Alternativer Identifier:
-
Verwandter Identifier:
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:
-
Titel:
Na+ Pre-Intercalated Bilayered V2O5 Cathode Materials for Na-Ion Batteries
Weitere Titel:
-
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.
Zugehörige Informationen:
-
Sprache:
-
Erstellungsjahr:
Fachgebiet:
Engineering
Objekttyp:
Dataset
Datenquelle:
-
Verwendete Software:
-
Datenverarbeitung:
-
Erscheinungsjahr:
Rechteinhaber/in:
Fu, Qiang

Sarapulova, Angelina

Hansen, Julian

Meng, Zhen

Baran, Volodymyr

Missyul, Alexander

Welter, Edmund

Hua, Weibo

Ehrenberg, Helmut
Förderung:
-
Name Speichervolumen Metadaten Upload Aktion
Status:
Publiziert
Eingestellt von:
kitopen
Erstellt am:
Archivierungsdatum:
2024-08-09
Archivgröße:
86,6 MB
Archiversteller:
kitopen
Archiv-Prüfsumme:
37c5b016edab0df48faa64403a1c6fc4 (MD5)
Embargo-Zeitraum:
2024-10-31