That’s gibberish. All technology improves. And with hydrogen, you already start off with the highest possible energy density. And fuel cells are electrochemical systems, just like batteries. Saying batteries can improve also imply fuel cells can improve.
Hydrogen can not be improved. It will still seep through containers no matter what material you use because hydrogen atoms are just so damn small.
They are 2 fundamentally different problems, and only one can be actually improved. And that is the battery storage.
That’s gibberish. All technology improves. And with hydrogen, you already start off with the highest possible energy density. And fuel cells are electrochemical systems, just like batteries. Saying batteries can improve also imply fuel cells can improve.