US Patent Issued to Sumitomo Metal Mining on Aug. 19 for "Positive electrode active material, high-temperature operation type lithium-ion polymer secondary battery, high-temperature operation type lithium ion inorganic all-solid-state secondary battery" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,394,794, issued on Aug. 19, was assigned to Sumitomo Metal Mining Co. Ltd. (Tokyo).

"Positive electrode active material, high-temperature operation type lithium-ion polymer secondary battery, high-temperature operation type lithium ion inorganic all-solid-state secondary battery" was invented by Kouji Oono (Narashino, Japan), Satoru Oshitari (Funabashi, Japan) and Shinichi Tanaka (Sakura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positive electrode active material that is used in a high-temperature operation type lithium ion solid secondary battery, wherein the positive electrode active material is made of oxide particles, which contains a ...