vanadium sulfate acid reduction / oxidation potential flow battery system

摘要

The present invention relates to all vanadium sulfate oxidation / reduction potential flow battery systems having a catholyte and an anolyte comprising an aqueous support solution including chloride ions and phosphate ions. The aqueous support solution stabilizes and increases the solubility of vanadium species in the electrolyte, allowing increased vanadium concentration over a desired operating temperature range. according to one example, chloride ions are provided by mgc12, and phosphate ions are provided by (nh4) 2hpo4.