• ooterness@lemmy.world
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    1 day ago

    Where are they getting batteries for $115/kWh? Going market rate for LiFePO3 LiFePO4 seems to be at least 10 times that.

  • roofuskit@lemmy.world
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    2 days ago

    Keep in mind that due to size these are only viable for industrial or utility grade storage. Not great for cars, devices, or probably houses.

    • Blue_Morpho@lemmy.world
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      2 days ago

      The video says it’s 175 kwhr per kg compared to 185 for LFP that’s already used in some cars. Gold standard is Lion at 300. Volumetric is the same ratios.

      So it’s usable in cars and absolutely immediately useable in homes.

      • DrunkEngineer@lemmy.world
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        2 days ago

        Sodium batteries generally have poor round-trip efficiency. This won’t be game-changer for home or solar use unless CATL can solve that problem.

        • Blue_Morpho@lemmy.world
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          2 days ago

          Google says 80% compared to up to 95% for LifePO4. Extra 15% cost for waste heat during charging vs 10x cheaper battery.

    • rainwall@piefed.social
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      2 days ago

      CATL first uses for the tech are literally car batteries. Your info looks to be outdated. The energy density of these new sodium batteries is apparently just 5% less than current lithium batteries used in electric cars.

      The platform is called naxtra. They are also using it in their mixed battery car batteries called Freevoy that are primarily sodium, but also lithium.

      The link above is the transcript of the posted video. It covers both electric car platforms.

      • roofuskit@lemmy.world
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        2 days ago

        Yes, outdated info then.

        Edit: sounds pretty magical that they’re significantly improved in nearly every way. 10x cheaper, over twice the charge cycles, more temperature tolerant, and only slightly less capacity.

        It’ll be interesting to see if they can really deliver all this.

    • 9point6@lemmy.world
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      2 days ago

      Aren’t the current models only about half as dense as lithium Ion?

      Taking up twice the space for a tenth of the cost seems like a pretty acceptable trade-off for the house scenario

  • fubarx@lemmy.world
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    2 days ago

    Not just that but they’ve also got the Choco-SEB modular battery swap thing going. 2min battery stops to full charge.

  • irotsoma@lemmy.blahaj.zone
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    2 days ago

    I don’t have a YouTube account and my pihole ad blocking gets me bkocked, is there an article it references? Also, what’s the kWh to cubic feet/meters ratio compared to current lithium ion?