Comment by polemic
4 years ago
Quick Google search finds the concept being used in medical sensors. https://www.sciencedaily.com/releases/2022/03/220301205420.h...
When correctly shaped, graphene can harvest energy from motion, such as human body movements, and store it as electrical energy in micro-supercapacitors.
Motion is one thing, thermal motion is another.
Clocks that wind themselves up from being jostled around are centuries old. But thermal energy is supposed to be maximally disordered and thus unable to be converted to a more ordered form like electricity.