Methods to Improve Energy Conversion Efficiency of Dielectric Elastomer Generators

Heng Tong Cheng; Zhen Qiang Song; Shijie Zhu; Kazuhiro Ohyama

doi:10.4028/www.scientific.net/KEM.804.63

Paper Titles

Microstructure and Properties of Diffusion Bonded Mg/Al Joints
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Effect of Mg-Based of Multi-Layered Structure on Hydrogen Desorption Properties
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Simulation of a Self-Excited Power Generation System for Dielectric Elastomer Generation
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Development of Evaluation Method for Damage of Oxidation CoNiCrAlY Coating
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RETRACTED: Corrosion Behavior and Mechanical Properties of Mg-Based Alloys by Rapid Solidification Technology of Twin Roll Casting
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Analysis on Mechanical Behavior of Acrylate Dielectric Elastomers
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Methods to Improve Energy Conversion Efficiency of Dielectric Elastomer Generators
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Preparation, Characterization and Tribological Properties of Diamond-Like Carbon Film on AZ31 Magnesium Alloy
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Synthesis of Photocatalytic Niobate Nanosheet/Polymer Composite Microgel Particles through Microfluidic Approach
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 804Methods to Improve Energy Conversion Efficiency of...

Methods to Improve Energy Conversion Efficiency of Dielectric Elastomer Generators

Abstract:

Dielectric elastomer generators (DEGs) are based on the electromechanical response of the dielectric elastomer film sandwiched between the compliant electrodes on each side, which are capable of converting mechanical energy from diverse sources (e.g, ocean wave) into electrical energy. In essence, DEG is a voltage up-converter using mechanical energy to increase the electrical energy of the charge on a soft capacitor. We evaluated the effect of input voltage and the pre-stretch ratios on energy conversion efficiency of DEG. With a power supply of 2.2kV and pre-stretch ratio of 2, the maximum net electrical energy density and energy conversion efficiency in a single harvesting cycle were measured to be 413 J/kg and 15.8%, respectively. The experimental results showed that, with the higher input voltage and the larger stretch ratio range, higher the energy conversion performance of DEG can be achieved.

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Periodical:

Key Engineering Materials (Volume 804)

Pages:

63-67

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.804.63

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Online since:

May 2019

Authors:

Heng Tong Cheng*, Zhen Qiang Song, Shijie Zhu, Kazuhiro Ohyama

Keywords:

Dielectric Elastomer Generators, Energy Conversion Efficiency, Energy Density, Pre-Stretch Ratio

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Creative Commons CC BY 4.0

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* - Corresponding Author

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