Disclosed is a method for manufacturing a large-area thin-film solid oxide fuel cell, the method including: preparing an anode support slurry, an anode functional layer slurry, an electrolyte slurry, and a buffer layer slurry for tape casting; preparing an anode support green film, an anode functional layer green film, an electrolyte green film, and a buffer layer green film by tape casting the slurries onto carrier films; staking the green films, followed by hot press and warm iso-static press (WIP), to prepare a laminated body; and co-sintering the laminated body.

The present disclosure relates to a method of manufacturing an electrolyte membrane for fuel cells capable of effectively removing hydrogen and/or air crossing over. Specifically, the method includes coating a slurry including at least an ionomer on a substrate to manufacture an ion transfer layer, manufacturing a laminate including the substrate and the ion transfer layer, and providing a pair of laminates to form an electrolyte membrane, wherein the ion transfer layer has a catalyst region formed at one side thereof based on a width-direction center line thereof, the catalyst region including a catalyst.

A manufacturing apparatus of a membrane-electrode assembly for a fuel cell includes: an electrode film sheet unwinder for supplying upper and lower electrode film sheets having upper and lower electrode films with anode and cathode layers along a predetermined transfer path, an electrolyte membrane sheet unwinder that supplies an electrolyte membrane sheet, a driving bonding roll that has an engraved portion and an embossing portion, a driven bonding roll that is to be moved in the vertical direction toward the driving bonding roll, a film rewinder that recovers, by winding, the upper and lower electrode films, and a position aligning unit that aligns the positions of the anode layer and the cathode layer while switching the running directions of the upper and lower electrode film sheets and the upper and lower electrode films.

The present disclosure relates to a composite electrolyte membrane and a method of manufacturing the same. A catalyst composite layer in the composite electrolyte membrane uniformly includes a catalyst and an antioxidant, whereby it is possible to inhibit generation of hydrogen peroxide by side reaction. In addition, the catalyst composite layer is formed as a separate layer, whereby the catalyst composite layer is instead degraded, greatly inhibiting membrane degradation even in the case in which radicals attack an ionomer due to small side reaction. Furthermore, it is possible to control the position of the catalyst composite layer including the catalyst and the antioxidant by adjusting the thicknesses of a second ion exchange layer and the catalyst composite layer, whereby it is possible to protect a specific degradation position, and therefore it is possible to efficiently improve membrane durability.

Methods and compositions for making fuel cell components are described. In one embodiment, the method comprises providing a substrate, and forming or adhering an electrode on the substrate, wherein the forming includes depositing an aqueous mixture comprising water, a water-insoluble component, a catalyst, and an ionomer. The water-insoluble component comprises a water-insoluble alcohol, a water-insoluble carboxylic acid, or a combination thereof. The use of such water-insoluble components results in a stable liquid medium with reduced reticulation upon drying, reduced dissolution of the substrate, and reduced penetration of the pores of the substrate.

The present disclosure includes a system, method, and device related to controlling brakes of a towed vehicle. A brake controller system includes a brake controller that controls the brakes of a towed vehicle based on acceleration. The brake controller is in communication with a speed sensor. The speed sensor determines the speed of a towing vehicle or a towed vehicle. The brake controller automatically sets a gain or boost based on the speed and acceleration.

An object of the present invention is to provide, in the manufacture of a membrane-catalyst assembly including a polymer electrolyte membrane and a catalyst layer bonded to the polymer electrolyte membrane, a method that achieves both the relaxation of thermocompression bonding conditions and the improvement of adhesion between the catalyst layer and the electrolyte membrane with high productivity. A main object of the present invention is to provide a method of manufacturing a membrane-catalyst assembly including an electrolyte membrane and a catalyst layer bonded to the electrolyte membrane, the method including a liquid application step of applying a liquid to a surface of the catalyst layer before bonding, and a thermocompression bonding step of bonding, to the electrolyte membrane, the catalyst layer to which the liquid is applied by thermocompression bonding.

A catalyst layer comprising: (i) a platinum-containing electrocatalyst; (ii) oxygen evolution reaction electrocatalyst; (iii) one or more carbonaceous materials selected from the group consisting of graphite, nanofibres, nanotubes, nanographene platelets and low surface area, heat-treated carbon blacks wherein the one or more carbonaceous materials do not support the platinum-containing electrocatalyst; and (iv) proton-conducting polymer and its use in an electrochemical device is disclosed.

A catalyst layer comprising: (i) a platinum-containing electrocatalyst; (ii) oxygen evolution reaction electrocatalyst; (iii) one or more carbonaceous materials selected from the group consisting of graphite, nanofibres, nanotubes, nanographene platelets and low surface area, heat-treated carbon blacks wherein the one or more carbonaceous materials do not support the platinum-containing electrocatalyst; and (iv) proton-conducting polymer and its use in an electrochemical device is disclosed.

Improved catalyst layers for use in fuel cell membrane electrode assemblies, and methods for making such catalyst layers, are provided. Catalyst layers can comprise structured units of catalyst, catalyst support, and ionomer. The structured units can provide for more efficient electrical energy production and/or increased lifespan of fuel cells utilizing such membrane electrode assemblies. Catalyst layers can be directly deposited on exchange membranes, such as proton exchange membranes.