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> Charging still takes a long time and has relatively low mileage. Hydrogen doesn't have that problem Hydrogen has SO MANY other problems though it's not even
by outworlder 5y ago
> Charging still takes a long time and has relatively low mileage. Hydrogen doesn't have that problem
Hydrogen has SO MANY other problems though it's not even funny.
It's incredibly hard to store. We literally have devised no containers that can hold it long term, as the molecules are so small they seep through. As they do so, they embrittle said containers, which need to be then replaced.
It's not energy dense. So we either have to compress it (wasting energy) or liquefy it(not viable for cars, without even accounting for boil off).
Then you need the whole 'manufacturing' (as there's no free hydrogen on Earth) - probably from fossil fuels. You need to transport it to where it's going to be used. And you need to create and entire new fuel infrastructure. The current fossil fuel industry likes this for obvious reasons.
For all the talk on the lack of EV charging infrastructure, up to level 2 all we need are glorified relays. Electricity is available even in places we have no gas infrastructure.
And then, what are we doing with hydrogen? Using it on fuel cells... to produce electricity.
Just skip the middle man and charge batteries directly.
- m4rtink 5y agoEven liquid hydrogen with all its added problems due to the ultra low temperatures needed has very low density - that's why all hydrogen powered rockets are so massive. Even in liquid form the hydrogen tank is massive with a tiny liquid oxygen tank next to it (Delta IV, Ariane V, H II, Shuttle external tank). The extra tankage weight and added aerodynamic drag remove quite some of the adventages of the otherwise good specific impulse hydrolox has.