this post was submitted on 23 Oct 2025
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" CATL has thrown its hat into the ring with the Naxtra sodium-ion battery, with 175 Wh/kg and 10,000 lifetime cycles along with operation from -40°C to 70°C. CATL is planning a start-stop battery for trucks using the technology. It has the potential to replace lead-acid batteries. CATL has announced battery pricing at the cell level in volume at $19/kWh. "

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[–] buddascrayon@lemmy.world 39 points 2 days ago (1 children)

So, how long do you think 'til the GOP Congress enacts a law blocking said technology and company in order to protect Tesla and oil interests of the United States fascist oligarchy?

[–] surph_ninja@lemmy.world 4 points 1 day ago* (last edited 1 day ago)

You think the Dems won’t help them do it? The Democrats are already backing tariffs and import bans on Chinese cars and solar panels. And I haven’t seen Dems calling out the bans on lab grown meats.

They will engage in the same protectionism, because they’re paid off by the same donors.

Oh yeah, I forgot the Democrats also helped ban cancer vaccines and diabetes cures from Cuba and China. Wake the fuck up.

[–] Teknikal@eviltoast.org 3 points 1 day ago

So is Sodium actually a good thing I know the silicon batteries being pushed hard now in Phone are a bit smaller but generally are suspected to have a quite short lifetime in comparison to standard.

[–] khannie@lemmy.world 82 points 2 days ago (6 children)

For anyone wondering what "10,000 lifetime cycles" means, it's full charge / discharge to the point that the batteries are at 80% of original capacity so 10,000 is to me an absolutely incredible number.

A typical phone battery is rated for about 500 (you can massively improve this by not charging it beyond 80%).

[–] Overspark@piefed.social 44 points 2 days ago (11 children)

This also means that, when you buy a car with say a 500 km range, that the battery will last for 10,000 x 500 = 5 million kms. That is an absolutely insane number compared to cars that are on the road right now. And one you will obviously only reach if the rest of the car can keep up. EVs are already doing well compared to ICE cars in this regard, but this is almost an order of magnitude larger than the current status quo.

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[–] gandalf_der_12te@discuss.tchncs.de 7 points 2 days ago (2 children)

10,000 lifetime cycles

so, 30 years if you charge/discharge it once daily?

[–] Kazumara@discuss.tchncs.de 2 points 1 day ago* (last edited 1 day ago)

No, 27,38 years

[–] Allero@lemmy.today 6 points 2 days ago
[–] DupaCycki@lemmy.world 12 points 2 days ago (6 children)

A typical phone battery is rated for about 500 (you can massively improve this by not charging it beyond 80%).

This 80% thing is incredibly simplified and not even always accurate. Personally I charge to about 95% and my phone batteries remain at 98-100% condition after 2 years of everyday use.

Limiting yourself to 80% doesn't really make sense. You're losing 20% capacity instantly, instead of losing it slowly over a few years. To be fair, a lot of people treat their devices so poorly that they may hit the 80% in less than 12 months, so I guess there's that.

[–] spongebue@lemmy.world 12 points 2 days ago (1 children)

I keep my car charged to 80% to help with battery degradation, and here's why:

  • Most days, I don't use more than 30% of my battery capacity (roughly 75 miles/120km). Even that's high. I don't care if that means I go from 100%->70% or 80%-50% when I'll charge back up again overnight

  • It's not a permanent setting! If I do go on a longer trip, I'll bring it back up to 100% and not sweat it!

From what I've heard, charging beyond 80% increases the degradation rate, meaning time spent at that level is an important part of the equation. If I keep my phone plugged in overnight and at my desk, I have a lot of time at full charge that I'm not really using, but if I know I'm flying that day or running errands all day I can pop it up to 100% and it will be a non-degraded 100%

I've had my S20 far longer than my car and never did limit its charge. It's fine for me, but the battery is sure showing its age.

[–] AA5B@lemmy.world 1 points 1 day ago (1 children)

I don’t see this as a valid comparison.

  • replacement phone batteries are really not that expensive. Don’t overthink it. Is it really a problem you might spend $50-$100 in three years to replace the battery?
  • car batteries are not just much more expensive but they’re also overkill. Charging to 80% is more than enough for almost everyone’s daily driving on most vehicles, so why charge more?
[–] spongebue@lemmy.world 1 points 1 day ago* (last edited 1 day ago) (1 children)

Maybe user replaceable phone batteries are making a comeback, but with the way my phone is pretty much sealed up I wouldn't trust myself to not break it. I'd also be leery of a third-party replacement lithium battery of unknown quality (let's be honest, that's what you'll probably end up with) charging right next to my head while I sleep. Saying that as someone whose friend had a lithium battery fire with her laptop.

Point is, the argument of "why would you try to save your battery by not using it when it has the same net effect of less battery?" is pretty short-sighted.

[–] AA5B@lemmy.world 1 points 1 day ago* (last edited 1 day ago)

User replaceable batteries would be actual cheap, would be nice. But iPhone 15 pro battery replacement at Apple is $100, and I’d expect that to be one of the more expensive battery replacements. Many phones will be cheaper, third parties will be cheaper. While I’d rather do it myself, it’s really not that much for once every three years to keep it above 80% health, and 9% of phone replacement cost.

the argument of “why would you try to save your battery by not using it when it has the same net effect of less battery?” is pretty short-sighted.

The argument is

  • why try to save your phone battery when it’s critical to last the day and eventual replacement is cheap?
  • it’s much more important to save your car battery because you won’t miss reduced range on normal days, you want max range available for road trips, and replacing the battery is very expensive
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[–] wizzor@sopuli.xyz 14 points 2 days ago (1 children)

I don't know if the same applies to sodium batteries, early indicators are that they are less sensitive to depth of discharge as a degradation driver.

Still, the expected lifetime is going to be at least between 4-8 times NCM (traditional li-ion), which is massive.

[–] AA5B@lemmy.world 2 points 1 day ago* (last edited 1 day ago)

Definitely incredible but I still feel like people’s excitement is misdirected.

  • they’re less energy dense so not likely to be on phones or many cars
  • for cars the extra life is marginal when existing batteries already last more than the life of a typical vehicle
  • much cheaper will make a huge difference in low end cars.
  • but storage is the killer app! I don’t care about energy density but they’re much cheaper and will last much longer. Huge win!

Imagine if home battery systems cost half as much but last four times as long! Or grid storage! This is huge!

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[–] FunctionallyLiterate@lemmy.ca 85 points 3 days ago (1 children)

Now, if we can just get the robber barons and their wholely-owned politicians out of the way of progress...

[–] FistingEnthusiast@lemmynsfw.com 36 points 3 days ago (2 children)

Yep

Good luck to you

You're going to need a guillotine

I'm in!

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[–] Gerudo@lemmy.zip 35 points 2 days ago* (last edited 2 days ago) (6 children)

Honey, where did you put my sodium ion battery?

On the kitchen counter so it can watch me cook dinner.

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[–] Ugurcan@lemmy.world 13 points 2 days ago (4 children)

Tell me which stocks to buy.

[–] jaschen306@sh.itjust.works 4 points 1 day ago

Most of the USA sodium battery companies are currently in private equities. You can buy Chinese stocks or just wait until it goes SPAC.

[–] neighbourbehaviour@lemmy.world 7 points 2 days ago* (last edited 2 days ago)

Tell me which stocks to sell.

FTFY

[–] seejur@lemmy.world 1 points 1 day ago

The ones this people buy: https://share.google/PWnmursuqNxjrfSSl

If they are not buying some sodium battery producers, you can bet that somehow those batteries will not be "ready for the market" yet

[–] IndustryStandard@lemmy.world 1 points 1 day ago (1 children)
[–] Aneb@lemmy.world 2 points 1 day ago

What will gold do in an apocalypse, time to collect bottle caps

[–] troed@fedia.io 34 points 3 days ago (2 children)

This is what I've been waiting for as residential battery solution. Really nice to see it starting to take off.

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[–] thespcicifcocean@lemmy.world 12 points 3 days ago (8 children)

if i can afford one, i'll buy a car with it. but if i can't, i'll keep using my 04 nissan.

[–] Dremor@lemmy.world 14 points 2 days ago (4 children)

If I recall well, it isn't a good fit for cars as it energy density per weight isn't as good. But for residential batteries, that's huge (if true).

[–] felbane@lemmy.world 11 points 2 days ago

This isn't true any more, and it's mentioned in the article. Sodium is at least equivalent to - and on pace to surpass - the energy density of Lithium. It's already being used in passenger cars in the Far East.

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