US Patent Issued to Murata Manufacturing on Sept. 15 for "Composite cathode active material, preparation method thereof, cathode sheet and lithium ion secondary battery" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,479, issued on Sept. 15, was assigned to Murata Manufacturing Co. Ltd. (Kyoto, Japan).

"Composite cathode active material, preparation method thereof, cathode sheet and lithium ion secondary battery" was invented by Jixian Lv (Shanghai), Yuli Li (Shanghai) and Siming Yang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composite cathode active material, which comprises a core layer comprising a cathode active material; a hydrogen fluoride barrier layer coating the core layer, the hydrogen fluoride barrier layer comprising a substance consisting of any one of Nb, Ba, Zr, Mn, Mg, Al and Ca or any combination thereof and any one of O, F, B ...