Vibrational Energy Harvester based on Electrical Double Layer of Ionic Liquid

14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Yamada, S.^1 ; Mitsuya, H.^2 ; Fujita, H.^1

CIRMM, IIS, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo

1538505, Japan^1

SAGINOMIYA SEISAKUSHO, 535 Sasai, Sayama, Saitama

350-1395, Japan^2

关键词: Electrical double layers;    Energy Harvester;    Vibrating electrodes;    Vibration energy harvesters;    Vibrational energies;    Voltage ranges;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/557/1/012013/pdf
DOI  :  10.1088/1742-6596/557/1/012013

来源: IOP

【 摘 要 】

To boost the output of the vibration energy harvester an order of magnitude higher, we devised a high-performance energy harvester taking advantages of the two characteristics of ionic liquid, namely variable deformation of liquid and the electrical double layer between ionic liquid and metal. The electrical double layer is approximately 1nm thick and works as insulator within the voltage range of ±2.0V. Therefore, we can obtain quite high capacitance(1- 10μ/cm2). Squeezing and drawing ionic liquid between a pair of vibrating electrodes, we can obtain a μW-class energy harvester.