I find it refreshing that an
I find it refreshing that an article points to cost, not achievable driving range as the obstacle to mass production of EVs.
It is certain that very cost efficient batteries are on the relatively near horizon. If I were head of IBM I would immediately cancel their air battery effort. Even if it succeeds, it will likely be totally obsolete by the time that happens. Both Toyota, in collaboration with the Tokyo Institute of Technology, which makes MIT' s battery efforts look sick and amateurish (their slippery cell for example), are promising batteries 5 to 10 times cheaper in the next 5 years, as has German firm BDM-Energy.