ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,568, issued on Oct. 21, was assigned to SHENZHEN HYNETECH COMPANY Ltd. (Guangdong, China).
"Button battery" was invented by Xiaoxia Wang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A button battery, comprising a pole assembly unit which comprises a first winding core, a first tab, and a first current collector; the first winding core comprises a first electrode layer, a second electrode layer, and a first separator sandwiched between the adjacent first electrode layer and second electrode layer, the polarities of the first electrode layer and second electrode layer being opposite to each other. The button battery also comprises ...