Aircraft build up a static charge during flight which is currently discharged through static dischargers:
I recently read the abstract and summary of this paper:https://www.sciencedirect.com/science/article/abs/pii/S1359836820334235
Which explores using certain types of polymers with conductive cores (graphene) for aircraft bodywork and wings to utilize the static charge build up over the aircraft surface to act as a large capacitor. For example, this would be achieved by creating a potential difference across the wings.
What magnitude of energy could be created and what systems could this run - if any? Would this be relevant for commercial airliners, electric aircraft, civilian aircraft or even superlight solar powered aircraft, such as the Solar Impulse which flew round the world.
I understand there would be a weight increase with additional equipment but I am wondering about the feasibility and whether it would even power a clock on the dashboard.