| abstract |
Provided is a redox flow battery equipped with: a battery cell provided with a positive electrode, a negative electrode, and a separating membrane interposed between the two electrodes; a positive electrolyte solution supplied to the positive electrode; and a negative electrolyte solution supplied to the negative electrode, wherein the positive electrolyte solution contains manganese ions and a phosphorus-containing compound, the negative electrolyte solution contains at least one species of metal ions selected from titanium ions, vanadium ions, chromium ions, and zinc ions, and the concentration of the phosphorus-containing compound is 0.001-1 M, inclusive. |