ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,051, issued on Sept. 16, was assigned to ZHUHAI COSMX BATTERY Co. LTD. (Zhuhai, China).
"Button cell and preparation method thereof" was invented by Ning Peng (Zhuhai, China) and Bin Xie (Zhuhai, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A button cell and a preparation method thereof, where the button cell includes a housing and a roll core; the housing includes a housing body and a top cover assembly, the housing body and the top cover assembly jointly enclose an accommodating cavity for accommodating the roll core; the roll core includes a first tab and a second tab, and the first tab is connected with a bottom wall of the housing body...