DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, E. | - |
dc.contributor.author | Lim, W.-G. | - |
dc.contributor.author | Jo, C. | - |
dc.contributor.author | Chun, J. | - |
dc.contributor.author | Kim, M.-H. | - |
dc.contributor.author | Roh, K.C. | - |
dc.contributor.author | Lee, J. | - |
dc.date.accessioned | 2018-07-16T09:43:40Z | - |
dc.date.available | 2018-07-16T09:43:40Z | - |
dc.date.created | 2017-12-21 | - |
dc.date.issued | 2017-10 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/91997 | - |
dc.description.abstract | A Li-ion hybrid supercapacitor (Li-HSC) delivering high energy within seconds (excellent rate performance) with stable cycle life is one of the most highly attractive energy storage devices. However, the limited anode materials for Li-HSC systems lead to stagnation and restrict the development of high-performance Li-HSCs. To tackle this problem, a facile synthetic route to Li3VO4@carbon core-shell nanoparticles (Li3VO4@C NPs), a promising high-power anode for Li-HSCs, is reported. The synthesized Li3VO4@C NPs show a high specific capacity of ��400 mA h g-1 at the current density of 0.02 A g-1 in the potential range from 0.2 to 3.0 V (vs. Li/Li+), with rapid charge/discharge characteristics (��110 mA h g-1 at 10 A g-1). By various electrochemical analyses, it was demonstrated that the excellent electrochemical properties of Li3VO4@C NPs stem from their improved pseudocapacitive behavior and their low internal resistance, which are mainly due to the synergistic effects of (i) a well-designed electrode morphology achieved by nano-engineering and (ii) the structural merits of a core-shell architecture. In addition, the Li-HSC using the Li3VO4@C NP anode and activated carbon (AC) cathode provides ��190 W h kg-1 energy and ��18 500 W kg-1 power density, with long-term cycle stability in the potential range from 0.0 to 4.3 V. ? 2017 The Royal Society of Chemistry. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.relation.isPartOf | Journal of Materials Chemistry A | - |
dc.subject | Activated carbon | - |
dc.subject | Anodes | - |
dc.subject | Electrodes | - |
dc.subject | Hybrid materials | - |
dc.subject | Nanoparticles | - |
dc.subject | Shells (structures) | - |
dc.subject | Supercapacitor | - |
dc.subject | Core-shell nanoparticles | - |
dc.subject | Electrochemical analysis | - |
dc.subject | Electrode morphology | - |
dc.subject | High specific capacity | - |
dc.subject | Hybrid supercapacitors | - |
dc.subject | Internal resistance | - |
dc.subject | Pseudocapacitive behavior | - |
dc.subject | Synergistic effect | - |
dc.subject | Lithium | - |
dc.title | Rational design of Li3VO4@carbon core-shell nanoparticles as Li-ion hybrid supercapacitor anode materials | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/c7ta05863b | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Journal of Materials Chemistry A, v.5, no.39, pp.20969 - 20977 | - |
dc.identifier.wosid | 000412800300050 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 20977 | - |
dc.citation.number | 39 | - |
dc.citation.startPage | 20969 | - |
dc.citation.title | Journal of Materials Chemistry A | - |
dc.citation.volume | 5 | - |
dc.contributor.affiliatedAuthor | Lee, J. | - |
dc.identifier.scopusid | 2-s2.0-85031103921 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 5 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ELECTROCHEMICAL ENERGY-STORAGE | - |
dc.subject.keywordPlus | GRAPHENE NANOSHEETS | - |
dc.subject.keywordPlus | ACTIVATED CARBON | - |
dc.subject.keywordPlus | LITHIUM STORAGE | - |
dc.subject.keywordPlus | INSERTION ANODE | - |
dc.subject.keywordPlus | HOLLOW SPHERES | - |
dc.subject.keywordPlus | BATTERY ANODES | - |
dc.subject.keywordPlus | POWER-DENSITY | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CAPACITORS | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
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