Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Jung, Kyu-Nam | ko |
dc.contributor.author | Choi, Jae-Yong | ko |
dc.contributor.author | Shin, Hyun-Seop | ko |
dc.contributor.author | Huu, Ha Tran | ko |
dc.contributor.author | Im, Won Bin | ko |
dc.contributor.author | Lee, Jong-Won | ko |
dc.date.accessioned | 2021-01-22T07:34:03Z | - |
dc.date.available | 2021-01-22T07:34:03Z | - |
dc.date.created | 2020-07-30 | - |
dc.date.issued | 2020-08 | - |
dc.identifier.citation | Solid State Sciences, v.106, pp.106334 | - |
dc.identifier.issn | 1293-2558 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/12801 | - |
dc.description.abstract | O3-type Na[Ni1/3Fe1/3Mn1/3]O2 (NaNFM) is considered as a promising cathode material for sodium-ion batteries; however, its poor cycling stability is still a concern. In this study, we discuss the structural, surface and electrochemical properties of Mg-doped NaMgx[Ni1/3Fe1/3Mn1/3]1–xO2 materials and their enhanced cycling performance. The variations of the lattice parameters by substitution of Mg ion and its uniform distribution on the particles are confirmed using X-ray diffraction and transmission electron microscopy. The optimized NaMg0.05[Ni1/3Fe1/3Mn1/3]0.95O2 delivers a discharge capacity of ~120 mAh g−1 and has a diffusion coefficient of Na ranging from 6.5 × 10−13 to 2.7 × 10−10 cm2 s−1. In particular, it shows a relatively high discharge capacity of 42 mAh g−1 even at a high current density of 1200 mA g−1 and exhibits considerably enhanced cycling stability (77% capacity retention after 50 cycles), compared with that of the undoped NaNFM (40%). Based on structural and electrochemical analyses, it is suggested that Mg doping can effectively suppress the irreversible structural degradation and induce more reversible phase transitions; this results in a more stable cycling performance of the Mg-doped NaNFM than that of undoped NaNFM. © 2020 Elsevier Masson SAS | - |
dc.language | English | - |
dc.publisher | Elsevier Masson SAS | - |
dc.title | Mg-doped Na[Ni1/3Fe1/3Mn1/3]O-2 with enhanced cycle stability as a cathode material for sodium-ion batteries | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.solidstatesciences.2020.106334 | - |
dc.identifier.wosid | 000591261700010 | - |
dc.identifier.scopusid | 2-s2.0-85087065987 | - |
dc.type.local | Article(Overseas) | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.contributor.nonIdAuthor | Jung, Kyu-Nam | - |
dc.contributor.nonIdAuthor | Choi, Jae-Yong | - |
dc.contributor.nonIdAuthor | Shin, Hyun-Seop | - |
dc.contributor.nonIdAuthor | Huu, Ha Tran | - |
dc.contributor.nonIdAuthor | Im, Won Bin | - |
dc.identifier.citationVolume | 106 | - |
dc.identifier.citationStartPage | 106334 | - |
dc.identifier.citationTitle | Solid State Sciences | - |
dc.type.journalArticle | Article | - |
dc.description.isOpenAccess | N | - |
dc.subject.keywordAuthor | Sodium-ion battery | - |
dc.subject.keywordAuthor | Cathode | - |
dc.subject.keywordAuthor | Layered oxide | - |
dc.subject.keywordAuthor | Mg doping | - |
dc.subject.keywordAuthor | Electrochemistry | - |
dc.subject.keywordPlus | HYBRID STRUCTURES | - |
dc.subject.keywordPlus | RATE PERFORMANCE | - |
dc.subject.keywordPlus | ELECTRODE | - |
dc.subject.keywordPlus | O3-TYPE | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | SUBSTITUTION | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Won | - |
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