this post was submitted on 27 Dec 2023
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Question to anyone who might know more: would sodium based batteries be better than lithium ones for the environment, in terms of recycling or disposing of it?
In case they are indeed better, would they be better because it's better to use less lithium in general (so if you use more sodium based ones, you use less lithium) or would they be also better because their own disposal is "nicer" (as in less toxic) for the environment?
Sodium is pretty much everywhere and it's often a waste product of other activities. So in terms of damage through mining, sodium should be much better. Recycling sodium will likely never be worth it, so there's a danger that toxic compounds will end up in the environment. Lithium, it's much more likely to be recycled because it's more expensive. But that again has an environmental impact. In short, there is no definitive answer. It all depends on how well mining, production and disposal are regulated and supervised.