REDOX FLOW BATTERY COMPRISING A MEMBRANE FREE CELL STACK

A redox flow battery with a membrane-free stack includes a pair of outer frames, a pair of bipolar plates positioned between the pair of outer frames, a pair of electrode layers positioned between the pair of bipolar plates, and a separator channel positioned between the pair of electrode layers, wherein during charging, a positive electrode active material and a negative electrode active material are deposited in a solid state on surfaces of the positive electrode and the negative electrode, respectively, and the separator channel allows the electrolyte to pass therethrough freely while separating the pair of electrode layers from each other, and provides a redox flow battery including a cell stack without a ion exchange membrane.