ALEXANDRIA, Va., July 28 -- United States Patent no. 12,695,115, issued on July 28, was assigned to VARTA MICROBATTERY GMBH (Ellwangen Jagst, Germany).
"Electrochemical cell" was invented by Stefan Stock (Rainau-Dalkingen, Germany), Edward Pytlik (Ellwangen, Germany), David Ensling (Ellwangen, Germany) and Martin Elmer (Ellwangen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electrochemical cell includes a winding comprising a ribbon-shaped negative electrode with an anode current collector and a ribbon-shaped positive electrode with a cathode current collector. An assembly comprises the negative electrode and the positive electrode, the assembly is wound spirally around a winding axis to form t...