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Lithium-free sodium batteries exit the lab and enter US production (newatlas.com)

489 points by Brajeshwar · 833 days ago · 386 comments on HN

Article summary

Natron Energy has started producing lithium-free sodium batteries in the US, offering a potentially more reliable and cost-effective alternative to lithium-ion batteries. The batteries have a lower energy density but charge and discharge at rates 10 times faster than lithium-ion and have an estimated lifespan of 50,000 cycles. They are made from abundantly available materials and have a safer, non-flammable chemistry. The company plans to target the stationary power market, including data centers and EV charging stations.

Main themes

  • Sodium-ion batteries
  • Lithium-ion alternatives
  • Energy storage
  • Sustainability
  • Battery safety
  • Industrial applications

What commenters say

  • Sodium-ion batteries may be a better choice for certain applications, such as stationary power storage, due to their faster charging and longer lifespan, despite having lower energy density.
  • The trade-off between energy density and safety, cost, and sustainability may make sodium-ion batteries an attractive option for some users, but not for others, such as smartphone manufacturers.
  • Some commenters argue that the appeal of thin and light smartphones is overrated, and that a slightly thicker phone with a longer-lasting battery could be a viable alternative.
  • Others point out that planned obsolescence and the desire for high energy density in smartphones may limit the adoption of sodium-ion batteries in the consumer electronics market.
  • The use of sodium-ion batteries in industrial applications, such as backup power storage, could be a game-changer due to their faster charging and longer lifespan, potentially making them a more viable option than lithium-ion batteries.
  • There is disagreement about the feasibility of making smartphones with user-replaceable batteries that are also water-resistant, with some arguing that it is a solved problem and others citing design challenges.