Abstract: The invention relates to a fuel cell stack having a variety of individual cells stacked up to form a stack, having at least one humidifier section integrated into the stack and arranged at one end of the individual cells as an electrochemical section. The invention is characterized in that a heat exchanger section is arranged on the side of the at least one humidifier section facing away from the electrochemical section, wherein flow plates for distributing fluids in at least three sections of the stack have the same external geometry.

Abstract: A treatment device for treating exhaust gases of a fuel cell stack of a fuel cell system is provided. A humidifier, in which the exhaust gas is usable for humidifying a medium capable of being introduced into the fuel cell stack, includes a water separator for reducing a content of liquid water in the exhaust gas. The humidifier and the water separator are integrated in a common constructional unit. An outflow area of the humidifier has a cross-section capable of being passed, which is larger than a cross-section of an inflow area of the humidifier capable of being passed. The constructional unit includes at least one collection area for the liquid water separated upon exit from the outflow area.

Abstract: A fuel cell module includes at least one fuel cell stack with a housing. The at least one fuel cell stack is arranged, with a plurality of system components for conducting and/or conditioning the fluids for the supply of the at least one fuel cell stack, with a mechanical interface for fastening the fuel cell module to the vehicle. The mechanical interface is arranged on the housing, wherein the housing forms a carrier for the system components.

Abstract: A fuel cell stack arrangement includes a fuel cells arranged between a first and a second end plate. At least one of the end plates is designed as a channel end plate with at least one channel. The channel has a stack opening, which is opened in the direction of the stack, and a second opening. The stack opening and the second opening are connected to each other via a channel section and are arranged at a distance to each other in a top view looking down on the channel end plate.

Abstract: A humidifier device for humidifying a fluid in a fuel cell system of a motor vehicle is provided. The humidifier device has a housing, in which is arranged at least one membrane, and a bypass channel for bypassing the at least one membrane. The bypass channel has a non-circular cross-section.

Abstract: The present invention relates to a humidifier module (1) for humidifying a fluid in a fuel cell system of a motor vehicle, with a housing (2) having two housing parts (2a, 2b), wherein a humidifier unit (3) with at least one membrane is arranged between the housing parts (2a, 2b), wherein the humidifier unit (3) is formed in the shape of a single cartridge.

Abstract: A humidifier device for humidifying a fluid in a fuel cell system of a motor vehicle is provided. The humidifier device has a housing, in which is arranged at least one membrane, and a bypass channel for bypassing the at least one membrane. The bypass channel has a non-circular cross-section.