• sugar_in_your_tea@sh.itjust.works
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      6 months ago

      And commuter cars probably. I’d love something I can drive to work and back, and then later upcycle into home energy storage.

      CATL showed a 160 Wh/kg sodium-ion battery in 2021 and has plans to increase that density over 200 Wh/kg to better meet the needs of electric vehicles.

      Hopefully that happens in a reasonable timeframe. I don’t need high range, I just need cheap to repair or long life for a commuter. Maybe we’ll get something similar for buses and light rail first before getting it for regular cars.

      • Usernameblankface@lemmy.world
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        6 months ago

        Yes, absolutely. For a regular daily commute to a job that allows you to afford 2 vehicles, having one of the two with a shorter range with more charge cycles makes a lot of sense.

        • sugar_in_your_tea@sh.itjust.works
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          6 months ago

          Yup. I’m married with kids, so we need two cars regardless. The commuter just needs to reliably go ~50 miles between charges even during the winter, while the family car needs to fit my wife and kids and go at least 400 miles between charges (we like road trips).

          Unfortunately, I haven’t found the right fit since EVs are either too expensive, don’t have enough winter range (e.g. old Leafs), or have too many safety advisories (e.g. batteries catching fire don’t mesh with garage storage). Likewise for family cars. Most current EVs are in the awkward middle: too much range for a commute, and not enough for a road trip.

          But if there was an economy car with ~150 miles range and inexpensive batteries, I’d probably buy it.

          • UnderpantsWeevil@lemmy.world
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            6 months ago

            The Volt was really good for this - 50 miles electric and 430 miles gas on a 7 gallon tank.

            Unfortunately, PHEVs fell out of fashion in 2018 and are only just coming back into style. I think the Prius is the only comparable car on the market that manages this. The Kia Niro is also looking reasonably good with a 34 mile EV range.

            But if there was an economy car with ~150 miles range and inexpensive batteries, I’d probably buy it.

            Both are in the $30-$40k range new. You can find a 2017 Chevy Volt for $16k (and I seriously can’t recommend it enough).

      • UnderpantsWeevil@lemmy.world
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        6 months ago

        Amazing how far we’re progressing in battery technology in such a short amount of time.

        And all it took was $100/BBL gas to get people off their asses. A shame we weren’t pioneering this kind of research 40 years ago.

        • Aux@lemmy.world
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          6 months ago

          Sodium batteries are in development for over 30 years. We were pioneering this kind of research almost 40 years ago and that’s how much time, effort and financial investment this stuff takes. It will be 10 more years to get them everywhere. Technology is not as fast as you think.

          • UnderpantsWeevil@lemmy.world
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            6 months ago

            Sodium batteries are in development for over 30 years.

            Closer to a century. But the investment in the last decade has risen with the price of fossil fuel as well as the sharp fall in short-term available renewable electricity. International investment - particularly in states like China, India, and Germany - have spiked considerably during this time as well. That’s why we’re seeing so many productive discoveries outside the US.

            It will be 10 more years to get them everywhere.

            HiNA Battery Technology Company began producing EV-ready sodium batteries last year.

            TÜV Rheinland approved Pylontech to begin mass producing bulk energy storage systems in March of 2023.

            Rollout is occurring at the speed of domestic investment. And while US companies continue to drag their heels, countries with higher electricity demand and fewer fossil fuel subsidies are not waiting around.