Enhancement of electrostatic induction current of energy harvester by using a gelatinized ionic liquid

Shunsuke Yamada, Hiroyuki Mitsuya, Simpei Ono, Hiroshi Toshiyoshi, Hiroyuki Fujita

Research output: Contribution to journalArticle

Abstract

A gelatinized ionic liquid of [TMPA] + [TFSI] suspended in a polymer is proposed for the first time as a dielectric material for micro-electromechanical systems (MEMS) vibrational energy harvesters. Owing to the high-density charges in the electrical double layer (EDL) formed at the gel/electrode interface, a high contrast of capacitance modulation is realized, thereby enhancing the electrostatic induction current. A typical current of 4.6 µA rms cm -2 is experimentally confirmed for a 10 kΩ load resistance connected to a DC voltage of 1.5 V, which is thought to be 86-fold greater than that produced by an energy harvester with a simple air-gap.

Original languageEnglish
Pages (from-to)7-14
Number of pages8
Journalieej transactions on sensors and micromachines
Volume139
Issue number1
DOIs
Publication statusPublished - 2019 Jan 1
Externally publishedYes

Fingerprint

Harvesters
Ionic liquids
Electrostatics
Charge density
MEMS
Capacitance
Gels
Modulation
Electrodes
Electric potential
Polymers
Air

Keywords

  • Energy harvesting
  • Ionic liquid
  • Power generator
  • Vibration

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Enhancement of electrostatic induction current of energy harvester by using a gelatinized ionic liquid. / Yamada, Shunsuke; Mitsuya, Hiroyuki; Ono, Simpei; Toshiyoshi, Hiroshi; Fujita, Hiroyuki.

In: ieej transactions on sensors and micromachines, Vol. 139, No. 1, 01.01.2019, p. 7-14.

Research output: Contribution to journalArticle

Yamada, Shunsuke ; Mitsuya, Hiroyuki ; Ono, Simpei ; Toshiyoshi, Hiroshi ; Fujita, Hiroyuki. / Enhancement of electrostatic induction current of energy harvester by using a gelatinized ionic liquid. In: ieej transactions on sensors and micromachines. 2019 ; Vol. 139, No. 1. pp. 7-14.
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