Decrease in dendritic growth and overpotential through in‐situ generated lithium‐aluminum alloys for lithium metal batteries

International Journal of Energy ResearchVolume 45, Issue 11 p. 16884-16890 SHORT COMMUNICATION Decrease in dendritic growth and overpotential through in-situ generated lithium-aluminum alloys for lithium metal batteries Jihyun Jang, Jihyun Jang orcid.org/0000-0001-8438-140X Department of Chemical and Biological Engineering, Seoul National University, Seoul, South KoreaSearch for more papers by this authorHaebeen Kim, Haebeen Kim Graduated School of Knowledge-based Technology and Energy, Korea Polytechnic University, Siheung, South KoreaSearch for more papers by this authorJi Heon Ryu, Corresponding Author Ji Heon Ryu [email protected] orcid.org/0000-0001-5358-1265 Graduated School of Knowledge-based Technology and Energy, Korea Polytechnic University, Siheung, South Korea Correspondence Ji Heon Ryu, Graduated School of Knowledge-based Technology and Energy, Korea Polytechnic University, Siheung 15073, South Korea. Email: [email protected]Search for more papers by this author Jihyun Jang, Jihyun Jang orcid.org/0000-0001-8438-140X Department of Chemical and Biological Engineering, Seoul National University, Seoul, South KoreaSearch for more papers by this authorHaebeen Kim, Haebeen Kim Graduated School of Knowledge-based Technology and Energy, Korea Polytechnic University, Siheung, South KoreaSearch for more papers by this authorJi Heon Ryu, Corresponding Author Ji Heon Ryu [email protected] orcid.org/0000-0001-5358-1265 Graduated School of Knowledge-based Technology and Energy, Korea Polytechnic University, Siheung, South Korea Correspondence Ji Heon Ryu, Graduated School of Knowledge-based Technology and Energy, Korea Polytechnic University, Siheung 15073, South Korea. Email: [email protected]Search for more papers by this author First published: 11 May 2021 https://doi.org/10.1002/er.6846 Funding information: Korea Institute for Advancement of Technology, Grant/Award Number: P0002007; National Research Foundation of Korea, Grant/Award Number: NRF-2019R1F1A1058642 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 Summary Although the need for the development of lithium metal batteries to further enhance the energy density of conventional lithium-ion batteries is increasing, the large overpotential and dendritic growth during lithium-ion deposition and dissolution impedes their commercialization. In this study, we propose a method of adding aluminum sheets on the surface of the lithium metal negative electrode that can improve performance without significantly changing the present battery fabrication processes. In this method, the surface of the negative electrode is changed to a lithium-aluminum alloy after the injection of electrolyte through a self-discharge reaction. The treated surface helps reduce overpotential and dendritic growth by creating a uniform current distribution and lowering the activation energy of lithium-ion deposition and dissolution. Owing to these advantages, full-cells manufactured with lithium titanium oxide also exhibit low resistance and good cycle performance at a fast C-rate. Volume45, Issue11September 2021Pages 16884-16890 RelatedInformation