ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,525,666, issued on Jan. 13, was assigned to Volocopter GmbH (Bruchsal, Germany).

"Battery cooling device and method for cooling a battery cell of an electrically powered aircraft" was invented by Nils Ziegler (Bretten, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A battery cooling device (6) for cooling at least one battery cell (5) of an electrically operated aircraft is provided, the battery cooling device (6) having a first cooling device (7, 8) configured for absorbing a first amount of heat at least from the battery cell (5) in an electrical discharging process and thereby cooling it. The first cooling device has at least one latent heat ...