ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,586, issued on Sept. 30, was assigned to LG ENERGY SOLUTION LTD. (Seoul, South Korea).

"Separator comprising dual coating layers and secondary battery comprising the same" was invented by Kyung Ryun Ka (Daejeon, South Korea), Su Jin Park (Daejeon, South Korea), Sang Joon Lee (Daejeon, South Korea) and Je An Lee (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A separator having a polyolefin substrate, first coating layer including first inorganic particles on at least one surface of the polyolefin substrate and a second coating layer including second inorganic particles on a surface of the first coating layer opposite the polyol...