this post was submitted on 23 Oct 2025
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[–] humanspiral@lemmy.ca 6 points 4 hours ago

Sodium ion is great, but

While batteries have enabled passenger car developments, they have been somewhat stymied in large mobile power applications like shipping and electric trucks. That day is gone now. At these costs, electric shipping is achievable and the debate over alternative fuels will fall off quickly as applications are realized.

heavy transport is not the right application. Very heavy, and LFP has similar advantages while only being medium heavy. heating vehicle batteries is a solved problem.

https://micapower.en.made-in-china.com/product/YtVpSrTCuEkm/China-Grade-a-Catl-EV-Sodium-Ion-Battery-100ah-3-0V-Sodium-Na-Ion-Battery-Cell-for-EV-Smart-Storage-System-off-Grid-Power-Emergency-Backup-Power-Automotive-and-Marin.html

Great that you can get a home power 48v 33.6kwh system for well under $3000. (afaik, it comes with connector plates for 112x100ahx3v for $2340. Don't know about shipping or a box)

For 10% more, on that site, LFP is 33% lighter. Can affect shipping costs.

Sodium ion has extra applications/advantages. Not requiring a heated space could place them under solar panels in the field.

At $100/kwh or less, "retail", offgrid even oversized solar+ batteries is far cheaper than any utility service. At low charge/discharge rates (4+ hour charge from solar, and 16 hours of discharge (even with 0.25c peak discharge), 10000 cycles is achievable with both chemistries. $0.01/kwh/cycle.

[–] SirMaple__@lemmy.ca 7 points 5 hours ago
[–] YiddishMcSquidish@lemmy.today 9 points 7 hours ago

This has got to be better than lithium mining.

[–] Evil_Shrubbery@thelemmy.club 5 points 9 hours ago (1 children)

3kW vibrator?
15m42s

:'''(

[–] altphoto@lemmy.today 3 points 9 hours ago (2 children)

Normal vibrator....7 weeks.

[–] altphoto@lemmy.today 6 points 9 hours ago (1 children)

This just in! Another woman was found profusely gone under the sheets on her bed. This was discovered by a neighbor who kept hearing humming and occasional cat-like death moans. At some point after 7 weeks of this it suddenly stopped prompting the neighbor to visit the victim's home.

The poor woman is recovering. She is an upholsterer, unrelated to the story, but upholsterers never die, they recover. Leather makers do die. They die a lot.

[–] Evil_Shrubbery@thelemmy.club 3 points 8 hours ago

(6 days, 10h - not counting when it overheats)

[–] melfie@lemy.lol 76 points 15 hours ago (22 children)

While Sodium-Ion sounds legitimately promising, we’ve all read so many articles about “revolutionary new battery tech” over the years that the default response is “cool, let me know when mass production starts.”

[–] humanspiral@lemmy.ca 2 points 4 hours ago

Can buy them in relatively small quantities now online.

[–] gandalf_der_12te@discuss.tchncs.de 19 points 8 hours ago* (last edited 8 hours ago) (1 children)

“cool, let me know when mass production starts.”

("to the best of my knowledge, that is now, immediately.")

HiNa opened a 1 GWh sodium-ion battery factory in December 2022. Since then, both BYD and CATL have opened huge sodium-ion battery factories.

[–] davidagain@lemmy.world 2 points 4 hours ago

Yup. BYD's 30GWh/year means 1kwh/second!

I can't resist cancelling the units even though it doesn't actually make sense because it's a capacity not a volume, as it were, but that's a 3.6kw factory!

[–] signalsayge@infosec.pub 22 points 12 hours ago* (last edited 12 hours ago) (1 children)

The article literally starts off with a mass produced $800 Sodium Ion battery that you can buy right now.

[–] SaveTheTuaHawk@lemmy.ca 16 points 12 hours ago (3 children)

Because it's an ad..you all know that,right?

[–] davidagain@lemmy.world 1 points 4 hours ago

You don't generally advertise things that you don't mass produce, though.

[–] MojoMcJojo@lemmy.world 12 points 8 hours ago

Did..did you want them to keep it a secret?

[–] Soup@lemmy.world 11 points 9 hours ago

It being an ad doesn’t change anything in an of itself. They’re correct in saying that there is a mass-produced, consumer grade product available. Unless that is a lie, or said product is complete trash, this solves the “call me it’s mass-produced” problem the original commentor has.

[–] YiddishMcSquidish@lemmy.today 2 points 7 hours ago

I only pay attention if Dr. Goodenough's name is somewhere in the ecosystem.

[–] OctopusNemeses@lemmy.world 16 points 13 hours ago (2 children)

Did you read the article? This isn't about a research paper that talks about theoretical lab experiments. Sodium batteries are in real world application right now. Mainly in China and South America.

You can buy sodium batteries from AliExpress. It's been available for a while. I was thinking about ordering a few but I ended up spending my hobby budget elsewhere. There's no economies of scale yet for sodium battery tech. You can get the battery but there is zero electronics available for it. Mainly you'd have to design your own charger and battery management modules. That's out of my pay grade. I've been waiting for Chinese engineers to mass produce such things.

[–] AdrianTheFrog@lemmy.world 1 points 5 hours ago

i hope isdt releases a firmware update for the q6 nano for that if RC sodium ion packs become available.

although afaik energy density per volume and weight isn't quite there yet

[–] SaveTheTuaHawk@lemmy.ca 5 points 12 hours ago (1 children)

You can buy sodium batteries from AliExpress.

You can buy a lot of bullshit from AliExpress.

[–] AdrianTheFrog@lemmy.world 1 points 1 hour ago

they're actively manufactured for consumers, and cheap and available enough to be relatively competitive with lithium ion on there

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