ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,173, issued on Dec. 23, was assigned to ZHUHAI COSMX BATTERY Co. LTD. (Zhuhai, China).
"Lithium-ion secondary battery" was invented by Jiao Li (Zhuhai, China) and Jialin Fang (Zhuhai, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lithium-ion secondary battery comprises a positive electrode plate, a negative electrode plate, the positive electrode active material comprises lithium cobaltate containing the element Al, and the mass content c1 of the element Al in the positive electrode active coating layer is 6800-15000 ppm; the negative electrode plate comprises a negative electrode active coating layer, and the negative electrode active coat...