DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, SC | ko |
dc.contributor.author | Han, YS | ko |
dc.contributor.author | Lee, PS | ko |
dc.contributor.author | Ahn, S | ko |
dc.contributor.author | Lee, HM | ko |
dc.contributor.author | Lee, Jai Young | ko |
dc.date.accessioned | 2013-03-03T16:22:41Z | - |
dc.date.available | 2013-03-03T16:22:41Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2001-12 | - |
dc.identifier.citation | JOURNAL OF POWER SOURCES, v.102, no.1-2, pp.130 - 134 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | http://hdl.handle.net/10203/79443 | - |
dc.description.abstract | iron was substituted for Ni in LiNi0.8Co0.2 in order to enhance its electrochemical properties such as cycle life and rate capability. LiNi0.8-xFexCo0.2O2 (0 less than or equal to x less than or equal to 0.1) wag synthesized in flowing oxygen, for 12-48 h at 650-800 degreesC, and its structural and electrochemical properties were characterized with X-ray diffraction (XRD), cyclic voltammetry (CV) and charge-discharge tests. The XRD patterns of LiNi0.8-xFexCo0.2O2 showed that the alpha -NaFeO2 type layered structure was maintained up to x = 0.1. As Fe was substituted for Ni up to x = 0.05, the rate capability of LiNi0.8-xFexCo0.2O2 was improved. LiNi0.75Fe0.05Co0.2O2 showed better cycle stability than LiNi0.8Co0.2O2. XRD measurements indicated that the lattice Of LiNi0.75Fe0.05Co0.2O2 expanded less than that of LiNi0.8Co0.2O2 when the lithium was de-intercalated. CV curves of LiNi0.8-xFexCo0.2O2 showed current peaks, which are related to the phase transitions, diminished with Fe substitution during charging and discharging owing to the decrease of Ni3+. Consequently, the improved cycle stability of LiNi0.75Fe0.05Co0.2O2 May be attributed to the decrease of phase transition. (C) 2001 Elsevier Science B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | M = CO | - |
dc.subject | ION BATTERIES | - |
dc.subject | CATHODE | - |
dc.subject | LICOO2 | - |
dc.subject | R(3)OVER-BAR-M | - |
dc.subject | PERFORMANCE | - |
dc.subject | CELLS | - |
dc.title | Effects of iron substitution for nickel on electrochemical properties of LiNi0.8Co0.2O2 for lithium rechargeable batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000172597000018 | - |
dc.type.rims | ART | - |
dc.citation.volume | 102 | - |
dc.citation.issue | 1-2 | - |
dc.citation.beginningpage | 130 | - |
dc.citation.endingpage | 134 | - |
dc.citation.publicationname | JOURNAL OF POWER SOURCES | - |
dc.identifier.doi | 10.1016/S0378-7753(01)00780-7 | - |
dc.contributor.nonIdAuthor | Park, SC | - |
dc.contributor.nonIdAuthor | Han, YS | - |
dc.contributor.nonIdAuthor | Lee, PS | - |
dc.contributor.nonIdAuthor | Ahn, S | - |
dc.contributor.nonIdAuthor | Lee, HM | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | lithium secondary battery | - |
dc.subject.keywordAuthor | LiNi1-xCoxO2 | - |
dc.subject.keywordAuthor | iron substitution | - |
dc.subject.keywordAuthor | rate capability | - |
dc.subject.keywordAuthor | cycle life | - |
dc.subject.keywordPlus | M = CO | - |
dc.subject.keywordPlus | ION BATTERIES | - |
dc.subject.keywordPlus | CATHODE | - |
dc.subject.keywordPlus | LICOO2 | - |
dc.subject.keywordPlus | R(3)OVER-BAR-M | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CELLS | - |
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