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Kemijski inštitut, Ljubljana (KILJ)
  • Impedance spectroscopy of mixed conductors with semi-blocking boundaries
    Jamnik, Janko
    Using generalised circuits consisting of three basic elements (electrochemical resistors, electrical and chemical capacitors), the small signal response of mixed conductors is considered. Simple ... approximate circuits for polycrystals with grain boundaries that act as obstacles for ions, electrons or both are derived. It is shown that Warburg-type impedance can be induced also by grain boundaries, not only by electrodes. As shown exemplarily, such models are appropriate also for analysis of impedance spectra obtained in studies of mixed conductive cathodes in Li-batteries.
    Vir: Solid state ionics. - ISSN 0167-2738 (Vol. 157, no. 1/4, 2003, str. 19-28)
    Vrsta gradiva - članek, sestavni del
    Leto - 2003
    Jezik - angleški
    COBISS.SI-ID - 2860058

vir: Solid state ionics. - ISSN 0167-2738 (Vol. 157, no. 1/4, 2003, str. 19-28)

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