[codefreakxff]

I believe the name is hydrogen fuel cell. It takes hydrogen as a fuel and generates electricity like a battery, instead of combusting it like a typical gas powered motor

The output of a hydrogen fuel cell is water, so it is a fairly sustainable loop if you can capture the water and generate hydrogen from it. But you need an efficient process to convert water into hydrogen

[PaulHoule]

That fuel cell is more like an engine than a battery. You have to get O2 into it, get waste heat out (harder than the engine because the temperature is lower), keep it from drowning in the water it makes, etc.

It is hard to see the fuel cell EV competing with a battery EV.