Vibrational energy harvester based on electrical double layer of ionic liquid

Shunsuke Yamada, H. Mitsuya, H. Fujita

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)


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.

Original languageEnglish
Article number012013
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2014 Jan 1
Externally publishedYes
Event14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications, PowerMEMS 2014 - Awaji Island, Hyogo, Japan
Duration: 2014 Nov 182014 Nov 21

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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