Very interesting, thanks for sharing! Several reasons hydrogen powered cars aren't practical for passenger cars.

Charging at home generally doesn't have to be fast though, only when you're on the go would you need extra fast charging. With newer generation batteries (like sulfur and lithium based batteries) faster charging will be easier but dedicated charging stations probably need some adjustment indeed.

Let's see if this breakthrough is scalable. 1200 km's and 10 min charging would definately make EV's more practical. I don't expect hydrogen-powered cars to become the standard anymore, especially since with those you'd still rely on 'gas' stations instead of producing your own energy.