ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,209, issued on March 17, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Redox flow battery" was invented by Hirokazu Kaku (Osaka, Japan) and Ryouta Tatsumi (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A redox flow battery includes a positive electrolyte containing a positive electrode active material and a negative electrolyte containing a negative electrode active material. A liquid amount of the positive electrolyte is different from a liquid amount of the negative electrolyte. Of the positive electrolyte and the negative electrolyte, a liquid amount ratio of the electrolyte larger in liquid amount to the elect...