Resilient electret film‐based vibrational energy harvesters with a V‐shaped counter electrode
Abstract Vibrational energy harvesters, which can convert mechanical energy distributed widely in the surrounding environment to electrical energy in a convenient, eco‐friendly and sustainable way, have attracted great attention in both academia and industry. In this study, a resilient electret film...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-06-01
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| Series: | IET Nanodielectrics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/nde2.12040 |
| _version_ | 1797805508889935872 |
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| author | Xiaoya Yang Xingchen Ma Chuan Ding Gerhard M. Sessler Heinz vonSeggern Mario Kupnik Ying Dai Pengfei He Xiaoqing Zhang |
| author_facet | Xiaoya Yang Xingchen Ma Chuan Ding Gerhard M. Sessler Heinz vonSeggern Mario Kupnik Ying Dai Pengfei He Xiaoqing Zhang |
| author_sort | Xiaoya Yang |
| collection | DOAJ |
| description | Abstract Vibrational energy harvesters, which can convert mechanical energy distributed widely in the surrounding environment to electrical energy in a convenient, eco‐friendly and sustainable way, have attracted great attention in both academia and industry. In this study, a resilient electret film‐based vibrational energy harvester with a V‐shaped counter electrode is introduced, simulated and constructed. A negatively charged fluorinated polyethylene propylene (FEP) electret film with a wavy shape was adopted in the devices, achieving simultaneously a stable embedded biased voltage and a large tensile deformation during vibration. The influences of the factors on the performance of the device, including the initial stretching state of the resilient electret film, seismic mass and depth of the V‐shape counter electrode, were analyzed comprehensively with finite element simulation and compared to experiments. Further, the structure of the device was optimised for generating a high output power, and a good agreement between the simulation and experimental data was achieved. Additionally, the resonant frequency of the device can be easily tuned between 28 and 68 Hz by merely adjusting the initial stretching state of the wavy FEP electret film, guaranteeing great superiority for broad bandwidth energy harvesting applications. For an optimised energy harvester with a volume of only 15 × 5 × 1.7 mm3 and a tiny seismic mass of 25 mg, and a normalized output power referring to 1 × g (g is the gravity of the Earth) up to 547 μW was obtained at its resonant frequency of 28 Hz. These results demonstrate that such a miniaturised vibrational energy harvester is a promising electrical energy supplier for low‐power‐consumption electronic devices, in particular in wireless sensor networks. |
| first_indexed | 2024-03-13T05:53:06Z |
| format | Article |
| id | doaj.art-9f588f6289984bf683928d762963004b |
| institution | Directory Open Access Journal |
| issn | 2514-3255 |
| language | English |
| last_indexed | 2024-03-13T05:53:06Z |
| publishDate | 2023-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Nanodielectrics |
| spelling | doaj.art-9f588f6289984bf683928d762963004b2023-06-13T09:54:10ZengWileyIET Nanodielectrics2514-32552023-06-0162364510.1049/nde2.12040Resilient electret film‐based vibrational energy harvesters with a V‐shaped counter electrodeXiaoya Yang0Xingchen Ma1Chuan Ding2Gerhard M. Sessler3Heinz vonSeggern4Mario Kupnik5Ying Dai6Pengfei He7Xiaoqing Zhang8School of Aerospace Engineering and Applied Mechanics Tongji University Shanghai ChinaSchool of Aerospace Engineering and Applied Mechanics Tongji University Shanghai ChinaSchool of Aerospace Engineering and Applied Mechanics Tongji University Shanghai ChinaDepartment of Electrical Engineering and Information Technology Technische Universität Darmstadt Darmstadt GermanyDepartment of Materials and Earth Sciences Technische Universität Darmstadt Darmstadt GermanyDepartment of Electrical Engineering and Information Technology Technische Universität Darmstadt Darmstadt GermanySchool of Aerospace Engineering and Applied Mechanics Tongji University Shanghai ChinaSchool of Aerospace Engineering and Applied Mechanics Tongji University Shanghai ChinaShanghai Key Laboratory of Special Artificial Microstructure Materials and Technology School of Physics Science and Engineering Tongji University Shanghai ChinaAbstract Vibrational energy harvesters, which can convert mechanical energy distributed widely in the surrounding environment to electrical energy in a convenient, eco‐friendly and sustainable way, have attracted great attention in both academia and industry. In this study, a resilient electret film‐based vibrational energy harvester with a V‐shaped counter electrode is introduced, simulated and constructed. A negatively charged fluorinated polyethylene propylene (FEP) electret film with a wavy shape was adopted in the devices, achieving simultaneously a stable embedded biased voltage and a large tensile deformation during vibration. The influences of the factors on the performance of the device, including the initial stretching state of the resilient electret film, seismic mass and depth of the V‐shape counter electrode, were analyzed comprehensively with finite element simulation and compared to experiments. Further, the structure of the device was optimised for generating a high output power, and a good agreement between the simulation and experimental data was achieved. Additionally, the resonant frequency of the device can be easily tuned between 28 and 68 Hz by merely adjusting the initial stretching state of the wavy FEP electret film, guaranteeing great superiority for broad bandwidth energy harvesting applications. For an optimised energy harvester with a volume of only 15 × 5 × 1.7 mm3 and a tiny seismic mass of 25 mg, and a normalized output power referring to 1 × g (g is the gravity of the Earth) up to 547 μW was obtained at its resonant frequency of 28 Hz. These results demonstrate that such a miniaturised vibrational energy harvester is a promising electrical energy supplier for low‐power‐consumption electronic devices, in particular in wireless sensor networks.https://doi.org/10.1049/nde2.12040resilient electret filmtunable resonant frequencyV‐shaped counter electrodevibrational energy harvesting |
| spellingShingle | Xiaoya Yang Xingchen Ma Chuan Ding Gerhard M. Sessler Heinz vonSeggern Mario Kupnik Ying Dai Pengfei He Xiaoqing Zhang Resilient electret film‐based vibrational energy harvesters with a V‐shaped counter electrode IET Nanodielectrics resilient electret film tunable resonant frequency V‐shaped counter electrode vibrational energy harvesting |
| title | Resilient electret film‐based vibrational energy harvesters with a V‐shaped counter electrode |
| title_full | Resilient electret film‐based vibrational energy harvesters with a V‐shaped counter electrode |
| title_fullStr | Resilient electret film‐based vibrational energy harvesters with a V‐shaped counter electrode |
| title_full_unstemmed | Resilient electret film‐based vibrational energy harvesters with a V‐shaped counter electrode |
| title_short | Resilient electret film‐based vibrational energy harvesters with a V‐shaped counter electrode |
| title_sort | resilient electret film based vibrational energy harvesters with a v shaped counter electrode |
| topic | resilient electret film tunable resonant frequency V‐shaped counter electrode vibrational energy harvesting |
| url | https://doi.org/10.1049/nde2.12040 |
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