High ionic conductivity lithium garnet oxides of Li 7-xLa 3Zr 2-xTa xO 12 compositions

Yuxing Wang, Wei Lai

    Research output: Research - peer-reviewArticle

    • 50 Citations

    Abstract

    Lithium garnet oxides of the composition series Li 7-xLa 3Zr 2-xTa xO 12 (x 0-2) were synthesized by the solid state reaction and characterized by the powder X-ray diffraction and the impedance spectroscopy. Single cubic phases were obtained between x 0.2 and 2, while the end-member Li 7La 3Zr 2O 12 exhibited a tetragonal phase. The lattice parameters of the cubic series followed the Vegards law. The maximum bulk (9.6 10 -4 Scm) and total (6.9 10 -4 Scm) conductivities were achieved at x 0.3 and x 0.2, respectively at room temperature. Electrochemical tests with a hybrid solid|liquid electrolyte configuration were performed to evaluate the electrochemical performance of the solid electrolytes.

    LanguageEnglish (US)
    JournalElectrochemical and Solid-State Letters
    Volume15
    Issue number5
    DOIs
    StatePublished - 2012

    Profile

    solid electrolytes
    garnets
    ion currents
    lattice parameters
    lithium
    electrolytes
    impedance
    solid state
    conductivity
    oxides
    room temperature
    liquids
    configurations
    diffraction
    spectroscopy
    x rays
    Solid electrolytes
    Garnets
    Ionic conductivity
    Solid state reactions

    ASJC Scopus subject areas

    • Electrochemistry
    • Electrical and Electronic Engineering
    • Materials Science(all)
    • Chemical Engineering(all)
    • Physical and Theoretical Chemistry

    Cite this

    High ionic conductivity lithium garnet oxides of Li 7-xLa 3Zr 2-xTa xO 12 compositions. / Wang, Yuxing; Lai, Wei.

    In: Electrochemical and Solid-State Letters, Vol. 15, No. 5, 2012.

    Research output: Research - peer-reviewArticle

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    abstract = "Lithium garnet oxides of the composition series Li 7-xLa 3Zr 2-xTa xO 12 (x 0-2) were synthesized by the solid state reaction and characterized by the powder X-ray diffraction and the impedance spectroscopy. Single cubic phases were obtained between x 0.2 and 2, while the end-member Li 7La 3Zr 2O 12 exhibited a tetragonal phase. The lattice parameters of the cubic series followed the Vegards law. The maximum bulk (9.6 10 -4 Scm) and total (6.9 10 -4 Scm) conductivities were achieved at x 0.3 and x 0.2, respectively at room temperature. Electrochemical tests with a hybrid solid|liquid electrolyte configuration were performed to evaluate the electrochemical performance of the solid electrolytes.",
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