180
Toyota builds experimental hydrogen-powered pizza oven and grill.
(www.autoblog.com)
This is a most excellent place for technology news and articles.
Yeah batteries would probably work. A large battery bank can have 1kwh of capacity, and induction stoves are about 1.5kw. Which means you could run a stove for about 40min. You could bring more for longer. I'm sure by the time you can't get propane, batteries will have gotten much better too.
That's a lot of future e-waste to lug around just for cooking.
As opposed to a lot of super compressed gas to haul around? I didn't think this super niche use case justifies a whole different technology.