About 6-7 months back, one of the TV stations here in St. Louis had a story about a fellow in nearby Illinois who had developed an energy unit that consumed aluminum plates and delivered electrical power. He supposedly was running a vehicle on it. Don't remember any of the details, sorry about that, but as aluminum is one of our most abundant elements it might hold promise.
I guess it might not be a "fuelcell" but does anyone know any more details?