When a first timing at which a fuel gas is injected to a fuel gas supply flow path by an injector and a second timing at which water residing on a circulation flow path is discharged by controlling rotating speed of a circulation pump coincide with each other, a controller performs either: (i) a first process of operating the circulation pump at a preset RPM without injecting the fuel gas to the fuel gas supply flow path by the injector; or (ii) a second process of injecting the fuel gas to the fuel gas supply flow path by the injector and operating the circulation pump at an RPM lower than the preset RPM.

Redox flow devices are described in which at least one of the positive electrode or negative electrode-active materials is a semi-solid or is a condensed ion-storing electroactive material, and in which at least one of the electrode-active materials is transported to and from an assembly at which the electrochemical reaction occurs, producing electrical energy. The electronic conductivity of the semi-solid is increased by the addition of conductive particles to suspensions and/or via the surface modification of the solid in semi-solids (e.g., by coating the solid with a more electron conductive coating material to increase the power of the device). High energy density and high power redox flow devices are disclosed. The redox flow devices described herein can also include one or more inventive design features. In addition, inventive chemistries for use in redox flow devices are also described.

A safety apparatus for portable power generation of a fuel cell vehicle and an operation method thereof are provided. The safety apparatus includes a fuel cell that supplies power required for driving a motor of the fuel cell vehicle and a battery used as an auxiliary power source of the fuel cell. A bidirectional power converter adjusts input power and output power of the battery. A connection port connects to a portable power generator positioned extraneous to the fuel cell vehicle and a relay is connected to the connection port to adjust supplying of power to the portable power generator. A fuel cell controller determines whether a vehicle state satisfies a portable power generation mode entering condition when start-up of the fuel cell vehicle is turned on and operates the relay based on a confirmation result to perform portable power generation.

A fuel cell stack includes a membrane electrode assembly and a bipolar plate. The bipolar plate has a corrugated portion defined by an adjacent pair of proximal and distal peak portions and a sidewall segment connecting the peak portions. The sidewall segment and membrane electrode assembly at least partially define a flow channel. The sidewall segment includes a shoulder portion defining a step spaced away from the peak portions.

A fuel cell vehicle includes a battery disposed in a first space, a radiator disposed in a second space formed adjacent to the first space in a second direction intersecting a first direction, which is a direction in which the vehicle travels, and at least one fuel cell unit disposed in a third space formed adjacent to the first space in the second direction while being spaced apart from the second space in the second direction, with the first space interposed therebetween.

A fuel cell vehicle includes a battery disposed in a first space, a radiator disposed in a second space formed adjacent to the first space in a second direction intersecting a first direction, which is a direction in which the vehicle travels, and at least one fuel cell unit disposed in a third space formed adjacent to the first space in the second direction while being spaced apart from the second space in the second direction, with the first space interposed therebetween.

A saddle-ride type vehicle includes a vehicle body frame steerably supporting a front fork by a head pipe and swingably supporting a rear wheel unit around a pivot, an air-cooled type fuel cell unit supported by the vehicle body frame on a rear side of the head pipe and including an outside air intake port facing forward, and a vehicle body cover defining a front of an intake air space that is connected to the intake port. The vehicle body cover includes a traveling air passage changing a direction of traveling air that flows in from a front. Accordingly, it is possible to efficiently supply traveling air to a fuel cell unit that includes a fuel cell.

A vehicle includes: a vehicle body; a gas tank having a tank main body that includes a cylindrical barrel part and a cap that is provided at one end of the tank main body in a longitudinal direction; a bracket fixing the cap to the vehicle body; and a band surrounding an outer circumferential surface of the barrel part and fixing the barrel part to the vehicle body, wherein the gas tank is arranged such that the longitudinal direction extends along a front-rear direction of the vehicle, the bracket includes an engaging part that restrict movement of the gas tank in the longitudinal direction by engaging with an engaged part provided in the cap, and movement of the gas tank in the longitudinal direction is restricted by the engaging part only at the one end, and not at the other end, of the gas tank in the longitudinal direction.

An electro-hydrogen driving unit that can be integrated into an automobile includes a power source, a water supply, a hydrogen production unit, a hydrogen storage unit, a power conversion unit, and a driving unit. When parked and charging, the power source and the water supply are used to generate hydrogen at the hydrogen production unit. The generated hydrogen is stored at the hydrogen storage unit at a high pressure. When the automobile is running, the power conversion unit uses the stored hydrogen to produce electricity which spins an electric motor of the driving unit. The power conversion unit can be a fuel cell that draws hydrogen and produces electricity. In another instance, the power conversion unit can be a combination of an internal combustion engine and a generator.

A control device for a vehicle includes a fuel cell, a motor-generator, a power unit, a transmission, a motor-generator control unit configured to perform a power control on the motor-generator based on a driver request torque, and a generated power control unit configured to control the generated power of the fuel cell based on a load of the fuel cell including the motor-generator. The motor-generator control unit performs a shifting power control for decreasing a rotation speed of the motor-generator during an upshift of the transmission, and a power control on the motor-generator based on a limit torque of the motor-generator during the shifting power control. The limit torque of the motor-generator being calculated based on an actual generated power of the fuel cell per unit time and an acceptable power of the power unit per unit time.