Re:300 miles per charge (Score 1)

The only technology development that is needed for pure EVs to completely replace all internal combustion (including hybrid) cars is quick-charge battery technology. If you could build an EV with 250-300 mile range per charge, and a 5-minute-to-full-charge (at 110v or 220v), you could use the existing gas-station infrastructure... How many gas stations aren't already connected to the electrical grid?

These sorts of batteries are already in development (or existing?). Certainly we've all already seen quick(er) charging batteries in our laptops, cell phones, etc. - 8 hour charges back in the day are already down to 1 hour charges. One more engineering order of magnitude, and we're there.