ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,137, issued on June 24, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) Ltd. (Hong Kong).

"Positive electrode active material and preparation method thereof, positive electrode plate, lithium-ion secondary battery, and battery module, battery pack, and apparatus containing such lithium-ion secondary battery" was invented by Shushi Dou (Ningde, China), Chunhua Hu (Ningde, China), Yao Jiang (Ningde, China), Qi Wu (Ningde, China), Jinhua He (Ningde, China) and Bin Deng (Ningde, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positive electrode active material and a preparation method thereof, a positive electrode plate, a lithium-ion...