Surface‐modified polyethylene separator with hydrophilic property for enhancing the electrochemical performance of lithium‐ion battery

International Journal of Energy ResearchVolume 44, Issue 8 p. 6651-6659 RESEARCH ARTICLE Surface-modified polyethylene separator with hydrophilic property for enhancing the electrochemical performance of lithium-ion battery Yong-keon Ahn, Department of Energy Engineering, Konkuk University, Seoul, South KoreaSearch for more papers by this authorYong Kab Kwon, Department of Energy Engineering, Konkuk University, Seoul, South KoreaSearch for more papers by this authorKi Jae Kim, Corresponding Author kijaekim@konkuk.ac.kr orcid.org/0000-0002-2166-7467 Department of Energy Engineering, Konkuk University, Seoul, South Korea Correspondence Ki Jae Kim, Department of Energy Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea. Email: kijaekim@konkuk.ac.krSearch for more papers by this author Yong-keon Ahn, Department of Energy Engineering, Konkuk University, Seoul, South KoreaSearch for more papers by this authorYong Kab Kwon, Department of Energy Engineering, Konkuk University, Seoul, South KoreaSearch for more papers by this authorKi Jae Kim, Corresponding Author kijaekim@konkuk.ac.kr orcid.org/0000-0002-2166-7467 Department of Energy Engineering, Konkuk University, Seoul, South Korea Correspondence Ki Jae Kim, Department of Energy Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea. Email: kijaekim@konkuk.ac.krSearch for more papers by this author First published: 07 April 2020 https://doi.org/10.1002/er.5401Citations: 6 Funding information: National Research Foundation of Korea, Grant/Award Numbers: 2018M1A2A2063354, 2019R1A2C1004694 Read 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 onEmailFacebookTwitterLinked InRedditWechat Summary The suggested surface treatment using ammonium persulfate (APS) successfully introduces hydrophilic functional groups onto the microporous structure of the polyethylene (PE) separators, leading to a high affinity toward polar liquid electrolytes without degrading the intrinsic physical properties of the separator. This improves the lithium-ion migration and ionic conductivity of the APS-treated separator, affording a stable cycle performance (92.5% at 90th cycle) and significantly improved rate capability (87.5% at 3 C). Citing Literature Supporting Information Filename Description er5401-sup-0001-Figures.docxWord 2007 document , 342.9 KB Figure S1 Contact angle measurements of bare PE and PE separators treated with different concentrations of APS solutions. Figure S2. Engineering strength-strain curves of bare PE and PE separators treated with different APS concentrations. 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. Volume44, Issue825 June 2020Pages 6651-6659 RelatedInformation