ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,321, issued on Nov. 18, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY Ltd. (Ningde, China).
"Battery cell, battery, and electrical device" was invented by Kai Wu (Ningde, China), Xiaobo Chen (Ningde, China), Sike Liu (Ningde, China), Mingguang Gu (Ningde, China) and Jingfeng Bai (Ningde, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The battery cell includes a shell, the shell has a wall portion, the wall portion includes a weak portion, and the weak portion is configured to be destroyed when the battery cell releases internal pressure. An outer surface of the wall portion has a center point. A maximum distance between a projection of the w...