I think I'm just bitter because I watched "Who Killed the Electric Car."
I believe lithium is one of the most common elements in the earth's crust (not 100% sure, though). Lithium can also be recycled, but getting it in the first place will probably create a lot of environmental damage.
I think hydrogen is just a shoe-in for gasoline as petroleum demand dries up. It'll be a lot easier for a person to create electricity at home (solar panels, microhydro, wind, etc.) then it will be to create hydrogen through electrolysis (which is inefficient). Not to mention that hydrogen will have to be compressed to 3000+psi and/or cryogenically stored (unless substrate methods take off).
- LostCause