US Patent Issued to Sumitomo Chemical, Kyoto University on Aug. 25 for "Method for producing positive electrode active material" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,784, issued on Aug. 25, was assigned to Sumitomo Chemical Co. Ltd. (Tokyo) and Kyoto University (Kyoto, Japan).

"Method for producing positive electrode active material" was invented by Marie Takiguchi Takemoto (Osaka, Japan) and Satoshi Shimano (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a positive electrode active material comprising: (1) mixing an activation agent containing one or more types of alkali metal compounds with an electrode material mixture; (2) heating the mixture at a temperature at a melting start temperature of the activation agent or more; (3) bringing the mixture after step (2) into contac...