1. Sie sind hier:
  2. Synergy of cations in high entropy oxide lithium ion battery anode
...

    Datenpaket: Synergy of cations in high entropy oxide lithium ion battery anode

    Alternativer Identifier:
    (KITopen-DOI) 10.5445/IR/1000154295
    Verwandter Identifier:
    -
    Ersteller/in:
    Wang, Kai [Institut für Nanotechnologie, Helmholtz-Institut Ulm, Karlsruhe Nano Micro Facility, Center for Electrochemical Energy Storage Ulm & Karlsruhe]

    Hua, Weibo [Energiespeichersysteme]

    Huang, Xiaohui [Institut für Nanotechnologie]

    Stenzel, David [Institut für Nanotechnologie]

    Wang, Junbo [Energiespeichersysteme]

    Ding, Ziming [Institut für Nanotechnologie]

    Cui, Yanyan [Institut für Nanotechnologie]

    Wang, Qingsong [Institut für Nanotechnologie]

    Ehrenberg, Helmut [Energiespeichersysteme]

    Breitung, Ben [Institut für Nanotechnologie]

    Kübel, Christian https://orcid.org/0000-0001-5701-4006 [Institut für Nanotechnologie]

    Mu, Xiaoke [Institut für Nanotechnologie]
    Beitragende:
    -
    Titel:
    Synergy of cations in high entropy oxide lithium ion battery anode
    Weitere Titel:
    -
    Beschreibung:
    (Abstract) High entropy oxides (HEOs) with chemically disordered multi-cation structure attract intensive interest as negative electrode materials for battery applications. The outstanding electrochemical performance is attributed to the high-entropy stabilization and so-called ‘cocktail effect’. However, the configurational entropy is insufficient to drive the structural reversibility of the room-temperature thermodynamically metastable HEO during conversion-type battery reaction, and the ‘cocktail effect’ has not been explained thus far. This work unveils the multi-cations synergy of the HEO Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O at atomic and nanoscale during electrochemical reaction and explains the ‘cocktail effect’. The more electronegative elements form an electrochemically inert 3-dimensional metallic nano-network enabling electron transport. The electrochemical inactive cation stabilizes an oxide nanophase, which is semi-coherent with the metallic phase and accommodates Li+ ions. This self-assembled nanostructure enables stable cycling of micron-sized particles, which bypasses the need for nanoscale pre-modification required for conventional metal oxides in battery applications. This demonstrates elemental diversity is the key for optimizing multi-cation electrode materials.
    (Technical Remarks) Information about the data format and software suitable to open the data is available in the subdirectory 'description'
    Schlagworte:
    high-entropy oxide
    battery materials
    cation synergy
    size effect
    Zugehörige Informationen:
    -
    Sprache:
    -
    Herausgeber/in:
    Karlsruhe Institute of Technology
    Erstellungsjahr:
    Fachgebiet:
    Engineering
    Objekttyp:
    Dataset
    Datenquelle:
    -
    Verwendete Software:
    -
    Datenverarbeitung:
    -
    Erscheinungsjahr:
    Rechteinhaber/in:
    Wang, Kai

    Hua, Weibo

    Huang, Xiaohui

    Stenzel, David

    Wang, Junbo

    Ding, Ziming

    Cui, Yanyan

    Wang, Qingsong

    Ehrenberg, Helmut

    Breitung, Ben

    Mu, Xiaoke
    Förderung:
    -
    Name Speichervolumen Metadaten Upload Aktion
    Status:
    Publiziert
    Eingestellt von:
    kitopen
    Erstellt am:
    Archivierungsdatum:
    2023-06-21
    Archivgröße:
    58,3 GB
    Archiversteller:
    kitopen
    Archiv-Prüfsumme:
    3fed2efc38963d2bd80c4d39503f4e93 (MD5)
    Embargo-Zeitraum:
    -