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dc.contributor.authorGueon, Donghee-
dc.contributor.authorLee, Jaehyun-
dc.contributor.authorLee, Joong Kee-
dc.contributor.authorMoon, Jun Hyuk-
dc.date.accessioned2024-01-20T04:33:14Z-
dc.date.available2024-01-20T04:33:14Z-
dc.date.created2021-09-03-
dc.date.issued2016-04-
dc.identifier.issn2046-2069-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/124260-
dc.description.abstractThe uniform dispersion of Si materials in a carbon matrix while maintaining the nanomorphology of Si is required to achieve higher performance lithium-ion batteries (LIBs). Carbon-coated silicon nanoparticles embedded in monodisperse carbon spheres (C-SNP/CSs) were assembled by a simple mixing approach. We obtained high silicon contents up to 56 wt% for the composite electrodes. The C-SNP/CS anodes delivered a reversible specific capacity of 1230 mAh g (1) for 56 wt% Si and 953 mA h g (1) for 44 wt% Si at 800 mA g (1) after 150 charge/discharge cycles. The capacity retention after 150 cycles was 73% for the 56 wt% Si and 86% for 44 wt% Si C-SNP/CS electrodes, while the bare C-SNPs without CSs displayed only 32% retention. The high cycle performance indicates that the CSs effectively alleviated the mechanical stress induced by the large volume changes of Si during the charge/discharge cycles. Moreover, the high capacity retention reveals the high electrical conductivity of the electrodes, provided by the assembled morphology the CSs and the carbon-shell on the silicon nanoparticles(SNPs). The use of CSs with C-SNPs is a facile method to obtain a uniformly-dispersed mixture and can be readily scaled for practical applications.-
dc.languageEnglish-
dc.publisherROYAL SOC CHEMISTRY-
dc.subjectANODE MATERIAL-
dc.subjectHIGH-CAPACITY-
dc.subjectCYCLING PERFORMANCE-
dc.subjectPOROUS SILICON-
dc.subjectCOMPOSITE-
dc.subjectSI-
dc.titleCarbon-coated silicon nanoparticle-embedded carbon sphere assembly electrodes with enhanced performance for lithium-ion batteries-
dc.typeArticle-
dc.identifier.doi10.1039/c6ra00238b-
dc.description.journalClass1-
dc.identifier.bibliographicCitationRSC ADVANCES, v.6, no.44, pp.38012 - 38017-
dc.citation.titleRSC ADVANCES-
dc.citation.volume6-
dc.citation.number44-
dc.citation.startPage38012-
dc.citation.endPage38017-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000374495400065-
dc.identifier.scopusid2-s2.0-84966270960-
dc.relation.journalWebOfScienceCategoryChemistry, Multidisciplinary-
dc.relation.journalResearchAreaChemistry-
dc.type.docTypeArticle-
dc.subject.keywordPlusANODE MATERIAL-
dc.subject.keywordPlusHIGH-CAPACITY-
dc.subject.keywordPlusCYCLING PERFORMANCE-
dc.subject.keywordPlusPOROUS SILICON-
dc.subject.keywordPlusCOMPOSITE-
dc.subject.keywordPlusSI-
dc.subject.keywordAuthorCarbon coated silicon nanoparticle-
dc.subject.keywordAuthorlithium ion batteries-
dc.subject.keywordAuthorassembly-
dc.subject.keywordAuthorcarbon sphere-
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KIST Article > 2016
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