KR101180039B1 - Method For Manufacturing Electrode For Fuel Cell, Manufacturing Device for the Same, and Fuel Cell Comprising Electrode Manufactured by the Same - Google Patents

Abstract

The present invention is a method for manufacturing an electrode for a fuel cell by applying a catalyst slurry including a catalyst, a binder and an ionomer to a gas diffusion layer, the blowing temperature using a blower that can control the blowing speed when applying the catalyst slurry to the gas diffusion layer It relates to a fuel cell electrode manufacturing method comprising a step of maintaining a -10 ℃ to 150 ℃, a manufacturing apparatus used for the production of the fuel cell electrode and a fuel cell system comprising the electrode produced by the manufacturing method. .
According to the present invention, it is possible to provide a fuel cell electrode having less thickness variation of the catalyst layer, less cracking on the surface of the electrode, and no curling of the electrode. Accordingly, the fuel cell system including the electrode according to the present invention is excellent. Performance can be exhibited.

Description

A method for manufacturing an electrode for a fuel cell, a manufacturing apparatus used for manufacturing the same, and a fuel cell system including the electrode manufactured by the same {Method For Manufacturing Electrode For Fuel Cell, Manufacturing Device for the Same, and Fuel Cell Comprising Electrode Manufacturing by the Same}

The present invention relates to a fuel cell system comprising a manufacturing method of an electrode for a fuel cell, a manufacturing apparatus used for producing the fuel cell electrode, and an electrode manufactured by the manufacturing method.

A fuel cell is a power generation system that directly converts chemical energy of hydrogen and oxygen contained in hydrocarbon-based materials such as methanol, ethanol, and natural gas into electrical energy by an electrochemical reaction.

Among the fuel cells, a small fuel cell for a portable device is selected to use a solid electrolyte, and a polymer electrolyte fuel cell (PEEMFC) using hydrogen as a fuel and a direct alcohol fuel cell using a liquid fuel are used. (Direct Alcohol Fuel Cell, DAFC) is the center of the research is in progress.

The fuel cell system may be composed of, for example, a continuous composite such as a membrane-electrode assembly (MEA) and a bipolar plate that collects electricity and supplies fuel.

The membrane-electrode assembly is made by forming an electrode by applying a catalyst layer to the electrolyte membrane. The method of forming the catalyst layer is, for example, to fix a dried electrolyte membrane after pretreatment and to disperse the catalyst. A method of spraying the prepared slurry or a method of applying a catalyst slurry on a support first and then transferring the resulting catalyst layer to the polymer electrolyte membrane.

Among these, a method of spraying a slurry in which a catalyst is dispersed is generally used because the contact between the electrolyte membrane and the catalyst is relatively good, and during application of the fuel cell electrode, the catalyst slurry is applied to a gas diffusion layer. Due to the poor evaporation of the catalyst layer is thick, the thickness variation of the electrode is severe, not only cracks may occur on the surface of the electrode, there is a problem that the drying of the electrode occurs after drying, the efficiency of the fuel cell is reduced.

In addition, in the case of the polymer electrolyte fuel cell (PEMFC), the typical metal loading of the precious metal catalyst at the time of electrode manufacturing is 0.4 mg / cm ^2, but the alcohol fuel cell (DAFC) is generally the case of the anode Since 5 mg / cm ² and cathodes use a lot of metal loading of 3 mg / cm ² , improvement of electrode manufacturing process including catalyst layer is essential.

Therefore, in the embodiments of the present invention, a method for producing an electrode having less thickness variation, less cracking on the surface of an electrode, and no curling phenomenon even with a large amount of metal loading by improving the coating conditions of the catalyst, the method It is an object of the present invention to provide a fuel cell system including an electrode manufacturing apparatus and an electrode manufactured by the manufacturing method.

An embodiment according to the present invention is a method for preparing an electrode for a fuel cell by applying a catalyst slurry prepared by including a catalyst, a binder, and an ionomer to a gas diffusion layer, and applying the catalyst to the gas diffusion layer. It includes a method for manufacturing an electrode for a fuel cell comprising the step of maintaining the blowing temperature to -10 ℃ to 150 ℃ using a blower capable of adjusting the blowing speed.

In addition, an embodiment of the present invention (a) a blowing device in which one or more selected from the group consisting of blowing temperature and blowing speed is controlled; And (b) a production apparatus used for producing an electrode for a fuel cell, including a catalyst slurry coating apparatus.

Further, an embodiment of the present invention is a fuel cell membrane-electrode assembly and an electrolyte membrane-electrode comprising an electrode including a gas diffusion layer and a catalyst layer prepared by the above method, and a polymer electrolyte membrane for a fuel cell positioned between the electrodes. An electricity generator including a bipolar plate positioned on both sides of the assembly; A fuel cell system comprising (b) a fuel supply and (c) an oxygen supply.

Through the method of manufacturing an electrode for a fuel cell of the present invention, it is possible to produce an electrode having a small thickness variation of the catalyst layer, less generation of cracks, and no curling phenomenon of the electrode. In addition, the contact between the catalyst layer and the gas diffusion layer is excellent, it is possible to manufacture an electrode for a fuel cell with increased catalyst utilization. Accordingly, the fuel cell system including the electrode may exhibit excellent efficiency. In addition, the rapid evaporation of the solvent shortens the electrode fabrication time and prevents clogging of the spray gun, making the process very efficient and economical.

1 is a perspective view showing an electrode manufacturing apparatus used in the manufacturing method according to an embodiment of the present invention;
2 is a perspective view showing an electrode manufacturing apparatus used in the manufacturing method according to another embodiment of the present invention;
3 is a perspective view showing only a heat radiation apparatus separated from the electrode manufacturing apparatus;
4 is a cross-sectional view showing an example of an electrode for a fuel cell manufactured according to an embodiment of the present invention;
5 is a cross-sectional view showing an example of a membrane-electrode assembly including an electrode for a fuel cell manufactured according to an embodiment of the present invention;
6 is a configuration diagram showing an example of a fuel cell system including an electrode for a fuel cell manufactured according to an embodiment of the present invention;
7 is a photograph showing the results of measuring the surface crack phenomenon of the electrode for fuel cells manufactured according to the prior art;
8 is a photograph showing a result of measuring a surface crack phenomenon of an electrode for a fuel cell manufactured according to an embodiment of the present invention;
9 is a photograph showing a result of measuring a curl phenomenon of an electrode for a fuel cell manufactured according to the prior art;
10 is a photograph showing a result of measuring a curl phenomenon of an electrode for a fuel cell manufactured according to an embodiment of the present invention;
11 is a graph showing the results of evaluating the performance of the unit battery cell using the fuel cell electrode manufactured according to an embodiment of the present invention.

Regarding the method for producing an electrode coated with a catalyst layer, a general manufacturing process is a method of coating a catalyst slurry on a gas diffusion layer and then drying it later. However, this method has a problem in that the evaporation of the solvent is not smooth, so that the catalyst layer is thick as described above, and the fuel cell efficiency decreases due to intensification of the electrode thickness variation, cracking on the electrode surface, and electrode curling.

In addition, Korean Patent Application Publication Nos. 2006-0084583 and 2006-0066892 disclose a method of rotating an electrode substrate at 10 to 100000 rpm and using a support plate equipped with a hot wire to make rapid evaporation conditions of a solvent contained in a catalyst slurry. The present invention discloses a method of coating a catalyst while increasing the temperature of an electrode substrate placed on a heated support plate.

However, the above-mentioned prior art requires that the support plate be heated to a high temperature in order to induce a smooth evaporation of the solvent, and spray guns by the high temperature delivered to the upper atmosphere by raising the temperature of the entire support plate on which the electrode base is placed. Heat is transferred to the inside of the spray gun, so that the amount of adsorption of the catalyst inside the spray gun can increase, thereby decreasing the catalyst utilization rate and clogging of the injection passage by the catalyst slurry dried inside the spray gun. You can't get it to the fullest.

The inventors of the present application, unlike the prior art as described above, when the catalyst slurry is dried at the same time as the coating on the gas diffusion layer by controlling the air environment on the coating surface by adjusting the blowing speed and the blowing temperature through the blowing device, In order to induce a smooth evaporation condition of the solvent, not only the temperature but also the fast drying condition of the solvent by blowing is used. Therefore, the catalyst utilization rate is high and the blockage inside the spray gun is relatively high. It has been found that not only can provide improved coating conditions without, but also can produce electrodes with improved performance.

The present invention is a method for producing an electrode for a fuel cell by applying a catalyst slurry prepared by including a catalyst, a binder and an ionomer to a gas diffusion layer, the blowing temperature is -10 ℃ to 150 using a blower when the catalyst is applied to the gas diffusion layer Maintaining at ° C.

As a result, the occurrence of cracks on the surface of the electrode can be reduced, and an electrode having a small thickness variation can be easily produced, and an electrode for a fuel cell excellent in contact with the catalyst layer, the gas diffusion layer, or the polymer electrolyte membrane can be manufactured. In addition, the density of the catalyst layer can be easily adjusted, the porosity can be easily adjusted, and the curling phenomenon of the electrode can be prevented. Moreover, the drying rate of the catalyst slurry can be controlled, and the electrode production time can be shortened by the rapid evaporation of the solvent. The rapid evaporation of the solvent allows the electrode to have a uniform catalyst distribution even when using a relatively large amount of solvent compared to the conventional method. Since it is possible to prevent the agglomeration of the catalyst slurry inside the spray gun, it is possible to prevent the spray gun from clogging and reduce the amount of catalyst adsorbed inside the spray gun, thereby increasing the catalyst utilization rate.

The blowing temperature may be adjusted to −10 ° C. to 150 ° C., specifically 30 to 80 ° C., but any temperature within the above defined range may be applied as long as it can achieve a fast evaporation effect of the desired solvent.

At this time, if the blower further comprises the step of adjusting the blowing speed of 0.1 km / h to 1000 km / h, the evaporation of the solvent more smoothly, to eliminate the occurrence of cracks and electrode curl phenomenon on the electrode surface Can be. Any rate within the ranges defined above can be applied, provided that a rapid evaporation effect of the desired solvent can be achieved.

The catalyst slurry may be applied using a conventional slurry coating method and a slurry coating apparatus for this, a screen printing method and a screen printing apparatus for this, a doctor blade method or a spray coating method and a spray spraying apparatus for the same, but is not limited thereto. It doesn't work.

In some cases, the manufacturing method according to the present invention may further include maintaining a heat radiation temperature of 30 ° C to 150 ° C using a heat radiation apparatus when applying the catalyst to the gas diffusion layer.

The thermal radiation temperature may be adjusted to 30 ℃ to 150 ℃, specifically 30 ℃ to 80 ℃, if any of the desired solvent can achieve a rapid evaporation effect, any temperature within the above defined range may be applied.

In one embodiment, the step of adjusting the blowing speed from 0.1 km / h to 1000 km / h using the blower and maintaining the heat radiation temperature 30 ℃ to 150 ℃ using a heat radiation device is performed at the same time Can be. Through this, it is possible to induce a rapid evaporation of the solvent to further increase the effect.

The blower may have any structure as long as it can maintain a desired blowing speed and temperature when applying the catalyst slurry to the gas diffusion layer, but may be combined with the catalyst coating device. While blowing the catalyst slurry in the catalyst coating device, the blowing temperature can be maintained at -10 ° C to 150 ° C while blowing in the combined blower.

In one embodiment, the catalyst in the catalyst slurry prepared comprising the catalyst, binder and ionomer is platinum, palladium, ruthenium, osmium, platinum-ruthenium alloy, platinum-osmium alloy, platinum-palladium alloy, platinum-M alloy, palladium -M alloy, MN macrocycles (MN macrocycles), M-nitride (M-nitride), may be one or two or more selected from the group consisting of the catalyst (chalcogenide compound), but is not limited thereto. It is not.

(1 or 2 or more transition metals selected from the group consisting of M or N = Mo, W, Sn, Co, Cr, Ga, Ti, V, Mn, Fe, Ni, Cu and Zn)

In some cases, the catalyst may be supported on the support, and is preferably a carbon support. The carrier is, for example, Vulcan XC-72 (Valcan XC-72), Vulcan XC-72R (Valcan XC-72R), carbon aerogel, carbon cryogel, carbon cryogel, carbon zero gel xerogel, black paper 2000, conductex 975, denka black, acetylene black, ketjen black, graphite, fullerene (C60), activated carbon , Carbon nano horn (carbon nano horn), carbon nanotube (CNT), may be one or more selected from the group consisting of graphene (graphene) and the like, and may include a material having other conductivity, It is not limited to this.

The binder is one or two selected from the group consisting of polyperfluorosulfonic acid, polytetrafluoroethylene, and fluorinated ethylene-propylen. It may be more than, but is not limited thereto.

The ionomer is not particularly limited as long as it can be generally used in the catalyst slurry of the fuel cell, but may be one commonly used, for example, a poly (perfluorosulfonic acid) solution (Nafion solution of DuPont), and a polyether ether ketone ( polyether ether ketone, polyacetal, polyphenylen oxide, polysulfone, polyether sulfone, polyphenylene sulfide and polycarboxylic acid It may be one or two or more selected from the group consisting of.

The gas diffusion layer to which the catalyst slurry is applied serves to transfer electrons generated in the catalyst layer with the diffusion action of fuel or oxygen, and is preferably made of an electrically conductive carbon material. The electrically conductive carbon material may be, for example, a gas diffusion layer for a conventional fuel cell such as carbon cloth or carbon paper, but the gas diffusion layer used for manufacturing the electrode of the present invention is limited thereto. It doesn't happen.

In some cases, the gas diffusion layer may further include a microporous layer made of a carbon material, and the microporous layer may be a Vulcan XC-72 or a Vulcan XC-72R. 72R), carbon aerogel, carbon cryogel, carbon xerogel, black paper 2000, black tex 2000, conductex 975, denka black, Selected from the group consisting of acetylene black, ketjen black, graphite, fullerene (C60), activated carbon, carbon nano horn, carbon nanotube (CNT), and graphene It may comprise one or two or more carbon materials.

The microporous layer may further include a binder, wherein the binder may be poly (perfluorosulfonic acid), poly (tetrafluoroethylene), and fluorinated ethylene-propylene. propylen) may be one or two or more selected from the group consisting of.

The present invention also comprises: (a) a blowing device in which at least one selected from the group consisting of a blowing temperature and a blowing speed is controlled; And (b) a catalyst slurry coating device. The manufacturing apparatus according to the present invention will be described in detail below with reference to the drawings.

1 to 3 show an example of an electrode manufacturing apparatus including a blower and a catalyst slurry coating device according to an embodiment of the present invention.

1 to 3, the manufacturing apparatus is a blowing device (1) capable of adjusting the blowing temperature and blowing speed or a thermal radiation device (2) capable of adjusting the temperature and the catalyst slurry coating device (3) capable of applying the catalyst slurry (3) And a gas diffusion layer 5 or a polymer electrolyte membrane 5 on the support plate 4, and coating the catalyst slurry on one surface of the gas diffusion layer or the polymer electrolyte membrane, By drying the solvent using the blowing temperature, the blowing speed or the radiant heat of the heat radiation apparatus 2, the thickness variation and the porosity of the catalyst layer can be adjusted.

1 is a perspective view showing an electrode manufacturing apparatus including a blower 1 and a catalyst slurry coating device 3 according to one embodiment of the present invention. In the blower device 1, a heating device 6, for example, a heating wire, may be provided in some cases, so as to control the temperature of the catalyst slurry and the coating surface injected from the catalyst slurry application device 3, the blower temperature And it is desirable to be able to adjust the blowing speed. However, in the electrode manufacturing method of the present invention, the part which functions as a blowing temperature control is not limited only to the heating apparatus 6 in the blower 1.

2 is a perspective view showing a device 7 in which a blower and a catalyst slurry application device are combined into one according to another embodiment of the present invention. As shown in FIG. 2, the slurry may be sprayed in the catalyst slurry coating apparatus, and the rapid drying conditions of the solvent may be established while blowing in the blowing apparatus combined with the catalyst slurry coating apparatus.

3 is a perspective view showing only the heat radiation device 2 separately from the electrode manufacturing apparatus further including a heat radiation device capable of temperature control. As shown in FIG. 3, the heat radiation device includes a temperature control device 8 so as to control the temperature of the coating surface. As the heat radiation, for example, a halogen heater and an infrared heater may be used, but the present invention is not limited thereto. In addition, in the electrode manufacturing method of the present invention, the temperature control function is not limited only to the heat radiation device.

The present invention furthermore comprises: (a) an electrode comprising a gas diffusion layer and a catalyst layer prepared by the production method according to the present invention, and a fuel cell membrane-electrode assembly comprising the polymer electrolyte membrane for a fuel cell positioned between the electrodes and the electrolyte. An electricity generating unit including a positive electrode plate positioned on both sides of the membrane-electrode assembly; A fuel cell system comprising (b) a fuel supply and (c) an oxygen supply.

4 is a cross-sectional view showing an example of an electrode for a fuel cell of the present invention. As shown in FIG. 4, the fuel cell electrode 9 of the present invention includes a gas diffusion layer 11, a fine pore layer 10 formed thereon, and a catalyst layer applied on the gas diffusion layer 11 and the fine pore layer 10. And (12).

5 is a cross-sectional view illustrating an example of a membrane-electrode assembly for a fuel cell. Referring to FIG. 5, the membrane-electrode assembly 13 of the present invention includes a pair of fuel cell electrodes 9 and 9 ′ and a fuel cell polymer electrolyte membrane 14 manufactured by the manufacturing method according to the present invention. The polymer electrolyte membrane 14 is disposed between the fuel cell electrodes 9 and 9 '.

The polymer electrolyte membrane 14 may be formed of, for example, tetrafluoroethylene (polyperfluorosulfonic acid), poly (perfluorocarboxylic acid), and sulfonic acid (sulfonic acid) group. copolymers of tetrafluoro ethylene and fluorovinly ether, defluorinated polyether ketone sulfide, arylketone, poly (2,2 '-(m-phenylene) -5 , 5'-bibenzimidazole) (poly (2,2 '-(m-phenylene) -5,5'-bibenzimidazole)) and poly (2,5-benzimidazole) (poly (2,5-benzimidazole) ), Perfluoro-based polymer, benzimidazole-based polymer, polyimide-based polymer, polyetherimide-based polymer, polyphenylen sulfide-based polymer polysulfone ( polysulfone polymer, polyether sulfone polymer, polyether ketone polymer It may include one or two or more hydrogen ion conductive polymer selected from the group consisting of polyether-ether ketone-based polymer and polyphenyl quinoxaline-based polymer, but is not limited thereto. no.

6 is a configuration diagram illustrating an example of a fuel cell system of the present invention. Referring to FIG. 6, the fuel cell system of the present invention includes an electric generator 17 and a fuel supply unit 18 including a membrane-electrode assembly 15 and positive plates 16 positioned on both sides of the membrane-electrode assembly. And an oxygen supply unit 19.

The fuel cell system may be a direct alcohol fuel cell (DAFC), a polymer electrolyte fuel cell (PEMFC), or a phosphoric acid fuel cell (PAFC), and in the case of a polymer electrolyte fuel cell and a phosphoric acid fuel cell, hydrogen may be It may further include a reformer for generating hydrogen gas from the containing fuel.

Hereinafter, the present invention will be described in more detail based on the following Examples and Experimental Examples, but the scope of the present invention is not limited thereto.

EXAMPLES Preparation of Electrode

Example 1

A catalyst slurry was prepared by mixing a carbon-supported platinum-ruthenium alloy catalyst (PtRu / C catalyst from E-TEK with a metal content of 60% by weight), a poly (perfluorosulfonic acid) solution (Nafion solution from DuPont), and isopropyl alcohol. Prepared.

The gas diffusion layer is placed on the support plate, and the catalyst slurry is coated on the gas diffusion layer by a spray method to induce rapid evaporation conditions of the solvent (wind temperature: 50 ° C, wind speed: 30 km / hr) by using a blower capable of controlling temperature. , A fuel cell electrode having a catalyst layer was prepared so that the metal content per electrode area of 1 cm ² was 5 mg.

Example 2

A catalyst slurry was prepared by mixing a carbon supported platinum catalyst (Pt / C catalyst manufactured by E-TEK having a platinum content of 60% by weight), a poly (perfluorosulfonic acid) solution (Nafion solution manufactured by DuPont), and isopropyl alcohol.

The gas diffusion layer is placed on the support plate, and the catalyst slurry is coated on the gas diffusion layer by a spray method to induce rapid evaporation conditions of the solvent (wind temperature: 50 ° C, wind speed: 30 km / hr) by using a blower capable of controlling temperature. , A fuel cell electrode having a catalyst layer was prepared so that the metal content per electrode area of 1 cm ² was 3 mg.

[Comparative Example]

Comparative Example 1

An electrode was prepared in the same manner as in Example 1, except that the catalyst slurry was first coated on the gas diffusion layer and then dried in the coating process of Example 1.

Comparative Example 2

An electrode was prepared in the same manner as in Example 2, except that the catalyst slurry was first coated on the gas diffusion layer and then dried in the coating process of Example 2.

Experimental Example 1 Measurement of Cracks on the Surface of Electrodes

After preparing the electrode and waiting until there is no change in the weight of the electrode, the crack phenomenon of the electrode surface prepared in Comparative Examples and Examples was measured, and the results are shown in FIGS. 7 and 8, respectively. Comparing FIG. 7, which measures the electrode surface of the comparative example, and FIG. 8, which measured the electrode surface of the example, it may be confirmed that the crack phenomenon was removed from the electrode surface of the example, unlike the electrode surface of the comparative example.

Experimental Example 2 Comparison of Flexure of Electrodes

After preparing the electrode and waiting until there is no change in the weight of the electrode, the results of measuring the curling phenomenon of the electrode prepared in Comparative Examples and Examples are shown in Figures 9 and 10, respectively. In comparison with FIG. 9, which measures the curl of the electrode of the Comparative Example, and FIG. 10, which measured the curl of the electrode of the Example, it may be confirmed that the electrode of the electrode was removed from the electrode of the Example, unlike the electrode of the Comparative Example.

Experimental Example 3 Comparison of Unit Battery Performance of Electrode

The MEA using the electrodes manufactured by the Example and the comparative example was produced and the performance of the unit battery cell was evaluated. An anode was used to prepare an electrode on which a catalyst layer was formed so as to have a metal content of 5 mg per 1 cm ² of electrode using 60 wt% of PtRu / C (E-TEK) catalyst, and 60 wt as a cathode. An electrode with a catalyst layer was prepared using 3% Pt / C (E-TEK,) catalyst so that the metal content per electrode area of 1 cm ² was 3 mg. As the electrolyte membrane, Nafion 117 was used, the electrode area was 4.5 cm ² , the cell temperature was 80 ° C., and the anode used 1 M EtOH as fuel and the cathode used O ₂ as fuel. The performance evaluation results of the unit battery cells are shown in FIG. 11. Referring to FIG. 11, it can be seen that the unit cell using the electrode manufactured according to the embodiment has improved performance.

Those skilled in the art to which the present invention pertains will be able to perform various applications and modifications within the scope of the present invention based on the above contents.

Claims (18)

A method of manufacturing an electrode for a fuel cell by applying a catalyst slurry including a catalyst, a binder, and an ionomer to a gas diffusion layer,
While simultaneously blowing the catalyst slurry to the gas diffusion layer,
A method of manufacturing an electrode for a fuel cell comprising the step of adjusting the blowing speed to 0.1 km / h to 1000 km / h using a blower capable of adjusting the blowing speed. The method of claim 1,
The blower is capable of controlling the blowing temperature, the method of manufacturing an electrode for a fuel cell, characterized in that the blowing temperature is maintained at -10 ℃ to 150 ℃. The method of claim 1,
The catalyst slurry is a method of manufacturing an electrode for a fuel cell, characterized in that applied to the gas diffusion layer by a spray coating method, a screen printing method or a doctor blade method. The method of claim 1,
The method of manufacturing a fuel cell electrode further comprising the step of maintaining a heat radiation temperature 30 ℃ to 150 ℃ using a heat radiation device when applying the catalyst to the gas diffusion layer. The method of claim 4, wherein
The thermal radiation temperature is maintained at 30 ℃ to 80 ℃, the blowing temperature is maintained at 30 ℃ to 80 ℃ manufacturing method of an electrode for a fuel cell. The method of claim 1,
The blower is a method of manufacturing an electrode for a fuel cell, characterized in that coupled with the catalyst coating device. The method of claim 1,
The catalyst is platinum, palladium, ruthenium, osmium, platinum-ruthenium alloy, platinum-osmium alloy, platinum-palladium alloy, platinum-M alloy, palladium-M alloy, MN macrocycles, M-nitride ( M-nitride), a method for producing an electrode for a fuel cell, which is one or two or more selected from the group consisting of a charcogenide compound catalyst.
(1 or 2 or more transition metals selected from the group consisting of M or N = Mo, W, Sn, Co, Cr, Ga, Ti, V, Mn, Fe, Ni, Cu and Zn) The method of claim 1,
The catalyst is a method for producing an electrode for a fuel cell, characterized in that supported on the carrier. The method of claim 1,
The binder is one or two selected from the group consisting of polyperfluorosulfonic acid, polytetrafluoroethylene, and fluorinated ethylene-propylen. The manufacturing method of the above electrode for fuel cells. The method of claim 1,
The gas diffusion layer is a method of manufacturing an electrode for a fuel cell is at least one selected from the group consisting of carbon cloth and carbon paper. The method of claim 1,
The gas diffusion layer further comprises a microporous layer made of a carbon material. The method according to claim 8 or 11, wherein
The carrier or microporous layer may be a Vulcan XC-72 (Valcan XC-72), a Vulcan XC-72R (Valcan XC-72R), a carbon aerogel, a carbon cryogel, a carbon zero gel xerogel, black paper 2000, conductex 975, denka black, acetylene black, ketjen black, graphite, fullerene (C60), activated carbon The carbon nano horn (carbon nano horn), carbon nanotubes (CNT), graphene (graphene), a method for producing an electrode for a fuel cell, characterized in that made of one or two or more carbon materials selected from the group consisting of. The method of claim 11,
The microporous layer is one selected from the group consisting of poly (perfluorosulfonic acid), poly (tetrafluoroethylene), and fluorinated ethylene-propylen, or A method of manufacturing a fuel cell electrode comprising two or more kinds of binders. (a) a blowing device in which the blowing temperature and the blowing speed are controlled and blown to the gas diffusion layer; And
(b) A manufacturing apparatus, comprising a catalyst slurry coating apparatus, used for producing the fuel cell electrode according to claim 1, wherein the catalyst slurry is applied to the gas diffusion layer and blown at the same time. 15. The method of claim 14,
The blower device is characterized in that combined with the catalyst slurry coating device. 15. The method of claim 14,
The manufacturing apparatus further comprises a heat radiation apparatus capable of temperature control. delete delete

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