| 摘要 |
PROBLEM TO BE SOLVED: To provide a re-activation method of an electrode for a redox flow battery capable of improving battery efficiency by restoring increased cell resistance. SOLUTION: Organic matter deposited on an electrode impregnated with an electrolytic solution for the redox flow battery is rinsed out by using an oxidant. As the oxidant, a solution including pentavalent vanadium ions, or at least one of hydrogen peroxide and sulfuric acid is preferable. Resolved matter/eluted matter from an organic compound used as a constituent material for a redox flow battery get mixed in the electrolytic solution and the electrolytic solution circulates in this state in a cell, whereby the organic matter deposited on the electrode is rinsed out by the oxidant to effectively restore the cell resistance. COPYRIGHT: (C)2004,JPO
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