Impedance analysis of solid electrolytes by a voltage-pulsing technique

• Published in: Solid state ionics 1992-12, Vol.58 (3), p.293-301
• Main Authors: Komorowski, P.G., Alcock, C.B.
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electrical and thermal conduction in crystalline metals and alloys; Electronic conduction in metals and alloys; Electronic transport in condensed matter; Exact sciences and technology; Physics
• ISSN: 0167-2738; 1872-7689
• DOI: 10.1016/0167-2738(92)90131-8

A novel voltage-pulsing technique was developed for measuring the impedance spectra of solid electrolytes. The device was tested on linear resistance/capacitance circuits and a non-linear diode/capacitance circuit. In addition, measurements of the impedance spectrum of bonded hydronium NASICON (Hyceram TM) at frequencies from 800 Hz up to approximately 1.6 MHz were made. The results were found to be consistent with those obtained using the Solartron and Hewlett Packard spectrum analyzers. The pulse train was designed to allow a semi-quantitative measurements of the linearity of the material's voltage response to be made. The bonded hydronium NASICON demonstrated satisfactory linearity in its voltage response, proving the admissibility of large voltage amplitude (∼ 500 mV) measurements when studying some solid electrolytes.