ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,719,138, issued on Aug. 25, was assigned to PRIME PLANET ENERGY & SOLUTIONS INC. (Tokyo).

"Manufacturing method of electrode plate, manufacturing method of secondary battery, electrode plate, and secondary battery" was invented by Kentaro Tsukamoto (Kobe, Japan), Kyogo Sumi (Kobe, Japan) and Yoshifumi Magari (Hirakata, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The herein disclosed manufacturing method of the electrode plate includes a core body exposed area cutting step for cutting a negative electrode core body exposed area with a laser, on which a negative electrode core body is exposed while a negative electrode active material layer is no...