IBM is teaming up with 2 japanese firms to work on a new battery they claim is capable of allowing up to 500 miles of range for an electric car. This could be a game changer but its not happening fast.They claim if all goes well it still would be 10 years before you might see one on the road.(sounds like the hydrogen fuel cell car).
http://gm-volt.com/2012/04/23/ibm-w...tentially-world-changing-battery-500-project/
http://gm-volt.com/2012/04/23/ibm-w...tentially-world-changing-battery-500-project/