ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,237,520, issued on Feb. 25, was assigned to LG ENERGY SOLUTION LTD. (Seoul, South Korea).
"Cylindrical battery" was invented by Hyeon Min Song (Daejeon, South Korea) and Duk Hyun Ryu (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cylindrical battery includes a metal can, an electrode assembly located in the metal can, a cap assembly containing a current interruptive device located on a top of the electrode assembly, an upper insulator located between the cap assembly and the electrode assembly, and at least one spring integrally connected to a lower surface of the current interruptive device."
The patent was filed on July 7, 202...