• sugar_in_your_tea@sh.itjust.works
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    2 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.

    • UnderpantsWeevil@lemmy.world
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      2 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.

      • Ashe@lemmy.blahaj.zone
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        2 months ago

        I remember NiCad batteries still being used in power wheels toys as a kid. For all I know they may still be, but the battery advancements have been particularly amazing.

      • laurelraven@lemmy.blahaj.zone
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        2 months ago

        Probably would have if we didn’t pull out all the stops to subsidize it all to hell and back. 40 years ago was a great time for increasing fuel efficiency and smaller, lighter cars specifically because of gas shortages, and when that got a temporary reprieve we just acted like it could never happen again

      • Aux@lemmy.world
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        2 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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          2 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.

    • Usernameblankface@lemmy.world
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      2 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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        2 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.

        • Serinus@lemmy.world
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          2 months ago

          batteries catching fire don’t mesh with garage storage

          Your gas powered car is more likely to burst into flames than your electric car.

          • sugar_in_your_tea@sh.itjust.works
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            2 months ago

            The problems with EV fires are:

            • they can easily reignite, and traditional firefighting methods don’t work
            • they can happen with a simple puncture, or during charging
            • there’s pretty much no warning sign

            Whereas with ICE vehicles:

            • generally caused by poor maintenance
            • overheating (major cause) has warning sensors and can generally be avoided
            • are fairly easy for fire departments to deal with

            I was considering getting a Chevy Bolt, but the company’s response to charging issues (i.e. don’t charge in your garage) killed my enthusiasm for it. Pretty much everything else either costs too much or doesn’t have enough range. I’d really rather not spend much more than $20k on a car, but the used market has been bonkers.

              • cybersin@lemm.ee
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                2 months ago

                I think we still need more time/data to get the whole picture. EVs are still in their early stages.

                It would be interesting to look at fire rates for vehicles at rest. These types of fires have the potential to become quite serious, as they are often not immediately noticed, especially if the vehicle is parked in a garage or remote area. This additional time allows the fire to spread and intensify.

                Since EV fires are typically more intense than ICE vehicles, we should expect EV fires to cause more damage to the surroundings and to spread faster. Though, this danger could be offset if EVs have a lower probability of self ignition.

                We should also look at fires while refueling/charging. Lithium cells are most dangerous when charging and discharging. While an overfilled gas tank is easy to spot and may catch fire, a continually overcharged battery is invisible and will catch fire. Also, because of the long charge time of batteries, many EV owners leave the vehicle unattended while charging and would not immediately notice a fire if one were to occur. In addition, EVs are often charged at home, in close proximity to residences and other vehicles, and often within garages. These residential locations do not have the same fire safety requirements and suppression systems as gas stations, so a vehicle fire at home is already much more dangerous and has the potential to severely damage your home.

                We have had a century to figure out ICE, but it’s still very early days for EVs, so only time will tell.

                • cybersin@lemm.ee
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                  2 months ago

                  Of course this could all be addressed by designing robust systems that implement strong redundancy, safety checks, and sufficient regulation, but that increases complexity and costs money.

        • Usernameblankface@lemmy.world
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          2 months ago

          Yeah, a car that started out with 150 miles of range, has degraded to about 80 miles of range, and is known to be safe would be ideal.

          • sugar_in_your_tea@sh.itjust.works
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            2 months ago

            Yup, especially since my workplace has been talking about installing chargers. I don’t know when that’ll happen, but I’m willing to gamble if I won’t need them for a couple years (I might move to another company by then anyway).

        • UnderpantsWeevil@lemmy.world
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          2 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).

          • sugar_in_your_tea@sh.itjust.works
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            2 months ago

            I have a non-plugin Prius, and it works really well as a commuter. I got it for $10k like 10 years ago, and it has needed very little maintenance and still gets 45-ish MPG (highway speeds here are 70mph, and I usually go a few mph over).

            Ideally, I’d go pure electric for the next one so I’d never need to go to the gas station again. A PHEV means I still need to use some gas since I highly doubt I’d get 50 miles range on our high speed highways, especially if the car is older.

            But yeah, seeing the prices going down is good news. The EV discount for used EVs is doing a lot of work.