For charging and discharging, these are pumped through reaction cells, so-called stacks, where H+ ions pass through a selective membrane from one side to the other, while, in the external circuit, electrons travel in the same direction, inducing a current. . Flow batteries are electrochemical cells, in which the reacting substances are stored in electrolyte solutions external to the battery cell Electrolytes are pumped through the cells Electrolytes flow across the electrodes Reactions occur atthe electrodes Electrodes do not undergo a physical. . The anode is the negative electrode of a discharging battery. The electrolyte has high ionic conductivity but low electrical conductivity. reducer or fuel) and charged posolyte (a. oxidant) are added to the system) or like a rechargeable battery (where an electric power source drives regeneration of the reducer and oxidant). The fundamental difference. . With the rapid increase in production of intermittent energy sources such as wind and solar, there is an increasing need for large-scale electrical energy storage systems to more efficiently match supply and demand for these renewable sources. This current supplies energy to various devices, such. .
