Transport property measurement of binary electrolytes using a four-electrode electrochemical cell

Mohammad Farkhondeh , Mark Pritzker , Michael Fowler , Charles Delacourt (1, 2)

1 RS2E - Réseau sur le stockage électrochimique de l'énergie
2 LRCS - Laboratoire réactivité et chimie des solides - UMR CNRS 7314

An electrochemical method that is more accurate and less complicated than state-of-the-art techniques is presented to estimate transport properties of concentrated binary electrolytes. The method involves the application of a single galvanostatic polarization pulse to working and counter electrodes in a four-electrode symmetric cell and measurement of both the closed-circuit and open-circuit potential responses across two electrode sensors. A mathematical model is then fitted to the experimental data to obtain the transport properties. This method provides a fast and reliable means to determine transport properties for a wide variety of electrolytes such as in high power battery applications. (C) 2016 Elsevier B.V. All rights reserved.

Domaines: Matériaux

Mohammad Farkhondeh, Mark Pritzker, Michael Fowler, Charles Delacourt. Transport property measurement of binary electrolytes using a four-electrode electrochemical cell. Electrochemistry Communications, 2016, 67, pp.11-15. ⟨10.1016/j.elecom.2016.02.025⟩. ⟨hal-03612317⟩