Ubiquitous magneto-mechano-electric generator
SCIE
SCOPUS
- Title
- Ubiquitous magneto-mechano-electric generator
- Authors
- CHOI, SI YOUNG; J. Ryu; J. -E. Kang; Y. Zhou; W. -H. Yoon; D. -S. Park; J. -J. Choi; B. -D. Hahn; C. -W. Ahn; J. -W. Kim; Y. -D. Kim; S. Priya; S. Y. Lee; S. Jeong; D. -Y. Jeong
- Date Issued
- 2015-04
- Publisher
- ROYAL SOC CHEMISTRY
- Abstract
- Stray magnetic field considered as harmful noise for the human body can be a ubiquitous energy source. We are surrounded with 50/60 Hz parasitic magnetic noise arising from power delivery infrastructure, but it cannot be readily utilized by traditional electromagnetic harvesters. Here, we introduce a novel magnetomechano- electric (MME) generator with a colossal power density that can turn on 35 LEDs and drive a wireless sensor network under a weak magnetic field of 5-7 x 10(-4) T at a low frequency of 60 Hz. The MME generator is a cantilever structured magnetoelectric (ME) laminate composite in which the < 011 > oriented anisotropic single crystal fiber composite (SFC) is bonded to Ni plate and Nd permanent magnet proof mass. The ME laminate composite has a strong ME coupling (alpha(ME) similar to 160 V cm(-1) Oe(-1)) even without magnetic bias due to the intrinsic property of Ni. The MME generator is also found to exhibit a colossal output power density of 46 mW cm(-3) Oe(-2) under a weak magnetic field of 1.6 x 10(-4) T at 60 Hz. This MME generator can be a ubiquitous power source for wireless sensor networks, low power electric devices, and wireless charging systems by harvesting tiny amounts of parasitic magnetic energy from our living environment.
- Keywords
- COMPOSITES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/39371
- DOI
- 10.1039/c5ee00414d
- ISSN
- 1754-5692
- Article Type
- Article
- Citation
- Energy & Environmental Science, vol. 8, no. 8, page. 2402 - 2408, 2015-04
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- There are no files associated with this item.
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