ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,203, issued on June 17, was assigned to HUANG CHIEH METAL COMPOSITE MATERIAL TECH. Co. LTD. (New Taipei, Taiwan).
"Method of forming shell of soft pack battery" was invented by Chin-Han Wang (New Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of forming a shell of a soft pack battery is provided. The method includes steps of adjusting temperature of a thin sheet material for the shell to a working temperature, applying a difference of fluid pressure to the thin sheet material as forming pressure, and a two-stage forming step. In a first-stage preforming step, a preform with a first depth is formed by the thin sheet material a...