Your second word negates everything else in your post.
The thing is that the electric cars now on the market are using lithium-ion battery technology developed in the 1990’s! Now, with the arrival of new, much-higher density battery types over the next few years, the prediction by VW Chairman Martin Winterkorn of a VW Golf-sized car going 800 km (497 miles) on a single charge by 2020 may not be so far-fetched.