The solution for the battery technology needed may be on tap:
"The Nikkei newspaper (subs. req’d) says that a Japanese company has built a quick charge system that can take a battery from zero charge to 50% full in about 3 minutes.
JFE Engineering Corp, based in Yokohama, says that the system will go on sale later this year and has the capability to charge 5 times faster than other such quick charge products. Even though one station costs about $63,000, that’s roughly 40% less than the competition."
I think the standards issue mentioned in the article can easily be resolved if this technology proves it's potential.
Hat tip: Instapundit