US Patent Issued to Sumitomo Metal Mining on May 19 for "Lithium metal composite oxide, positive electrode active material for lithium secondary battery, positive electrode for lithium secondary battery, and lithium secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,633,532, issued on May 19, was assigned to Sumitomo Metal Mining Co. Ltd. (Tokyo).

"Lithium metal composite oxide, positive electrode active material for lithium secondary battery, positive electrode for lithium secondary battery, and lithium secondary battery" was invented by Marie Takemoto (Niihama, Japan) and Daisuke Nagao (Niihama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a lithium metal composite oxide represented by the composition formula (I), the lithium metal composite oxide satisfies requirements (1) to (3): (1) a ratio (I1/I2) of an integral intensity I1 of a diffraction peak in a range of 2Theta=36...