ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,989, issued on Oct. 20, was assigned to CALB Group Co. Ltd. (Jiangsu, China).

"Cylindrical battery" was invented by Yawei Wang (Changzhou, China), Binwei Qi (Luoyang, China), Qianqian Sun (Changzhou, China) and Lulu Zhang (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to the technical field of batteries, and a cylindrical battery is provided, including: a single cell housing structure; a core, which is arranged in the single cell housing structure, and the core includes a core body, a first tab and a second tab, and the first tab and the second tab arranged at intervals extend out from the same end of the cor...