Figure 10. Absorbance of the oxidation product of V4+ at different wavelengths as a function of the applied voltage. Insert: Absorption spectra derived from the absorbance vs voltage curves

From

Vanadium Redox Flow Batteries with Different Electrodes and Membranes

A. Habekost

World Journal of Chemical Education. 2018, 6(1), 8-13 doi:10.12691/wjce-6-1-2