ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,525,636, issued on Jan. 13, was assigned to VARTA Microbattery GmbH (Ellwangen Jagst, Germany).
"Electrochemical energy storage cell" was invented by Rainer Hald (Ellwangen, Germany) and Werner Schreiber (Meine, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An energy storage cell includes a cylindrical housing that encloses an interior space and a housing casing, a wound composite body arranged in the interior space and having a helical structure including at least two electrode strips and at least one separator strip arranged between the electrode strips, each including a strip-shaped current collector having an active material coating, the wo...