A paper-based electrostatic kinetic energy harvester with stacked multiple electret films made of electrospun polymer nanofibers

16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Lu, Y.^1 ; Amroun, D.^1 ; Leprince-Wang, Y.^1 ; Basset, P.^1

Université Paris-Est, ESYCOM(EA2552), UPEM, ESIEE Paris, CNAM, France^1

关键词: Diode rectifier;    Electret films;    Electrospun polymer nanofibers;    Energy Harvester;    Finger tapping;    Optimal number;    Storage capacitor;    Storage stability;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/773/1/012032/pdf
DOI  :  10.1088/1742-6596/773/1/012032

来源: IOP

【 摘 要 】

This paper reports the first flexible electrostatic kinetic energy harvester (e-KEH) with electret nanofibrous films obtained by electrospinning and paper-based electrodes. The nanofibrous electret outperforms plenary thin film Parylene in the storage stability of charge: the surface potential is stabilized within 1 day, without any obvious minishing during the following 9 days. The output power of the device is improved by implementing multiple electret layers, where the optimal number of electret layer is 3. With a finger tapping activation, this first prototype with the optimal configuration gives a maximum peak power of 45.6 μW with the optimal load of 16 MΩ. Working with a full-wave diode rectifier and a storage capacitor of 10nF, the voltage reaches 8.5 V with 450 strokes.