this post was submitted on 09 Apr 2026
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Na+ batteries are really cool tech, and with a few more iterations of R&D they can potentially replace Li+ batteries, removing the need for rare earth elements that are toxic to people and the environment, dangerous to extract, and more often than not extracted by child slave labor (such as in Xinjiang and Congo).
It doesn't matter how you feel about China, although framing Na+ as "China's battery" is problematic for other reasons.
Well it stinks like Chinese propaganda. That much was blatantly obvious to me. It‘s just not always obvious what part they‘re lying about. So it was the part about it being Chinese in the first place. Not very creative I must say.
The particular innovation discussed in the article was developed by Chinese engineers. But that doesn't make Na+ batteries "Chinese batteries."
If all tech was owned by the country where it was developed, there would be a lot more "american this," "american that." Planes, computers, automobiles, nukes, etc.
Too much of it already is controlled by US patents, though. There needs to be more freedom to invent, develop, and iterate...
Sodium batteries won't fix the mining issue for rare earths. Lithium is not rare.
My understanding is that the lithium itself isn't the issue, it's that lithium batteries require other rare earths like cobalt where as sodium itself is not only more common than lithium, but it uses more common material like iron or tin in its battery chemistry that are also less problematic.
Go read about rare earths and what they're mostly used for, then come back when you're ready to join the discussion