Si7Ti4Ni4 as a buffer material for Si and its electrochemical study for lithium ion batteries
DC Field | Value | Language |
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dc.contributor.author | 유승호 | - |
dc.date.accessioned | 2022-04-11T04:04:06Z | - |
dc.date.available | 2022-04-11T04:04:06Z | - |
dc.date.created | 2022-04-08 | - |
dc.date.issued | 2014-01 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/139976 | - |
dc.description.abstract | Nano-Si embedded Si7Ti4Ni4 is synthesized with the melt spinning method, which is facile, and applicable to mass-production. Si7Ti4Ni4, the buffer material, is electrochemically inactive toward lithium. Nevertheless, Si7Ti4Ni4 has good electrical conductivity, in the order of 10(5) S m(-1), which is more conductive than amorphous carbon that is usually used as a coating material for active material. Furthermore, the surrounding grain boundaries of Si7Ti4Ni4 effectively relax volume expansion of Si. Therefore, it plays a critical role in maintaining the structure of electrode and the integrity of active materials. As a result, nano-Si embedded in Si7Ti4Ni4 shows outstanding cycle performance over 50 cycles at 400 mA g(-1), and it maintains 86% of its specific capacity at 3200 mA g(-1), compared with that of 400 mA g(-1). This indicates that nano-Si embedded in Si7Ti4Ni4 can be a promising anode material for lithium ion batteries. (C) 2013 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Si7Ti4Ni4 as a buffer material for Si and its electrochemical study for lithium ion batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | 유승호 | - |
dc.identifier.doi | 10.1016/j.jpowsour.2013.08.033 | - |
dc.identifier.bibliographicCitation | JOURNAL OF POWER SOURCES, v.246, pp.729 - 735 | - |
dc.relation.isPartOf | JOURNAL OF POWER SOURCES | - |
dc.citation.title | JOURNAL OF POWER SOURCES | - |
dc.citation.volume | 246 | - |
dc.citation.startPage | 729 | - |
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.subject.keywordAuthor | Buffer material | - |
dc.subject.keywordAuthor | Lithium ion battery | - |
dc.subject.keywordAuthor | Silicon | - |
dc.subject.keywordAuthor | Volume expansion | - |
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