High-Energy Layered Oxide Cathodes with Thin Shells for Improved Surface Stability
DC Field | Value | Language |
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dc.contributor.author | Noh, Hyung-Joo | - |
dc.contributor.author | Myung, Seung-Taek | - |
dc.contributor.author | Lee, Yun Jung | - |
dc.contributor.author | Sun, Yang Kook | - |
dc.date.accessioned | 2021-08-02T18:29:15Z | - |
dc.date.available | 2021-08-02T18:29:15Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2014-10 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/25770 | - |
dc.description.abstract | Core-shell, nickel-rich layered oxide materials with a full concentration gradient (FCG) core and thin shells with low nickel content have been investigated. Hierarchically structured core-shell materials have the same FCG core, where the composition gradually changes from Li[Ni0.86Co0.07Mn0.07]O2 to Li[Ni0.67Co0.09Mn0.24]O2 from the center to the outer surface. A thin shell composed of either Li[Ni0.48Co0.26Mn0.26]O2 or Li[Ni0.56Co0.18Mn0.26]O2 was applied to the outer surface of the FCG core. This hierarchical core-shell structure efficiently integrates the benefit of high energy from the Ni-rich core, structural stability and favorable transport of Li+ ions from the FCG core, and surface stability from the low-Ni and high-Mn shell. The core-shell cathodes demonstrate improved cycling performance at 55 °C even up to 4.5 V when compared to the FCG core-only cathode. Shells of low nickel content and a thickness of ∼300 nm provide sufficient surface stability, particularly at elevated temperatures. We suggest this novel core-shell structure as a suitable cathode for power sources such as electric vehicles, where safety and energy density are equally important. © 2014 American Chemical Society. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | High-Energy Layered Oxide Cathodes with Thin Shells for Improved Surface Stability | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Yun Jung | - |
dc.contributor.affiliatedAuthor | Sun, Yang Kook | - |
dc.identifier.doi | 10.1021/cm502774u | - |
dc.identifier.scopusid | 2-s2.0-84908289295 | - |
dc.identifier.wosid | 000343950300020 | - |
dc.identifier.bibliographicCitation | CHEMISTRY OF MATERIALS, v.26, no.20, pp.5973 - 5979 | - |
dc.relation.isPartOf | CHEMISTRY OF MATERIALS | - |
dc.citation.title | CHEMISTRY OF MATERIALS | - |
dc.citation.volume | 26 | - |
dc.citation.number | 20 | - |
dc.citation.startPage | 5973 | - |
dc.citation.endPage | 5979 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | SAFE LITHIUM BATTERIES | - |
dc.subject.keywordPlus | LI-ION BATTERIES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CHALLENGES | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | CELLS | - |
dc.subject.keywordPlus | MN | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/cm502774u | - |
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