ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,548,848, issued on Feb. 10, was assigned to HITHIUM TECH HK Ltd. (Kowloon, Hong Kong).
"Explosion-proof sheet of secondary battery and secondary battery" was invented by Weidong Xu (Fujian, China), Ziqi Yi (Fujian, China), Zuyu Wu (Fujian, China), Nan Zhang (Fujian, China) and Yang Tang (Fujian, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An explosion-proof sheet of a secondary battery and a secondary battery are provided. The explosion-proof sheet has a main body portion, a fixing portion, and a cracking portion. The main body portion is opposite to the explosion-proof hole. A strengthening region is formed on the main body portion. The fixing...