A power source includes a container, a fuel cell stack disposed within the container, the fuel cell stack having an anode side and a cathode side, a hydrogen producing fuel disposed within the container and positioned to provide hydrogen to anode side of the fuel cell stack, and a pump disposed within the hydrogen producing fuel to circulate water vapor through the hydrogen producing fuel. A capacitor may be coupled to receive electricity generated by the fuel cell stack.

A reactant gas channel part provided outside an auxiliary machinery case of a fuel cell system is connected to a case through hole. A plurality of channel seal members are provided between the auxiliary machinery case and the reactant gas channel part, where the channel seal members are arranged side by side in the radial direction of the case through hole and surround the case through hole. The reactant gas channel part has an opposing surface that faces a surrounding portion of the auxiliary machinery case that surrounds the case through hole. The channel seal members include an inner seal member abutting on the opposing surface and an outer seal member disposed radially outside of it. A connection channel communicating with an internal space of the auxiliary machinery case is formed between the inner seal member and the outer seal member.

A reactant gas channel part provided outside an auxiliary machinery case of a fuel cell system is connected to a case through hole. A plurality of channel seal members are provided between the auxiliary machinery case and the reactant gas channel part, where the channel seal members are arranged side by side in the radial direction of the case through hole and surround the case through hole. The reactant gas channel part has an opposing surface that faces a surrounding portion of the auxiliary machinery case that surrounds the case through hole. The channel seal members include an inner seal member abutting on the opposing surface and an outer seal member disposed radially outside of it. A connection channel communicating with an internal space of the auxiliary machinery case is formed between the inner seal member and the outer seal member.

A dummy cell disposed at least at one end of a cell stack body in a fuel cell stack includes a dummy electrode assembly. The dummy electrode assembly includes a plate, and a pair of electrodes joined to both surfaces of the plate through adhesive layers, respectively. The adhesive layers are disposed only in a second area that lies outside a first area corresponding to a power generation area of a power generation cell in the dummy electrode assembly.

A dummy cell disposed at least at one end of a cell stack body in a fuel cell stack includes a dummy electrode assembly. The dummy electrode assembly includes a plate, and a pair of electrodes joined to both surfaces of the plate through adhesive layers, respectively. The adhesive layers are disposed only in a second area that lies outside a first area corresponding to a power generation area of a power generation cell in the dummy electrode assembly.

An improved bio-electrochemical wastewater treatment process and system (1) is disclosed. An electrode assembly (4) is defined by interconnecting a set of electrode modules (5). Each electrode module (5) has a first electrode of an anode-cathode pair coated with electrogenic microbes adapted to generate electrons via the consumption of organic matter in wastewater. An electrode module (5) has a second electrode of the anode-cathode pair, and a body, supporting and separating the first and second electrodes. Each electrode module (5) also comprises an interface for physically connecting the module with at least one other of the set.

The fuel-cell battery pack for an electric propulsion vehicle includes at least one fuel-cell stack and a casing containing the fuel-cell stack. The casing includes at least one opening providing access to a housing. The fuel-cell stack is inserted into the opening by one of its ends such that one of the two end plates of the fuel-cell stack is located within the housing whilst the other end of the fuel-cell stack protrudes out of the opening. The end plate which is located outside of the casing has a peripheral rim provided to be kept in abutment against the periphery of the opening. Finally, the inlets and outlets for the reactive anode gas, the reactive cathode gas and the cooling fluid are arranged on the end plate which is located outside of the casing.

A fuel cell system and a control method using the same. The fuel cell system includes a propeller wing of a flying object and connected to a rotor, a main radiator and a sub-radiator arranged so that heat of cooling water is dissipated by a downdraft generated by rotation of the propeller wing, and a controller to provide the cooling water to one or both of the main radiator and the sub-radiator based on an operation mode of the flying object.

A fuel cell stack including a separator having a gas equal distribution structure includes a cell formed by sequentially stacking an air electrode, an electrolyte, and a fuel electrode, an air electrode current collector, an air electrode separator, a fuel electrode current collector, and a fuel electrode separator. The air path or the fuel path includes a first channel through which the air or the fuel is introduced from the outside and which is formed to extend to a predetermined length, an auxiliary channel branched off from the first channel so that the air or the fuel moves from the first channel, and a second channel connected to an end portion of the auxiliary channel and formed to extend to a predetermined length so that the air or the fuel moved from the auxiliary channel is moved and discharged to the outside.

A fuel cell stack including a separator having a gas equal distribution structure includes a cell formed by sequentially stacking an air electrode, an electrolyte, and a fuel electrode, an air electrode current collector, an air electrode separator, a fuel electrode current collector, and a fuel electrode separator. The air path or the fuel path includes a first channel through which the air or the fuel is introduced from the outside and which is formed to extend to a predetermined length, an auxiliary channel branched off from the first channel so that the air or the fuel moves from the first channel, and a second channel connected to an end portion of the auxiliary channel and formed to extend to a predetermined length so that the air or the fuel moved from the auxiliary channel is moved and discharged to the outside.