Related Experiment Video
Updated: Jan 26, 2026

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
Published on: February 13, 2017
A complex four-point method for the evaluation of ohmic and faradaic losses within a redox flow battery single-cell
P Mazur1, J Mrlik2, J Charvat2
1University of West Bohemia, Research Centre - New Technologies, Univerzitni 8, 306 14 Pilsen, Czech Republic.
Abstract:
We propose a complex 4-point method for characterization of flow batteries. The distribution of ohmic and faradaic losses within a single-cell is evaluated from electrochemical impedance spectra and load curves of positive and negative half-cells measured with platinum wire pseudo-reference electrodes positioned in respective electrode compartment. The developed method can be used e.g., for the component screening and in-situ durability studies on single-cell scale. The method was validated on a vanadium redox flow battery single-cell; however, it can be analogically employed for various chemistries of flow battery. •Complex 4-point method for characterization of flow battery single-cell was developed.•Method is based on electrochemical impedance spectra and load curve measurements.•Direct evaluation of ohmic and faradaic losses distribution within battery single-cell by the method.
More Related Videos
Related Concept Videos
Batteries and Fuel Cells
Balancing Redox Equations
Non-ohmic Devices
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
Redox Reactions
Redox Reactions
Line Loss
Line loss impacts power delivery efficiency in a balanced three-phase circuit. The symmetry in such a circuit simplifies the...

