ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,066, issued on July 21, was assigned to Samsung SDI Co. Ltd. (Yongin-si, South Korea).

"Secondary battery" was invented by Geon Kyu Sung (Yongin-si, South Korea), Dong Jin An (Yongin-si, South Korea), Ho Jae Lee (Yongin-si, South Korea), Hyun Ki Jung (Yongin-si, South Korea), Ye Jin Cho (Yongin-si, South Korea) and Yeon Hwa Lee (Yongin-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A technical problem to be solved according to the present disclosure is to provide a secondary battery capable of minimizing contact resistance between a base finish part of an electrode assembly and a can even when a deviation in the winding radius of the...