ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,271, issued on March 17, was assigned to LG Energy Solution Ltd. (Seoul, South Korea).
"Secondary battery" was invented by Ik Jong Lee (Daejeon, South Korea), Duk Hyun Ryu (Daejeon, South Korea) and Jung Hoon Kim (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A secondary battery includes an electrode assembly in which electrodes and separators are alternately stacked to be wound, a can configured to accommodate the electrode assembly therein, having an opening in an upper end thereof, and provided with a beading part that is bent inward to form a recessed groove, a cap assembly seated on the beading part to cover the opening o...