TY - GEN
T1 - Modeling of dynamic behavior of vanadium redox batteries (VRB) with contamination properties of proton exchange membrane
AU - Averbukh, M.
AU - Faiman, D.
AU - Batat, K.
PY - 2012
Y1 - 2012
N2 - Vanadium redox flow batteries (VRB) represent a promising technology for a storage medium suitable for matching the intermittent output of renewable energy systems (RES) to the changing requirements of an electricity grid [1]. In a typical VRB, the proton exchange membrane (PEM) separates two compartments (positive and negative), each filled with vanadium sulfate in dilute sulfuric acid [2]. The function of the PEM is to allow proton flow, and to prevent the flow of other cations - specifically vanadium ions, which are present in the electrolyte solution on both sides of the PEM. In practice, however, existing PEMs have only limited cation selectivity, and this property influences the dynamic behavior of the battery and its energy efficiency. The present paper models VRB dynamic behavior including the presence of contaminants in the electrolytes. Coupled differential equations for the various ion flows were solved numerically using the Simulink subroutine of MATLAB and compared with a series of measurements performed on an actual VRB.
AB - Vanadium redox flow batteries (VRB) represent a promising technology for a storage medium suitable for matching the intermittent output of renewable energy systems (RES) to the changing requirements of an electricity grid [1]. In a typical VRB, the proton exchange membrane (PEM) separates two compartments (positive and negative), each filled with vanadium sulfate in dilute sulfuric acid [2]. The function of the PEM is to allow proton flow, and to prevent the flow of other cations - specifically vanadium ions, which are present in the electrolyte solution on both sides of the PEM. In practice, however, existing PEMs have only limited cation selectivity, and this property influences the dynamic behavior of the battery and its energy efficiency. The present paper models VRB dynamic behavior including the presence of contaminants in the electrolytes. Coupled differential equations for the various ion flows were solved numerically using the Simulink subroutine of MATLAB and compared with a series of measurements performed on an actual VRB.
KW - Vanadium redox batteries
KW - contamination properties of proton exchange membrane
KW - dynamic behavior
KW - numerical solution by Simulink(MATLAB)
KW - system of differential equations
UR - http://www.scopus.com/inward/record.url?scp=84871961019&partnerID=8YFLogxK
U2 - 10.1109/EEEI.2012.6377034
DO - 10.1109/EEEI.2012.6377034
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AN - SCOPUS:84871961019
SN - 9781467346801
T3 - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
BT - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
T2 - 2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
Y2 - 14 November 2012 through 17 November 2012
ER -