ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,262, issued on Sept. 22, was assigned to SK INNOVATION Co. LTD. (Seoul, South Korea).

"Method for recovering active metals from lithium secondary battery" was invented by Suk Joon Hong (Daejeon, South Korea), Ji Min Kim (Daejeon, South Korea), Ji Yun Park (Daejeon, South Korea) and Sung Real Son (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a method for recovering active metals from a lithium secondary battery according to exemplary embodiments, a cathode active material mixture including a lithium composite oxide may be reacted with a reducing reaction gas under a pressurized condition and washed with water. In this case,...