CN1938888A - Fuel cell - Google Patents
Fuel cell Download PDFInfo
- Publication number
- CN1938888A CN1938888A CNA2004800427764A CN200480042776A CN1938888A CN 1938888 A CN1938888 A CN 1938888A CN A2004800427764 A CNA2004800427764 A CN A2004800427764A CN 200480042776 A CN200480042776 A CN 200480042776A CN 1938888 A CN1938888 A CN 1938888A
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- Prior art keywords
- anode
- fuel cell
- negative electrode
- cathode side
- intermediate layer
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0232—Metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0223—Composites
- H01M8/0228—Composites in the form of layered or coated products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0241—Composites
- H01M8/0245—Composites in the form of layered or coated products
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/22—Fuel cells in which the fuel is based on materials comprising carbon or oxygen or hydrogen and other elements; Fuel cells in which the fuel is based on materials comprising only elements other than carbon, oxygen or hydrogen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
Abstract
Fuel cell including electrolyte, an anode and a cathode at opposite sides of the electrolyte, an anode side separator and a cathode side separator at outer sides of the anode and the cathode respectively, and a medium layer between the cathode and the cathode side separator for prevention of corrosion of the cathode side separator, thereby improving a performance of an electric generating performance of the fuel cell.
Description
Technical field
The present invention relates to fuel cell, relate in particular to the fuel cell that can improve power generation performance.
Background technology
Fuel cell is a kind of energy conversion device, is used for by chemical reaction the chemical energy of fuel being directly changed into electric energy.Different with general battery, as long as the fueling fuel cell need not charge with regard to continuing generating.Recently, because energy-efficient and environmental friendliness characteristic, people are primarily focused on the fuel cell.
Usually, fuel cell has two electrodes, promptly is arranged on the anode and the negative electrode of electrolytical opposition side.Usually, on the outside of anode anode side baffle is arranged, it has fuel channel and supporting anodes, and has cathode side separator on the outside of negative electrode, and it has air duct and supports negative electrode.At the anode place hydrogen taking place is the electrochemical reaction of fuel, and at the negative electrode place oxygen taking place is the electrochemical reaction of oxidant, and moves owing to producing electronics at this moment, so produce electric energy.
Fuel cell can use various fuel, for example LNG, LPG, methyl alcohol, gasoline or the like.Generally, it is hydrogen that fuel is purified through desulfurization processing, reforming reaction and hydrogen purification processes at the fuel reformer place, and uses with gas form.The fuel of aqueous solution state is for example with solid-state BH4
-Dissolving becomes aqueous solution state as fuel (borohydride fuel battery).Borohydride fuel battery (BFC) can omit fuel reformer, because when not having fuel reformer, the fuel of aqueous solution state directly offers anode, and at the anode place reforming reaction takes place, thereby can simplify fuel cell system.
Simultaneously, according to electrolytical kind, phosphorous fuel cell, molten carbonate fuel cell, alkaline fuel cell, Solid Oxide Fuel Cell and polymer-membrane fuel battery or the like are arranged.
The fuel cell system of correlation technique is described hereinafter with reference to Fig. 1.
With reference to Fig. 1, by petrolift 3 fuel is offered fuel cell 1 from tanks 5, and air is offered fuel cell 1 by air pump 7.Fuel cell 1 is element cell (unit cell) or element cell heap.
The example of the fuel cell of correlation technique is described hereinafter with reference to Fig. 2 to Fig. 4.Fig. 2 to Fig. 4 shows a monoreactant battery separately.
Opposition side at electrolyte 10 has anode 30 and negative electrode 20.In the outside of anode 30 and negative electrode 20 dividing plate 40 and dividing plate 50 are arranged respectively.Anode 30 and negative electrode 20 are porous, and contain the Pt catalyst usually.
Therefore, anode side baffle 50 is arranged, and cathode side separator 40 is arranged in the outside of negative electrode 20 in the outside of anode 30.Dividing plate 40,50 is supporting anodes 30 and negative electrodes 20 respectively, and have usually between the spacer 44 and the passage 46,56 that forms between the spacer 54.Various channel forms can be arranged.When element cell when piling up, dividing plate 40 and dividing plate 50 are used to isolate each element cell.Simultaneously, in the outside of dividing plate 40 and dividing plate 50, independently collector plate can be arranged respectively.
Usually, electrolyte is the amberplex of polymeric material.Generally the dielectric film that can buy is the Nafion film of company of Du Pont (Du Pont), and this film is as hydrionic transmission body (transfer body), and simultaneously by means of this film, anti-block contacts with hydrogen.Anode 30 and negative electrode 20 are supporters of porous carbon resin or carbon cloth normally, are attached with catalyst on it. Dividing plate 40,50 generally is to be formed by material with carbon element of densification (dense carbon material) or Ni/SUS material.
The mode of operation of fuel cell will be described below.
Offer the fuel of fuel cell and air flow through anode 30 and negative electrode 20, and following chemical reaction takes place.
Anode: BH
4 -+ 8OH
-→ BO
2 -+ 6H
2O+8e
-E
0=-1.24V
Negative electrode: 2O
2+ 4H
2O+8e
-→ 8OH
-E
0=0.4V
Amount to: BH
4 -+ 2O
2→ 2H
2O+BO
2 -E
0=1.62V.
Simultaneously, in order to make BH
4 -Stabilizing solution generally adds a certain amount of Na, to cause the side reaction that produces hydrogen at anode 30 places.That is to say, 2H takes place at anode 30 places
2O+NaBH
4→ NaBO
2+ 4H
2Reaction.
Simultaneously, need keep improving the generate output and the performance of fuel cell under the constant situation of fuel cell size.Because although fuel cell has above-mentioned advantage, in order to obtain desirable generate output and performance, it is bigger that the size of fuel cell becomes usually, and this has limited the use of fuel cell, and use inconvenient.
Therefore, there has been the suggestion of the generate output and the performance of many raising fuel cells.For example, Japanese kokai publication hei patent No.H10-228913 proposes electrode and partition part ground gold-plated, reducing the contact resistance between electrode and the dividing plate, thereby improves fuel cell performance.In this case, the suggestion dividing plate is made of metal, and in order to prevent corrosion, dividing plate is made by stainless steel.Yet although the suggestion of various raising fuel cell power generation capacity and performance is effective to a certain extent, effect is general and not obvious, thereby still needs to have the fuel cell of better power generation performance.
Summary of the invention
That is intended to address the above problem the purpose of this invention is to provide a kind of fuel cell, and this fuel cell can improve generate output and performance and not increase the size of fuel cell.
Purpose of the present invention can realize that this fuel cell comprises: electrolyte by a kind of fuel cell is provided; Anode and negative electrode are positioned at this electrolytical opposition side; Anode side baffle and cathode side separator lay respectively at the outside of described anode and negative electrode; And the intermediate layer, between described negative electrode and cathode side separator, be used to prevent that this cathode side separator is corroded.
In other scheme of the present invention, a kind of fuel cell is provided, comprising: electrolyte; Anode and negative electrode are positioned at this electrolytical opposition side; Anode side baffle is positioned at the outside of described anode; Cathode side separator is positioned at the outside of described negative electrode; Perforated support member between described negative electrode and described cathode side separator, is used to support this negative electrode; And the support component intermediate layer, between described negative electrode and described perforated support member, be used to prevent that this perforated support member is corroded.
In another program of the present invention, a kind of fuel cell is provided, comprising: electrolyte; Anode and negative electrode are positioned at this electrolytical opposition side; Anode side baffle and cathode side separator lay respectively at the outside of described anode and negative electrode; And the intermediate layer, between described anode and anode side baffle, be used to prevent that this anode side baffle is corroded.
Therefore, the power generation performance of fuel cell is improved, thereby can improve generate output and do not increase the size of fuel cell.
Description of drawings
To comprise accompanying drawing and be in order to provide further understanding of the present invention, accompanying drawing shows embodiments of the invention, and is used from specification one and explains principle of the present invention.
In the accompanying drawings;
Fig. 1 shows the block diagram of the fuel cell system of correlation technique;
Fig. 2 has schematically shown the exploded perspective view of the fuel cell of correlation technique;
Fig. 3 has schematically shown the plane graph of an example of cathode side separator among Fig. 2;
Fig. 4 shows the sectional view of Fig. 2;
Fig. 5 shows among Fig. 2 the circuit of fuel cell and represents;
Fig. 6 shows the voltage drop curves figure in the fuel cell;
Fig. 7 has schematically shown the sectional view of fuel cell according to the preferred embodiment of the invention;
Fig. 8 and Fig. 9 all show the curve chart of comparison of generate output of the fuel cell of expression the present invention and correlation technique; And
Figure 10 has schematically shown according to the present invention the sectional view of the fuel cell of another preferred embodiment.
Embodiment
Describe the preferred embodiments of the present invention now in detail, the example is shown in the drawings.When describing embodiment, the part identical with the fuel battery part of correlation technique will be represented with identical title and Reference numeral, and omission is to the detailed description of these parts.
The following preferred embodiment of describing fuel cell of the present invention with reference to Fig. 7.
Similar with correlation technique, fuel cell of the present invention comprises electrolyte 10, anode 30, negative electrode 20, anode side baffle 50 and cathode side separator 40.Though in having the stacked fuel cell of a plurality of stacked unit cells, one side of dividing plate 40 or dividing plate 50 contacts with anode 30, and opposite side contacts with negative electrode 20 simultaneously, but for convenience of description, will use the expression way of anode side baffle 50 and cathode side separator 50 in the following description.
According to discovering of the inventor, for improving fuel cell performance, prevent that dividing plate from preventing that particularly cathode side separator 40 is corroded, be very important.Because as shown in Figure 5, when fuel cell power generation, ion moves to from anode → electrolyte → negative electrode, and electronics moves to from anode (r2) → anode side baffle (rl) → cathode side separator (r4) → negative electrode (r3), and wherein all mobile routes of electronics all are resistance in certain.In addition, as shown in Figure 6, the I-V characteristic curve of fuel cell, if interior resistance increases, then fuel cell performance descends.Simultaneously,, during operation of fuel cells, corrode at cathode side separator 40 places usually, and the rust that forms in the case is the major reason that interior resistance increases according to discovering of the inventor.That is to say that correlation technique of the present invention is not known, prevent that it is one of most important factor that improves fuel battery performance that dividing plate 40 is corroded.Therefore, described in background technology, Japanese kokai publication hei patent No.H10-228913 proposes partly gold-plated at the contact surface place of electrode and dividing plate, thereby reduces the contact resistance between electrode and the dividing plate simply, and uses stainless steel to be used to prevent corrosion as separator material.Yet, generally be difficult to by using metal partion (metp) to avoid corrosion effectively, particularly the corrosion of cathode side separator can cause problem.That is, according to discovering of the inventor, for improving fuel battery performance, reliable anticorrosion ratio prevents that simply contact resistance is more effective.
Therefore, the present invention proposes to prevent that the dividing plate corrosion is to improve fuel battery performance.All be suitable for though can prevent any method of cathode side separator corrosion effectively, the method in following examples is simple and effective.
With reference to Fig. 7, between cathode side separator 40 and negative electrode 40, intermediate layer 300 is arranged, be used to prevent cathode side separator 40 corrosion.Though intermediate layer 300 can be provided separately, preferred, intermediate layer 300 is to be similar to the coating that the material selected the material of negative electrode 20 is made from those ionization tendencies.Because according to discovering of the inventor, be derived from the voltage difference of the ionization tendency difference generation of negative electrode 20 and cathode side separator 40 in the main cause of cathode side separator 40 places corrosion.
Simultaneously, require coating 300 on the cathode side separator 40 to be positioned on the contact surface 302 of contact negative electrode 20 at least and on the basal surface 304 of passage, and be preferably placed on the wall surface 306 of passage.
Simultaneously, in general, because negative electrode 20 contains the Pt catalyst, so coating 300 can be made by materials such as the Pt with or similar ionization tendency identical with Pt, gold, copper, nickel, consider factors such as manufacturing cost and technology, preferred coatings 300 is made of gold.
On the other hand, may corrode at anode side baffle 50 places.Therefore, preferred, on anode side baffle 50, form the intermediate layer (not shown), for example coating is corroded to prevent anode side baffle 50.Certainly, same preferred in the case, coating shows with anode 30 and does not have the material in the material of voltage difference to make by being selected from those.
With reference to Fig. 8, experimental result as the inventor, have at fuel cell under the situation of the cathode side separator 40 that contains Pt, if other condition is identical, the fuel cell that confirms to have gold plating and the fuel cell of the correlation technique that does not have coating be specific energy raising power generation performance nearly 50% mutually.Because the experimental result of various fuel cells is expressed similar trend, so an experimental result only is shown in Fig. 8 for convenience.
In addition, as shown in Figure 9, principle of the present invention is applicable to the fuel cell of other form.For example, as shown in figure 10, between negative electrode 20 and cathode side separator 40, perforated support member 100 can be arranged, for example mesh parts (mesh member).Support component 100 is also corroded, and preferably prevents this corrosion.That is to say, gold-platedly on support component 100 reduce interior resistance, and show performance and improve.Certainly, if cathode side separator 40 by gold-plated then more effective.
Simultaneously, between anode 30 and the anode side baffle 50 anode support member 80 can be arranged, identical principle is applicable to anode support member 80.
Certainly, the principle of above embodiment is not limited to BFC type fuel cell, but is equally applicable to other fuel cell.
Industrial applicibility
The corrosion that effectively prevents cathode side separator and/or anode side baffle place can reduce fuel cell in Resistance finally improves power generation performance and capacity.
Claims (12)
1. fuel cell comprises:
Electrolyte;
Anode and negative electrode are positioned at this electrolytical opposition side;
Anode side baffle and cathode side separator lay respectively at the outside of described anode and described negative electrode; And
The intermediate layer between described negative electrode and described cathode side separator, is used to prevent that this cathode side separator is corroded.
2. fuel cell according to claim 1, wherein said intermediate layer are the coatings on the described negative electrode.
3. fuel cell according to claim 2, wherein said coating are to be formed by a kind of like this material, and this material is selected from the material that those ionization tendencies are similar to negative electrode.
4. according to claim 2 or 3 described fuel cells, wherein said negative electrode contains the Pt catalyst, and described intermediate layer is formed by gold.
5. fuel cell according to claim 1 and 2 also comprises the intermediate layer between described anode and described anode side baffle, is used to prevent that this anode side baffle is corroded.
6. fuel cell comprises:
Electrolyte;
Anode and negative electrode are positioned at this electrolytical opposition side;
Anode side baffle is positioned at the outside of described anode;
Cathode side separator is positioned at the outside of described negative electrode;
Perforated support member between described negative electrode and described cathode side separator, is used to support this negative electrode; And
The support component intermediate layer between described negative electrode and described perforated support member, is used to prevent that this perforated support member is corroded.
7. fuel cell according to claim 6, wherein said support component intermediate layer are the coatings on the described support component.
8. fuel cell according to claim 7, wherein said coating are to be formed by a kind of like this material, and this material is selected from the material that those ionization tendencies are similar to negative electrode.
9. fuel cell according to claim 6 also comprises the intermediate layer between described cathode side separator and described perforated support member, is used to prevent that this cathode side separator is corroded.
10. according to one of them described fuel cell of claim 6-9, wherein said negative electrode contains the Pt catalyst, and described intermediate layer is formed by gold.
11., also comprise according to one of them described fuel cell of claim 6-9:
Perforated support member between described anode and described anode side baffle is used to support this anode; And
Support component intermediate layer between described anode and described perforated support member is used to prevent that this perforated support member is corroded.
12. a fuel cell comprises:
Electrolyte;
Anode and negative electrode are positioned at this electrolytical opposition side;
Anode side baffle and cathode side separator lay respectively at the outside of described anode and described negative electrode; And
The intermediate layer between described anode and anode side baffle, is used to prevent that this anode side baffle is corroded.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2004/000892 WO2005101559A1 (en) | 2004-04-19 | 2004-04-19 | Fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1938888A true CN1938888A (en) | 2007-03-28 |
Family
ID=35150276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800427764A Pending CN1938888A (en) | 2004-04-19 | 2004-04-19 | Fuel cell |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1738429A1 (en) |
| CN (1) | CN1938888A (en) |
| WO (1) | WO2005101559A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1978582A1 (en) * | 2007-04-05 | 2008-10-08 | Atotech Deutschland Gmbh | Process for the preparation of electrodes for use in a fuel cell |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3854682B2 (en) * | 1997-02-13 | 2006-12-06 | アイシン高丘株式会社 | Fuel cell separator |
| JP2000058080A (en) * | 1998-08-12 | 2000-02-25 | Mitsubishi Materials Corp | Separator for fuel cell and manufacture thereof |
| JP2000164228A (en) * | 1998-11-25 | 2000-06-16 | Toshiba Corp | Separator for solid high molecular electrolyte fuel cell and manufacture thereof |
| JP2000353531A (en) * | 1999-06-08 | 2000-12-19 | Sumitomo Electric Ind Ltd | Separator for solid high polymer fuel cell and manufacture thereof |
| US6372376B1 (en) * | 1999-12-07 | 2002-04-16 | General Motors Corporation | Corrosion resistant PEM fuel cell |
| JP3606514B2 (en) * | 2000-04-13 | 2005-01-05 | 松下電器産業株式会社 | Stacked fuel cell system |
| JP2002025579A (en) * | 2000-07-12 | 2002-01-25 | Matsushita Electric Ind Co Ltd | High polymer molecule electrolyte fuel cell |
| US6531238B1 (en) * | 2000-09-26 | 2003-03-11 | Reliant Energy Power Systems, Inc. | Mass transport for ternary reaction optimization in a proton exchange membrane fuel cell assembly and stack assembly |
| JP3857873B2 (en) * | 2000-11-09 | 2006-12-13 | 三洋電機株式会社 | FUEL CELL SEPARATOR, ITS MANUFACTURING METHOD, AND FUEL CELL |
| JP2002358974A (en) * | 2001-03-26 | 2002-12-13 | Hitachi Cable Ltd | Separator for solid polymer fuel cell and its manufacturing method |
| JP2003045452A (en) * | 2001-07-31 | 2003-02-14 | Toyota Motor Corp | Fuel cell |
| JP2003123786A (en) * | 2001-10-10 | 2003-04-25 | Yuasa Corp | Membrane/electrode binder for direct methanol fuel cell |
| JP2003123782A (en) * | 2001-10-17 | 2003-04-25 | Showa Denko Kk | Separator for fuel cell, its manufacturing method, and fuel cell |
| JP3906975B2 (en) * | 2001-11-09 | 2007-04-18 | 株式会社ジーエス・ユアサコーポレーション | Polymer electrolyte fuel cell |
| KR100525974B1 (en) * | 2002-08-07 | 2005-11-03 | 마쯔시다덴기산교 가부시키가이샤 | Fuel cell |
-
2004
- 2004-04-19 CN CNA2004800427764A patent/CN1938888A/en active Pending
- 2004-04-19 EP EP04728294A patent/EP1738429A1/en not_active Withdrawn
- 2004-04-19 WO PCT/KR2004/000892 patent/WO2005101559A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| EP1738429A1 (en) | 2007-01-03 |
| WO2005101559A1 (en) | 2005-10-27 |
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