Cooling device for cooling of battery cells, the battery device and the cooling method

Cooling device (10) for cooling of battery cells (12), comprising a heat exchange element (14) for thermal connection with a battery cell (12) for conducting heat from the battery cell (12) to an environment (20) and one of the heat exchange element (14 ) remote cooling medium supply means (16) for supplying a cooling medium (30) to the heat exchange element (14), wherein the cooling medium supply means (16) adjacent to the heat exchange element (14) arranged in the cooling medium guide (32) for guiding the cooling medium (30) in a region (36) separately from the battery cell (12), wherein the cooling medium guide (32) comprises at least a diversion (40) for passing cooling medium (30) towards the battery cell (12), wherein a plurality of heat exchange elements (14) and a plurality of Ausleiteinrichtungen (40) are provided, characterized in that cooling medium deflectors (42) are provided to achieve a same cooling medium pressure and / or an equal quantity of cooling medium to the heat exchange elements (14).