Abstract
As one of the most promising renewable energies, wind energy is abundant in the natural environment. However, it is still challenging to effectively collect wind energy because of its variable wind speed and unpredictable direction. Here, a triboelectric nanogenerator, which is inspired by ancient Chinese wind bells, has been developed to collect energy from variable-speed and multi-directional wind. The wind-bell-inspired triboelectric nanogenerator (W-TENG) has the capability to generate electricity even at a very low wind speed of 0.5 m s-1. Furthermore, it is able to harvest wind energy effectively from all directions (0-360 degrees). The parameter-optimized W-TENG achieves a maximum output voltage of 9.3V and a maximum current of 0.63µA. Electronic devices including a digital watch and 40 light-emitting diodes (LEDs) are successfully powered by the designed W-TENG, demonstrating its applicability. In this study, it is believed that a novel and effective strategy is provided to harvest energy from variable-speed and multi-directional wind.
Published Version
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