The Root Cause of the Rate Performance Improvement After Metal Doping: A Case Study of LiFePO4
DC Field | Value | Language |
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dc.contributor.author | Park, ChangKyoo | - |
dc.contributor.author | Park, Sung Bin | - |
dc.contributor.author | Park, Ji Hun | - |
dc.contributor.author | Shin, Ho Chul | - |
dc.contributor.author | Cho, Won Il | - |
dc.contributor.author | Jang, Ho | - |
dc.date.accessioned | 2021-09-07T14:06:12Z | - |
dc.date.available | 2021-09-07T14:06:12Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2011-03-20 | - |
dc.identifier.issn | 0253-2964 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/112833 | - |
dc.description.abstract | This study investigates a root cause of the improved rate performance of LiFePO4 after metal doping to Fe-sites. This is because the metal doped LiFePO4/C maintains its initial capacity at higher C-rates than undoped one. Using LiFePO4/C and doped LiFe0.97M0.03PO4/C (M=Al3+, Cr3+, Zr4+), which are synthesized by a mechanochemical process followed by one-step heat treatment, the Li content before and after chemical delithiation in the LiEePO(4)/C and the binding energy are compared using atomic absorption spectroscopy (AAS) and X-ray photoelectron spectroscopy (XPS). The results from AAS and XPS indicate that the low Li content of the metal doped LiFePO4/C after chemical delithiation is attributed to the low binding energy induced by weak Li-O interactions. The improved capacity retention of the doped LiFePO4/C at high discharge rates is, therefore, achieved by relatively low binding energy between Li and O ions, which leads to fast Li diffusivity. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN CHEMICAL SOC | - |
dc.subject | RECHARGEABLE LITHIUM BATTERIES | - |
dc.subject | ELECTROCHEMICAL PROPERTIES | - |
dc.subject | PHOSPHO-OLIVINES | - |
dc.subject | CATHODE MATERIAL | - |
dc.subject | CARBON | - |
dc.title | The Root Cause of the Rate Performance Improvement After Metal Doping: A Case Study of LiFePO4 | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jang, Ho | - |
dc.identifier.doi | 10.5012/bkcs.2011.32.3.921 | - |
dc.identifier.scopusid | 2-s2.0-79953251258 | - |
dc.identifier.wosid | 000288832700030 | - |
dc.identifier.bibliographicCitation | BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.32, no.3, pp.921 - 926 | - |
dc.relation.isPartOf | BULLETIN OF THE KOREAN CHEMICAL SOCIETY | - |
dc.citation.title | BULLETIN OF THE KOREAN CHEMICAL SOCIETY | - |
dc.citation.volume | 32 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 921 | - |
dc.citation.endPage | 926 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001536814 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | RECHARGEABLE LITHIUM BATTERIES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | PHOSPHO-OLIVINES | - |
dc.subject.keywordPlus | CATHODE MATERIAL | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordAuthor | LiFePO4 | - |
dc.subject.keywordAuthor | Doping | - |
dc.subject.keywordAuthor | Rate performance | - |
dc.subject.keywordAuthor | XPS | - |
dc.subject.keywordAuthor | Binding energy | - |
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