this post was submitted on 14 Apr 2026
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Under modern physics, Lithium is pretty much the best possible chemical to build batteries out of. Anything else that might be better won't be a chemical battery, and it's not like there's any reason to suspect some new magic thing will be created like a pocket-size fusion reactor that will make chemical batteries totally obsolete any time soon. Decades more of lithium batteries being relevant are as close to guaranteed as can be.
Sodium batteries? Of course it depends on their use a bit.
Those are not “better” batteries chemically or electrically. They are just cheaper and don’t use lithium which is considered a feature.
Sodium battery performance is better in the cold.
Currently some sodium battery products are out in the market and aren't appreciably cheaper yet and the answer to 'why' was 'cold weather performance'.