this post was submitted on 14 Apr 2026
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Japan finds a way to recover 90% of lithium from old EV batteries (www.techspot.com)
submitted 1 day ago by Argyle13@lemmy.world to c/technology@lemmy.world
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[–] sparkyshocks@lemmy.zip 3 points 7 hours ago

Exactly.

The whole reason why lithium is such a good material for cathodes in car batteries is because of its very low mass per cation. So for a Lithium Iron Phosphate battery, the the cathode material is LiFePO4, where the Lithium itself is only 4.4% of the overall mass of the cathode.

So it's important to remember that although the lithium constitutes a small amount of the total mass of a battery, that swings both ways so that not much is actually needed to build the next battery out of recycled materials.