DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sohn, Dongrak | ko |
dc.contributor.author | Lim, Sung-Jin | ko |
dc.contributor.author | Nam, Do-Hwan | ko |
dc.contributor.author | Hong, Kyung-Sik | ko |
dc.contributor.author | Kim, TaeHee | ko |
dc.contributor.author | Oh, Se-Kwon | ko |
dc.contributor.author | Eom, Ji-Yong | ko |
dc.contributor.author | Cho, Eun Ae | ko |
dc.contributor.author | Kwon, HyukSang | ko |
dc.date.accessioned | 2018-01-30T02:39:50Z | - |
dc.date.available | 2018-01-30T02:39:50Z | - |
dc.date.created | 2017-12-18 | - |
dc.date.created | 2017-12-18 | - |
dc.date.issued | 2018-01 | - |
dc.identifier.citation | ELECTRONIC MATERIALS LETTERS, v.14, no.1, pp.30 - 36 | - |
dc.identifier.issn | 1738-8090 | - |
dc.identifier.uri | http://hdl.handle.net/10203/238159 | - |
dc.description.abstract | A Na0.7MnO2/C composite cathode material is synthesized by simple and costeffective two-step heat treatment for an improvement in the rate capability of Na0.7MnO2. The first heat treatment is to synthesize Na0.7MnO2, and the second one is a low temperature annealing at 350 A degrees C for 1 h in air, which is necessary to suppress an interfacial reaction between the Na0.7MnO2 and C in the synthesis process of Na0.7MnO2/C composite. Structural analyses by XRD and XPS reveal that the Na0.7MnO2/C shows the same structural properties as that of the pristine Na0.7MnO2, and hence they exhibit the same initial discharge capacity of 175 mAh g(-1) at 20 mA g(-1). At a current density of 400 mA g(-1), the discharge capacity of Na0.7MnO2 reduces to 50 mAh g(-1) (28% of the initial discharge capacity), whereas that of Na0.7MnO2/C reduces to 108 mAh g(-1) (61% of the initial discharge capacity). The enhanced rate capability of the Na0.7MnO2/C is attributed to the conductive carbon layer formed on the surface of Na0.7MnO2 particles, enabling the facile transport of electrons from the current collector to the surface of the Na0.7MnO2 particles. | - |
dc.language | English | - |
dc.publisher | KOREAN INST METALS MATERIALS | - |
dc.subject | MANGANESE OXIDES | - |
dc.subject | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject | ENERGY-STORAGE | - |
dc.subject | P2-TYPE | - |
dc.subject | ELECTRODES | - |
dc.subject | MORPHOLOGY | - |
dc.subject | BEHAVIOR | - |
dc.title | Fabrication of Na0.7MnO2/C composite cathode material by simple heat treatment for high-power na-ion batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000417072400005 | - |
dc.identifier.scopusid | 2-s2.0-85037375415 | - |
dc.type.rims | ART | - |
dc.citation.volume | 14 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 30 | - |
dc.citation.endingpage | 36 | - |
dc.citation.publicationname | ELECTRONIC MATERIALS LETTERS | - |
dc.identifier.doi | 10.1007/s13391-017-7085-6 | - |
dc.contributor.localauthor | Cho, Eun Ae | - |
dc.contributor.localauthor | Kwon, HyukSang | - |
dc.contributor.nonIdAuthor | Eom, Ji-Yong | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Na-ion batteries | - |
dc.subject.keywordAuthor | cathode | - |
dc.subject.keywordAuthor | Na0.7MnO2 | - |
dc.subject.keywordAuthor | carbon composite | - |
dc.subject.keywordAuthor | rate capability | - |
dc.subject.keywordPlus | MANGANESE OXIDES | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | P2-TYPE | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | BEHAVIOR | - |
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