Cell separation element for battery device of motor vehicle, battery device and motor vehicle

The invention relates to a battery device (10) comprising a battery module (12) having a cell stack (15) with a plurality of cells (14) arranged next to one another in a stacking direction (S) and one or more cell separating elements (18), one of the cell separating elements (18) being arranged between each two cells (14) arranged adjacent to one another. In this case, at least one of the cell separating elements (18) projects from a gap (20) between the two cells (14), in which the cell separating elements (18) are arranged, on a side surface (15a) of the cell stack (15), the projecting cell separating elements (18) being connected to an active cooling device (22), through which a cooling medium (26) can flow, which cooling device is included in the battery device (10). 本发明涉及一种电池装置(10)，其包括电池模块(12)，电池模块具有带有多个在堆叠方向(S)上并排布置的电芯(14)的电芯堆(15)和一个或多个电芯分隔元件(18)，其中，在每两个彼此相邻地布置的电芯(14)之间布置有电芯分隔元件(18)中的一个。在此，电芯分隔元件(18)中的至少一个在电芯堆(15)的侧面(15a)处从在两个电芯(14)之间的、在其中布置有电芯分隔元件(18)的间隙(20)中伸出，其中，伸出的电芯分隔元件(18)连接在可被冷却介质(26)穿流的主动式的冷却装置(