ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,184, issued on Jan. 27, was assigned to NINGDE AMPEREX TECHNOLOGY Ltd. (Ningde, China).

"Electrochemical device and electronic device" was invented by Kefei Wang (Ningde, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrochemical device, including a cathode, an anode and an electrolyte. The cathode includes a cathode current collector and a cathode mixture layer formed on the cathode current collector. A dyne value of the cathode current collector is 25 dyn/cm to 31 dyn/cm. Burrs are provided on an edge of the cathode mixture layer, and a length of the burrs is not greater than 4 mm. The electrochemical device has improved cycle perform...