ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,767, issued on Oct. 28, was assigned to LG ENERGY SOLUTION LTD. (Seoul, South Korea).
"Waste battery treatment method" was invented by Eun Su Jang (Daejeon, South Korea), Jeong Kyu Kim (Daejeon, South Korea) and Bon Sik Joo (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a waste battery treatment method which includes preparing a waste battery including a waste positive electrode which includes an aluminum current collector and a positive electrode active material layer formed on at least one surface of the aluminum current collector, heat treating the waste battery at a temperature of 650deg C. ...