A Membrane Magnetoelastic Generator for Acoustic Energy Harvesting
Abstract Acoustic waves are a type of energy propagation through a medium with a low energy density, which makes it challenging to be converted into electricity. Here, a membrane magnetoelastic generator is presented as a fundamentally new technology for acoustic energy harvesting that is centered o...
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| Format: | Article |
| Language: | English |
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Wiley
2025-05-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202409063 |
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| author | Ziyuan Che Jing Xu Xiao Wan Chrystal Duan Jun Chen |
| author_facet | Ziyuan Che Jing Xu Xiao Wan Chrystal Duan Jun Chen |
| author_sort | Ziyuan Che |
| collection | DOAJ |
| description | Abstract Acoustic waves are a type of energy propagation through a medium with a low energy density, which makes it challenging to be converted into electricity. Here, a membrane magnetoelastic generator is presented as a fundamentally new technology for acoustic energy harvesting that is centered on a coupling of magnetoelastic effect and electromagnetic induction. It is as thin as 400 µm, holds a skin‐alike modulus of 2.59 × 107 Pa, a low internal impedance of 137 Ω, and a high current density of 107 mA m⁻2 at a sound pressure level (SPL) of 95 dB. It can efficiently harvest acoustic energy to charge a 47 µF commercial capacitor to 2 V in 20 s. With an all‐in‐one‐body design, the membrane magnetoelastic generator shows stable electrical output against environmental moisture and particulates. Toward practical application, it is demonstrated to harvest acoustic energy from a vehicle stereo and use recycled energy to charge a smartphone. Its inherent water‐/dust‐proof features open new possibilities for acoustic energy harvesting from city buildings, highways, airplanes, and even battlefields. |
| format | Article |
| id | doaj-art-add69844daf44b2ab7aa003d981f09c2 |
| institution | OA Journals |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-add69844daf44b2ab7aa003d981f09c22025-08-20T02:02:16ZengWileyAdvanced Science2198-38442025-05-011220n/an/a10.1002/advs.202409063A Membrane Magnetoelastic Generator for Acoustic Energy HarvestingZiyuan Che0Jing Xu1Xiao Wan2Chrystal Duan3Jun Chen4Department of Bioengineering University of California, Los Angeles Los Angeles CA 90095 USADepartment of Bioengineering University of California, Los Angeles Los Angeles CA 90095 USADepartment of Bioengineering University of California, Los Angeles Los Angeles CA 90095 USADepartment of Bioengineering University of California, Los Angeles Los Angeles CA 90095 USADepartment of Bioengineering University of California, Los Angeles Los Angeles CA 90095 USAAbstract Acoustic waves are a type of energy propagation through a medium with a low energy density, which makes it challenging to be converted into electricity. Here, a membrane magnetoelastic generator is presented as a fundamentally new technology for acoustic energy harvesting that is centered on a coupling of magnetoelastic effect and electromagnetic induction. It is as thin as 400 µm, holds a skin‐alike modulus of 2.59 × 107 Pa, a low internal impedance of 137 Ω, and a high current density of 107 mA m⁻2 at a sound pressure level (SPL) of 95 dB. It can efficiently harvest acoustic energy to charge a 47 µF commercial capacitor to 2 V in 20 s. With an all‐in‐one‐body design, the membrane magnetoelastic generator shows stable electrical output against environmental moisture and particulates. Toward practical application, it is demonstrated to harvest acoustic energy from a vehicle stereo and use recycled energy to charge a smartphone. Its inherent water‐/dust‐proof features open new possibilities for acoustic energy harvesting from city buildings, highways, airplanes, and even battlefields.https://doi.org/10.1002/advs.202409063acoustic energy harvestingclean energymagnetoelastic effectsoft system |
| spellingShingle | Ziyuan Che Jing Xu Xiao Wan Chrystal Duan Jun Chen A Membrane Magnetoelastic Generator for Acoustic Energy Harvesting Advanced Science acoustic energy harvesting clean energy magnetoelastic effect soft system |
| title | A Membrane Magnetoelastic Generator for Acoustic Energy Harvesting |
| title_full | A Membrane Magnetoelastic Generator for Acoustic Energy Harvesting |
| title_fullStr | A Membrane Magnetoelastic Generator for Acoustic Energy Harvesting |
| title_full_unstemmed | A Membrane Magnetoelastic Generator for Acoustic Energy Harvesting |
| title_short | A Membrane Magnetoelastic Generator for Acoustic Energy Harvesting |
| title_sort | membrane magnetoelastic generator for acoustic energy harvesting |
| topic | acoustic energy harvesting clean energy magnetoelastic effect soft system |
| url | https://doi.org/10.1002/advs.202409063 |
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