Vanadium redox flow battery for photovoltaic power generating system

摘要

According to the present invention, there is provided a battery comprising: a battery cell in which a plurality of unit cells are arranged in a stacked structure to enable charging and discharging of an electrolyte through oxidation and reduction reactions according to the flow of the electrolyte; First and second end plates formed at both ends of the battery cell to protect the battery cell from the outside; The first and second unit cells are electrically connected to the anode and cathode cells of the unit cells from the first unit cell to the nth unit cell among the plurality of unit cells of the battery cell in a state of being positioned on the first and second end plates, A positive electrode plate and a negative electrode plate for collecting charges of all the unit cells discharged in accordance with the flow and causing the converter to perform DC / AC conversion so as to be supplied to the rod; A blanking period for dividing the battery cell into a section from the first unit cell to the d-th unit cell positioned in an arbitrary order and a section from the (d + 1) th unit cell to the n-th unit cell; The first to the d-th unit cells are electrically connected to the cathode cells of a part of the unit cells in a state where they are located in the common branch, A negative electrode of the negative electrode plate is connected to the positive electrode of the negative electrode plate and the positive electrode of the negative electrode plate, A cathode electrolytic tank and a cathode electrolytic tank in which electrolytic solutions having different oxidation states are stored; And a first circulation pump and a second circulation pump respectively disposed between the positive electrode electrolyte tank and the battery cell and between the negative electrode electrolyte tank and the battery cell so that the electrolyte is circulated to the battery cell and the electrolyte tank, A vanadium redox flow cell for a power generation system is provided.