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Flexible sodium-ion supercapacitor based on polypyrrole/carbon electrode by use of harmless aqueous electrolyte for wearable devices

2017; Wiley; Volume: 41; Issue: 9 Linguagem: Inglês

10.1002/er.3716

1099-114X

Kyung-Lyul Bae, Kyoungho Kim,

Advancements in Battery Materials

International Journal of Energy ResearchVolume 41, Issue 9 p. 1335-1341 Research Article Flexible sodium-ion supercapacitor based on polypyrrole/carbon electrode by use of harmless aqueous electrolyte for wearable devices Kyung-Lyul Bae, Kyung-Lyul Bae Department of Chemistry, College of Natural Sciences, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141 KoreaSearch for more papers by this authorKyoungho Kim, Corresponding Author Kyoungho Kim khkimecl@cju.ac.kr orcid.org/0000-0003-2427-9934 Department of Solar and Energy Engineering, College of Science and Engineering, Cheongju University, 298, Daeseong-ro, Cheongwon-gu, Chungcheongbuk-do, 28503 Korea Correspondence Kyoungho Kim, Department of Solar and Energy Engineering, College of Science and Engineering, Cheongju University, 298, Daeseong-ro, Cheongwon-gu, Chungcheongbuk-do 28503, Korea. E-mail: khkimecl@cju.ac.krSearch for more papers by this author Kyung-Lyul Bae, Kyung-Lyul Bae Department of Chemistry, College of Natural Sciences, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141 KoreaSearch for more papers by this authorKyoungho Kim, Corresponding Author Kyoungho Kim khkimecl@cju.ac.kr orcid.org/0000-0003-2427-9934 Department of Solar and Energy Engineering, College of Science and Engineering, Cheongju University, 298, Daeseong-ro, Cheongwon-gu, Chungcheongbuk-do, 28503 Korea Correspondence Kyoungho Kim, Department of Solar and Energy Engineering, College of Science and Engineering, Cheongju University, 298, Daeseong-ro, Cheongwon-gu, Chungcheongbuk-do 28503, Korea. E-mail: khkimecl@cju.ac.krSearch for more papers by this author First published: 28 January 2017 https://doi.org/10.1002/er.3716Citations: 19Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Summary With the emergence of various wearable devices, supercapacitors have gained immense attention because of their fast response rates. However, most supercapacitors use hazardous electrolyte materials, such as H2SO4, KOH, and acetonitrile. Leakage of these types of electrolytes during use would be very harmful to human skin. Therefore, a supercapacitor that does not employ hazardous materials is an attractive option for use in the energy-storage components of wearable devices. Herein, we successfully demonstrate a Na-ion supercapacitor (NISC) with a polypyrrole/carbon-coated heat-treated carbon felt electrode and an aqueous 0.4 M NaCl electrolyte, which is not harmful. Furthermore, our NISC with polypyrrole/carbon-coated heat-treated carbon felt exhibits a high specific capacitance (31.09 F g−1) and a fast response rate (chargeable at 0.5-s intervals). The proposed NISC with no harmful materials in the electrolyte has an excellent response rate. It will establish useful guidelines for the energy-storage components in wearable devices Copyright © 2017 John Wiley & Sons, Ltd. Citing Literature Supporting Information Table S1. N2 adsorption–desorption measurement data by use of BET calculation method. Figure S2. Cyclic stability of the supercapacitor based on polypyrrole/carbon electrode by use of harmless aqueous NaCl electrolyte for wearable devices during 10 000 cycles. Filename Description er3716-sup-0001-SI.docxWord 2007 document , 2 MB Supporting info item Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume41, Issue9July 2017Pages 1335-1341 RelatedInformation