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Title: Selective current collecting design for spring-type energy harvesters

Abstract

Here we present a high performance spring-type piezoelectric energy harvester that selectively collects current from the inner part of a spring shell. We analyzed themain reason behind the low efficiency of the initial design using finite element models and proposed a selective current collecting design that can considerably improve the electrical conversion efficiency of the energy harvester. We found that the newly designed energy harvester increases the output voltage by 8 times leading to an output power of 2.21 mW under an impulsive load of 2.18 N when compared with the conventional design. We envision that selective current collecting design will be used in spring-based self-powered active sensors and energy scavenging devices.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Research Foundation of Korea (NRF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1356649
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
RSC Advances
Additional Journal Information:
Journal Volume: 5; Journal Issue: 14; Journal ID: ISSN 2046-2069
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
active sensor; energy harvesting; energy scavenging; piezoelectric; spring-type energy harvester

Citation Formats

Kim, Dongjin, Roh, Hee Seok, Kim, Yeontae, No, Kwangsoo, and Hong, Seungbum. Selective current collecting design for spring-type energy harvesters. United States: N. p., 2015. Web. doi:10.1039/C4RA16443A.
Kim, Dongjin, Roh, Hee Seok, Kim, Yeontae, No, Kwangsoo, & Hong, Seungbum. Selective current collecting design for spring-type energy harvesters. United States. https://doi.org/10.1039/C4RA16443A
Kim, Dongjin, Roh, Hee Seok, Kim, Yeontae, No, Kwangsoo, and Hong, Seungbum. 2015. "Selective current collecting design for spring-type energy harvesters". United States. https://doi.org/10.1039/C4RA16443A.
@article{osti_1356649,
title = {Selective current collecting design for spring-type energy harvesters},
author = {Kim, Dongjin and Roh, Hee Seok and Kim, Yeontae and No, Kwangsoo and Hong, Seungbum},
abstractNote = {Here we present a high performance spring-type piezoelectric energy harvester that selectively collects current from the inner part of a spring shell. We analyzed themain reason behind the low efficiency of the initial design using finite element models and proposed a selective current collecting design that can considerably improve the electrical conversion efficiency of the energy harvester. We found that the newly designed energy harvester increases the output voltage by 8 times leading to an output power of 2.21 mW under an impulsive load of 2.18 N when compared with the conventional design. We envision that selective current collecting design will be used in spring-based self-powered active sensors and energy scavenging devices.},
doi = {10.1039/C4RA16443A},
url = {https://www.osti.gov/biblio/1356649}, journal = {RSC Advances},
issn = {2046-2069},
number = 14,
volume = 5,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}