Investigation of Binary Metal (Ni, Co) Selenite as Li-Ion Battery Anode Materials and Their Conversion Reaction Mechanism with Li Ions
DC Field | Value | Language |
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dc.contributor.author | Park, Gi Dae | - |
dc.contributor.author | Yang, Sung Jin | - |
dc.contributor.author | Lee, Jong-Heun | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-08-31T20:02:03Z | - |
dc.date.available | 2021-08-31T20:02:03Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2019-12-20 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/60895 | - |
dc.description.abstract | Highly efficient anode materials with novel compositions for Li-ion batteries are actively being researched. Multicomponent metal selenite is a promising candidate, capable of improving their electrochemical performance through the formation of metal oxide and selenide heterostructure nanocrystals during the first cycle. Here, the binary nickel-cobalt selenite derived from Ni-Co Prussian blue analogs (PBA) is chosen as the first target material: the Ni-Co PBA are selenized and partially oxidized in sequence, yielding (NiCo)SeO3 phase with a small amount of metal selenate. The conversion mechanism of (NiCo)SeO3 for Li-ion storage is studied by cyclic voltammetry, in situ X-ray diffraction, ex situ X-ray photoelectron spectroscopy, in situ electrochemical impedance spectroscopy, and ex situ transmission electron microscopy. The reversible reaction mechanism of (NiCo)SeO3 with the Li ions is described by the reaction: NiO + CoO + xSeO(2) + (1 - x)Se + (4x + 6)Li+ + (4x + 6)e(-) <-> Ni + Co + (2x + 2)Li2O + Li2Se. To enhance electrochemical properties, polydopamine-derived carbon is uniformly coated on (NiCo)SeO3, resulting in excellent cycling and rate performances for Li-ion storage. The discharge capacity of C-coated (NiCo)SeO3 is 680 mAh g(-1) for the 1500th cycle when cycled at a current density of 5 A g(-1). | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | SOLID-ELECTROLYTE INTERPHASE | - |
dc.subject | HIGH-RATE CAPABILITY | - |
dc.subject | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject | SUPERIOR PERFORMANCE | - |
dc.subject | STORAGE | - |
dc.subject | NANOSHEETS | - |
dc.subject | GRAPHITE | - |
dc.subject | NANOCRYSTALS | - |
dc.subject | EFFICIENT | - |
dc.subject | NANORODS | - |
dc.title | Investigation of Binary Metal (Ni, Co) Selenite as Li-Ion Battery Anode Materials and Their Conversion Reaction Mechanism with Li Ions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Heun | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1002/smll.201905289 | - |
dc.identifier.scopusid | 2-s2.0-85075419472 | - |
dc.identifier.wosid | 000496828300001 | - |
dc.identifier.bibliographicCitation | SMALL, v.15, no.51 | - |
dc.relation.isPartOf | SMALL | - |
dc.citation.title | SMALL | - |
dc.citation.volume | 15 | - |
dc.citation.number | 51 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | SOLID-ELECTROLYTE INTERPHASE | - |
dc.subject.keywordPlus | HIGH-RATE CAPABILITY | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | SUPERIOR PERFORMANCE | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | GRAPHITE | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | NANORODS | - |
dc.subject.keywordAuthor | anode materials | - |
dc.subject.keywordAuthor | binary metal selenite | - |
dc.subject.keywordAuthor | conversion mechanism | - |
dc.subject.keywordAuthor | Li-ion batteries | - |
dc.subject.keywordAuthor | Prussian blue analogues | - |
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