[Catfish]

^ same can be said for 98+ octane fuel.
Indeed the same Angst was expressed when inner combustion engines were used for the first time.
You can use V2a/V4a steel tanks to put liquid compressed hydrogen in it, or you can use fuel cells which ony produce a litte of hydrogen gas, just as much as is needed in the moment.
Hydrogen can indeed penetrate steel, so you will experience a bit of pressure loss in your tank over months, but the quantities are minimal. If you do not use your fuel-driven car for say four years the fuel will have developed into strange stinking liquid, its lighter inflammable gases evaporated.
Pure hydrogenium not thoroughly mixed with oxygen is not inflammable. Fuel cells are still heavy, but so are batteries.
Advantages are existing technology can be used including engines and gearboxes, same injection systems just coupled with valves just like with propane or LPG fuelled engines and cars.
The only exhaust fumes will be water vapour.

Yes hydrogen has to be produced also, via power plants or solar energy, but the effort is ridiculously low compared to produce batteries that hold for five years if you are lucky.

Add the power line loss over distances due to resistance and the amount of copper or even silver you would need to provide enough electricity to every household to quick charge your batteries, it plain does not make sense.