Re:All new cars sold in Europe must be emission-free from 2035
by rich_sasha on Tuesday November 01, 2022 @06:32AM
(#33419273)
Hydrogen is generally very hard to store.
Batteries have downsides but apart from them, they do work.
Hydrogen can either be stored cryogenically (which is problematic in a car), or compressed. In the latter case, hydrogen leaks out through the metal (because its atoms are so small) and worse still, causes embrittlement of the metal.
So while we know how to build a battery car today, which is safe and stable, it's much less the case for hydrogen. It's not like you can take eg LNG car tech and just fill it with hydrogen.
Batteries have downsides but apart from them, they do work.
Hydrogen can either be stored cryogenically (which is problematic in a car), or compressed. In the latter case, hydrogen leaks out through the metal (because its atoms are so small) and worse still, causes embrittlement of the metal.
So while we know how to build a battery car today, which is safe and stable, it's much less the case for hydrogen. It's not like you can take eg LNG car tech and just fill it with hydrogen.