighter.
Re:Solid-state cells will cut EV charging time and increase ... by me_again on Wednesday May 11, 2022 @01:06AM (#31336023)
Seems like an improvement in KWh/kg could make a big difference in weight, and hence in efficiency.
Re:Solid-state cells will cut EV charging time and increase ... by KennyBlanken on Wednesday May 11, 2022 @03:51AM (#31337014)
Sufficient for certain markets and applications, but less weight and volume is always better.

Less energy to accelerate, and smaller motors, lower powered drive electronics, and less demand on the battery (and the less current you draw from a battery, the lower the internal resistance losses, so weight really does matter.)

It's better for roads, for one; heavier vehicles, with higher ground pressure, chew up roads faster. More weight means longer stopping distances and less handling capability for the same amount of tire (and you can't just slap bigger, stickier tires on. Efficiency plummets) so this relates to safety. And mass mattes in a crash, too. Drivers are stunningly good at crashing into all manner of stationary objects. I suspect as EVs get more popular we're going to see much more serious car vs building crashes, for example.

The market for an EV eighteen wheeler explodes once you surpass the range a driver can legally drive in one day (you need more because otherwise there's a huge efficiency loss if the driver has to stop early in order to get a charge before running out of range, even if he's got the time logbook-wise. Ideally he's charging the rig while sleeping, though.)

Work trucks like the Sierra HD or F250/F350/F450's, etc. can't yet be replaced because giving them the equivalent battery capacity would result in a truck with a fraction of its normal cargo and towing capacity.

The livery industry can't really use EVs because charging stations are too far apart and too unreliable and too unavailable; while the range might be relatively close to a typical towncar's for a single tank of gas, obviously a towncar can be refilled in under 5 minutes from a fuel source almost anywhere along where it needs to go, with little wait for a free pump.

Performance car segment - right now EVs are only seen in GT class cars and sedans. Lots of people like lightweight, responsive vehicles (Miata, BR-Z, "hot hatches", etc) and you can't do that with current battery tech.

In vehicles made on platforms not fully committed to an EV powertrain, the battery ends up eating up passenger compartment space, cargo space, or ground clearance. Handling is more stable due to lower Cg, but less capable due to a pretty massive increase in weight. So: minivans, cargo vans, passenger cars...

Re:Solid-state cells will cut EV charging time and increase ... by Andys on Wednesday May 11, 2022 @08:43PM (#31347870)
Unsure why I'm downvoted. What I meant was: Yes, energy density would be nice to improve, but is not what is stopping people buying EVs currently.

Imagine if they halved in cost but kept the same energy density. Yes, driving 1 tonne of batteries sucks, but I'd gladly do it versus my current polluting ICE, if the appropriate vehicle was available at an appropriate price.

Re:Solid-state cells will cut EV charging time and increase ... by outside1234 on Wednesday May 11, 2022 @01:36AM (#31336173)
EVs have enough range but many get there with lots of batteries which are heavy. This reduces the eMPG of something like the bmw i4 or vw id4 to 80 (vs. 130 for Tesla model 3) which reduces their efficiency advantage over IC cars.

This will dramatically help with that.

Re:Solid-state cells will cut EV charging time and increase ... by ohgodplsno on Wednesday May 11, 2022 @02:11AM (#31336368)
driving 1 ton of batteries around is very much worse than driving 500kg of batteries.
Re:Solid-state cells will cut EV charging time and increase ... by tra3 on Wednesday May 11, 2022 @01:15AM (#31336068)
The article is pretty ambiguous. They say the energy density is doubled vs Tesla, and then then they compare the charge rates. They never indicate the capacity of the 15 minute charge. What exactly are they comparing.