• JohnDClay@sh.itjust.works
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    3 years ago

    I wonder what’s the volumetric energy density, historically that has been a bigger issue than gravimetric energy density.

    • Pelicanen@sopuli.xyz
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      3 years ago

      According to their site:

      A storage system of 3 m3 can store up to 10,000 kWh of energy

      So about 3.33 MWh per cubic meter, 3.33 kWh per liter, or 3.33 Wh per cubic centimeter.

      • JohnDClay@sh.itjust.works
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        3 years ago

        Hmm, if that’s correct, that’s even higher than liquid hydrogen, which would be really impressive.

        Energy densities

        Edit: Looks like their gravimetric energy density is 3.5kWh/kg

        Edit 2: here’s a comparison for batteries

        Battery Cell Energy Density

        • Pelicanen@sopuli.xyz
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          3 years ago

          Since it’s solid hydrogen I think it’s to be expected, however I didn’t see any information regarding energy losses which I imagine would be quite high when you have those kinds of cooling requirements.

          • abraxas@sh.itjust.works
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            3 years ago

            This is why I hate marketing pushes. If they’re a good-faith business, the efficiency needs to be within shooting distance of reasonable against costs. But as we learned from the artificial meat industry (that ultimately admitted we’ve already probably reached lifetime price/quality/scale limits from the methodologies they’re using) brutal honesty doesn’t get you investors.

    • KinNectar@kbin.run
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      3 years ago

      @JohnDClay

      Good question, this article is pretty fluffy, not a lot of hard data. Reads kind of like a fluffed up press release honestly.