ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,230,812, issued on Feb. 18, was assigned to Samsung SDI Co. Ltd. (Yongin-si, South Korea).
"Button cell" was invented by Jong-Ha Lee (Yongin-si, South Korea), Youmee Kim (Yongin-si, South Korea) and Byoungmin Chun (Yongin-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case having an opening and housing the electrode assembly; and a cap assembly sealing the opening of the case, and the cap assembly includes: a cap plate bonded to the case and covering the opening; a...