MODIFIED VANADIUM COMPOUND, AND ITS PRODUCTION METHOD, ELECTROLYSIS SOLUTION COMPOSITION FOR REDOX FLOW TYPE BATTERY AND ITS PRODUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a modified vanadium compound which is capable of easily preparing an electrolysis solution composition for a redox flow type battery. SOLUTION: The modified vanadium compound contains an excessive sulfuric acid component except a sulfate radical which constitutes vanadium sulfate (III) or vanadyl sulfate (IV) in the vanadium sulfate or a mixed compound of the vanadium sulfate (III) and the vanadyl sulfate (IV).