Size effects of micro-pattern on lithium metal surface on the electrochemical performance of lithium metal secondary batteries

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dc.contributor.authorPark, Joonamko
dc.contributor.authorKim, Dohwanko
dc.contributor.authorJin, Daheeko
dc.contributor.authorPhatak, Charudattako
dc.contributor.authorCho, Kuk Youngko
dc.contributor.authorLee, Young-Giko
dc.contributor.authorHONG, DANIEL SEUNGBUMko
dc.contributor.authorRyou, Myung-Hyunko
dc.contributor.authorLee, Yong Minko
dc.date.accessioned2018-12-20T08:01:37Z-
dc.date.available2018-12-20T08:01:37Z-
dc.date.created2018-12-14-
dc.date.created2018-12-14-
dc.date.issued2018-12-
dc.identifier.citationJOURNAL OF POWER SOURCES, v.408, pp.136 - 142-
dc.identifier.issn0378-7753-
dc.identifier.urihttp://hdl.handle.net/10203/248680-
dc.description.abstractTwo micro-patterns of different sizes (50 and 80 μm) are designed to have equivalent capacities of 1.06 and 2.44 mAh cm−2 by building a computational battery model. After preparing two stamps each possessing a micro-pattern design, the corresponding pattern is properly imprinted on the surface of 100 μm lithium metal, which is confirmed by scanning electron microscopy. When both micro-patterned lithium metals are electrochemically reduced and oxidized up to 1 mAh cm−2 in Li/Li symmetric cells at 1 or 2 mA cm−2, the 80 μm-patterned lithium shows a more stabilized lower overpotential during long-term cycling than the 50 μm-patterned and bare lithium, probably due to the lithium anchoring effect and a larger empty volume in the patterns. Additionally, an overflow of lithium deposits is easily observed in the 50 μm-patterned lithium metal, while the 80 μm-patterned lithium metal holds most of the lithium deposits within the patterns. When both micro-patterned lithium metals are assembled to full cells with a LiNi0·6Co0·2Mn0·2O2 cathode of 2 mAh cm−2, the 80 μm-patterned lithium metal shows much better electrochemical performances with stable plating/stripping behavior within the patterns. © 2018 Elsevier B.V.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.titleSize effects of micro-pattern on lithium metal surface on the electrochemical performance of lithium metal secondary batteries-
dc.typeArticle-
dc.identifier.wosid000451936200017-
dc.identifier.scopusid2-s2.0-85053855814-
dc.type.rimsART-
dc.citation.volume408-
dc.citation.beginningpage136-
dc.citation.endingpage142-
dc.citation.publicationnameJOURNAL OF POWER SOURCES-
dc.identifier.doi10.1016/j.jpowsour.2018.09.061-
dc.contributor.localauthorHONG, DANIEL SEUNGBUM-
dc.contributor.nonIdAuthorPark, Joonam-
dc.contributor.nonIdAuthorKim, Dohwan-
dc.contributor.nonIdAuthorJin, Dahee-
dc.contributor.nonIdAuthorPhatak, Charudatta-
dc.contributor.nonIdAuthorCho, Kuk Young-
dc.contributor.nonIdAuthorLee, Young-Gi-
dc.contributor.nonIdAuthorRyou, Myung-Hyun-
dc.contributor.nonIdAuthorLee, Yong Min-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorMicro-pattern-
dc.subject.keywordAuthorLithium metal-
dc.subject.keywordAuthorPlating and stripping-
dc.subject.keywordAuthorModeling-
dc.subject.keywordAuthorSecondary battery-
dc.subject.keywordPlusSULFUR BATTERIES-
dc.subject.keywordPlusION BATTERIES-
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