WO2001022508A1 - Anode für eine brennstoffzelle und verfahren zu deren herstellung - Google Patents
Anode für eine brennstoffzelle und verfahren zu deren herstellung Download PDFInfo
- Publication number
- WO2001022508A1 WO2001022508A1 PCT/DE2000/003169 DE0003169W WO0122508A1 WO 2001022508 A1 WO2001022508 A1 WO 2001022508A1 DE 0003169 W DE0003169 W DE 0003169W WO 0122508 A1 WO0122508 A1 WO 0122508A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anode
- fuel cell
- carrier
- support
- active catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- H01M4/8605—Porous electrodes
-
- 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
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
-
- 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
- H01M4/88—Processes of manufacture
- H01M4/8817—Treatment of supports before application of the catalytic active composition
- H01M4/8821—Wet proofing
-
- 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
- H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
-
- 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
Definitions
- the invention relates to an anode for a fuel cell with an active catalyst layer.
- the invention relates to a method for producing such an anode.
- a membrane or matrix containing an acid serves as the electrolyte.
- a catalyst such as e.g. Platinum is used, which in the known systems (cf. K. Ledjeff: Fuel cell overview (p. 26) in K. Ledjeff, "Fuel cells” Müller Verlag, Heidelberg 1995) is preferably applied to carbon powder as a carrier.
- a carbon paper which is preferably hydrophobic, is pressed between the catalyst layer and the bipolar plate, which conducts the current from and to the cell, in order to optimally collect and conduct the current there are still large electricity losses in the collection and management of the electricity, which adversely affect the overall efficiency of the fuel cell.
- the object of the invention is to provide an anode in which the current conduction is improved and to provide a method for producing such an anode.
- the object is achieved by the features of claim 1.
- An associated manufacturing process is the subject of claim 6. Further developments of the anode and the manufacturing process are specified in the respective dependent claims.
- an anode for a fuel cell contains an active catalyst layer, with a support for the active catalyst layer being made of a metal and / or an alloy which is corrosion-resistant in the potential interval of the hydrogen electrode, the active catalyst for oxidation located on its surface.
- active catalyst material is applied to a support which is corrosion-resistant in the potential interval of the hydrogen electrode.
- the invention results in a high conductivity of the support and a low sheet resistance of the active catalyst and / or support layer, which have the effect that the current conduction from the anode to the bipolar plate is decisively improved.
- An anode for a fuel cell is formed from an electrically conductive carrier and an active catalyst layer.
- the catalyst layer is followed by a bipolar plate.
- Active catalyst is catalyst material that is applied to one of the electrodes for oxidation or reduction so that the fuel cell reaction takes place. Can be found. At the anode, the active catalyst is preferably platinum and / or an alloy containing platinum with other metals of the noble metal group, such as ruthenium, rhodium, palladium, osmium and / or iridium.
- An anode for a fuel cell comprises an active catalyst layer which is directly connected to the electrolyte and which is gas-permeable, a reaction chamber for the anode gas and an electrical conductor, e.g. a bipolar plate, which also serves to seal the reaction chamber from the environment.
- the bipolar plate also referred to as "pole plate” for short, delimits a first fuel cell from the following second fuel cell, where a plurality of fuel cells form a fuel cell stack, which is usually referred to in the technical terminology as a stack.
- the transport of electricity from and to the cell usually takes place via the bipolar plate.
- a carbon paper is provided to reinforce the line between the active catalyst layer and the bipolar plate.
- the carrier consists of silver and / or copper.
- the catalyst is electrodeposited on the carrier.
- the carrier is in the form of a powder which is coated.
- the carrier is sputtered with catalyst.
- the catalyst is deposited on the carrier by wet chemistry.
- the carrier powder is mixed with the catalyst material.
- the catalyst material is mixed with the catalyst material.
- a hydrophobic polymer e.g. Teflon, applied for better connection of the catalyst to the carrier.
- the invention improves power transportation within the
- Fuel cell by replacing the catalyst support on the anode, which previously consisted of carbon powder that was unsatisfactorily conductive with electronically conductive metal.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Composite Materials (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001525780A JP2003510765A (ja) | 1999-09-23 | 2000-09-12 | 燃料電池用アノード及びその製造方法 |
| EP00967566A EP1218953A1 (de) | 1999-09-23 | 2000-09-12 | Anode für eine brennstoffzelle und verfahren zu deren herstellung |
| CA002385560A CA2385560A1 (en) | 1999-09-23 | 2000-09-12 | Pem fuel cell and process for producing an anode for a pem fuel cell of this type |
| US10/105,549 US20030027035A1 (en) | 1999-09-23 | 2002-03-25 | PEM fuel cell and process for producing an anode for such a PEM fuel cell |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19945712.3 | 1999-09-23 | ||
| DE19945712A DE19945712A1 (de) | 1999-09-23 | 1999-09-23 | Anode für eine Brennstoffzelle und Herstellungverfahren dazu |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/105,549 Continuation US20030027035A1 (en) | 1999-09-23 | 2002-03-25 | PEM fuel cell and process for producing an anode for such a PEM fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001022508A1 true WO2001022508A1 (de) | 2001-03-29 |
Family
ID=7923101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2000/003169 Ceased WO2001022508A1 (de) | 1999-09-23 | 2000-09-12 | Anode für eine brennstoffzelle und verfahren zu deren herstellung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20030027035A1 (de) |
| EP (1) | EP1218953A1 (de) |
| JP (1) | JP2003510765A (de) |
| CA (1) | CA2385560A1 (de) |
| DE (1) | DE19945712A1 (de) |
| WO (1) | WO2001022508A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4810725B2 (ja) * | 2000-09-27 | 2011-11-09 | ソニー株式会社 | ガス拡散性触媒電極及びその製造方法、並びに電気化学デバイス |
| WO2004102704A1 (ja) * | 2003-05-14 | 2004-11-25 | Matsushita Electric Industrial Co., Ltd. | 固体酸化物型燃料電池とその製造方法 |
| US20050282061A1 (en) * | 2004-06-22 | 2005-12-22 | Campbell Stephen A | Catalyst support for an electrochemical fuel cell |
| US8465858B2 (en) * | 2004-07-28 | 2013-06-18 | University Of South Carolina | Development of a novel method for preparation of PEMFC electrodes |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997050141A1 (de) * | 1996-06-26 | 1997-12-31 | Siemens Aktiengesellschaft | Anode für eine direkt-methanol-brennstoffzelle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3428490A (en) * | 1962-08-29 | 1969-02-18 | Sun Oil Co | Noble metal aluminum alloys as catalysts for fuel cell electrodes |
-
1999
- 1999-09-23 DE DE19945712A patent/DE19945712A1/de not_active Withdrawn
-
2000
- 2000-09-12 WO PCT/DE2000/003169 patent/WO2001022508A1/de not_active Ceased
- 2000-09-12 EP EP00967566A patent/EP1218953A1/de not_active Withdrawn
- 2000-09-12 CA CA002385560A patent/CA2385560A1/en not_active Abandoned
- 2000-09-12 JP JP2001525780A patent/JP2003510765A/ja not_active Withdrawn
-
2002
- 2002-03-25 US US10/105,549 patent/US20030027035A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997050141A1 (de) * | 1996-06-26 | 1997-12-31 | Siemens Aktiengesellschaft | Anode für eine direkt-methanol-brennstoffzelle |
Non-Patent Citations (1)
| Title |
|---|
| ANDERSON E ET AL: "ROLE OF TITANIUM CARBIDE IN ACTIVITY ENHANCEMENT OF PLATINUM AS PHOSPHORIC ACID FUEL CELL CATALYST", JOURNAL OF THE ELECTROCHEMICAL SOCIETY,US,ELECTROCHEMICAL SOCIETY. MANCHESTER, NEW HAMPSHIRE, VOL. 133, NR. 3, PAGE(S) 114-115, ISSN: 0013-4651, XP000038906 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1218953A1 (de) | 2002-07-03 |
| US20030027035A1 (en) | 2003-02-06 |
| JP2003510765A (ja) | 2003-03-18 |
| CA2385560A1 (en) | 2001-03-29 |
| DE19945712A1 (de) | 2001-04-05 |
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