US Patent Issued to SUMITOMO METAL MINING, PANASONIC on March 25 for "Positive electrode active material for lithium ion secondary battery and lithium ion secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,292, issued on March 25, was assigned to SUMITOMO METAL MINING Co. LTD. (Tokyo) and PANASONIC Corp. (Osaka, Japan).

"Positive electrode active material for lithium ion secondary battery and lithium ion secondary battery" was invented by Yuki Koshika (Niihama, Japan), Haruki Kaneda (Niihama, Japan), Sho Tsuruta (Kadoma, Japan), Takashi Ko (Kadoma, Japan) and Fumiharu Niina (Kadoma, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The positive electrode active material for a lithium ion secondary battery contains a lithium-nickel-manganese composite oxide, in which metal elements constituting the lithium-nickel-manganese composite oxide include l...