The invention relates to a device and a method for isolating a fuel cell, which make it possible to safely work on the fuel cell during a servicing or repair operation.

A fuel cell system column includes a first terminal plate connected to a first electrical output of the column, a second terminal plate connected to a second electrical output of the column, at least one first fuel cell stack located in a middle portion of the column between the first terminal plate and the second terminal plate, and at least one electrical connection which is electrically connected to the middle portion of the column and which is configured to provide a more uniform fuel utilization across the first column.

A fuel cell system includes a fuel cell stack, a fuel gas supply channel, a fuel gas circulation channel, a circulating pump that is driven by a pump motor having no rotation detecting sensor, and an ECU. When a method for operating the fuel cell system determines that the circulating pump is frozen in a low-temperature environment, the method performs a first step of performing a brake mode to limit the rotation of the pump motor while passing current to the pump motor, to thereby heat the pump motor. The method further performs a second step of, after rotating the pump motor, determining that the circulating pump has unfrozen if the rotational speed of the pump motor exceeds a given value.

The present invention relates to a method for determining the compressive tensile force acting on a fuel cell stack due to at least one tensioning element. Thereby, the compressive tensile force is the overall tensile force compressing the fuel cell stack. This is determined according to the invention by means of acoustic measurements on vibratable sections of the tensioning elements. The subject matter of the invention also includes a data processing program for carrying out the method according to the invention along with the use of a smartphone for carrying out the method according to the invention.

A method for controlling a power generation system according to one aspect of the present disclosure includes, in a power generation system including a plurality of power generation units, each of the plurality of power generation units including fuel cell: dividing the plurality of power generation units into a plurality of groups; and controlling the power generation units such that the power generation units deteriorate in a different degree for each group.

Systems and methods are provided for a fuel cell including a fuel desulfurization system. The method includes receiving fuel from a fuel source in a first phase and depressurizing the fuel in the first phase in a vacuum system to convert at least a portion of the fuel into a second phase. The method further includes reforming the portion of the fuel in the second phase to create a hydrogen enriched fuel in the second phase, and delivering the hydrogen enriched fuel in the second phase to a fuel cell stack.

Systems and methods are provided for a fuel cell including a fuel desulfurization system. The method includes receiving fuel from a fuel source in a first phase and depressurizing the fuel in the first phase in a vacuum system to convert at least a portion of the fuel into a second phase. The method further includes reforming the portion of the fuel in the second phase to create a hydrogen enriched fuel in the second phase, and delivering the hydrogen enriched fuel in the second phase to a fuel cell stack.

The application relates to a novel module for electrolysis or co-electrolysis of water or of SOFC fuel cell, within which the forces necessary to compress the seals are decoupled from those necessary for the electrical contact elements that ensure the passage of current in the module.

The application relates to a novel module for electrolysis or co-electrolysis of water or of SOFC fuel cell, within which the forces necessary to compress the seals are decoupled from those necessary for the electrical contact elements that ensure the passage of current in the module.

A stack case includes a lower surface and at least one through hole. The lower surface is at a bottom of the stack case in a vehicle height direction of the vehicle. The at least one through hole opens to an inside of the stack case. An outer opening opens to an outside of a vehicle. The at least one vent pipe has one end and another end opposite to the one end along a length of the at least one vent pipe. The one end is connected to the at least one through hole provided in the stack case. The another end is connected to the outer opening in the vehicle body. The drain hole is provided in the lower surface of the stack case to be open to an inside of a motor compartment. The drain hole is located below the outer opening in the vehicle height direction.