Model for the impedance analysis in a three electrode solid state electrochemical cell

✍ Scribed by G.E. Lagos; N. Bonanos; B.C.H. Steele

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 327 KB
• Volume: 28
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(83)85219-0

✦ Synopsis

A T-network model for the determination of the electrode impedances in a three electrode solid state electrochemical cell is postulated and discussed. The model is applied to a Li solid state battery where the electrolyte is the polymer (PEO), LiCF3 SO, and the Positive electrode is the insertion eltxtrode V,O1, tX. The Li metal reference electrode is found to have an impedance considerably greater than that of the working (v60 , 3 + ,) or the counter electrode (Li). The significance of these impedances is discussed in relation to the geometry and construction of solid electrolyte cells, and to their suitability for potentiostatic measurements.