US Patent Issued to NINGDE AMPEREX TECHNOLOGY on Feb. 24 for "Jelly-roll battery cell and electrochemical device" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,401, issued on Feb. 24, was assigned to NINGDE AMPEREX TECHNOLOGY Ltd. (Ningde, China).

"Jelly-roll battery cell and electrochemical device" was invented by Dian Yang (Dongguan, China) and Congfei Yan (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A jelly-roll battery cell includes a first electrode plate, a second electrode plate, and a separator, and includes a central region enclosed by the first electrode plate, the second electrode plate, and the separator, and has a thickness direction. The first electrode plate includes: a first current collector, where the first current collector includes a first surface and a second surface...