Syntropic Power and UNIGRID have entered a partnership to commercialize UNIGRID’s sodium chromium oxide battery chemistry in North America.

I’ve been hearing about these for a few years now. Huge if they work out at a large scale.

  • lime!@feddit.nuEnglish
    4·
    2 days ago

    from other comments it seems the energy density of batteries currently on the market is about 2/3rds that of lithium cells.

    there’s also the asymmetry to worry about: with a max discharge rate of 8C but a charge rate of 3C there could potentially be limits on regen braking. if i’m understanding it correctly, sodium cells degrade quickly at higher charge rates.

    • AlteredEgo@lemmy.mlEnglish
      2·
      2 days ago

      Interesting, but from what I understand limited charging would only be a problem if you do not have large enough battery capacity. So for heavier vehicles with larger capacity this might not matter much.

      PS: This video about the CATL NaFePO4 battery also mentions a “half sodium half lithium” battery pack for cars to combine the best of both.