Exactly what I was looking for: they might be cheap to make (no small feat, that), but if they can't fit enough kwH into a car, then that's a problem.
I am wondering if this invention could support solar power energy storage for home use. That might be an interesting application.
“I am wondering if this invention could support solar power energy storage for home use. That might be an interesting application”
Yes, that’s what it would be good for, and/or utility sized storage farms.