this post was submitted on 02 Aug 2025
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[–] partial_accumen@lemmy.world 109 points 23 hours ago (20 children)

This is big! Grid scale Sodium Ion battery technology is (on paper) the best candidate for cheap large scale electricity storage. The fact that this company is working on 9 pilot deployments mean that this will likely produce the real world results that the paper exercises promise.

There are SO MANY advantages of Sodium Ion battery tech for grid storage over everything else we've used so far (nearly all Lithium based).

Sodium Ion batteries:

  • don't have as intense thermal management needs Lithium chemistries
  • don't have the massive negative environmental impact for their source materials (because its a part of regular old table/sea salt)
  • doesn't have the massive swings in capacity when operated in extreme hot or cold temperatures. Sodium Ion doesn't care.

The only downsides to Sodium Ion is that the batteries are physically larger for the same amount of energy stored (which isn't a problem for stationary storage), and the charging/discharging curves are not as linear as other chemistries (which again, isn't an issue because these are purpose built applications where the curves can easily be managed by battery management systems).

[–] yaroto98@lemmy.org 65 points 22 hours ago (1 children)

I would happily dedicate a corner of my garage for a big sodium ion battery.

Also, fun fact they can charge and discharge faster than lithium ion. Also, their chemistry doesn't lead to spontaneous combustion. Perfect for a house backup.

[–] bryndos@fedia.io 13 points 19 hours ago

I think it's the fire thing that is really their killer feature. So to speak.

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