Well, what we need to spark a revolution on many fronts is simple: Half the volume Twice the energy We had something like that happen when going from

Well, what we need to spark a revolution on many fronts is simple: Half the volume Twice the energy We had something like that happen when going from NiCd to LiPo chemistry. On one of my high performance gliders I went from a massive, heavy 27 cell NiCd pack to a 6 cell LiPo pack that's easily half the volume and probably half the weight, if not less. And the LiPo pack can easily deliver 200 "anytime/anywhere" Amps. Yes, the thing goes up vertically like a rocket. Motor only runs for 10 seconds, if that. I'm not a chemist but I think the only way to achieve this half/double evolutionary step is with chemistry, not structure (as in, making layers smaller). Lithium is nasty stuff. Part of me hopes we can bring something like carbon nanotube-based supercapacitors to this level of performance and radically change electrical energy storage without going to nasty chemistry. It would almost feel "zen" to use carbon for efficient energy storage. Yes, there's a bit of sarcasm there in calling it "simple", because it isn't at all.