sodium is even more self-combusting than lithium
what would be better is a device that diverts the force of gravity into a linear path and powers a piezo electro-cline (squashed quartz solid state generator)
first we gotta understand how gravity works though, but we already know that mass is proportional to energy so we know that there must be some way to capture it, since combustion and nuclear decay both release energy by splitting matter into the cold and the hot parts
https://www.americanpiezo.com/knowledge-center/piezo-theory/generators/
finding the way to direct the pressure/vibration is the key... there is already quite a bit of work being done to find ways to make pressuer and vibration into a source of energy
i knew there must be
the reverse process is what causes seismic activity, where the solid silicate crystals in the crust are zapped with energy coming down from the sun, conducting through the semi-plasma of the magma and potentials of this flux crossing vast regions of piezo-responsive rock, causing them to vibrate
indeed, even just pondering that you can see how you could even combine a piezo generator, at a very large scale, at a frequently vibrating rift like teh San Andreas or East African Rift that would not only absorb some of that energy, but probably also stabilize the rift at the same time, since the electricity would be getting pulled out and thus vibrations being soaked up... or even to just directly catch it, forget piezo, to be able to tap the currents in the magma
how to use it as a battery though, that would be even cooler... a battery that is basically just a crystal that is charged by means of a linear ratchet pressure piston
