[Tagbert]

The problem is that “charging” that hydrogen battery uses enormous amounts of energy and produces large amounts of CO2. Until you can find a way to get hydrogen that does not produce CO2 and does not require much more energy than the electricity that goes into a li-ion battery, hydrogen is a non-started.

[_hypx]

As electrolysis is also an electrochemical process, it is identical in basic nature as charging a battery. These are statements revealing the writer's ignorance of the basic facts, proving the point that people are refusing to explore the existence of superior battery technology.

[Tagbert]

Yes, I do understand the electrolysis process. I also understand that it is a very inefficient process that takes significantly more energy as input than is produced in the hydrogen output. That is also something that must not be ignored.

[_hypx]

I don't think you do. The theoretical efficiency limit is 100% efficiency, same as charging a lithium ion battery. Reality is closer to this than what is in your head I suspect.