[templar]

I wonder if all the anit-hydrogen/anti-fuel cell FReepers are going to show up telling us that this is only theoretical lab stuff and is an impossible lunacy for practical use?

[r9etb]

I wonder if all the anit-hydrogen/anti-fuel cell FReepers are going to show up telling us that this is only theoretical lab stuff and is an impossible lunacy for practical use?

Liquid Hydrogen/Oxygen fuel cells are old technology -- for example, that's what the Shuttle uses for its power source.

The folks you're talking about are discussing automotive fuel cells, which aren't terribly amenable to cryogenic fuel cells....

[kidd]

Fuel cells are perfect for subs. I would imagine that such a sub would require a lot more refueling stops when compared to a nuclear sub though.

I used to work for Treadwell. They have one product - oxygen generators for US Navy submarines. When I left, they were pushing hard for a membrane based oxygen generator - essentially the opposite of a fuel cell.