Electrochemical properties of yolk-shell structured layered-layered composite cathode powders prepared by spray pyrolysis
DC Field | Value | Language |
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dc.contributor.author | Kim, Jung Hyun | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.contributor.author | Choi, Yun Ju | - |
dc.contributor.author | Kim, Yang Soo | - |
dc.contributor.author | Lee, Jong-Heun | - |
dc.date.accessioned | 2021-09-05T03:58:19Z | - |
dc.date.available | 2021-09-05T03:58:19Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-10-20 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/97076 | - |
dc.description.abstract | Layered-layered yolk-shell powders with composition 0.6Li(Li1/3Mn2/3)O-2 center dot 0.4Li(Ni1/3Co1/3Mn1/3)O-2 are prepared by spray pyrolysis. Metal oxides-carbon composite powders are first formed as an intermediate product near the reactor entrance by drying and decomposition of droplets. Combustion, contraction, and recombustion processes of intermediate product produce yolk-shell-structured powders. The yolk-shell structure of the powders prepared directly by spray pyrolysis is maintained even after post-treatment at 800 degrees C; this treatment temperature yields the best electrochemical performance. The composition of the powders post-treated at 800 degrees C is Li1.12Ni0.14Co0.14Mn0.59O2. Mean grain sizes of the yolk-shell 0.6Li(Li1/3Mn2/3)O-2 center dot 0.4Li(Ni1/3Co1/3Mn1/3)O-2 powders, post-treated at 700, 750, and 800 degrees C, measured from high resolution TEM images, are 47, 54, and 79 nm, respectively, and their BET surface areas are 14, 9, and 7 m(2) g(-1). The initial discharge capacities of the powders, post-treated at the above temperatures, are 188, 280, and 239 mA h g(-1), respectively, and their initial Coulombic efficiencies are 87, 80, and 78%. Discharge capacities after 50 cycles of the post-treated powders are 81, 194, and 183 mA h g(-1), respectively, and the corresponding capacity retentions are 43, 70, and 77%. (C) 2014 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | LITHIUM-ION BATTERIES | - |
dc.subject | MESOPOROUS SPHERES | - |
dc.subject | DRUG-DELIVERY | - |
dc.subject | ELECTRODES | - |
dc.subject | PERFORMANCE | - |
dc.subject | CELLS | - |
dc.subject | ANODE | - |
dc.subject | OXIDE | - |
dc.subject | COPRECIPITATION | - |
dc.subject | NANOSTRUCTURES | - |
dc.title | Electrochemical properties of yolk-shell structured layered-layered composite cathode powders prepared by spray pyrolysis | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Heun | - |
dc.identifier.doi | 10.1016/j.electacta.2014.08.015 | - |
dc.identifier.scopusid | 2-s2.0-84907100355 | - |
dc.identifier.wosid | 000343951100038 | - |
dc.identifier.bibliographicCitation | ELECTROCHIMICA ACTA, v.144, pp.288 - 294 | - |
dc.relation.isPartOf | ELECTROCHIMICA ACTA | - |
dc.citation.title | ELECTROCHIMICA ACTA | - |
dc.citation.volume | 144 | - |
dc.citation.startPage | 288 | - |
dc.citation.endPage | 294 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.subject.keywordPlus | LITHIUM-ION BATTERIES | - |
dc.subject.keywordPlus | MESOPOROUS SPHERES | - |
dc.subject.keywordPlus | DRUG-DELIVERY | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CELLS | - |
dc.subject.keywordPlus | ANODE | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | COPRECIPITATION | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordAuthor | Yolk-shell | - |
dc.subject.keywordAuthor | Layered material | - |
dc.subject.keywordAuthor | Cathode material | - |
dc.subject.keywordAuthor | Lithium ion batteries | - |
dc.subject.keywordAuthor | Spray pyrolysis | - |
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