@article{Li2021, 
author = {Gui Li and Guanlin Liu and Wencong He and Li Long and Bangxing Li and Zhao Wang and Qian Tang and Wenlin Liu and Chenguo Hu},
title = {Miura folding based charge-excitation triboelectric nanogenerator for portable power supply},
year = {2021},
journal = {Nano Research},
volume = {14},
number = {11},
pages = {4204-4210},
keywords = {Miura folding, triboelectric nanogenerator, charge excitation, half-wave rectifier circuit},
url = {https://www.sciopen.com/article/10.1007/s12274-021-3401-4},
doi = {10.1007/s12274-021-3401-4},
abstract = {Miniaturized mobile electronic devices have aroused great attention due to their convenience to daily life. However, they still face a problem that power supply from the conventional cell needs to be regularly charged or replaced. Portable electricity supply collecting energy from environment is highly desired. Herein, a highly flexible and stretchable Miura folding based triboelectric nanogenerator (MF-TENG) is prepared by using flexible polyethylene terephthalate (PET) as a folding substrate with a double working side design, specifically one side as the main TENG (M-TENG) and other side as the excitation TENG (E-TENG). The E-TENG supplements charge to M-TENG by a half-wave rectifier circuit. This design increases the TENG working area and reduces its volume. The output performance of the TENG based on Miura folding with charge excitation called MF-CE-TENG is greatly boosted. The optimal output charge and maximum peak power of MF-CE-TENG achieves 1.54 μC and 5.17 mW at 1 Hz, respectively, which is 4.61 and 10.55 times as much as that of MF-TENG without charge excitation. To demonstrate its applications, the MF-CE-TENG is used to light up 456 LEDs brightly and charge a 100 μF capacitor to 6.07 V in 5 min. A calculator and a temperature-humidity sensor work normally powered by MF-CE-TENG with an energy management module. This work provides a new strategy to enhance the output energy of Miura folding TENG by applying a charge excitation mode for the first time, which might be an effective approach to be used in other TENGs.}
}