Tesla does not have and never had any battery tech. They use off-the-shelf Panasonic batteries that are exactly the same ones you put in flashlights[1].
Tesla made one major innovation. They realized that people will buy an electric car for $100,000. That's really it! They have an attractive and very good car, but it is market innovation that is Tesla's essential advantage.
Tesla made one major innovation. They realized that people will buy an electric car for $100,000. That's really it! They have an attractive and very good car, but it is market innovation that is Tesla's essential advantage.
1: http://www.amazon.com/NCR18650B-3400mAh-Rechargeable-Battery...