NOVELTY - The rechargeable battery comprises a battery module having a stack of battery cells arranged next to one another, and a liquid cooling system that comprises a cooling channel (5) and is present in thermal contact with the battery cell, where a cooling-channel carrier (4) having the cooling channel is arranged between two adjacent battery cells and comprises two parts that are tightly connected to each other. The cooling channel is formed into a first part. A second part of the cooling-channel carrier is formed by a film (9).    USE - The rechargeable battery is useful for an electric vehicle.    ADVANTAGE - The rechargeable battery is simple and cost-effective.    DETAILED DESCRIPTION - The rechargeable battery comprises a battery module having a stack of battery cells arranged next to one another, and a liquid cooling system that comprises a cooling channel (5) and is present in thermal contact with the battery cell, where a cooling-channel carrier (4) having the cooling channel is arranged between two adjacent battery cells and comprises two parts that are tightly connected to each other. The cooling channel is formed into a first part. A second part of the cooling-channel carrier is formed by a film (9). The cooling channel is formed in meander-like manner and formed into the cooling-channel carrier between an inlet and an outlet. The inlet with an inlet collecting channel is arranged transverse to the cooling-channel carrier and the outlet with an outlet collecting channel is arranged transverse to the cooling-channel carrier are flow-connected, where the cooling channels are flow-connected with one another to two cooling-channel carriers by the inlet and outlet collecting channels. A shape of the second part is planar. The cooling channel comprises trains parallelly arranged to each other in the cooling-channel carrier, where a distance of two neighboring trains in the range of an upper half of the cooling-channel carrier is smaller than the range of a bottom half of the cooling-channel carrier. The cooling-channel carrier is formed by a cooling plate arranged between two battery cells and by a cell carrier taking up the battery cell. First part (4a) of the cooling-channel carrier consists of: metal sheet, where, in both parts, the cooling channel is formed by a metal sheet reforming process; and a plastic injection molding. The cell carrier comprises a frame for receiving the battery cell. The cooling channel is formed into plastic. The film: is formed in an electrical isolating- and liquid-tight manner; and consists of plastic and metal. Second part (4b) of the cooling-channel carrier is firmly connected by sticking, soldering or laser welding. The inlet collecting channel and/or the outlet collecting channel are formed by pipe segments pluggable into each other, where one of the pipe segments is firmly connected with the cooling-channel carrier. The battery cell and the cooling-channel carrier are used in a cell carrier housing that comprises a lower housing portion and an upper housing portion. The upper and lower housing portions and the cooling-channel carrier are positively connected with one another, where two battery cells are arranged between two cooling-channel carriers. The cooling-channel carrier comprises a main plane on both sides of the cooling-channel carrier and the cooling channel, where a communication port for the flow connection of the two cooling channels is arranged in a carrier wall.    DESCRIPTION OF DRAWING(S) - The figures show an oblique view of a cooling-channel carrier.    Cooling-channel carrier (4)    First part of the cooling channel (4a)    Second part of he cooling channel (4b)    Cooling channel (5)    Film. (9)