It depends on the use case of course. Low cost with no other constraints is good for utilities, medium cost with smaller size and weight for vehicles, high cost/high capacity/small-light for portable devices.

Since the rest of electric cars is essentially designed, I'm looking forward to someone who really cracks the battery problem. It's a real game changer for a large part of everyday life. No wonder the car companies are thinking twice about building new ICE models, the world could change in a minute.

Question: Is there a graphable Moore's Law at work for batteries?