ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,581, issued on Sept. 30, was assigned to SHENZHEN BAK POWER BATTERY Co. LTD. (Shenzhen, China).

"Cap for full-tab cylindrical lithium battery and full-tab cylindrical lithium battery" was invented by Junfeng Zhao (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application is applicable to the technical field of lithium batteries, and provides a full-tab cylindrical lithium battery cap and a full-tab cylindrical lithium battery, including an explosion-proof valve, an isolation ring, a connecting plate and a sealing ring, and the isolation ring is arranged between the explosion-proof valve and the connecting plate, the sealing ri...