Comment on CATL says next-gen sodium-ion battery supports 500 km range, readies for 2026 mass production

BoloMKXXVIII@piefed.social ⁨2⁩ ⁨weeks⁩ ago

• ShadowRam@fedia.io ⁨2⁩ ⁨weeks⁩ ago

  Question is.... How much cheaper...

  LFP is almost at the price point we could all have a freezer sized battery pack in our house, drastically changing the grid, and allowing a place for all that wind/solar to store energy.

  If Sodium is a fair chunk cheaper, then it will totally be worth buying a house battery pack. Buying energy on the cheap at certain times of day, and using the battery when energy prices are high.

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  • DeadPixel@lemmy.zip ⁨2⁩ ⁨weeks⁩ ago

    Potentially 1/10th the price according to this video I stumbled on about it a couple of days ago!

    youtu.be/Wf84NJSiAeU

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    • chocrates@piefed.world ⁨2⁩ ⁨weeks⁩ ago

      That video makes it sound exciting but I've heard Matt hypes things up more than they should be

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      • rainwall@piefed.social ⁨2⁩ ⁨weeks⁩ ago

        Plus market dynamics means that even if it’s 90% cheaper to make, they will only reduce the price compared to LFP by 10% to maximize profits.

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  • Munkisquisher@lemmy.nz ⁨2⁩ ⁨weeks⁩ ago

    Why wouldn’t the grid do this on an industrial scale and remove any off peak discounts?

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• lemmyng@piefed.ca ⁨2⁩ ⁨weeks⁩ ago

  They also have better thermal stability, so less risk of uncontrolled fires.

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  • Badabinski@kbin.earth ⁨2⁩ ⁨weeks⁩ ago

    AFAIK, LFP thermal runaway can't start fires. NMC or other lithium chemistries can and they scare me, but LFPs are pretty damn safe. That being said, I'm still stoked for sodium chemistries to be developed. If the round trip efficiency issues can be solved, then I think it'll be a great solution for residential power storage.

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    • chocrates@piefed.world ⁨2⁩ ⁨weeks⁩ ago

      What does round trip efficiency mean here?

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      • docus@lemmy.dbzer0.com ⁨2⁩ ⁨weeks⁩ ago

        How much energy you get out of a full charge, divided by how much energy you need to fully charge it. It’s around the 90% mark for lithium based tech, no idea what it is for these sodium ones

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• CompactFlax@discuss.tchncs.de ⁨2⁩ ⁨weeks⁩ ago

  As long as the efficiency is outweighed by price, it could move us in the right direction. Hopefully we can pick up the efficiency in time. These would also be good for my future load-shifting (charge during off peak, low carbon electricity) and maybe solar system at home.

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