The Sodium-Ion Battery Revolution Has Started - CleanTechnica
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Support CleanTechnica's work through a Substack subscription or on Stripe. Sodium-ion batteries have been in the works for years, and now sodium-ion batteries have started to appear in cars and home storage. JAC, in a partnership with Volkswagen, has been shipping a vehicle called the Sehol or E10X with sodium-ion ... [continued]

" CATL has thrown its hat into the ring with the Naxtra sodium-ion battery, with 175 Wh/kg and 10,000 lifetime cycles along with operation from -40°C to 70°C. CATL is planning a start-stop battery for trucks using the technology. It has the potential to replace lead-acid batteries. CATL has announced battery pricing at the cell level in volume at $19/kWh. "

  • khannie@lemmy.worldEnglish
    22·
    29 days ago

    For anyone wondering what “10,000 lifetime cycles” means, it’s full charge / discharge to the point that the batteries are at 80% of original capacity so 10,000 is to me an absolutely incredible number.

    A typical phone battery is rated for about 500 (you can massively improve this by not charging it beyond 80%).

    • Overspark@piefed.socialEnglish
      12·
      29 days ago

      This also means that, when you buy a car with say a 500 km range, that the battery will last for 10,000 x 500 = 5 million kms. That is an absolutely insane number compared to cars that are on the road right now. And one you will obviously only reach if the rest of the car can keep up. EVs are already doing well compared to ICE cars in this regard, but this is almost an order of magnitude larger than the current status quo.

      • Frezik@lemmy.blahaj.zoneEnglish
        11·
        28 days ago

        Also, considering that modern cars are considered totaled by basically any accident, it’s not going to be the limiting factor on the car’s lifetime. It’s mostly a talking point by ICE advocates who stealthily imply million km cars are typical.

    • wizzor@sopuli.xyzEnglish
      6·
      29 days ago

      I don’t know if the same applies to sodium batteries, early indicators are that they are less sensitive to depth of discharge as a degradation driver.

      Still, the expected lifetime is going to be at least between 4-8 times NCM (traditional li-ion), which is massive.

    • DupaCycki@lemmy.worldEnglish
      2·
      28 days ago

      A typical phone battery is rated for about 500 (you can massively improve this by not charging it beyond 80%).

      This 80% thing is incredibly simplified and not even always accurate. Personally I charge to about 95% and my phone batteries remain at 98-100% condition after 2 years of everyday use.

      Limiting yourself to 80% doesn’t really make sense. You’re losing 20% capacity instantly, instead of losing it slowly over a few years. To be fair, a lot of people treat their devices so poorly that they may hit the 80% in less than 12 months, so I guess there’s that.