3 ms·
I think you're getting downvoted because the quantities of rare earth metal required for these two things are vastly different. Some quick googling shows that a
by AlexandrB 3y ago
I think you're getting downvoted because the quantities of rare earth metal required for these two things are vastly different. Some quick googling shows that a catalytic converter for a car contains 1-2g of platinum, while an EV uses 8kg of cobalt. So while platinum is more rare, you only need a tiny amount for each vehicle.
- Tade0 3y agoCobalt is not a rare-earth though. Neither is platinum. Also LFP batteries - something e.g. China went all in on require no cobalt whatsoever. NiMH batteries in old hybrids used Lanthanum and BLDC motors use Neodymium, but the former was never used in mass-produced EVs and the latter can be supplanted by either AC induction motors (like in early Teslas) or, more recently, switched reluctance motors.