ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,372, issued on Feb. 24, was assigned to SK ON Co. LTD. (Seoul, South Korea).

"Lithium secondary battery and method of manufacturing the same" was invented by Soo Ho Kim (Daejeon, South Korea), Min Gu Kang (Daejeon, South Korea), Young Hoon Do (Daejeon, South Korea) and Yong Hyun Cho (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cathode active material includes a first cathode active material particle and a second cathode active material particle. The first cathode active material particle includes a lithium metal oxide including a concentration gradient and has a secondary particle structure formed from an assembly of primar...