Liquid-solid contact electrification based on discontinuous-conduction triboelectric nanogenerator induced by radially symmetrical structure

Abstract

Triboelectric nanogenerators (TENGs) for scavenging mechanical energy has been conducted over the past decade with respectable successes. Up to now, the solid-solid TENG has been the dominant side but themselves still have their own drawbacks; thus, the liquid-solid TENG has got attention instead. Here we developed a discontinuous-conduction-based rotary triboelectric nanogenerator based on the liquid-solid electrification. By using the motion-activated switch structure, the induced charges can accumulate on one electrode and then release to another electrode at a specifically designated position. Taking advantage of this process, we can maximize the charge transfer per cycle which also improves the output performance of the developed TENG.