Wind Turbine‐Driven Liquid–Solid Triboelectric Nanogenerator: A Compact and Robust Solution for Portable Wind Energy Harvesting

In recent years, triboelectric nanogenerators (TENG) have emerged as a promising technology for wind energy harvesting. The main limitation of commonly used solid–solid TENGs is the wear and tear caused by prolonged friction. Liquid–solid TENG (LS‐TENG) addresses these challenges by using liquid as a triboelectric material, reducing friction, increasing the contact area, and improving performance. This study proposes an innovative wind energy harvester that integrates an Archimedes turbine with a liquid–solid TENG (ATLS‐TENG). The ATLS‐TENG utilizes a crank‐slider mechanism with a linear guide to convert rotational motion into linear motion, Bennet's circuit for charge storage, and a novel magnetic reed switch gear system for automated energy discharge to power electronics. The results show that a half‐filled LS‐TENG achieves a peak power output of 2.6 μW at a load of 250 MΩ. The ATLS‐TENG self‐starts at a wind speed of 2.6 m/s, weighs 1 kg, and has dimensions of 0.28 × 0.41 × 0.18 m, making it compact. Additionally, the ATLS‐TENG successfully powers eight light‐emitting diodes (LEDs) with the aid of a Bennet circuit. The study demonstrates that the ATLS‐TENG is a highly promising, portable, low‐cost solution for efficiently harvesting wind energy to meet small‐scale energy demands.