Vibrational Energy Harvester with Electric Double Layer Electrets

被引：1

作者：

Ono, Shimpei ^{[1
]}

Miwa, Kazumoto ^{[1
]}

Shimizu, Sunao ^{[1
]}

Watanabe, Yuichiro ^{[2
]}

Wei, Alexander ^{[2
]}

机构：

[1] Cent Res Inst Elect Power Insuustry, Mat Sci Res Lab, Yokosuka, Kanagawa, Japan

[2] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

2020 SYMPOSIUM ON DESIGN, TEST, INTEGRATION & PACKAGING OF MEMS AND MOEMS (DTIP) | 2020年

关键词：

Vibrational energy harvester; electric double layer electret; SUPERCONDUCTIVITY;

D O I：

10.1109/dtip51112.2020.9139133

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We have demonstrated We have demonstrated a new type of vibrational energy harvester based on an electric double layer (EDL) electret which relies on an electrochemical concept. It is well known that when a voltage is applied on an electrolyte, EDL are formed after the ionic redistribution at the electrode/liquid interface. Owing to the extremely high capacitance of EDL, EDL electret has the capability to push the charge accumulation that is well beyond the limit of any electret. We applied this concept for a vibrational energy harvester. By mechanically modulating interfacial area between vibrating electrode and the EDL electret, the electrode is electrostatically charged and discharged at different phases and electric current is generated. Thanks to large capacitance of the EDL electrets the obtained power density becomes as high as 200 mu W/cm(2) with resistance of 1M Omega with output voltage 3V even with low frequency vibration as low as 1 Hz. Therefore, it would be possible to apply vibrational energy harvester with the EDL electrets as an eco-friendly replacement for a battery or auxiliary power source.

引用

页数：4

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