Multi-Roller Structure Triboelectric Nanogenerator for Enhanced Water Wave Energy Harvesting and Energy Management

TL;DR

This paper introduces a multi-roller triboelectric nanogenerator designed for efficient water wave energy harvesting, demonstrating high energy output and potential for powering multiple LEDs, advancing ocean energy technology.

Contribution

It presents a novel multi-roller TENG design with optimized energy output strategies and explores array configurations for enhanced water wave energy harvesting.

Findings

Single MR-TENG generates 602.045 μJ in 100 s

Device achieves 2.06 μA short-circuit current and 166 V open-circuit voltage

Array can power 40 LEDs

Abstract

Wave energy harvesting is critical for advancing the development and utilization of marine resources. In this study, we present a novel multi-roller structure triboelectric nanogenerator (MR-TENG) designed specifically for efficient water wave energy harvesting. The MR-TENG leverages a coupled multi-roller design to significantly enhance its energy harvesting capabilities. The triboelectric layers are composed of polytetrafluoroethylene (PTFE) film and paper, with a grid copper electrode serving as the conductive element. Through an optimized energy output strategy, a single MR-TENG is capable of generating 602.045 {\mu}J of electrical energy within 100 s. The device achieves a short-circuit current (Isc) of approximately 2.06 {\mu}A and an open-circuit voltage (Voc) of around 166 V. We further investigate the impact of different connection modes, including parallel and series configurations, on the performance of MR-TENG arrays. Notably, the electrical energy produced by the MR-TENG array is sufficient to power 40 blue commercial light-emitting diodes (LEDs). This research not only introduces a versatile optimization approach and energy management strategy for roller-structured TENGs but also contributes significantly to the advancement of ocean-based TENG technology.