ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,337, issued on March 25, was assigned to FRIEDRICH-SCHILLER-UNIVERSITAET JENA (Jena, Germany).

"Aqueous electrolyte, redox flow battery and use thereof" was invented by Ulrich Sigmar Schubert (Jena, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aqueous electrolyte solution can comprise a redox-active compound, wherein the redox-active compound is a functionalized ferrocene containing solubility-facilitating groups attached to a cyclopentadienyl ring via spacers, the spacers having two to four carbon atoms.The electrolyte solution may be used in redox flow batteries and is characterized by high stability of the redox active compound at e...