Leafy Solar Cell And Thermal Flask Battery 80C

 These devices were deleted,

lightning contained in a self-heating thermal flask maintained at $80^oC$.  And

a container fill with chlorophyll from meshed up green leafy vegetables.  A metallic conductor draw charges from the slurry.

Both devices are single ended current source ($p^+$ or $e^{-}$, low voltage but high current!).  A switching capacitor may draw charges from the current source and provides a stable output voltage across given a load.

Good night.