this post was submitted on 20 Oct 2023
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[–] regulatorg@kbin.social 4 points 1 year ago (2 children)

I hope hydrogen succeeds myself but my friend pointed out a hydrogen engine will still need an oil change.

In the EV space they have sodium batteries now which don't use rare minerals?

[–] stealthnerd@lemmy.world 2 points 1 year ago

He's actually right about this one despite the down votes. Hydrogen fuel cell vehicles are electric vehicles that use elective motors not engines so there are no oil changes.

The difference is that a fuel cell vehicle captures electrons during the reaction that takes place when hydrogen is exposed to oxygen (they bond to from H2O) rather than storing energy in batteries.

So battery electric vehicles store their energy in a battery while fuel cell electric vehicles store it in the form of hydrogen but ultimately electricity is was powers both of them.