ALEXANDRIA, Va., March 3 -- United States Patent no. 12,567,576, issued on March 3, was assigned to LG ENERGY SOLUTION LTD. (Seoul, South Korea).

"Method of preparing negative electrode" was invented by Hyun Chul Kim (Daejeon, South Korea), Oh Byong Chae (Daejeon, South Korea) and Sang Wook Woo (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of preparing a negative electrode which includes preparing a negative electrode structure including expanded natural graphite, impregnating the negative electrode structure with a pre-lithiation solution to form an impregnated negative electrode structure, and pre-lithiating the impregnated negative electrode structure by electrochemically c...