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DC Field | Value | Language |
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dc.citation.endPage | 576 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 568 | - |
dc.citation.title | CHEMISTRY-AN ASIAN JOURNAL | - |
dc.citation.volume | 13 | - |
dc.contributor.author | Choi, Sinho | - |
dc.contributor.author | Su, Dawei | - |
dc.contributor.author | Shin, Myoungsoo | - |
dc.contributor.author | Park, Soojin | - |
dc.contributor.author | Wang, Guoxiu | - |
dc.date.accessioned | 2023-12-21T21:07:51Z | - |
dc.date.available | 2023-12-21T21:07:51Z | - |
dc.date.created | 2018-03-13 | - |
dc.date.issued | 2018-03 | - |
dc.description.abstract | Porous materials have many structural advantages for energy storage and conversion devices such as rechargeable batteries, supercapacitors, and fuel cells. When applied as a host material in lithium-sulfur batteries, porous silica materials with a pomegranate-like architecture can not only act as a buffer matrix for accommodating a large volume change of sulfur, but also suppress the polysulfide shuttle effect. The porous silica/sulfur composite cathodes exhibit excellent electrochemical performances including a high specific capacity of 1450mAhg(-1), a reversible capacity of 82.9% after 100cycles at a rate of C/2 (1C=1672mAg(-1)) and an extended cyclability over 300cycles at 1 C-rate. Furthermore, the high polysulfide adsorption property of porous silica has been proven by ex-situ analyses, showing a relationship between the surface area of silica and polysulfide adsorption ability. In particular, the modified porous silica/sulfur composite cathode, which is treated by a deep-lithiation process in the first discharge step, exhibits a highly reversible capacity of 94.5% at 1C-rate after 300cycles owing to a formation of lithiated-silica frames and stable solid-electrolyte-interphase layers.. | - |
dc.identifier.bibliographicCitation | CHEMISTRY-AN ASIAN JOURNAL, v.13, no.5, pp.568 - 576 | - |
dc.identifier.doi | 10.1002/asia.201701759 | - |
dc.identifier.issn | 1861-4728 | - |
dc.identifier.scopusid | 2-s2.0-85041929223 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23839 | - |
dc.identifier.url | http://onlinelibrary.wiley.com/doi/10.1002/asia.201701759/abstract | - |
dc.identifier.wosid | 000426497800016 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Pomegranate-Structured Silica/Sulfur Composite Cathodes for High-Performance Lithium-Sulfur Batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | lithium-sulfur batteries | - |
dc.subject.keywordAuthor | polysulfide adsorption | - |
dc.subject.keywordAuthor | porous silica | - |
dc.subject.keywordAuthor | solid electrolyte interphase | - |
dc.subject.keywordAuthor | sulfur composite cathodes | - |
dc.subject.keywordPlus | HIERARCHICALLY POROUS CARBONS | - |
dc.subject.keywordPlus | METAL-ORGANIC FRAMEWORKS | - |
dc.subject.keywordPlus | OXYGEN REDUCTION | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | ION BATTERIES | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | CONVERSION | - |
dc.subject.keywordPlus | PARTICLES | - |
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