US Patent Issued to LG Chem on May 5 for "Method of washing positive electrode active material, and positive electrode active material prepared thereby" (South Korean Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,620,590, issued on May 5, was assigned to LG Chem Ltd. (Seoul, South Korea).

"Method of washing positive electrode active material, and positive electrode active material prepared thereby" was invented by Won Sig Jung (Daejeon, South Korea), Sang Soon Choi (Daejeon, South Korea) and Hyun Ah Park (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A positive electrode active material includes a lithium composite transition metal oxide and a lithium by-product present on the surface of the lithium composite transition metal oxide. The lithium by-product is included at 0.3 mol % to 0.41 mol % with respect to a total mole number of the lithiu...