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Flexible self-powered piezo-supercapacitor system for wearable electronics.
Evgenia P Gilshteyn1, Daler Amanbaev1, Maxim V Silibin2,3
1Laboratory of Nanomaterials, Skolkovo Institute of Science and Technology, Nobel str 3, Moscow, 143025, Russia.
Nanotechnology
|May 22, 2018
Summary
This study presents a flexible, transparent piezo-supercapacitor that harvests mechanical energy and stores it. This hybrid device offers a sustainable power source for wearable electronics and sensors.
Area of Science:
- Materials Science
- Energy Storage
- Nanotechnology
Background:
- Flexible and transparent energy storage devices are crucial for emerging applications like wearable electronics and displays.
- Integrating energy harvesting with energy storage in a single device offers a sustainable power solution.
Purpose of the Study:
- To develop a flexible and transparent device that can both harvest mechanical energy and store it.
- To investigate the performance of a hybridized piezo-supercapacitor system.
Main Methods:
- Integration of a piezoelectric poly(vinylidene-trifluoroethylene) (P(VDF-TrFE)) film into a flexible supercapacitor.
- Characterization of the device's energy harvesting and storage capabilities under mechanical impact.
Main Results:
- The integrated piezo-supercapacitor demonstrated a specific capacitance of 50 F g-1.
- An open-circuit voltage of 500 mV was achieved within 20 seconds of mechanical action.
- The device effectively charges the supercapacitor using asymmetric piezoelectric output.
Conclusions:
- The developed hybridized energy harvesting and storage device offers a promising sustainable power source.
- This technology can be extended for powering various sensors in wearable units.
- The flexible and transparent nature of the device opens avenues for optoelectronic applications.
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