Curious. Doesn’t a fuel cell system have a battery, too? Make sense to use the deceleration/braking to charge the battery and the fuel cell to charge it and both to drive the car.
After all, electricity is electricity.
See post #3 & #4. It has a battery.
Yes, most fuel cell vehicles will also have a battery — for the reasons you cite. (There are other alternatives — e.g. hydrolyic or pneumatic accumulators, or flywheels — but, batteries are the most logical solution.) These batteries don’t have to be big to do the job (e.g. the Prius batteries are quite small, yet they are used for regenerative braking.
My point was that both battery-electric, and fuel-cell-electric vehicles are all-electric vehicles. Both are driven by electric traction-motors. A technical article should be more careful with terminology.