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Understanding origin of voltage hysteresis in conversion reaction for na rechargeable batteries: The case of cobalt oxides
DC Field | Value | Language |
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dc.contributor.author | Kim, Haegyeom | - |
dc.contributor.author | Kim, Hyunchul | - |
dc.contributor.author | Kim, Hyungsub | - |
dc.contributor.author | Kim, Jinsoo | - |
dc.contributor.author | Yoon, Gabin | - |
dc.contributor.author | Lim, Kyungmi | - |
dc.contributor.author | Yoon, Won-Sub | - |
dc.contributor.author | Kang, Kisuk | - |
dc.date.accessioned | 2020-04-25T07:58:44Z | - |
dc.date.available | 2020-04-25T07:58:44Z | - |
dc.date.created | 2018-09-05 | - |
dc.date.created | 2018-09-05 | - |
dc.date.issued | 2016-07 | - |
dc.identifier.citation | Advanced Functional Materials, Vol.26 No.28, pp.5042-5050 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.other | 50495 | - |
dc.identifier.uri | https://hdl.handle.net/10371/165046 | - |
dc.description.abstract | Conversion reaction electrodes offer a high specific capacity in rechargeable batteries by utilizing wider valence states of transition metals than conventional intercalation-based electrodes and have thus been intensively studied in recent years as potential electrode materials for high-energy-density rechargeable batteries. However, several issues related to conversion reactions remain poorly understood, including the polarization or hysteresis during charge/discharge processes. Herein, Co3O4 in Na cells is taken as an example to understand the aforementioned properties. The large hysteresis in charge/discharge profiles is revealed to be due to different electrochemical reaction paths associated with respective charge and discharge processes, which is attributed to the mobility gap among inter-diffusing species in a metal oxide compound during de/sodiation. Furthermore, a Co3O4-graphene nanoplatelet hybrid material is demonstrated to be a promising anode for Na rechargeable batteries, delivering a capacity of 756 mAh g(-1) with a good reversibility and an energy density of 96 Wh kg(-1) (based on the total electrode weight) when combined with a recently reported Na4Fe3(PO4)(2)(P2O7) cathode. | - |
dc.language | 영어 | - |
dc.publisher | John Wiley & Sons Ltd. | - |
dc.title | Understanding origin of voltage hysteresis in conversion reaction for na rechargeable batteries: The case of cobalt oxides | - |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 강기석 | - |
dc.identifier.doi | 10.1002/adfm.201601357 | - |
dc.citation.journaltitle | Advanced Functional Materials | - |
dc.identifier.wosid | 000380890200005 | - |
dc.identifier.scopusid | 2-s2.0-84970954339 | - |
dc.citation.endpage | 5050 | - |
dc.citation.number | 28 | - |
dc.citation.startpage | 5042 | - |
dc.citation.volume | 26 | - |
dc.identifier.sci | 000380890200005 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Kang, Kisuk | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | SODIUM-ION BATTERIES | - |
dc.subject.keywordPlus | PERFORMANCE ANODE MATERIAL | - |
dc.subject.keywordPlus | LITHIUM-ION | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | ELECTRODE MATERIALS | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | REVERSIBLE CAPACITY | - |
dc.subject.keywordPlus | STORAGE BEHAVIOR | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | AIR BATTERIES | - |
dc.subject.keywordAuthor | anode material | - |
dc.subject.keywordAuthor | Co3O4 | - |
dc.subject.keywordAuthor | conversion reaction | - |
dc.subject.keywordAuthor | rechargeable battery | - |
dc.subject.keywordAuthor | sodium | - |
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