ColchesterFC
Journeyman Pro
And let's not forget that cobalt is also used in the refinement of crude oil to make diesel and petrol.
But they are working on it...
https://techwireasia.com/2021/04/the-future-of-electric-vehicle-with-cobalt-free-batteries/
It is indeed but in far smaller quantities than the amount used for batteries. In a 2018 European Commission report "Cobalt: demand-supply balances in the transition to electric mobility" 49% of all mined cobalt was used in batteries. Just 5% was used as a catalyst, which is what it's used for in the oil industry. I can't imagine that with the increase in electric car production since 2018 that the figure has reduced since the report was published.