ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,394,863, issued on Aug. 19, was assigned to G-MATERIALS Co. LTD. (Gwangmyeong-si, South Korea).

"Composite separator for lithium secondary battery and manufacturing the same" was invented by Chang Sup Lim (Seoul, South Korea), Kyoung Ran Im (Seoul, South Korea) and Soon Yong Jeong (Gwangmyeong-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a composite separator for a lithium secondary battery, and an aqueous manufacturing method therefor, the composite separator comprising: a porous polymer substrate; a heat-resistant coating layer containing inorganic material formed on the surface of the porous polymer ...