ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,394, issued on April 22, was assigned to SK NEXILIS Co. LTD. (Jeongeup-si, South Korea).

"Copper foil with anti-wrinkle property, electrode comprising same, secondary battery comprising same, and manufacturing method therefor" was invented by Shan Hua Jin (Jeongeup-si, South Korea), An Na Lee (Jeongeup-si, South Korea) and Seung Min Kim (Jeongeup-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided in one embodiment of the present disclosure is a copper foil, which comprises a copper layer having a matte surface and a shiny surface, and an anticorrosive film arranged on the copper layer, and has a residual stress of 0.5-25 MPa on t...