A Stusdy on a Themoelectric Generator using Silicon for Ecofriendly Power Source

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K23523
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0302:Electrical and electronic engineering and related fields
• Research Institution: Tohoku University (2020); Waseda University (2019)
• Principal Investigator: Yamada Shunsuke 東北大学, 工学研究科, 助教 (50811634)
• Project Period (FY): 2019-08-30 – 2021-03-31
• Keywords: 環境発電 / 蓄電素子

Outline of Final Research Achievements

In this work, we have developed a biodegradable supercapacitor using biodegradable metal, ionic liquid, and charcoal. The ionic liquid and charcoal were well mixed to be homogenized, and were coated on the biodegradable metal. A study of cyclic voltammetry was performed on the developed supercapacitor to investigate the electrochemical stability. The supercapacitor remain stable to show no peak within the voltage range from 0V to 1.5V. The galvanostatic charge discharge reveals that the supercapacitor shows the capacaitance of 40 mF to 60 mF with the discharge current of 0.2 mA/cm2 to 2mA/cm2.

Free Research Field

MEMS

Academic Significance and Societal Importance of the Research Achievements

本研究の核となるフレキシブル電極は、有機材料ではなく、金属に切り紙・折り紙構造を付与することで、高い導電性と柔軟性を実現する。さらに、申請者が作製した環境調和型スーパーキャパシタと組み合わせて環境調和型IoT用電源を実現できる。環境調和性を持つ電源は、IoTモジュールだけでなく、柔軟性により、自由曲面に貼り付け用途にも応用可能であるためウェラブルデバイス分野にも産業的な波及効果は大きいと考えている。