The load-bearing word in the headline is "solid-state" -- hydrogen and existing EV chemistries are both relatively established tech-wise, whereas iirc the solid

The load-bearing word in the headline is "solid-state" -- hydrogen and existing EV chemistries are both relatively established tech-wise, whereas iirc the solid-state battery tech was only just announced earlier this year? (afaict non-solid-state EVs by toyota are also in the six-figures of volume?)