US Patent Issued to SUMITOMO METAL MINING on June 17 for "Positive electrode active material for lithium ion secondary battery and lithium ion secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,549, issued on June 17, was assigned to SUMITOMO METAL MINING Co. LTD. (Tokyo).

"Positive electrode active material for lithium ion secondary battery and lithium ion secondary battery" was invented by Haruki Kaneda (Niihama, Japan) and Yuki Koshika (Niihama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positive electrode active material for a lithium ion secondary battery, the positive electrode active material including a lithium-nickel composite oxide having a hexagonal layered structure and configured by particles including at least either single primary particles or secondary particles with a plurality of aggregated primary particles, ...