HIGH SOLUBILITY IRON HEXACYANIDES

摘要

Stable solutions comprising high concentrations of charged coordination complexes, including iron hexacyanides are described, as are methods of preparing and using same in chemical energy storage systems, including flow battery systems. The use of these compositions allows energy storage densities at levels unavailable by other iron hexacyanide systems.

主权项

1. A solution comprising:
an aqueous solvent; a dissolved iron hexacyanide complex having a concentration in the aqueous solvent ranging between about 1 M and about 3 M; and at least two different counterions forming a salt of the dissolved iron hexacyanide complex;
wherein the solution has a pH of about 13 or less.