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Piezoelectric-Driven Self-Charging Supercapacitor Power Cell
Abstract
In this work, we have fabricated a piezoelectric-driven self-charging supercapacitor power cell (SCSPC) using MnO2 nanowires as positive and negative electrodes and a polyvinylidene difluoride (PVDF)-ZnO film as a separator (as well as a piezoelectric), which directly converts mechanical energy into electrochemical energy. Such a SCSPC consists of a nanogenerator, a supercapacitor, and a power-management system, which can be directly used as a power source. The self-charging capability of SCSPC was demonstrated by mechanical deformation under human palm impact. The SCSPC can be charged to 110 mV (aluminum foil) in 300 s under palm impact. In addition, the green light-emitting diode glowed using serially connected SCSPC as the power source. This finding opens up the possibility of making self-powered flexible hybrid electronic devices.
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Metadata
- Authors
- Ramadoss, A., Saravanakumar, B., Lee, S. W., Kim, Y.-S., Kim, S. J., & Wang, Z. L.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-03-26
- Volume
- 9
- Issue
- 4
- Pages
- 4337-4345
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2002293908
- Cited by
- 289
- References
- 36
- FWCI
- 10.85
- Type
- journal article
- Language
- en
- Open access
- closed
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