文章基本信息

标题：A complex four-point method for the evaluation of ohmic and faradaic losses within a redox flow battery single-cell
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作者：P. Mazur ; J. Mrlik ; J. Charvat 等
期刊名称：MethodsX
印刷版ISSN：2215-0161
电子版ISSN：2215-0161
出版年度：2019
卷号：6
页码：534-539
DOI：10.1016/j.mex.2019.03.007
语种：English
出版社：Elsevier
摘要：Graphical abstractDisplay OmittedAbstractWe 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 andin-situdurability 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.
关键词：Redox flow battery;Electrochemical impedance spectroscopy;Load curve