• TropicalDingdong@lemmy.world
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    2 months ago

    We saw a USB pack similar to this released by a Japanese company earlier this month.

    If these prove to be as viable as they appear to be, the age of oil is over, because as interesting as these may appear for vehicles, mobile-ish electronics (read, they aren’t great in terms of energy density), where they’ll shine is immobile grid scale or structural scale or immobile device scale storage.

    Your oven might end up with a bank of these. Your fridge. An air conditioner. A heat pump. A power wall for your house that holds 4 days worth of electricity. These have way way way higher cycle reliability than their lithium counter parts. They’re good for something like 5x-10x as many cycles. But they are heavier per unit energy. But they degrade slower.

    I’m trying to not get to hyped but the bits of news of these getting into consumer technology is extremely heartening. The biggest and frankly, only middling issue, with renewables is where to stick the energy in the between times. Grid scale or microscale storage is the answer, but honestly, lithium hasn’t been a great technology for that. Its good enough to get started, but the cycle time isn’t great and the consequences of failure are high. Lithium fires arent nothing to fuck with.

    As far as I know, these sodium batteries basically can’t catch fire the way lithium can. There is no thermal runaway potential.

    They don’t consume (as much) hard to get, planet destroying minerals like lithium or cobalt.

    They’re very young, but even in these first generations, are coming in price competitive with lithium comparables. Remember how expensive lithium was in its first generations?

    We’ve already spent a few decades setting the world up to run on lithium batteries. Sodium should be a drop in replacement.

    • unexposedhazard@discuss.tchncs.de
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      2 months ago

      Imagine if we started seriously investing in battery tech at the time the combustion car was invented and hadnt stopped since. We would still have been limited by not having computers for simulation for a long time, but we could probably have gotten to the current level like 20 years ago.

      But yes, the future of electricity depends entirely on eco friendly, sustainable and cheap batteries. Its just a matter of time.

      • gandalf_der_12te@discuss.tchncs.deOP
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        2 months ago

        batteries didn’t make much sense in the past because where do you take the electricity from? combusting coal to generate electricity to charge your car is not much better than just combusting oil directly. now, we have solar. that changes everything.

    • Aqarius@lemmy.world
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      2 months ago

      Appliances that don’t depower when unplugged sound like an incredibly bad idea.

        • Aqarius@lemmy.world
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          2 months ago

          Sure, but that’s usually done through a UPS cabinet, not on an individual device level.

          • Geodad@lemm.ee
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            2 months ago

            Therr is a use case for battery refrigerators. Getting vaccines to remote areas, outdoors prople could ise them, etc.