ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,946, issued on June 17, was assigned to JFE CHEMICAL Corp. (Tokyo).
"Carbon material for negative electrode of lithium ion secondary battery and method of producing the same, and negative electrode and lithium ion secondary battery using the carbon material" was invented by Ryuta Haga (Tokyo) and Tetsuo Shiode (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a carbon material for a negative electrode of a lithium ion secondary battery, which has a small particle diameter, high initial charge-discharge efficiency, and a high 2 C discharge rate, and achieves both input-output characteristics and durability. Disclosed is a carbon mater...