Quite a few of my chemical engineering friends at Berkeley have interned at Tesla in their battery cell division. Their laboratory also regularly partners with our Lawrence Berkeley National Laboratory for various research projects. It's a pretty robust operation actually, though I doubt most people would know about it unless they were in academia or affiliated with the research universities involved.
Happy overall that my friends don't have to choose between their morals or making money working in the oil industry now that battery chemistry is the more lucrative alternative.