Great question! Platinum is not used in electric cars right now. Platinum is being researched as an option for hydrogen fuel cell electric vehicles, but that research is still underway.
Hydrogen fuel cell cars aren’t exactly electric cars. In these vehicles, hydrogen passes through platinum catalysts, and this produces electricity. That electricity is then used to power the car. So instead of charging a battery pack that supplies power to the electric motor, burning hydrogen supplies the power.
If hydrogen fuel cell vehicles are found to be a viable alternative to electric vehicles, use of platinum could grow exponentially. However, as research still has yet to show whether hydrogen fuel cell vehicles are as eco-friendly as electric vehicles, or if burning hydrogen will have environmental impacts, there is still time before platinum is largely mined and used in EVs.