Electrocatalytic and stoichiometric reactivity of 2D layered siloxene for high-energy-dense lithium-sulfur batteries
DC Field | Value | Language |
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dc.contributor.author | Kang, Hui-Ju | - |
dc.contributor.author | Park, Jae-Woo | - |
dc.contributor.author | Hwang, Hyun Jin | - |
dc.contributor.author | Kim, Heejin | - |
dc.contributor.author | Jang, Kwang-Suk | - |
dc.contributor.author | Ji, Xiulei | - |
dc.contributor.author | Kim, Hae Jin | - |
dc.contributor.author | Im, Won Bin | - |
dc.contributor.author | Jun, Young-Si | - |
dc.date.accessioned | 2022-07-06T14:42:02Z | - |
dc.date.available | 2022-07-06T14:42:02Z | - |
dc.date.issued | 2021-11 | - |
dc.identifier.issn | 2637-9368 | - |
dc.identifier.issn | 2637-9368 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/141162 | - |
dc.description.abstract | Lithium-sulfur batteries (LSBs) have emerged as promising power sources for high-performance devices such as electric vehicles. However, the poor energy density of LSBs owing to polysulfide shuttling and passivation has limited their further market penetration. To mitigate this challenge, two-dimensional (2D) siloxene (2DSi), a Si-based analog of graphene, is utilized as an additive for sulfur cathodes. The 2DSi is fabricated on a large scale by simple solvent extraction of calcium disilicide to form a thin-layered structure of Si planes functionalized with vertically aligned hydroxyl groups in the 2DSi. The stoichiometric reaction of 2DSi with polysulfides generates a thiosulfate redox mediator, secures the intercalation pathway, and reveals Lewis acidic sites within the siloxene galleries. The 2DSi utilizes the corresponding in-situ-formed electrocatalyst, the 2D confinement effect of the layered structure, and the surface affinity based on Lewis acid-base interaction to improve the energy density of 2DSi-based LSB cells. Combined with the commercial carbon-based current collector, 2DSi-based LSB cells achieve a volumetric energy density of 612 Wh L-cell(-1) at 1 mA cm(-2) with minor degradation of 0.17% per cycle, which rivals those of state-of-the-art LSBs. This study presents a method for the industrial production of high-energy-dense LSBs. | - |
dc.format.extent | 15 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | WILEY | - |
dc.title | Electrocatalytic and stoichiometric reactivity of 2D layered siloxene for high-energy-dense lithium-sulfur batteries | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1002/cey2.152 | - |
dc.identifier.scopusid | 2-s2.0-85115938855 | - |
dc.identifier.wosid | 000701430000001 | - |
dc.identifier.bibliographicCitation | CARBON ENERGY, v.3, no.6, pp 976 - 990 | - |
dc.citation.title | CARBON ENERGY | - |
dc.citation.volume | 3 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 976 | - |
dc.citation.endPage | 990 | - |
dc.type.docType | Article; Early Access | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CALCIUM | - |
dc.subject.keywordPlus | SILICON | - |
dc.subject.keywordPlus | MOLECULES | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordAuthor | 2D confinement effects | - |
dc.subject.keywordAuthor | Lewis acid-base interactions | - |
dc.subject.keywordAuthor | lithium-sulfur batteries | - |
dc.subject.keywordAuthor | siloxenes | - |
dc.subject.keywordAuthor | thiosulfate-polythionate redox couple | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/cey2.152 | - |
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