Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2007.11a
- /
- Pages.301-302
- /
- 2007
Multilayer Piezoelectric Energy Harvester and Charging Property in Capacitor
다층형 압전세라믹 발전기 제작 및 capacitor 충전 특성
- Kim, Hyung-Chan (KIST) ;
- Song, Hyun-Cheol (KIST) ;
- Lee, Ju-Young (KIST) ;
- Jeong, Dae-Yong (KIST) ;
- Kim, Hyun-Jae (KIST) ;
- Yoon, Seok-Jin (KIST) ;
- Ju, Byeong-Kwon (Korea Univ.)
- 김형찬 (한국과학기술연구원) ;
- 송현철 (한국과학기술연구원) ;
- 이주영 (한국과학기술연구원) ;
- 정대용 (한국과학기술연구원) ;
- 김현재 (한국과학기술연구원) ;
- 윤석진 (한국과학기술연구원) ;
- 주병권 (고려대학교)
- Published : 2007.11.01
Abstract
Energy harvesting from the vibration through the piezoelectric effect has been studied for powering the wireless sensor node. For the driving wireless sensor node, the generated energy is required to store the capacitor or battery. For the rapid charging, higher voltage than battery's capacity voltage and a large current are necessitated. However, the piezoelectric energy harvester is generally featured as a high voltage and low current generator. As it is known that the generated current in the piezoelectric energy harvester is related to an area of electrode of piezoelectric ceramics, we fabricated the multilayer ceramics to increase effective area for the faster charging. The energy harvesting properties and charging characteristics of multilyaer ceramics were investigated and discussed.