Optimization of Triboelectric Nanogenerator Charging Systems for Efficient Energy Harvesting and Storage
- 22 December 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electron Devices
- Vol. 62 (2), 641-647
- https://doi.org/10.1109/ted.2014.2377728
Abstract
Triboelectric nanogenerator (TENG) technology has emerged as a new mechanical energy harvesting technology with numerous advantages. This paper analyzes its charging behavior together with a load capacitor. Through numerical and analytical modeling, the charging performance of a TENG with a bridge rectifier under periodic external mechanical motion is completely analogous to that of a dc voltage source in series with an internal resistance. An optimum load capacitance that matches the TENGs impedance is observed for the maximum stored energy. This optimum load capacitance is theoretically detected to be linearly proportional to the charging cycle numbers and the inherent TENG capacitance. Experiments were also performed to further validate our theoretical anticipation and show the potential application of this paper in guiding real experimental designs.Keywords
Funding Information
- U.S. Department of Energy through the Office of Basic Energy Sciences (DE-FG02-07ER46394)
- International Center for Materials Nanoarchitectonics (MANA) through the National Institute for Materials Science, Japan
- Thousand Talents Program for the Pioneer Researcher and their innovation team, China
- Hightower Chair Foundation
- Sungkyunkwan University, Korea
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