Morgans wrote:
"Phil" wrote

IF these can be made practical, they sound ideal for use in an
airplane. They are light, and they can be shaped in just about any
way to fit inside the airframe. Suppose they were integrated into the
airframe and wings such that a large percentage of the airplane
consisted of battery. It might be possible to get enough capacity
there for a practical general aviation electric plane.


I can see the headlines, now.

Plane (or car) crashes, and the car's structure electrocutes the occupants.
g

LOL!

These paper batterise are light because they are so small.

By the time they make a battery will a few megawatts capacity, it's NOT
going to be all that light.

Lighter than Lead/Acid? Probably.

But light enough to fly? It might be a while...