ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,318, issued on Dec. 16, was assigned to LG ENERGY SOLUTION LTD. (Seoul, South Korea).
"Button-type secondary battery" was invented by Min Gyu Kim (Daejeon, South Korea), Joo Hwan Sung (Daejeon, South Korea), Yong Gon Lee (Daejeon, South Korea), Min Su Cho (Daejeon, South Korea) and Sang Hak Chae (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A button-type secondary battery includes an electrode assembly in which a negative electrode, a separator, and a positive electrode are layered wound in a state of being layered; a lower can in which the electrode assembly is mounted, and a space portion is defined as a surplus space in add...