ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,239, issued on Jan. 27, was assigned to SK INNOVATION Co. LTD. (Seoul, South Korea).

"Method for regenerating lithium precursor and system for regenerating lithium precursor" was invented by Min Su Koo (Daejeon, South Korea) and Hong Sik Kim (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a method for regenerating a lithium precursor, an electrode active material mixture collected from a lithium secondary battery is prepared. The electrode active material mixture is reduced in a dry rotary heating reactor to form a preliminary precursor mixture. A lithium precursor is selectively recovered from the preliminary precursor mixtu...