Pitch-derived carbon coated SnO2-CoO yolk-shell microspheres with excellent long-term cycling and rate performances as anode materials for lithium-ion batteries
DC Field | Value | Language |
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dc.contributor.author | Choi, Jae Hun | - |
dc.contributor.author | Park, Gi Dae | - |
dc.contributor.author | Jung, Dae Soo | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-09-01T10:01:05Z | - |
dc.date.available | 2021-09-01T10:01:05Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-08-01 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/63572 | - |
dc.description.abstract | SnO2-based composite materials have been studied as efficient anode materials for lithium-ion batteries. In this study, pitch-derived carbon coated SnO2-CoO yolk-shell microspheres were synthesized by a spray drying process. Pitch is a widely used source material for electrically conductive carbon. Pitch-infiltrated SnO2-Co3O4 were transformed into SnO2-CoO-C yolk-shell microspheres by a carbothermal reduction. SnO2-CoO-C yolk-shell microspheres with a carbon content of 15 wt% exhibited superior cycling and rate performances compared with those of the bare SnO2-Co3O4 microspheres with the same morphologies. The discharge capacities of SnO2-Co3O4 and SnO2-CoO-C at the 100th cycle were 565 and 812 mA h g(-1), while their capacity retentions calculated from the second cycle were 51 and 97%, respectively. Furthermore, SnO2-CoO-C yolk-shell microspheres exhibited high and stable reversible capacities even at an extremely high current density of 30 A g(-1). The discharge capacity of SnO2-CoO-C yolk-shell microspheres at the 1000th cycle at a current density of 3.0 A g(-1) was 775 mA h g(-1). The synergetic effect of the pitch-derived carbon with a high electrical conductivity, catalytic effect of the metallic Co, crystal growth minimization of metallic Co and Sn by reciprocal action, and yolk-shell structure with empty shells provided the SnO2-CoO-C yolk-shell microspheres with excellent lithium-ion storage performances. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | SPRAY-DRYING PROCESS | - |
dc.subject | COMPOSITE MICROSPHERES | - |
dc.subject | NANOWIRE ARRAYS | - |
dc.subject | GRAPHENE | - |
dc.subject | STORAGE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | FABRICATION | - |
dc.subject | SPHERES | - |
dc.subject | NANOSHEETS | - |
dc.subject | NANOTUBES | - |
dc.title | Pitch-derived carbon coated SnO2-CoO yolk-shell microspheres with excellent long-term cycling and rate performances as anode materials for lithium-ion batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1016/j.cej.2019.03.123 | - |
dc.identifier.scopusid | 2-s2.0-85062893584 | - |
dc.identifier.wosid | 000463344800071 | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.369, pp.726 - 735 | - |
dc.relation.isPartOf | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 369 | - |
dc.citation.startPage | 726 | - |
dc.citation.endPage | 735 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | SPRAY-DRYING PROCESS | - |
dc.subject.keywordPlus | COMPOSITE MICROSPHERES | - |
dc.subject.keywordPlus | NANOWIRE ARRAYS | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | SPHERES | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | NANOTUBES | - |
dc.subject.keywordAuthor | Spray drying | - |
dc.subject.keywordAuthor | Yolk-shell | - |
dc.subject.keywordAuthor | Tin oxide | - |
dc.subject.keywordAuthor | Cobalt monoxide | - |
dc.subject.keywordAuthor | Lithium-ion battery | - |
dc.subject.keywordAuthor | Pitch-derived carbon | - |
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