Mini-Generator Based on Self-Propelled Vertical Motion of a Functionally Cooperating Device Driven by H2 -Forming Reaction.

Mini-generators based on locomotion of small objects have aroused widespread attention because of their potential application in powering small-scale electronic devices. Although improvements have been made in the development of mini-generators, there are still some key challenges such as low power output and energy conversion efficiency, which limit the potential application of mini-generators. Herein, through integrating a superhydrophobic surface, chemical reaction and solenoid coil/magnet into a system, an innovative mini-generator is designed, which can convert chemical energy into electrical energy through mechanical form. As a result, the energy conversion efficiency and output power are both three hundred times higher than previously reported results and can be applied to power light-emitting diodes without amplification. We believe that the proposed mini-generator provides more chance for the application of self-supplying power sources for electronic devices.