ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,409, issued on March 31, was assigned to GM Global Technology Operations LLC (Detroit).
"Apparatus for a prismatic battery cell with built-in springs" was invented by Liang Xi (Northville, Mich.), Binsong Li (Troy, Mich.) and Srilakshmi Katar (Troy, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for prismatic battery cell is provided. The apparatus includes a hard outer case defining an internal volume. The apparatus further includes an electrode stack disposed within the internal volume and includes a pair of an anode electrode and a cathode electrode. The electrode stack further includes a plurality of electrode pair layers sta...