3D-printed novel triboelectric generator based on saw-toothed button structure

This paper presents the design, fabrication, and testing of a novel 3D-printed triboelectric generator. By adopting the saw-toothed button structure, the friction surface at the interface is enlarged and enclosed, which helps to increase power generation capability and shrink device volume. The major parts of the proposed device is fabricated through 3D-printing, and the entire device is assembled to be the size of an AA battery. Testing results show that maximal voltage spikes of 3.9V peak-to-peak voltage is achieved as the button is repeatedly pressed and released at around 1Hz, proving the functionality of the proposed device.