Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 선양국 | - |
dc.date.accessioned | 2018-03-08T04:36:28Z | - |
dc.date.available | 2018-03-08T04:36:28Z | - |
dc.date.issued | 2012-07 | - |
dc.identifier.citation | JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 권: 159, 호: 1, 페이지: A1-A5 | en_US |
dc.identifier.issn | 0013-4651 | - |
dc.identifier.uri | http://jes.ecsdl.org/content/159/1/A1.short | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/43544 | - |
dc.description.abstract | Two novel core-shell cathode materials with average compositions of Li[Ni(0.82)Co(0.04)Mn(0.14)]O(2) and Li[Ni(0.81)Co(0.06)Mn(0.13)]O(2) were synthesized via coprecipitation. Each core-shell material had a common Li[Ni(0.9)Co(0.05)Mn(0.05)]O(2) core which was completely encapsulated by two different concentration-gradient shells with stable surface compositions of Li[Ni(0.67)Co(0.01)Mn(0.32)]O(2) and Li[Ni0.62Co0.14Mn0.24]O(2). Electrochemical and thermal properties of the two materials were investigated and compared to those of the core Li[Ni(0.9)Co(0.05)Mn(0.05)]O(2) material. The Li[Ni(0.82)Co(0.04)Mn(0.14)]O(2) with a high concentration of Mn in the surface layer exhibited improved cycling performance and structural and thermal stability compared to Li[Ni(0.81)Co(0.06)Mn(0.13)]O(2) as well as the core material without the concentration gradient shell. Electrochemical impedance spectroscopy and electron microscopy showed that Mn concentration in surface layer played an important role in stabilizing the surface structure and thus suppressing the increase in the interfacial resistance between the cathode and the electrolyte. (C) 2011 The Electrochemical Society. [DOI: 10.1149/ 2.004201jes] | en_US |
dc.description.sponsorship | This research was supported by WCU (World Class University) program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (R31-10092). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELECTROCHEMICAL SOC INC, 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA | en_US |
dc.subject | LITHIUM-ION BATTERIES | en_US |
dc.subject | POSITIVE ELECTRODE MATERIALS | en_US |
dc.subject | HIGH-ENERGY | en_US |
dc.subject | PERFORMANCE | en_US |
dc.subject | COPRECIPITATION | en_US |
dc.subject | SPECTROSCOPY | en_US |
dc.subject | TEMPERATURE | en_US |
dc.subject | PARTICLES | en_US |
dc.subject | CELLS | en_US |
dc.title | Effect of Mn Content in Surface on the Electrochemical Properties of Core-Shell Structured Cathode Materials | en_US |
dc.type | Article | en_US |
dc.relation.no | 1 | - |
dc.relation.volume | 159 | - |
dc.identifier.doi | 10.1149/2.004201jes | - |
dc.relation.page | 1-5 | - |
dc.relation.journal | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | - |
dc.contributor.googleauthor | Sun, Yang-Kook | - |
dc.contributor.googleauthor | Noh, Hyung-Joo | - |
dc.contributor.googleauthor | Yoon, Chong S. | - |
dc.relation.code | 2012205950 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ENERGY ENGINEERING | - |
dc.identifier.pid | yksun | - |
dc.identifier.researcherID | B-9157-2013 | - |
dc.identifier.orcid | http://orcid.org/0000-0002-0117-0170 | - |
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