Three Nafion membranes of similar composition but different thicknesses were operated in a 3-cell 1kW class all vanadium mixed acid redox flow battery. The influence of current density on the charge/discharge characteristics, coulombic and energy efficiency, capacity fade, operating temperature and pressure drop in the flow circuit will be discussed and correlated to the Nafion membrane thickness. Material costs associated with the Nafion membranes, ease of handling the membranes, and performance impacts will also be discussed.
Revised: May 21, 2015 |
Published: March 26, 2015
Citation
Reed D.M., E.C. Thomsen, W. Wang, Z. Nie, B. Li, X. Wei, and B.J. Koeppel, et al. 2015.Performance of Nafion® N115, Nafion® NR-212, and Nafion® NR-211 in a 1 kW Class All Vanadium Mixed Acid Redox Flow Battery.Journal of Power Sources 285.PNNL-SA-108089.doi:10.1016/j.jpowsour.2015.03.099