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Multilayer piezoelectric energy scavenger for large current generation

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Journal of Electroceramics Aims and scope

Abstract

Piezoelectric energy harvesting system is promising to the energy source of wireless sensor nodes for ubiquitous sensor networks. The piezoelectric material has been usually considered as a high voltage and low current source. When charging current into the thin film battery or supercapacitor, a larger current is needed to shorten the charging time. In order to increase the current in the piezoelectric energy harvesting, multilayer ceramics were fabricated. N-layer multilayer ceramics decreased the voltage but increased the current N times. The impedance of the multilayer ceramics are matched to 1 kΩ which is similar to the impedance of general electrical devices. The multilayer piezoelectric generator could be directly employed for electrical device without the additional electrical circuit to improve efficiency.

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Acknowledgement

This research was financially supported by a grant Code No. 2E19860 from the Korea Institute of Science and Technology, Korea.

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Author notes

  1. Dae-Yong Jeong

    Present address: Department of Materials Sci. & Eng., Myongji Univ., Gyeonggido, 449-728, Korea

Authors and Affiliations

  1. Thin Film Materials Research Center, Korea Institute of Science and Technology, Seoul, 136-791, South Korea

    Hyun-Cheol Song, Hyung-Chan Kim, Chong-Yun Kang, Hyun-Jai Kim, Seok-Jin Yoon & Dae-Yong Jeong

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  1. Hyun-Cheol Song
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  2. Hyung-Chan Kim
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  3. Chong-Yun Kang
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  4. Hyun-Jai Kim
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Correspondence to Dae-Yong Jeong.

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Song, HC., Kim, HC., Kang, CY. et al. Multilayer piezoelectric energy scavenger for large current generation. J Electroceram 23, 301–304 (2009). https://doi.org/10.1007/s10832-008-9439-9

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  • DOI: https://doi.org/10.1007/s10832-008-9439-9

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