ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,828, issued on Sept. 22, was assigned to STORION ENERGY LLC (Alpharetta, Ga.).

"Determining state of charge, molarity and oxidation state in a flow battery and controlling a flow battery" was invented by Eric Alexandrescu (Watertown, Mass.), Michael L. Perry (Noank, Conn.) and Michael T. Falcinelli (Boxford, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method for measuring the state of charge (SOC), molarity and concentrations of active species and oxidation state of a flow battery, such as a Vanadium Redox Flow Battery (VRFB). A reference electrolyte is circulated through a reference cell in conjunction with one or both charge...