Battery Technology is advancing at a very fast pace compared to just 10 yrs ago. The biggest researchers on this technology are being done by the mobile phone companies. There are now multiple companies doing research on multiple ways to increase the capacity of the battery and every single one of them look promising and set to lower the cost of ownership.
Since the price of the battery is half the cost of the car dont be surprised if you see a mobile phone company releasing an electric car as its next update…. Google Car?…dont say I never said it… 😉