ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,388,083, issued on Aug. 12, was assigned to Sumitomo Chemical Co. Ltd. (Tokyo).

"Method for manufacturing active material" was invented by Satoshi Shimano (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing an active material, the method comprising the following steps: (1) mixing an activation agent containing one kind or two or more kinds of alkali metal compounds into an electrode mixture containing an active material and a binder; (2) heating a mixture thus obtained to a temperature higher than or equal to a melting start temperature of the activation agent in an atmosphere having an oxygen partial pressure of 0.3 ...