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CATL seem to disagree with that last point https://www.caixinglobal.com/2022-10-25/catl-aims-to-mass-produce-sodium-ion-batteries-in-2023-101955814.html https:/

• Manuel_D 4y ago
  This is an entirely different battery chemistry, it's not even using lithium.
  • ben_w 4y ago
    Which is enough to invalidate what you wrote: > There's a minimum amount of lithium necessary to hold a charge. Realistically the only reliable path of grid scale battery storage is a different batter chemistry, but none has proven as effective as lithium ion so far.
    • Manuel_D 4y ago
      The point is that the big order-of-magnitude gains in lithium ion batteries during the 1990s is not possible today, since they're already pushed near their limit. Given that the cement talks about a minimum amounts of lithium to hold a charge, good faith readers are capable of comprehending that this is talking about lithium based battery chemistries.
      • Schroedingersat 4y ago
        So what scales better? Off river PHES is cheaper, but limited in scope. Electrolysis works but only for long duration. PWRs have no fuel supply if expanded. They also cost more and the historic highest construction is not to the same scale as the current renewable + lithium battery supply chain.