A catalyst-coated membrane (CCM) for use in a water electrolyser, having a laminate structure comprising: a first layer comprising a first membrane component having a cathode catalyst layer disposed on a first face thereof; a second layer comprising a second membrane component having an anode catalyst layer disposed on a first face thereof; and an intermediate layer disposed between the first and second layers, comprising a third membrane component having a recombination catalyst layer disposed on a first face thereof is disclosed. The CCM is useful within a water electrolyser. The recombination catalyst layer reduces the risk associated with hydrogen crossover and allows thinner membranes with lower resistance to be used.

Disclosed are methods manufacturing a four-layer membrane electrode assembly integrated with an adhesive film. The methods include a step of preparing a three-layer membrane electrode assembly comprising a first electrode and a second electrode by attaching the first electrode to a first surface of an electrolyte membrane, attaching the second electrode to a second surface of the electrolyte membrane, and joining a first gas diffusion layer to the first electrode; and a step of attaching an adhesive film to the three-layer membrane electrode assembly by preparing the adhesive film by attaching an upper protective film to an upper surface of the adhesive film and a lower protective film to a lower surface of the adhesive film, removing the lower protective film, and attaching the adhesive film to an outer peripheral region of the membrane electrode assembly including the second electrode.

Disclosed are methods manufacturing a four-layer membrane electrode assembly integrated with an adhesive film. The methods include a step of preparing a three-layer membrane electrode assembly comprising a first electrode and a second electrode by attaching the first electrode to a first surface of an electrolyte membrane, attaching the second electrode to a second surface of the electrolyte membrane, and joining a first gas diffusion layer to the first electrode; and a step of attaching an adhesive film to the three-layer membrane electrode assembly by preparing the adhesive film by attaching an upper protective film to an upper surface of the adhesive film and a lower protective film to a lower surface of the adhesive film, removing the lower protective film, and attaching the adhesive film to an outer peripheral region of the membrane electrode assembly including the second electrode.

The subject matter described herein generally relates to a fuel cell power module and air handling system and methods of operating such a system to enable robust exhaust energy extraction for high altitude.

The subject matter described herein generally relates to a fuel cell power module and air handling system and methods of operating such a system to enable robust exhaust energy extraction for high altitude.

Disclosed are a catalyst complex and a method of manufacturing the same. The catalyst complex may be manufactured by uniformly depositing metal catalyst particles on pretreated support particles through an atomic layer deposition process using a fluidized-bed reactor, which may be then uniformly dispersed throughout the ionomer solution. As such, manufacturing costs may be reduced due to the use of a small amount of metal catalyst particles and the durability of an electrolyte membrane and OCV may increase. Further disclosed are a method of manufacturing the catalyst complex, an electrolyte membrane including the catalyst complex, and a method of manufacturing the electrolyte membrane.

An indicator is provided in a vehicle for indicating necessity of change of a fuel vapor absorber in a venting line of a vehicle tank, especially a methanol tank for fuel cell vehicles.

An object of the present invention is to provide a membrane for a redox flow battery which is prevented from being curled and exhibits high power efficiency, a membrane electrode assembly for a redox flow battery, a cell for a redox flow battery, and a redox flow battery. The object can be attained by a membrane for a redox flow battery, comprising a first ion-exchange resin layer, an anion-exchange resin layer containing an anion-exchange compound, and a second ion-exchange resin layer in the presented order, wherein a value obtained by dividing a thickness of the first ion-exchange resin layer by a thickness of the second ion-exchange resin layer is 0.7 or more and 1.3 or less, and a thickness of the anion-exchange resin layer is 0.02 μm or larger and 3 μm or smaller.

The present invention provides an electrode catalyst which has excellent catalytic activity, and which can contribute to reducing the cost of a polymer electrolyte fuel cell (PEFC). According to the present invention, an electrode catalyst includes a hollow carrier including nanopores having a pore size of 1 to 20 nm, and a plurality of catalyst particles. The catalyst particles are supported both inside and outside the nanopores of the carrier, and comprise (zero-valent) Pt, and when a particle size distribution analysis of the catalyst particles is carried out using a three-dimensional reconstructed image obtained by electron beam tomography measurement employing STEM, the conditions of formula (S1): 100×(N10/N20)≤8.0 are satisfied (in the formula, N10 is the number of noble metal particles not in contact with a pore having a pore size of 1 nm or more, and N20 is the number of catalyst particles supported inside the nanopores of the carrier).

The present disclosure provides a fibrous rutile-type oxide that contains an oxygen atom, a nitrogen atom, and a transition metal atom. The transition metal atom is at least one atom selected from the group consisting of a titanium atom, a tantalum atom, a niobium atom, and a zirconium atom. The rutile-type oxide is represented by the chemical formula MO.sub.xN.sub.y, where M represents the transition metal atom. In the chemical formula, x satisfies x = 2 - (y +j) (j ≥ 0).