A negative electrode active material slurry is applied to one surface of a strip-shaped negative electrode core so as to form multiple lines of the negative electrode active material slurry, the lines extending in an X direction and being spaced from each other in a Y direction. Subsequently, while keeping the negative electrode core aloft, first hot air is blown toward the negative electrode core from at least a lower side in a vertical direction, and then, while keeping the negative electrode core aloft, first cooling air having a lower temperature than the first hot air is blown toward the negative electrode core from at least the lower side in the vertical direction so as to decrease the temperature of the negative electrode core to 40° C. or lower.

A manufacturing method for a catalyst layer for a fuel cell includes: preparing a nozzle group to output ultrasonically-vibrated air, the nozzle group being formed of an aggregate of unit nozzles each controlled in at least one of the temperature of the ultrasonically-vibrated air to be output from the unit nozzle, an internal pressure in the unit nozzle, and the position of the unit nozzle in an output direction in which the ultrasonically-vibrated air is to be output; coating a sheet-like base material with catalyst ink containing a solvent, an ionomer, and a catalyst supporting material on which a catalyst is supported; and drying the catalyst ink by blowing the ultrasonically-vibrated air from the nozzle group on the catalyst ink applied to the base material. The drying includes controlling at least one of the temperature, the internal pressure, and the position for each of the unit nozzles independently.

The invention includes a method of making a catalytic electrode for a metal-air cell in which a carbon-catalyst composite is produced by heating a manganese compound in the presence of a particulate carbon material to form manganese oxide catalyst on the surfaces of the particulate carbon, and then adding virgin particulate carbon material to the carbon-catalyst composite to produce a catalytic mixture that is formed into a catalytic layer. A current collector and an air diffusion layer are added to the catalytic layer to produce the catalytic electrode. The catalytic electrode can be combined with a separator and a negative electrode in a cell housing including an air entry port through which air from outside the container can reach the catalytic electrode.

Provided is a low-cost electrochemical element that has excellent reliability and durability. A substrate with an electrode layer for a metal-supported electrochemical element includes a metal support and an electrode layer formed on/over the metal support, and the electrode layer has a region with a surface roughness of 1.0 μm or less.

A solid oxide fuel cell includes an anode that includes a porous layer including an electron conductive ceramics and an oxygen ion conductive ceramics, the porous layer of the anode being impregnated with an anode catalyst, an electrolyte layer that is provided on the anode and includes a solid oxide having oxygen ion conductivity, and a cathode that is provided on the electrolyte layer and has a porous layer including an electron conductive ceramics and an oxygen ion conductive ceramics, the porous layer of the cathode being impregnated with a cathode catalyst.

Disclose is a method of manufacturing catalyst ink for a fuel cell, and particularly the method includes removing eluted transition metal from a noble-metal/transition-metal alloy catalyst.

The present disclosure relates to a fuel cell catalyst, a fuel cell electrode including the same, and a membrane-electrode assembly including the same. In one embodiment, the fuel cell catalyst includes: a support including a titanium oxynitride represented by the following Formula 1: TiO.sub.1-yN.sub.y, wherein 0.05<y<0.9; and an active material supported on the support.

Disclosed is a catalyst for oxygen reduction and evolution reactions. The catalyst is in the form of nickel sulfide (NiS.sub.2) nanosheets. NiS.sub.2 molecules are cross-linked and oriented two-dimensionally in the NiS.sub.2 nanosheets. Also disclosed is a method for producing the catalyst.

The present disclosure relates to a cathode for a lithium air battery and a method of manufacturing the same, and more particularly to a method of manufacturing a cathode for a lithium air battery, in which a hollow structure including a carbon material having a nitrogen functional group is synthesized through electrospinning of a thermally decomposable polymer, coating with a nitrogen-containing polymer and heat treatment, and is utilized without a binder as a cathode carbon material for a lithium air battery, thereby increasing the performance and lifespan of a lithium air battery.

An apparatus of manufacturing an elastomeric cell frame for a fuel cell may include, as the apparatus of manufacturing the elastomeric cell frame including an insert in which a membrane electrode assembly and a gas diffusion layer have been bonded, and a sheet-like elastomeric frame made of a thermoplastic elastomer (TPE) integrated into an external area of the insert to form the unit cell of the fuel cell, a lower jig module accommodated so that the overlapping area, in which the insert and the elastomeric frame overlap at a predetermined area, is accommodated, and an upper jig module mounted above the lower jig module to provide heat and pressure to the overlapping area to thermally bond an interface between the insert and the elastomeric frame in the overlapping area.