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Water-Sloshing-Based Electricity Generating Device via Charge Separation and Accumulation

전하 분리와 축적을 통한 물의 슬로싱 현상 기반 전기에너지 발생 장치

  • Cha, Kyunghwan (School of Mechanical Engineering, Chung-Ang University) ;
  • Heo, Deokjae (School of Mechanical Engineering, Chung-Ang University) ;
  • Lee, Sangmin (School of Mechanical Engineering, Chung-Ang University)
  • Received : 2021.09.24
  • Accepted : 2021.10.01
  • Published : 2022.01.01

Abstract

Liquid-based Triboelectric nanogenerator (L-TENG) is one of the alternatives to solid-based Triboelectric nanogenerator (S-TENG) because of the absence of surface damage which can decrease the durability of the generator. However, the L-TENG also has an obvious drawback of significantly lower output than that of S-TENG. This article produces water-sloshing-based electricity generating device (W-ED) with a new design of L-TENG that improves electrical output in portable form. The dual-electrode system, consisting of closed-loop circuit and inner electrode which enables water to contact directly in the bottle, can generate the open-circuit voltage and the short-circuit current of up to 348 V and 5.1 mA, respectively. By investigating the motion of water for each frequency, we propose that W-ED is suitable device for a variety of human motions. We expect that W-ED can be applied in small electrical devices or sensors in daily-use items.

Keywords

Acknowledgement

본 과제(결과물)는 교육부와 한국연구재단의 재원으로 지원을 받아 수행된 사회맞춤형 산학협력 선도대학(LINC+) 육성사업의 연구 결과입니다.

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