A fuel cell arrangement with a membrane electrode assembly is provided which comprises a cathode, an anode and a membrane arranged between the cathode and the anode, with an active area essentially predetermined by the membrane electrode assembly, and with a sealing structure laterally assigned to the membrane electrode assembly. The sealing structure comprises a sealing tongue extending into or over an edge region outside the active area for axially covering in a gas-tight manner a media channel formed in an adjacent bipolar plate and located in the edge region. A unit cell for a fuel cell stack with such a fuel cell arrangement is also provided.

A separator is stacked on each of both surfaces of a membrane electrode assembly to form a fuel cell. This separator includes a base part extending in the form of a surface, and a bead continuous with the base part and protruding from the base part in a stacking direction. The bead includes, in plan view, a straight section extending straight and a curved section continuous with the straight section and curved from the straight section. In the separator, the height from the base part to a top part of the curved section is configured to be lower than the height from the base part to a top part of the straight section.

A separator is stacked on each of both surfaces of a membrane electrode assembly to form a fuel cell. This separator includes a base part extending in the form of a surface, and a bead continuous with the base part and protruding from the base part in a stacking direction. The bead includes, in plan view, a straight section extending straight and a curved section continuous with the straight section and curved from the straight section. In the separator, the height from the base part to a top part of the curved section is configured to be lower than the height from the base part to a top part of the straight section.

Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.

Disclosed are a method for manufacturing an electrode, an electrode manufactured thereby, a membrane-electrode assembly including the electrode, and a fuel cell containing the membrane-electrode assembly. The method includes the steps of: preparing an electrode forming composition by mixing a catalyst with an ionomer; applying a low-frequency acoustic energy to the electrode forming composition to perform resonant vibratory mixing so as to coat the ionomer on the surface of the catalyst; and coating the electrode forming composition to manufacture an electrode.

A gas liquid separator of a fuel cell system includes a first channel forming section forming a first channel for allowing an oxygen-containing exhaust gas to flow in a horizontal direction, and a second channel forming section forming a second channel connected to the first channel. The first channel forming section is provided with an inlet for guiding the oxygen-containing exhaust gas into the first channel. The second channel forming section is provided with an outlet for discharging the oxygen-containing exhaust gas flowing through the second channel. The second channel includes a bent channel for guiding upward the oxygen-containing exhaust gas guided from the first channel.

A series of catalyst inks comprising n-propanol and water are disclosed. The impact of these inks on structure and morphology of catalyst layers is discussed, as well as applications of the catalyst ink compositions in polymer electrolyte membrane fuel cells.

A series of catalyst inks comprising n-propanol and water are disclosed. The impact of these inks on structure and morphology of catalyst layers is discussed, as well as applications of the catalyst ink compositions in polymer electrolyte membrane fuel cells.

Disclosed are a method of heat treating a membrane electrode assembly, in which a first membrane electrode assembly or the like is positioned between a first member and a second member and heat treatment is performed as at least one of the first member and the second member being a heating member, and also in which variation in the temperature of the membrane electrode assembly at different roll positions is decreased and interfacial bonding between the layers in the membrane electrode assembly is enhanced. Thus, the quality of the membrane electrode assembly, such as the durability and performance thereof, may be improved, the yield thereof may be increased, and the amount of heat treatment may be efficiently increased, thereby reducing costs through mass heat treatment and decreasing the rate of processing of the membrane electrode assembly.

Disclosed are a method of heat treating a membrane electrode assembly, in which a first membrane electrode assembly or the like is positioned between a first member and a second member and heat treatment is performed as at least one of the first member and the second member being a heating member, and also in which variation in the temperature of the membrane electrode assembly at different roll positions is decreased and interfacial bonding between the layers in the membrane electrode assembly is enhanced. Thus, the quality of the membrane electrode assembly, such as the durability and performance thereof, may be improved, the yield thereof may be increased, and the amount of heat treatment may be efficiently increased, thereby reducing costs through mass heat treatment and decreasing the rate of processing of the membrane electrode assembly.