this post was submitted on 04 Jul 2023
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Japanese firm believes it could make a solid-state battery with a range of 745 miles that charges in 10 minutes

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[–] AlternateRoute@lemmy.ca 77 points 1 year ago (2 children)

They have been "claiming"/ "announcing" this breakthrough since 2017 repeatedly. They STILL haven't figured out how to mass produce it affordably to making it meaningful. They keep pushing out the date for when it will arrive for many years now.

[–] loops 32 points 1 year ago (2 children)
  • Release statement claiming breakthrough
  • Attract investment money
  • Run out of money
  • Release statement claiming breakthrough
  • Attract investment money
  • Run out of money

Repeat until product is complete or no one will invest.

[–] phlemmy@lemmy.ml 8 points 1 year ago

I """claim""" the planet Jupiter

[–] phlemmy@lemmy.ml 3 points 1 year ago

I """claim""" the planet Jupiter

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[–] Irv@midwest.social 29 points 1 year ago

Since Toyota is way ahead with hybrids but behind with EVs, this would be a way to tell the public, "wait, don't buy a competitor's EV, because we'll have something 100x better in a year or so."

I hope I'm just being cynical, because solid state batteries do sound awesome. I wonder was the weight difference would be

[–] pokexpert30@lemmy.pussthecat.org 27 points 1 year ago (2 children)

Oh fuck off with that charging times.

Assuming this battery will be 150kwh (which is a conservative estimate for such a range)

Let's ignore even heat loss So you need to 150kwh in 10 minutes, wish equals to 900kw of immediate charging speed.

Now imagine 20 of those power inputs connecting/disconnecting on a local power management substation.

Not fucking gonna happen.

[–] xthexder 3 points 1 year ago

Basically every other fast charge time is quoted from 0-80% or 20-80%, something like that. So it's probably capable of around 600kw charging. I don't think we have chargers that fast, but maybe you could plug in 2x 350kw chargers in at the same time, lol

[–] nowrongnotes 3 points 1 year ago (1 children)

Even if the power load on the grid was doable, heat dissipation is also a huge problem. Current DC fast chargers max out at 350 kW (in theory, my car supports charging at that rate but the best I've seen in real life is around 190kW), and the liquid-cooled cables are already heavy/bulky enough to give some women and older folks a hard time. I can't imagine a practical way to handle 2 or 3 times the current without making the cables something like 6 inches in diameter and weighing a couple hundred pounds.

Tbh cable heat dissipation is not really a problem if you increase battery voltage, which those solid state batteries have theorically no problem doing. To keep current cable we would need 3200v batterie, which I could see happening.

[–] sin_free_for_00_days@lemmy.one 24 points 1 year ago (2 children)

I've wanted to believe in breakthrough battery technology so many times and been let down. I'll wait until it hits the market before getting excited. Even this article is pretty vapor-ish:

The world’s second largest carmaker was already pursuing a plan to roll out cars with advanced solid-state batteries, which offer benefits compared with liquid-based batteries, by 2025.

Then a little further down:

The company expects to be able to manufacture solid-state batteries for use in electric vehicles as soon as 2027

I'm waiting for the,"By 2030 we'll definitely be able to use these batteries in our 2035 models. You'll see this in 2040 and the sky will open up with sunshine and birds will sing."

[–] atheos@lemmy.atheos.org 2 points 1 year ago (2 children)

all the technology you enjoy today was breakthrough not too long ago

[–] groupDiscount@lemmy.one 5 points 1 year ago (1 children)

And typically real breakthroughs of this magnitude are announced with more polish than a throwaway guardian article.

[–] Umbrias 2 points 1 year ago

Surprisingly not always, many aren't announced at all. i wouldn't hold my breath on this coming out soon though, no.

People in Africa age a day every day.

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[–] JillyB 12 points 1 year ago (4 children)

last year it recalled 2,700 of its first electric vehicles because of concerns the wheels could fall off.

I set up the production line for this hub unit. This news has been really annoying because it meant we had to scramble to install a bolt press machine on this line.

[–] jadenity 8 points 1 year ago (2 children)

It sounds like you're implying you wouldn't have had to install it without this news breaking. Is that the case? I'm curious about this topic if you care to elaborate. What is a bolt press machine? How has this news affected you?

[–] not_an_egg 5 points 1 year ago (4 children)

I am hoping it is more of a "they should have seen this coming" kind of thing. In such a way that they should have had ample time before the line was made active to install it.

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[–] JillyB 2 points 1 year ago

A bolt press is what it sounds like. It presses the studs into the hub unit (idk why we call studs bolts). I think we, as a company, knew about it before the news broke. We had to re-configure the line to add a machine that wasn't there originally and now we need to changeover between the bolt-type and bolt-less. This changeover is more involved than you might think since some of the components were redesigned for the bolt-type, necessitating some new tooling.

[–] Quexotic 3 points 1 year ago (2 children)
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[–] SkepticElliptic 2 points 1 year ago (3 children)

Were you not pressing in the studs?

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[–] VoxAdActa 11 points 1 year ago

The quickest way I've found to separate the articles that are going to be meaningless waste-of-time fluff pieces from ones that might be informative is to find the verb in the headline.

Is it something like "claims", "calls for", "praises", "criticizes", or "expects"? Fluff. If something deserving of a more concrete, direct verb had happened, the headline would have said so. Verbs like "slams" or "attacks" or "demands" are even worse; they're aggressive and enthusiastic about their content but still can't make the claim something actually happened or changed.

If the verb is preceded by "could", "might", "maybe", or similar, especially with regard to tech news, it's also probably an empty slow-news-day article, but those words aren't necessarily as hollow as the ones mentioned above. Sometimes they'll contain interesting information about the current state of things, even if they're just going to lead you on a merry speculation romp about the optimistic/horrifying future.

[–] Klinkertinlegs 8 points 1 year ago (2 children)

Yeah, chuck in on the pile of “battery innovations” that get announced but never come out. It’s a large pile.

Hydrogen is the future.

[–] mreiner 13 points 1 year ago (1 children)

Why do you feel hydrogen is the future?

From my understanding, it’s more of a fuel than a storage medium so they kind of play different roles. On top of that, I thought it’s currently pretty difficult to store outside of pretty extreme conditions and the best way to create it at the moment is by burning fossil fuels (natural gas).

I’m not an expert, so let me know if I got any of that wrong!

[–] LonelyLarynx 11 points 1 year ago

TL;DR: You're correct, in my professional opinion.

The catalyst in most hydrogen fuel cells are still too expensive and have a limited life. Hydrogen will mostly be sourced as a waste product from oil and gas extraction (though it could be done with clean electricity and electrolysis), that's why oil and gas companies are becoming so interested in pushing hydrogen (see the successful "clean" natural gas campaigns, but depending on how you measure it natural gas can result in more emissions than coal and is just a bunch of greenwashing. Same would happen with hydrogen in my opinion). Additionally, we'd have to build out an entire hydrogen delivery infrastructure that serves only that purpose. We'll just end up with commercial fuel stations like we have now. Fuel cells (for many fuels) can make sense in very remote applications, or industrial applications where specific waste gasses can be turned into supplemental electricity right on site.

Battery-electric on the other hand is much more flexible and fits into our existing infrastructure better. It's not just power dense batteries for cars; it's (maybe gravity) batteries for communities, safe and long-lived (maybe salt) batteries for homes, better batteries for our electronics. Research in one area can support improvement of the others. They all connect to the same electricity grid so the energy can be shared among applications. Batteries play a role in decentralizing and democratizing energy (today you can put PV on your house, charge your car or home battery, use your car to power your house in a power outage, etc). As mentioned we can use greener and cleaner batteries (even completely non-chemical) in some applications, and one day we can hopefully get to the point of using ultra- or super-capacitors in place of high-density chemical batteries. In the mean time we have batteries that work and are getting quite affordable, we can transition to this solution now without waiting for a miracle breakthrough, then continue to iterate the technology over time.

[–] Skiptrace@lemmy.one 8 points 1 year ago (1 children)

Hydrogen... Isn't really the future. It could be the future for Electricity Generation. But, for cars? No way Jose.

[–] Klinkertinlegs 1 points 1 year ago
[–] Await8987@feddit.uk 5 points 1 year ago (5 children)

The important question is what is so wrong with the now countless existing 200/300 mile evs that charge in less than 30 minutes?

[–] Umbrias 17 points 1 year ago (3 children)

300 miles isn't enough distance for a day of travel and lots of places don't have charger availability still. What's wrong with approaching parity in user experience to gasoline vehicles? It will only accelerate their use, and 700 miles in winter is going to be only maybe 300 miles.

[–] irasponsible 14 points 1 year ago (1 children)

A 30 minute charge for every 4 hours of driving is already practical for a long drive. Every safety organisation and fatigue management plan on the planet says you need to stop more often than that for fatigue anyway.

If some is regularly driving more than 200mi/320km in a day (more than the average car drives in a week) without a break on those trips, then a hybrid car is probably a better bet for the foreseeable future.

[–] Umbrias 18 points 1 year ago (4 children)
  • cars hold more than 1 person
  • mountains mean that four hours is now three hours
  • cold weather means that four hours is now two hours
  • mountains plus cold weather means four hours is now one and a half hours
  • much of the (us) country lacks charging stations to support that, or even the infrastructure to support the charging stations
  • hybrid cars are the worst of both worlds
  • 300 miles is just barely under the safe distance between most major towns \cities in parts of the us
  • that means you barely or don't get to your location on one charge
  • current charging infrastructure means taking a couple hours extra on many trips right now. At least some of this is improving, but very slowly.

This is a very real problem. We know, we have family with an ev who need to travel to us to visit on occasion.

[–] VoxAdActa 8 points 1 year ago (2 children)

300 miles is just barely under the safe distance between most major towns \cities in parts of the us that means you barely or don’t get to your location on one charge

I've never owned a car in my life that gets more than 300 miles on a single tank of gas.

[–] Mummelpuffin 4 points 1 year ago

And there's plenty of gas stations you can stop at to fill up in a few minutes.

[–] shoobert 2 points 1 year ago

What do you drive? A 2005 Honda civic gets 330+ miles on a full tank. Even a modern 4WD truck can hit 400+ miles total range.

[–] Vodulas 2 points 1 year ago (4 children)

My partner and I have owned an EV since 2017, so I am going to weigh in with my experiences.

cars hold more than 1 person

I think this is implying that you can rotate drivers without breaks to get more miles, and that is also not great. Yes, you're stopping briefly to rotate seats, but that is not really a break unless you are taking a 15-30 minutes to nap or walk around a little bit. I've done this and it is not fun and does not feel like you have taken any breaks.

With the EV, we are forced to stop more on road trips, and we typically arrive feeling like we can actually do something rather than crash in the campsite/hotel. For reference, a road trip from Seattle to the middle of nowhere Idaho took a little longer, especially with a car that only had 180 miles of range, but the in the end we still got there in plenty of time and did not feel like going directly to bed.

mountains mean that four hours is now three hours

If you are going uphill only, yes. That being said, regeneration has got to the point where if you are going downhill, you'll recoup most of that lost energy.

cold weather means that four hours is now two hours

This is not true at all. 50% range loss is not only not common, the top selling EVs get at most 30% range loss. Most are in the 15-20% loss range.

https://www.recurrentauto.com/research/winter-ev-range-loss

Basically, if you live or travel in an area with cold weather, make sure you get a car with a heat pump.

mountains plus cold weather means four hours is now one and a half hours

Again, if you are going uphill only in cold weather this is going to be closer to 2-2.5 hours based on this metric, but most people go up then down hills when driving.

much of the (us) country lacks charging stations to support that, or even the infrastructure to support the charging stations

This is absolutely the biggest issue. If you are sticking to the major highways you are usually fine, but more rural ares are seriously under served.

300 miles is just barely under the safe distance between most major towns \cities in parts of the us

Someone else already went into way more detail on this one, but I will absolutely agree that the rural US needs more infrastructure.

that means you barely or don’t get to your location on one charge

This can and does happen. Trip planning requires a bit more effort because of it for sure, but there are tools (A Better Route Planner and PlugShare) that can help. If you take a lot of trips, getting a Tesla Tap and making sure you get hotels with Tesla destination chargers helps a lot.

current charging infrastructure means taking a couple hours extra on many trips right now. At least some of this is improving, but very slowly.

This really depends on the DC fast charging ability of the car and the charging station infrastructure (which needs a ton of work). Most of the cars currently available have 150kWh fast charging, which will take you about 20-30 minutes per charge. With the Hyundai/Kia eGMP platform you can get 350kWh charging, which will take you about 15 minutes per charge if you get a 350kWh charging station. The only car I would not recommend if you road trip is a Chevy Bolt, which only has 50kWh DC fast charging.

For more info you should check out MKBHD's video about road tripping against a gas car or Aging Wheels/Technology Connections video about road tripping with a Hyundai Ionic 5 (with 350kWh charging).

As an aside, as much as I hate Elon/think Teslas are not great cars, they are starting to open their charging network and big car companies are adopting their charging port. This will help a lot with infrastructure since they have one of the biggest networks in the US, and with an adapter you can use CCS chargers with a Tesla port, so you're not loosing out on non-Tesla chargers.

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[–] healthetank@lemmy.ca 3 points 1 year ago (7 children)

I've got the 2021 Kona EV and while you do lose range in the winter, it's more like 100km/450km. That's with intense grip heavy winter tires and the heater running. In Ontario, so regularly ran it with -35c temps. It's cold and you lose some range, but not 400miles out of a 700mile range

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[–] seang96@spgrn.com 2 points 1 year ago

Couldn't solid state batteries potentially be better in cold weather? Even if it was the same it would be more like 420 miles since Lithium batteries are around 40% less efficient in the average winters.

[–] NattyNatty2x4 7 points 1 year ago

Anything that requires long travel distances...

[–] spaghettiwestern 5 points 1 year ago* (last edited 1 year ago)

Rented a Tesla for an overnight trip of about 250 miles. Had to top it off before leaving, again during the trip (the 300 mile range it is supposed to have was absurdly optimistic) and yet again before returning the car. We spent easily 90 minutes dealing with the charging the damn car vs. a single 5 minute fuel stop for a gasoline car.

For around town 250 miles is plenty, but for even a short, one night road trip the time and effort required to charge a current generation electric car is ridiculous.

[–] SkepticElliptic 3 points 1 year ago

Battery life, safety, cost, sustainability.

[–] Mummelpuffin 2 points 1 year ago

To add to what's already been said:

Typical range numbers are highly optimistic, consider that many of the people who are traveling long distances are also towing a trailer of some sort-- Electric trucks seem nice until you realize that the range gets cut in half the second you start pulling something moderately heavy.

[–] Face 5 points 1 year ago

I still remember graphene batteries being a thing for 10 years now, and the most we've gotten so far is GaN charging bricks. Methinks that companies just claim stuff like this to get shareholders excited.

[–] Gork 2 points 1 year ago (2 children)

Hmm I thought Toyota was focusing more on Hydrogen powered cars as a long-term strategy rather than EVs.

[–] Swallowtail 10 points 1 year ago (1 children)

Yes, in the US they have gone so far as to lobby against EV adoption and run anti-EV commercials in favor of trying to get people to buy their hybrids. They innovated earlier with the Prius but then stagnated and are behind now and instead of trying to catch up, they spent time and money trying to block competition. Really made me dislike the company despite the stellar reputation of the quality of their vehicles.

[–] VoxAdActa 3 points 1 year ago (1 children)

Especially since hydrogen as a fuel is a dead-end, so far as I can tell. In addition to the net energy loss that come from separating hydrogen from whatever else it's attached to in the precursor material (please tell me they're not using water for this...), who is going to want to drive a 2025 Toyota Hindenburg?

[–] abir_vandergriff 6 points 1 year ago (1 children)

I don't disagree with the rest of your comment at all, but for the Hindenburg comment - hydrogen vs lithium vs gasoline is all about the same in terms of how dangerous it is for it to catch fire.

A tank of gasoline has about 4 times the energy of most hydrogen tanks in cars, and can explode at much lower oxygen concentrations. Meaning they explode bigger, easier.

This same issue applies (in different ways) to gasoline vs lithium. Gas cars have always been a wheeled Hindenburg.

[–] AndrasKrigare 2 points 1 year ago

On top of that, gas stays near the ground after an accident, whereas hydrogen will float away.

[–] BarryZuckerkorn 2 points 1 year ago* (last edited 1 year ago)

They've pivoted. There's money to be made in EVs, so they'll go ahead and get on board (despite saying otherwise 2 or 3 years ago).

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