ALEXANDRIA, Va., June 2 -- United States Patent no. 12,646,708, issued on June 2, was assigned to GRAPSIL Co. LTD. (Chungcheongnam-do, South Korea).

"Multilayered anode active material, method of preparing the same, and lithium secondary battery including the same" was invented by Huijin Kim (Chungcheongnam-do, South Korea) and Hyunki Park (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an anode active material having a multilayered structure including a core including a carbon material, a first shell surrounding the core and including silicon particles, and a second shell surrounding the first shell and including a first crystalline carbon layer, a first amorphous carbon lay...