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  2. Na+ Pre-Intercalated Bilayered V2O5 Cathode Materials for Na-Ion Batteries
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    Datenpaket: Na+ Pre-Intercalated Bilayered V2O5 Cathode Materials for Na-Ion Batteries

    Alternativer Identifier:
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    Verwandter Identifier:
    (Is Identical To) https://publikationen.bibliothek.kit.edu/1000173140 - URL
    Ersteller/in:
    Fu, Qiang [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Schwarz, Björn https://orcid.org/0000-0002-9461-1448 [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Sarapulova, Angelina [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Luo, Xianlin https://orcid.org/0000-0001-5386-8231 [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Hansen, Julian [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Meng, Zhen [Helmholtz-Institut Ulm (HIU), Karlsruher Institut für Technologie (KIT)]

    Baran, Volodymyr [Deutsches Elektronen-Synchrotron (DESY)]

    Missyul, Alexander [Missyul, Alexander]

    Welter, Edmund [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Hua, Weibo [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Knapp, Michael https://orcid.org/0000-0003-0091-8463 [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Ehrenberg, Helmut [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]

    Dsoke, Sonia https://orcid.org/0000-0001-9295-2110 [Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)]
    Beitragende:
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    Titel:
    Na+ Pre-Intercalated Bilayered V2O5 Cathode Materials for Na-Ion Batteries
    Weitere Titel:
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    Beschreibung:
    (Abstract) Na+ pre-intercalated bilayered vanadium oxide (NVOnH) with a large interlayer spacing of ∼11.1 Å is synthesized via hydrothermal method. As proven by mass spectrometry and magnetization measurements, NVOnH is “oxygen-rich”. NVOnH undergoes a notable structure evolution and thermal instability during heating due to crystal water and O2 release and decomposition. NVOnH and dehydrated NVOnH (NVO) deliver a capacity of over 250 mAh g−1 and 220 mAh g−1, respectively, despite their fast capacity decay in the first 20 cycles and low capacity retention after 100 cycles. Moreover, the reaction mechanism and reversibility of NVOnH and NVO during Na+ ions (de)insertion are investigated via in operando techniques. NVOnH experiences a 2-phase and solid solution reaction during discharge and charge processes while NVO undergoes a different phase evolution (NVO starting with charging: 2-phase reaction for the first charging and only solid solution for the following cycle; NVO starting with discharging: only solid solution reaction). In operando X‑ray absorption spectroscopy demonstrates the variation of the oxidation state and the local structural environment of V ion during Na+ (de)insertion.
    (Technical Remarks) The data include electrochemistry data, XPS, TGA, XRD, magnetic data, in situ HT XRD, in situ XRD and XAS data, which were plotted using Origin software.
    Schlagworte:
    Na-ion batteries
    vanadium oxide cathode
    in situ high-temperature synchrotron diffraction
    in operando synchrotron diffraction
    in operando X‑ray absorption spectroscopy.
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    Sprache:
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    Herausgeber/in:
    Karlsruhe Institute of Technology
    Erstellungsjahr:
    Fachgebiet:
    Engineering
    Objekttyp:
    Dataset
    Datenquelle:
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    Verwendete Software:
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    Datenverarbeitung:
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    Erscheinungsjahr:
    Rechteinhaber/in:
    Fu, Qiang

    Sarapulova, Angelina

    Hansen, Julian

    Meng, Zhen

    Baran, Volodymyr

    Missyul, Alexander

    Welter, Edmund

    Hua, Weibo

    Ehrenberg, Helmut
    Förderung:
    -
    Status:
    Publiziert
    Eingestellt von:
    kitopen
    Erstellt am:
    Embargo-Zeitraum:
    2024-10-31