this post was submitted on 02 Aug 2024
876 points (100.0% liked)

Technology

68599 readers
4551 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots


founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 123 points 8 months ago* (last edited 8 months ago) (6 children)

Every day it feels like we're getting closer to battery revolution.

It's been "every day" for as long as I can remember. Some new world-changing battery tech is right around the corner, but never manages to appear in consumer vehicles...

[–] [email protected] 90 points 8 months ago* (last edited 8 months ago) (1 children)

Battery tech has still come a long way since say 10 years ago, even though the "next gen" stuff hasn't made it to scaled production. Looks like this is the beginning of scaled production, though.

[–] [email protected] 14 points 8 months ago (1 children)

Looks like this is the beginning of scaled production, though.

Production is a tiny link in the supply chain.

According to the article they've sent them to manufacturers for testing and that's it.

Even if they were able to make them they'd still be impossibly expensive for decades, as the implications of such a technology would be gargantuan.

[–] [email protected] 60 points 8 months ago* (last edited 8 months ago) (1 children)

Nah, see the battery density graph here. Batteries have made great progress already, and it's accelerating because suddenly there are trillions of dollars on the line for anyone that can make big strides in battery technology.

[–] [email protected] 5 points 8 months ago* (last edited 8 months ago) (2 children)

Nah, see the battery density graph

Yah, I see your battery density graph and the batteries in question would blow a hole in that chart:

Samsung’s oxide solid-state battery technology boasts an energy density of 500 Wh/kg, nearly double the 270 Wh/kg density of mainstream EV batteries.

That's without even getting into the charging rates, which are impossible because you can't even deliver power to the car at that rate, even if it could take it.

suddenly there are trillions of dollars on the line for anyone that can make big strides in battery technology.

What makes you think that's "sudden"?

[–] [email protected] 10 points 8 months ago* (last edited 8 months ago) (1 children)

Yah, I see your battery density graph and the batteries in question would blow a hole in that chart, and several charts above it.

I'm not sure if we are looking at the same chart. The chart goes up to 500 Wh/kg, the same as this new Samsung battery as per the original article. It's may well be the same battery that gives the chart that value, but notice the years prior it gets higher and higher up to that value.

It might be 10 years away from being the mainstream battery but the battery technology that was 10 years away 9 years ago is almost here.

What makes you think that’s “sudden”?

I was meaning how EVs created a consumer market for huge batteries where prior to that the biggest battery in your house might have been a power tool. But you're right, there was a premium market for emerging battery tech and it increases along a scale like anything else.

[–] [email protected] 4 points 8 months ago (2 children)

It might be 10 years away from being the mainstream battery

Yes, that was my point, thank you.

[–] [email protected] 7 points 8 months ago (1 children)

I mean, lithium cells were used for fringe use cases 20 years ago, now they are seemingly everywhere. The difference with this tech is that they know it's currently expensive, so are aiming for use cases where the added cost is justifed. Give it 5 years and the tech will more than likely become easier to produce, lowering costs. That and sodium batteries are probably going to dramatically lower cost for grid storage, which should make it easier to have consistent power delivery.

[–] [email protected] 2 points 8 months ago (1 children)

I don't understand what this has to do with my comment. I'm not disputing that battery technology is improving. I'm disputing that there's going to be any sort of quantum leap in capacity or charging speed in the near future.

[–] [email protected] 3 points 8 months ago (1 children)

I read your argument as being that since we aren't quantum leaping ahead with technology, it's a bit of a wash with the pushes for future battery standards. But my point is that this battery update, while not being a 10x in performance, is more likely a 2x and will be viable to scale with pricing decreases as time progresses. I'm in the trucking sector, and one of the things I have noticed about transitioning to electric heavy duties is that a lot of the issues aren't completely on battery density, but rather that there isn't an infrastructure that can charge the batteries at high voltage without beefing up the power grid around stations. If you could instead give a cheap enough battery backup to create a buffer that fills up during lower use hours, then a lot more of the solutions for that could charge ev trucks quickly would make more sense (it's actually what has made the Tesla Semi have such good numbers). It's stuff like this that actually might push the transition, which has to happen, not waiting for next quantum leap.

[–] [email protected] 1 points 8 months ago

I read your argument as being that since we aren't quantum leaping ahead with technology, it's a bit of a wash with the pushes for future battery standards.

I've no idea how you got that in your head. I'm assuming it's Freudian.

load more comments (1 replies)
[–] [email protected] 2 points 8 months ago* (last edited 8 months ago) (1 children)

There is a ~~solid state~~ sodium battery factory being built in Japan, I think, and one in America. (Yes, I mixed up my two battery technologies, a common problem in a stagnant field...) But yes, real life isn't a game, you can't immediately use new tech as soon as it becomes viable, and factories take time to build. That doesn't mean that advances haven't been constantly occurring, just like advances continued to occur with NiMH battery technology a decade after lithium was mainstream. Partly, no doubt, because factories are expensive, they take time to build, and companies like to maximize the profits from their investments.

[–] [email protected] 2 points 8 months ago (1 children)

That doesn't mean that advances haven't been constantly occurring

No one said they haven't. Please note the "world changing" part of my comment. I'm not talking about iterative advancements, I'm talking about things like solid-state and sodium batteries. Things we've been reading about for decades that are quantum leaps in battery technology.

In the case of the OP, we're talking about doubling battery density and charging speeds well in excess of what you could actually ever get to the car.

load more comments (1 replies)
[–] [email protected] 66 points 8 months ago (2 children)

Battery tech is constantly having huge breakthroughs. They are just come in small steps.

I mean a smart phone is literally a battery powered computer. It's absolutely astounding compared to what we had 10/20 years ago.

[–] [email protected] 13 points 8 months ago (2 children)

Battery tech is constantly having huge breakthroughs. They are just come in small steps.

My guy, those are opposite things...

[–] [email protected] 14 points 8 months ago (3 children)

Not really. They have massive breakthroughs that increase capacity and charging hugely.

People just seem to expect some world changing development constantly.

load more comments (3 replies)
[–] [email protected] 1 points 8 months ago (1 children)

Depends on how you define "constant". Battery prices have been falling year over year, no thanks to technological improvements.

If we're referring explicitly to Academia and R&D, then OP is correct. You're main point is that these huge breakthroughs haven't affected the market, but OP isn't arguing that.

You're both talking past each other.

[–] [email protected] 1 points 8 months ago (1 children)

Depends on how you define "constant".

No it doesn't? Because there have been none. There have been steady and iterative advancements.

OP is correct

When was OP involved in this conversation?

[–] [email protected] 1 points 8 months ago

There have been steady and iterative advancements.

Steady imo is a synonym for constant, and revolutionary breakthroughs can be subjective if referring to industry or academia.

When was OP involved in this conversation?

Apologies. I sometimes refer to an OP as the Original Poster of a thread in a given post, but perhaps a better use of language would be OC for Original Commentator.

[–] [email protected] 12 points 8 months ago (3 children)

Only thing I'm upset with is that we get more battery capacity, but not longer battery time. I want to clock my phone down to save power, but that's not allowed.

[–] [email protected] 22 points 8 months ago (1 children)

Most phones have some sort of "Ultra power saving" mode that gives a lot of battery life.

[–] [email protected] 2 points 8 months ago

I always use the power saving mode, however my experience is that the battery time is almost the same irregardless of battery capacity (comparing arbitrarily över the years)

[–] [email protected] 9 points 8 months ago

It's absolutely allowed.

It's not as good as previous versions but I am running stock android and I have wifi power saving and phone (background) power saving modes available. I just checked and the estimate of time until zero percent battery goes from 22 hours to 28 hours with the node that limits backup processes, and that is with 59% on the battery.

There was a power save mode on my old phone that made everything grey screen and stuff that was way better. I think I enabled it for a camping trip once and used like 20% battery in 3 days.

[–] [email protected] 4 points 8 months ago (1 children)

Yeah the more power phones have available the more manufacturers use.

It's why I miss replaceable batteries.

[–] [email protected] 4 points 8 months ago

That made me think of the fairly low res picture of the menu screen from Mario Bros on the NES with the caption "this one image takes up more memory than the entirety of the Mario Bros game code.

Good lord...I remember getting a 1GB HDD and thinking "welp, never gonna use that up" then a few years later installing Diablo2 and seeing it was 1.1gb...

[–] [email protected] 15 points 8 months ago (2 children)

The difference is this is actually shipping to manufacturers.

[–] [email protected] 10 points 8 months ago (1 children)

Solid state batteries are already being produced at scale. It's happening.

[–] [email protected] 2 points 8 months ago (1 children)
[–] [email protected] 1 points 8 months ago (2 children)
[–] [email protected] 1 points 8 months ago

That guy did not tear it down or do any testing or validation. This guy did and it was not what it was cracked up to be:

https://www.youtube.com/watch?v=-pu8hs6hmyk

[–] [email protected] 4 points 8 months ago

...for testing.

[–] [email protected] 5 points 8 months ago* (last edited 8 months ago) (1 children)

There may not be a revolutionary discovery, but we are nearing a tipping point where battery makes more sense for most disconnected power storage than anything else.

The cell phone I had 30 years ago had a battery pack that was about as big as my current cell phone and was 500 mAh. My current cell phone has a little battery tucked away in it that stores 4000 mAh, recharges about as fast, and can be recharged more before it loses a significant amount of its capacity. It also costs about 1% per mAh of the price of that battery from 30 years ago.

Just because you haven't bothered to investigate advances in battery technology doesn't mean significant advances haven't occurred.

[–] [email protected] 2 points 8 months ago (1 children)

There may not be a revolutionary discovery, but we are nearing a tipping point where battery makes more sense for most disconnected power storage than anything else.

...what else are you using for "disconnected power storage" than batteries?

The cell phone I had 30 years ago had a battery pack that was about as big as my current cell phone and was 500 mAh.

Please tell me what part of my comment led you to believe I was insinuating battery technology had not improved in the last 30 years...

Just because you haven't bothered to investigate advances in battery technology doesn't mean significant advances haven't occurred.

Please read better.

[–] [email protected] 2 points 8 months ago (1 children)

Fossil fuels are currently the largest disconnected power storage by overall power used. You know, the thing cars use when they aren't EVs. You may have heard of diesel and gasoline generators, or oil-fueled ships.

As per the previous part of my comment that you quoted, my point was that incremental changes can accumulate to the point where at some point revolutionary changes can occur. We increased capacity and longevity by a factor of 10 over 30 years, have a new technology hitting mainstream, and another that could double power density in the next 5 to 10. Yet you seem skeptical that's possible, in spite of the decades of advances we already have made.

[–] [email protected] 1 points 8 months ago (1 children)

Fossil fuels are currently the largest disconnected power storage by overall power used.

Fossil fuels do not store "power" at all.

incremental changes can accumulate to the point where at some point revolutionary changes can occur. We increased capacity and longevity by a factor of 10 over 30 years

If it takes place over the course of 30 years, it is not "revolutionary".

Yet you seem skeptical that's possible, in spite of the decades of advances we already have made.

I am skeptical because of the decades of advances that have been promised time and time again but have not been made...

I am not remotely skeptical of iterative advancements.

[–] [email protected] 1 points 8 months ago (2 children)

Fossil fuels do not store "power" at all.

Now, if you're quibbling about the term power vs. energy, I can't really be bothered with it. If you aren't, what exactly do you think is the reason we use gasoline in vehicles than because it's a highly portable source of energy?

load more comments (2 replies)
[–] [email protected] 2 points 8 months ago

feels a bit like fusion power

[–] [email protected] 1 points 8 months ago (2 children)

True, as far as big leaps go there hasn't mean anything since the introduction of lithium based batteries to the market.

Until now. This is it and they have production working. Safer than lithium. Longer lasting, quicker charging, should perform fine in extreme cold, more energy dense, and solid state.

The next big thing is finally here.

[–] [email protected] 1 points 8 months ago* (last edited 8 months ago) (1 children)

I know you're correct, since there are now solid state batteries on the market which outperform liquid-electrolyte LiPo batteries, but just stating "we're at the tipping point" without dropping any link as evidence makes your claim very unconvincing.

[–] [email protected] 1 points 8 months ago (2 children)

That guy on Undecided is a bit of a dunce. He never actually checked or tested in any way that the yoshino psu uses real solid state batteries. He just bought it from Amazon and it's advertised on Amazon as having them.

But they likely aren't solid state batteries in that psu he bought. He even admitted as much in a podcast just last week.

Other people have done teardowns on those yoshino batteries and have apparently found that they are not solid state. They still contain a liquid.

Here. I think he talks about it somewhere around 25 minutes in. https://www.youtube.com/watch?v=aciA1dKz5iE

load more comments (2 replies)
[–] [email protected] 1 points 8 months ago (1 children)

Until now. This is it and they have production working.

I hope you're right, but I'll believe it when I see it.

[–] [email protected] 2 points 8 months ago (1 children)

A giant name like samsung and the auto makers they've teamed up with like Toyota aren't going to bullshit about the batteries being in production. There's no benefit to doing so. It's not like they're trying to raise investment capital.

[–] [email protected] 1 points 8 months ago (1 children)

Samsung is not the "bullshitter". Samsung did not write this article. Samsung didn't claim that these will be in cars or anywhere else anytime soon.

[–] [email protected] 1 points 8 months ago (1 children)

Yes they have. Not from this article, though. Same for Toyota. They announced a 2027(likely) solid state battery EV months ago.

As for "samsung didn't claim this", they put the battery on display at the trade show in Seoul, and it's been reported by tons of outlets. Samsung has very clearly announced it.

[–] [email protected] 1 points 8 months ago

No they haven't. Samsung didn't say they have a 600 mile battery. The author did. Which is nonsense for a variety of reasons, which is exactly my point

They announced a 2027(likely) solid state battery EV months ago.

...likely? Based on what?

they put the battery on display

No one is trying to claim the battery doesn't exist so I'm not sure what your point is.