Core-shell Si@c-PAN particles deposited on graphite as promising anode for lithium-ion batteries
DC Field | Value | Language |
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dc.contributor.author | Nguyen, Quoc Hai | - |
dc.contributor.author | Kim, Il Tae | - |
dc.contributor.author | Hur, Jaehyun | - |
dc.date.available | 2020-02-27T04:41:27Z | - |
dc.date.created | 2020-02-05 | - |
dc.date.issued | 2019-02-20 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1832 | - |
dc.description.abstract | In this study, a three-dimensional silicon@cyclized-polyacrylonitrile@graphite (Si@c-PAN@G) nanocomposite structure, consisting of core-shell Si(core)@c-PAN(shell) deposited on a graphite matrix, is fabricated using simple high-energy ball milling (HEBM) followed by heat-treatment. As an anode material for lithium-ion batteries, which is a thin layer (similar to 2.5 nm) of c-PAN coated on Si nanoparticles, it efficiently accommodates a large volume change of Si particles, inhibiting the pulverization and maintaining an appropriate contact with the current collector. At the same time, the graphite functions as a matrix for Si@c-PAN nanoparticles, which not only prevents the agglomeration of Si@c-PAN particles, but also provides an efficient electron transport during cycling, resulting in an outstanding electrochemical performance for Si@c-PAN@G. This novel electrode exhibits an excellent initial capacity (similar to 1580 mAh g(-1) at 0.2 A g(-1) with a coulombic efficiency of 79%), highly stable cyclic performances (1422 mAh g(-1) at 0.2 A g(-1) with capacity retention of 90% after 50 cycles and 1071 mAh g(-1) at 1 A g(-1) with capacity retention of 85% after 100 cycles), high rate capability (capacity retention of similar to 95% at 3.0 A g(-1) compared with the capacity at 0.2 A g(-1)), and low charge transfer resistance (<30 Omega) compared with other Si-based composite electrodes. To achieve these, a new post-annealing strategy for electrode film, the appropriate binder and the optimum weight ratio between c-PAN and graphite are further investigated. (C) 2018 Elsevier Ltd. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | ELECTROCHIMICA ACTA | - |
dc.subject | SILICON NANOPARTICLES | - |
dc.subject | CARBON NANOFIBERS | - |
dc.subject | ALLOY COMPOSITE | - |
dc.subject | HEAT-TREATMENT | - |
dc.subject | PERFORMANCE | - |
dc.subject | ELECTRODES | - |
dc.subject | BINDERS | - |
dc.subject | MICROSPHERES | - |
dc.subject | EFFICIENT | - |
dc.subject | ANTIMONY | - |
dc.title | Core-shell Si@c-PAN particles deposited on graphite as promising anode for lithium-ion batteries | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000455642500040 | - |
dc.identifier.doi | 10.1016/j.electacta.2018.12.005 | - |
dc.identifier.bibliographicCitation | ELECTROCHIMICA ACTA, v.297, pp.355 - 364 | - |
dc.identifier.scopusid | 2-s2.0-85059320103 | - |
dc.citation.endPage | 364 | - |
dc.citation.startPage | 355 | - |
dc.citation.title | ELECTROCHIMICA ACTA | - |
dc.citation.volume | 297 | - |
dc.contributor.affiliatedAuthor | Nguyen, Quoc Hai | - |
dc.contributor.affiliatedAuthor | Kim, Il Tae | - |
dc.contributor.affiliatedAuthor | Hur, Jaehyun | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Silicon | - |
dc.subject.keywordAuthor | c-PAN | - |
dc.subject.keywordAuthor | Core-shell | - |
dc.subject.keywordAuthor | Post-annealing anode | - |
dc.subject.keywordAuthor | Lithium-ion battery | - |
dc.subject.keywordPlus | SILICON NANOPARTICLES | - |
dc.subject.keywordPlus | CARBON NANOFIBERS | - |
dc.subject.keywordPlus | ALLOY COMPOSITE | - |
dc.subject.keywordPlus | HEAT-TREATMENT | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | BINDERS | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | ANTIMONY | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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