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DC Field | Value | Language |
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dc.citation.endPage | 3196 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 3192 | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.citation.volume | 111 | - |
dc.contributor.author | Cho, Jaephil | - |
dc.contributor.author | Kim, Yoojin | - |
dc.contributor.author | Kim, Min Gyu | - |
dc.date.accessioned | 2023-12-22T09:37:09Z | - |
dc.date.available | 2023-12-22T09:37:09Z | - |
dc.date.created | 2014-05-19 | - |
dc.date.issued | 2007-02 | - |
dc.description.abstract | A hydrothermal method was used to prepare hexagonal layered Li[Ni 0.41Li0.08Mn0.51]O2 nanoplates (R3̄m) from a mixed solution of Ni0.14Mn0.86O 2 and LiOH·H2O at 200°C. In addition, an ion-exchange method was used at room temperature to obtain the Ni 0.45Mn0.55O2 precursor from K 0.32MnO2-birnessite. Even though the spinel phase (Fd3m) was dominant at 150°C, it was completely converted into a hexagonal layered phase at 200°C in a condition of excess LiOH·H2O. The as-prepared Li[Ni0.41Li0.08Mn0.51]O2 consisted of stacked nanoplates with a plate thickness of approximately 7 nm. Ex situ X-ray diffraction and X-ray absorption spectroscopy were used to study electrochemical Li insertion and extraction reactions of Li[Ni 0.41Li0.08Mn0.51]O2. The results show that the Li[Ni0.41Li0.08Mn0.51]O 2 electrode operates predominately with the redox couple Ni 2+/Ni4+ between 4.8 and 2 V. On the other hand, the oxidation state of Mn was constant, even at a 4.8 V change, indicating that the 4+ state was predominant. The cycling behavior between 2 and 4.8 V at a current rate of 60 mA/g shows a maximum capacity of 200 mA h/g with only a slight capacity fading out to 30 cycles. | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICAL CHEMISTRY C, v.111, no.7, pp.3192 - 3196 | - |
dc.identifier.doi | 10.1021/jp067116n | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.scopusid | 2-s2.0-33847755492 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/4643 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33847755492 | - |
dc.identifier.wosid | 000245005800049 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Synthesis and characterization of Li[Ni0.41Li0.08Mn0.51]O-2 nanoplates for Li battery cathode material | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | NICKEL MANGANESE OXIDES | - |
dc.subject.keywordPlus | SOL-GEL SYNTHESIS | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | ELECTRODE MATERIALS | - |
dc.subject.keywordPlus | LITHIUM BATTERIES | - |
dc.subject.keywordPlus | LAYERED LIMNO2 | - |
dc.subject.keywordPlus | BIRNESSITE | - |
dc.subject.keywordPlus | COPRECIPITATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
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