1
PhD., Department of Mechanical Engineering, Imam Hossein University, Tehran, Iran
2
Department of Mechanical Engineering, Shahid Beheshti University
Abstract
Flow electrochemical batteries such as Al-Ago Batteries are high-capacity batteries that the electrolyte flows between the anode and cathode plates and the battery cell is in a close system. Due to the heaviness of such batteries, efforts are done to reduce their volume and weight so the distance between the anode and cathode is minimized. On the other hand, being to close to the anode and cathode increase the risk of short-circuit the battery. So, separators between the anode and cathode were used to prevent them from touch each other. Although preventing short-circuit, the separators are located in the direction of the electrolyte flow, preventing the desired flow between the anode and cathode plates. The flow wake due to their obstruction on the flow path affects the active area of the reaction and thereby reduces battery efficiency. On the other hand, the cross-section shape of these separators has a great influence on the hydrodynamics of the electrolyte, wake length and the active area of the reaction. In the present study, the electrolyte is considered as single-phase, steady and the effect of the number and arrangement of the separators are studied for four shapes of circle, square, Lozenge and triangle cross-sections on the electrolyte flow and the active area of the reaction
Arenas, L.F., de León, P., Frank, C., and Walsh, C. “Redox Flow Batteries for Energy Storage: Their Promise, Achievements and Challenges, Current Opinion in Electrochemistry”, Vol. 16, pp. 117–126, 2019.
Choi, C., Kim, S., Kim, R., Choi, Y., Kim, S., Jung, H., Hoon Yang, J., and Kim, H. “A Review of Vanadium Electrolytes for Vanadium Redox Flow Batteries”, Renewable and Sustainable Energy Reviews, 69, pp. 263–274, 2017.
Khazaeli, A., Vatani, A., Tahouni, N., and Panjeshahi, M. H., “Numerical Investigation and Thermodynamic Analysis of the Effect of Electrolyte Flow Rate on Performance of All Vanadium Redox Flow Batteries”, Journal of Power Sources, Vol. 293, pp. 599-612, 2015.
Wang,T., Fu, J., Zheng, M., and Yu, Z. “Dynamic Control Strategy for the Electrolyte Flow Rate of Vanadium Redox Flow Batteries”, Applied Energy, Vol. 227, pp. 613-623, 2017.
Yang, H.S., Park, J.H., Ra, H.W., Jin, C.S., and Yang, J.H. “Critical Rate of Electrolyte Circulation for Preventing Zinc Dendrite Formation in a Zincebromine Redox Flow Battery”, Journal of Power Sources, Vol. 325, pp. 446-452, 2016.
Maurya, S., Nguyen, P.T., Seung Kim, Y., and Kang, Q. “Effect of Flow Field Geometry on Operating Current Density, Capacity and Performance of Vanadium Redox Flow Battery”, Journal of Power Sources, Vol. 404, pp. 20–27, 2018.
Zhang, B.W., Lei, Y., Bai, B.F., Xu, A., and Zhao, T.S. “A Two-Dimensional Mathematical Model for Vanadium Redox Flow Battery Stacks Incorporating Nonuniform Electrolyte Distribution in the Flow Frame”, Applied Thermal Engineering, 2019.
Zhang, B.W., Lei, Y., Bai, B.F., and Zhao, T.S. “A Two-Dimensional Model for the Design of Flow Fields in Vanadium Redox Flow Batteries”, International Journal of Heat and Mass Transfer, Vol. 135 pp. 460–469, 2019.
Gundlapalli, R. and Jayanti, S. “Effect of Channel Dimensions of Serpentine Flow Fields on the Performance of a Vanadium Redox Flow Battery, Journal of Energy Storage, Vol. 23, pp. 148–158, 2019.
Knudsen, E., Albertus, P., Cho, K.T., Weber, A.Z., and Kojic, A. “Flow Simulation and Analysis of High-Power Flow Batteries”, Journal of Power Sources, Vol. 299, pp. 617-628, 2015.
Messaggi, M., Canzi, P., Mereu, R., Baricci, A., Inzoli, F., Casalegno, A., and Zago, M. “Analysis of Flow Field Design on Vanadium Redox Flow Battery Performance: Development of 3D Computational Fluid Dynamic Model and Experimental Validation”, Applied Energy, Vol. 228, pp. 1057–1070, 2018.
Oh, K., Kang, T.J., Park, S., Tucker, M.C., Weber, A.Z., and Ju, H. “Effect of Flow-Field Structure on Discharging and Charging Behavior of Hydrogen/Bromine Redox Flow Batteries”, Electrochimica Acta, Vol. 230, pp. 160-173, 2017.
Ishitobi, H., Saito, J., Sugawara, S., Oba, K., and Nakagawa, N., “Visualized Cell Characteristics by a Two-Dimensional Model of Vanadium Redox Flow Battery with Interdigitated Channel and Thin Active Electrode”, Electrochimica Acta, Vol. 313, pp. 513-522, 2019.
Kumar, S. and Jayanti, S. “Effect of Electrode Intrusion on Pressure Drop and Electrochemical Performance of an All-Vanadium Redox Flow Battery”, Journal of Power Sources, Vol. 360, pp. 548-558, 2017.
Escudero-Gonzalez, J. and Amparo Lopez-Jimenez, P. “Methodology to Optimize Fluid-Dynamic Design in a Redox Cell”, Journal of Power Sources, Vol. 251, pp. 243-253, 2014.
Hnedkovsky, L., Bochmann, S., May, P.M., and Hefter, G., “Molar Volumes and Heat Capacities of Aqueous Solutions of Potassium Hydroxide and for Water Ionization up to 573 K at 10 MPa”, Journal of Chemical Engineering Data, Vol. 62 , pp. 2959−2972, 2016.
Jiang, H. and Cheng, L. “Strouhal–Reynolds Number Relationship for Flow Past a Circular Cylinder”, Journal of Fluid Mech., Vol. 832, pp. 170–188, 2017.
Nahidi, S., & Behroozizade, E. (2022). The Effect Of Anode And Cathode Separators In Al-Ago Battery On The Hydrodynamic Of Electrolyte. Fluid Mechanics & Aerodynamics, 10(2), 125-140.
MLA
Saeed Nahidi; Ehsan Behroozizade. "The Effect Of Anode And Cathode Separators In Al-Ago Battery On The Hydrodynamic Of Electrolyte". Fluid Mechanics & Aerodynamics, 10, 2, 2022, 125-140.
HARVARD
Nahidi, S., Behroozizade, E. (2022). 'The Effect Of Anode And Cathode Separators In Al-Ago Battery On The Hydrodynamic Of Electrolyte', Fluid Mechanics & Aerodynamics, 10(2), pp. 125-140.
VANCOUVER
Nahidi, S., Behroozizade, E. The Effect Of Anode And Cathode Separators In Al-Ago Battery On The Hydrodynamic Of Electrolyte. Fluid Mechanics & Aerodynamics, 2022; 10(2): 125-140.
)
