DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, Sung-Nam | ko |
dc.contributor.author | Seo, Jung Yoon | ko |
dc.contributor.author | Jung, Dae Soo | ko |
dc.contributor.author | Ahn, Wook | ko |
dc.contributor.author | Song, Hoon Sub | ko |
dc.contributor.author | Yeon, Sun-Hwa | ko |
dc.contributor.author | Park, Seung-Bin | ko |
dc.date.accessioned | 2015-05-22T02:13:52Z | - |
dc.date.available | 2015-05-22T02:13:52Z | - |
dc.date.created | 2015-01-05 | - |
dc.date.created | 2015-01-05 | - |
dc.date.issued | 2015-02 | - |
dc.identifier.citation | JOURNAL OF ALLOYS AND COMPOUNDS, v.623, pp.55 - 61 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | http://hdl.handle.net/10203/198526 | - |
dc.description.abstract | Spherical Li1.167-xNaxNi0.18Mn0.548Co0.105O2 (0 <= x <= 0.1) particles were prepared by spray pyrolysis, and subjected to electrochemical characterization for lithium battery applications. It was confirmed that Na doping enhances the charge/discharge rate capability. The structure of prepared samples was characterized by XRD: the c-axis lattice parameter increases with increase in the amount of Na ions (parameterized by x, above). The Na-doped sample with x = 0.05 shows capacities of 208 and 184 mA h g (-1) at high current densities of 1.0 C and 2.0 C, respectively. These values are enhanced, compared to values of 189 and 167 mA h g(-1) for the bare sample. The ratio of the capacity at 1.0 C to that at 0.1 C is enhanced from 77% for the bare sample to 84% for the Na-doped sample with x = 0.05. The Li diffusion coefficients obtained from the galvanostatic intermittent titration technique (GITT) are higher for Na-doped samples than for the bare sample. In particular, the Na-doped sample (x = 0.05), in the potential range around 4 V, has a higher DLi+ value of 3.34 x 10(-9) cm(2) s(-1), compared with 1.35 x 10(-9) cm(2) s(-1) for the bare sample. The Na-doped samples (0 < x < 0.075) show high capacity retention: the Na-doped sample (x = 0.05) shows a capacity retention of 92% compared to 83% for the bare sample. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | RECHARGEABLE LITHIUM BATTERIES | - |
dc.subject | ELECTROCHEMICAL PROPERTIES | - |
dc.subject | HIGH-CAPACITY | - |
dc.subject | SECONDARY BATTERIES | - |
dc.subject | CYCLING STABILITY | - |
dc.subject | RATE PERFORMANCE | - |
dc.subject | CO ELECTRODES | - |
dc.subject | MG | - |
dc.subject | CR | - |
dc.subject | MN | - |
dc.title | Rate capability for Na-doped Li1.167Ni0.18Mn0.548Co0.105O2 cathode material and characterization of Li-ion diffusion using galvanostatic intermittent titration technique | - |
dc.type | Article | - |
dc.identifier.wosid | 000345750600009 | - |
dc.identifier.scopusid | 2-s2.0-84910063009 | - |
dc.type.rims | ART | - |
dc.citation.volume | 623 | - |
dc.citation.beginningpage | 55 | - |
dc.citation.endingpage | 61 | - |
dc.citation.publicationname | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.identifier.doi | 10.1016/j.jallcom.2014.09.203 | - |
dc.contributor.localauthor | Park, Seung-Bin | - |
dc.contributor.nonIdAuthor | Jung, Dae Soo | - |
dc.contributor.nonIdAuthor | Ahn, Wook | - |
dc.contributor.nonIdAuthor | Song, Hoon Sub | - |
dc.contributor.nonIdAuthor | Yeon, Sun-Hwa | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Li-rich cathode material | - |
dc.subject.keywordAuthor | Sodium doping | - |
dc.subject.keywordAuthor | Energy efficiency | - |
dc.subject.keywordAuthor | Galvanostatic intermittent titration technique | - |
dc.subject.keywordAuthor | Spray pyrolysis | - |
dc.subject.keywordPlus | RECHARGEABLE LITHIUM BATTERIES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | SECONDARY BATTERIES | - |
dc.subject.keywordPlus | CYCLING STABILITY | - |
dc.subject.keywordPlus | RATE PERFORMANCE | - |
dc.subject.keywordPlus | CO ELECTRODES | - |
dc.subject.keywordPlus | MG | - |
dc.subject.keywordPlus | CR | - |
dc.subject.keywordPlus | MN | - |
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