Hydrogen Fuel Cell vehicles have a large battery, larger than the ones in a Prius.

The Toyota Mirai fuel cell vehicle has a small battery, only 1.2 kWh.

https://www.toyota.com/mirai/2023/features/

And story has it the small battery is the reason for the pathetic performance. (9.1 seconds 0-60 speed, which is minivan levels).

The fuel cell can't produce electricity fast enough to power the engines for proper acceleration and the battery doesn't have enough buffer.

The Honda Odyssey minivan can run 0-60 mph in under 7 seconds. So I guess the Mirai is worse than a minivan. But maybe good enough for a city car.

This is totally incorrect. A fuel cell is a type of electrochemical cell. A fuel cell car has an electric motor just like a conventional EV. We often use the terms “BEV” and “FCEV” to differentiate them.

> Hydrogen cars are chemical.

FCEVs are chemical in the same sense that BEVs are, because a “fuel cell” is, like a battery cell, an electrochemical cell.

The only real difference is that the “fuel” and “waste” are inside a battery, but come from and go to the outside in a fuel cell, which means that an FCEV can be fueled (and exhausts) like an combustion engine vehcile, despite being fully electric.

Yes, thank you, that was the distinction I was trying to get at, not quite using the right terms.

> Hydrogen cars are chemical

So are batteries too