A reaction cell for a flow battery having flow channels positioned within a recess of a non-porous and non-brittle housing that is also a dielectric. Positioning the flow channels within the recess eliminates the need for end plates, gaskets, and insulators of conventional designs. A current collector and an electrode within the recess have areas approximately equal to the area of the recess such that they fit within the recess and maximize the contact area between them.

A vehicle comprises a tank that is placed behind a front component in a front-rear direction of the vehicle and that is arranged such that a longitudinal direction of the tank is along the front-rear direction; and a fixation member configured to fix the tank to a vehicle body of the vehicle. The front component and the tank are arranged to at least partly overlap with each other when the vehicle is viewed from a forward direction side. The fixation member releases fixation of the tank to the vehicle body when the front component comes into contact with the tank to apply an external force along the longitudinal direction that is equal to or greater than a predetermined value, to the tank.

A vehicle includes: a front room disposed at a front portion of the vehicle in the vehicle in a vehicle-longitudinal direction; a fuel cell stack disposed in the front room, the fuel cell stack including multiple cells stacked in the vehicle-longitudinal direction; and a buffer member disposed in front of the fuel cell stack in the vehicle-longitudinal direction.

A vehicle includes: a front room disposed at a front part of the vehicle in a longitudinal direction of the vehicle; a fuel cell stack disposed in the front room, the fuel cell stack including multiple cells stacked in the longitudinal direction; a bumper reinforcement disposed at a front part of the front room in the longitudinal direction; and a buffer member disposed between the fuel cell stack and the bumper reinforcement in the longitudinal direction. At least a part of the buffer member overlaps with the bumper reinforcement, as viewed from a direction along the longitudinal direction.

A mount structure for a fuel cell stack includes a first bracket member supporting and fixing the fuel cell stack to a first installation member, and a second bracket member supporting and fixing the fuel cell stack to a second installation member. A part of the second bracket includes a constricted portion having low strength in comparison with other portions of the second bracket member.

There is provided a fuel cell vehicle, including a high voltage system disposed in a front compartment of the vehicle, and a first protruding portion that protrudes in a left-right direction of the vehicle toward a vehicle body of the vehicle further than a portion of the high voltage system that is closest to the vehicle body, and is fixed to the high voltage system, in which, when the vehicle is placed on a horizontal plane, the first protruding portion is arranged such that a position of a first most-protruded portion of the first protruding portion that protrudes most toward the vehicle body in a height direction is located at the same position or higher than a center of gravity of the high voltage system.

A bracket has deformation resistant strength set to be overwhelmed by an input load applied to the bracket from a rearward side toward a forward side when a fuel cell vehicle collides with an object.

Provided is a vehicle with a fuel cell unit, specifically, a vehicle with a configuration in which a fuel cell unit is arranged anterior to a dashboard as well as a toe board located below the dashboard, where the fuel cell unit is arranged to be prevented from colliding with the toe board upon occurrence of unforeseen impact on the fuel cell unit. The fuel cell unit includes at least a fuel cell group, a stack manifold provided on the fuel cell group on the vehicle rear side, and an air valve device fixed to the stack manifold. The stack manifold has a recess portion formed in a part thereof. The air valve device is fixed to the stack manifold with at least a part of the air valve device received within the recess portion.

A vehicle front structure includes a pair of front side members, the front side members being respectively placed on the right side and on the left side in a vehicle width direction in a vehicle front space ahead of a vehicle cabin space in a vehicle, so as to extend in a vehicle front-rear direction. A fuel cell unit is placed in a region sectioned by the front side members in the vehicle front space. A high-voltage component is placed above the front side members, and an inner edge portion of the high-voltage component in the vehicle width direction is placed outwardly in the vehicle width direction from an inner edge portion of the front side member in the vehicle width direction.

In order to limit entry of a fuel cell stack into a passenger compartment by a simple structure, the fuel cell stack is accommodated in an accommodating compartment formed at a rear of a passenger compartment. A force receiving member is arranged forward with respect to the fuel cell stack and below the fuel cell stack so that rearward force acts on the force receiving member at the time of vehicle collision. When the rearward force acting on the force receiving member due to vehicle collision is larger than a predetermined upper limit value, the rearward force is converted into upward force, and the upward force is transmitted to a forward bottom surface of the fuel cell stack, whereby a forward end part of the fuel cell stack is lifted up with respect to a rearward end part of the fuel cell stack upon vehicle collision.