Origami-inspired electret-based triboelectric generator for biomechanical and ocean wave energy harvesting

Tao, Kai, Yi, Haiping, Yang, Yang, Chang, Honglong, Wu, Jin, Tang, Lihua, Yang, Zhaoshu, Wang, Nan, Hu, Liangxing, Fu, Yong Qing, Miao, Jianmin and Yuan, Weizheng (2019) Origami-inspired electret-based triboelectric generator for biomechanical and ocean wave energy harvesting. Nano Energy. p. 104197. ISSN 2211-2855 (In Press)

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Tao et al - Origami-inspired electret-based triboelectric generator for biomechanical and ocean wave energy harvesting AAM.pdf - Accepted Version
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Official URL: https://doi.org/10.1016/j.nanoen.2019.104197

Abstract

One of the critical issues for the conventional TENGs for applications in biomechanical and blue energy harvesting is to develop adaptive, simple-structured, high performance but low-cost TENGs for the complex excitation conditions. To solve this problem, we propose an origami-inspired TENG integrated with folded thin film electret, which can be facilely formed from two pieces of liquid crystal polymer (LCP) strips through high degrees of paper folding. It has been proved efficient for harvesting energy from both sinusoidal vibrations and impulse excitations which are universally existed in the ambient environment. Double-side corona discharging process is employed to maximize the charge density generated by the electret thin films. Attributing to the excellent elastic property of self-rebounding spring structures based on the origami design, the flexible TENGs can be readily integrated into smart shoes, floors, watches and clothes for wearable and energy harvesting applications. Triggered by impulse excitation of gentle finger tapping, instantaneous open-circuit voltage and short-circuit current of 1000 V and 110 μA, respectively, have been obtained with a remarkable peak power density of 0.67 mW/cm3 (or 1.2 mW/g). A spherical floating buoy generator integrating multiple origami TENGs is further developed to harvest ocean wave energy at various frequencies and amplitudes as well as in arbitrary directions. The outcomes of this work offer new insights of realizing single structured TENG designs for multifunctional applications.

Item Type: Article
Uncontrolled Keywords: Triboelectric nanogenerator, Electret, Origami, Vibration energy harvesting, Wave energy harvesting, Multifunctional
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Paul Burns
Date Deposited: 18 Oct 2019 12:16
Last Modified: 11 Nov 2019 16:15
URI: http://nrl.northumbria.ac.uk/id/eprint/41159

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