ES2141578T3 - Electrodos difusores de gas, cataliticamente activos, que comprenden una estructura fibrosa no tejida. - Google Patents
Electrodos difusores de gas, cataliticamente activos, que comprenden una estructura fibrosa no tejida.Info
- Publication number
- ES2141578T3 ES2141578T3 ES97300921T ES97300921T ES2141578T3 ES 2141578 T3 ES2141578 T3 ES 2141578T3 ES 97300921 T ES97300921 T ES 97300921T ES 97300921 T ES97300921 T ES 97300921T ES 2141578 T3 ES2141578 T3 ES 2141578T3
- Authority
- ES
- Spain
- Prior art keywords
- fibers
- catalysting
- electrode
- sup
- gas diffusion
- 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 abstract 6
- 238000009792 diffusion process Methods 0.000 abstract 3
- 229920000642 polymer Polymers 0.000 abstract 3
- 239000000126 substance Substances 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229920000049 Carbon (fiber) Polymers 0.000 abstract 2
- -1 POLYETHYLENE Polymers 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000004917 carbon fiber Substances 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229920000557 Nafion® Polymers 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- UGMPCOZULZMORK-UHFFFAOYSA-N [F].C=C.CC=C Chemical compound [F].C=C.CC=C UGMPCOZULZMORK-UHFFFAOYSA-N 0.000 abstract 1
- UQSQSQZYBQSBJZ-UHFFFAOYSA-N fluorosulfonic acid Chemical compound OS(F)(=O)=O UQSQSQZYBQSBJZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
Classifications
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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
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8807—Gas diffusion layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
- C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
- C25B11/031—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
- H01M4/8605—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
- H01M4/8817—Treatment of supports before application 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
- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
- H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
- H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
-
- 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
- H01M4/928—Unsupported catalytic particles; loose particulate catalytic materials, e.g. in fluidised state
-
- 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
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- 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
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8684—Negative 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
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8689—Positive electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0082—Organic polymers
-
- 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
- H01M4/921—Alloys or mixtures with metallic elements
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Composite Materials (AREA)
- Inert Electrodes (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Fuel Cell (AREA)
- Catalysts (AREA)
Abstract
EL OBJETO DE LA PRESENTE INVENCION ES SUMINISTRAR UN ELECTRODO DE DIFUSION DE GAS TANTO CON ESTABILIDAD DIMENSIONAL COMO CON FLEXIBILIDAD INCREMENTADAS Y QUE PUEDA POR LO TANTO PRODUCIRSE A UN COSTE MENOR. UN OBJETO ADICIONAL DE LA INVENCION ES SUMINISTRAR UN PROCESO DE MANUFACTURACION MEJORADO QUE SEA CAPAZ DE PRODUCIR UN GRAN NUMERO DE ELECTRODOS Y MEAS A BAJO COSTE UNITARIO, EN GRANDES VOLUMENES Y CON UN GRAN RENDIMIENTO. DE ESTA FORMA, SE SUMINISTRA UN ELECTRODO DE DIFUSION DE GAS QUE COMPRENDE UNA RED NO ENTRETEJIDA DE FIBRAS, UNO O MAS COMPONENTES CATALIZADORES Y AL MENOS UNA SUSTANCIA POLIMERICA QUE SE CARACTERIZA EN QUE EL COMPONENTE CATALIZADOR ESTA EMBEBIDO DENTRO DE LA RED DE FIBRAS. GENERALMENTE, LA RED NO ENTRETEJIDA DE FIBRAS TIENE UNA DENSIDAD MENOR DE 0.3 G/CM{SUP,3}, ADECUADAMENTE MENOR DE 0.2 G/CM{SUP,3} Y PREFERIBLEMENTE MENOR DE 0.1 G/CM{SUP,3}. LAS FIBRAS QUE SON ADECUADAS PARA SU USO EN LA PRESENTE INVENCION INCLUYEN FIBRAS DE CARBONO, DE VIDRIO, DE POLIMERO, DE METALO CERAMICAS, PREFERIBLEMENTE FIBRAS DE CARBONO, VIDRIO, METAL O CERAMICAS, TIPICAMENTE CON DIAMETROS EN LA BANDA DE ENTRE 0.2 {MI}M A 50 {MI}M Y CON LONGITUDES DE ENTRE 0.05MM Y 300MM, ADECUADAMENTE 0.5MM A 150MM. SI SE UTILIZAN FIBRAS DIFERENTES A LAS FIBRAS DE CARBONO U OTRAS FIBRAS ELECTRICAMENTE CONDUCTORAS ES NECESARIO QUE EL COMPONENTE CATALIZADOR COMPRENDA CARBONO Y OPCIONALMENTE UNO O MAS COMPONENTES CATALIZADORES DIFERENTES TALES COMO METAL O UN METAL SOPORTADO SOBRE CARBONO PARA QUE LA ESTRUCTURA FINAL DEL ELECTRODO SEA ELECTRICAMENTE CONDUCTORA. LAS SUBSTANCIAS POLIMERICAS ACTUAN COMO UN AMALGAMADOR PARA MANTENER LA CAPA DE ELECTRODOS UNIDA. DEPENDIENDO DE LA SUSTANCIA POLIMERICA UTILIZADA ESTA TAMBIEN PUEDE ACTUAR PARA SUMINISTRAR PROPIEDADES ESTRUCTURALES ESENCIALES DEL ELECTRODO, TALES COMO EL CONTROL DEL EQUILIBRIO HIDROFOBICO/HIDROFILICO. EJEMPLOS DE DICHOS POLIMEROS INCLUYEN POLITETRAFLUOROETILENEO (PTFE), ETILENO PROPILENOFLUORADO (FEP), POLIETILENO, POLIPROPILENO, ETILENOPROPILENO. EL MATERIAL POLIMERICO TAMBIEN PUEDE ACTUAR PARA SUMINISTRAR EL CAMINO DE CONDUCCION IONICA EN ELECTRODO. TALES POLIMEROS CONDUCTORES DE PROTONES SON POR EJEMPLO LOS MATERIALES DEL ACIDO PERFLUOROSULFONICO, PRODUCIDOS POR "E.I. DUPONT DE NEMOURS", REFERENCIADOS COMO "NAFION". LOS ELECTRODOS DE DIFUSION DE GAS DE LA PRESENTE INVENCION SON DE USO EN DISPOSITIVOS ELECTROQUIMICOS, INCLUYENDO BATERIAS DE METAL-AIRE, SENSORES ELECTROQUIMICOS DE GAS, Y EN ELECTROSINTESIS, Y, PARTICULARMENTE EN CELULAS DE COMBUSTIBLE.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9604191.8A GB9604191D0 (en) | 1996-02-28 | 1996-02-28 | Water transport in electrodes |
GBGB9626802.4A GB9626802D0 (en) | 1996-12-23 | 1996-12-23 | Gas diffusion electrodes |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2141578T3 true ES2141578T3 (es) | 2000-03-16 |
Family
ID=26308820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97300921T Expired - Lifetime ES2141578T3 (es) | 1996-02-28 | 1997-02-13 | Electrodos difusores de gas, cataliticamente activos, que comprenden una estructura fibrosa no tejida. |
Country Status (8)
Country | Link |
---|---|
US (2) | US5865968A (es) |
EP (2) | EP0791974B2 (es) |
JP (1) | JP3576739B2 (es) |
AU (1) | AU717536B2 (es) |
BR (1) | BR9701086A (es) |
CA (1) | CA2198553C (es) |
DE (2) | DE69709784T2 (es) |
ES (1) | ES2141578T3 (es) |
Families Citing this family (90)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3583897B2 (ja) * | 1997-04-11 | 2004-11-04 | 三洋電機株式会社 | 燃料電池 |
GB9708365D0 (en) * | 1997-04-25 | 1997-06-18 | Johnson Matthey Plc | Proton conducting membranes |
US6103077A (en) * | 1998-01-02 | 2000-08-15 | De Nora S.P.A. | Structures and methods of manufacture for gas diffusion electrodes and electrode components |
JPH11204114A (ja) | 1998-01-20 | 1999-07-30 | Daikin Ind Ltd | 電極材料 |
GB2337150B (en) * | 1998-05-07 | 2000-09-27 | Nat Power Plc | Carbon based electrodes |
JP3888057B2 (ja) * | 1998-05-27 | 2007-02-28 | 東レ株式会社 | 固体高分子型燃料電池用炭素繊維紙 |
DE19837669A1 (de) * | 1998-08-20 | 2000-03-09 | Degussa | Katalysatorschicht für Polymer-Elektrolyt-Brennstoffzellen |
GB9822576D0 (en) * | 1998-10-16 | 1998-12-09 | Johnson Matthey Plc | Membrane |
AU759819B2 (en) * | 1999-01-22 | 2003-05-01 | University Of Southern California | Improved membrane electrode assembly for a fuel cell |
GB9903320D0 (en) * | 1999-02-15 | 1999-04-07 | Johnson Matthey Plc | Substrates |
GB9905950D0 (en) | 1999-03-16 | 1999-05-05 | Johnson Matthey Plc | Substrates |
GB9914023D0 (en) | 1999-06-17 | 1999-08-18 | Johnson Matthey Plc | Gas diffusion substrate and electrode |
GB9914492D0 (en) | 1999-06-22 | 1999-08-25 | Johnson Matthey Plc | Non-woven fibre webs |
GB9914499D0 (en) * | 1999-06-22 | 1999-08-25 | Johnson Matthey Plc | Non-woven fibre webs |
DE20022262U1 (de) | 1999-07-07 | 2001-08-09 | Sgl Carbon Ag | Elektrodensubstrat für elektrochemische Zellen |
JP4433518B2 (ja) * | 1999-07-30 | 2010-03-17 | アイシン精機株式会社 | 固体高分子電解質型燃料電池 |
US6479188B1 (en) | 1999-10-13 | 2002-11-12 | The Gillette Company | Cathode tube and method of making the same |
CN1205685C (zh) | 1999-11-17 | 2005-06-08 | 尼电源系统公司 | 具有硅基片的燃料电池 |
EP1240680A2 (en) | 1999-11-18 | 2002-09-18 | Proton Energy Systems, Inc. | High differential pressure electrochemical cell |
CN1307376A (zh) | 2000-01-27 | 2001-08-08 | 钟馨稼 | 一种可反复充放电的铬氟锂固体动力电池 |
JP3612518B2 (ja) * | 2000-01-27 | 2005-01-19 | 三菱レイヨン株式会社 | 多孔質炭素電極基材およびその製造方法並びに炭素繊維紙 |
GB0006429D0 (en) | 2000-03-17 | 2000-05-03 | Johnson Matthey Plc | Electrochemical cell |
JP4470271B2 (ja) * | 2000-03-31 | 2010-06-02 | 株式会社エクォス・リサーチ | 燃料電池および燃料電池装置 |
AU2001250491A1 (en) | 2000-04-17 | 2001-10-30 | Johnson Matthey Pulic Limited Company | Gas diffusion substrate |
DE10027339A1 (de) * | 2000-06-02 | 2001-12-06 | Bayer Ag | Dimensionsstabile Gasdiffusionselektrode |
GB0016752D0 (en) | 2000-07-08 | 2000-08-30 | Johnson Matthey Plc | Electrochemical structure |
GB0016750D0 (en) * | 2000-07-08 | 2000-08-30 | Johnson Matthey Plc | Improved material for electrode manufacture |
AU2001279308A1 (en) * | 2000-07-25 | 2002-02-05 | Apollo Energy Systems, Incorporated | Electrodes for alkaline fuel cells with circulating electrolyte |
US6740220B1 (en) * | 2000-07-28 | 2004-05-25 | The United States Of America As Represented By The Secretary Of The Navy | Electrocatalytic cathode device of palladium and iridium on a high density or porous carbon support and a method for making such a cathode |
DE10050512A1 (de) * | 2000-10-11 | 2002-05-23 | Freudenberg Carl Kg | Leitfähiger Vliesstoff |
DE10052190B4 (de) * | 2000-10-21 | 2009-10-22 | BDF IP Holdings Ltd., Vancouver | Gasdiffusionselektrode, Membranelektrodenanordnung, Verfahren zur Herstellung einer Gasdiffusionselektrode und Verwendung einer Membranelektrodenanordnung |
GB0027119D0 (en) | 2000-11-07 | 2000-12-20 | Johnson Matthey Plc | Gas diffusion substrate |
US6733639B2 (en) * | 2000-11-13 | 2004-05-11 | Akzo Nobel N.V. | Electrode |
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US20030091891A1 (en) * | 2001-01-16 | 2003-05-15 | Tomoaki Yoshida | Catalyst composition for cell, gas diffusion layer, and fuel cell comprising the same |
US6797422B2 (en) | 2001-01-25 | 2004-09-28 | Gas Technology Institute | Air-breathing direct methanol fuel cell with metal foam current collectors |
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ITMI20010402A1 (it) * | 2001-02-28 | 2002-08-28 | De Nora Elettrodi Spa | Nuova composizione elettrocatalitica per catodo depolarizzato ad ossigeno |
US6500319B2 (en) * | 2001-04-05 | 2002-12-31 | Giner Electrochemical Systems, Llc | Proton exchange membrane (PEM) electrochemical cell having an integral, electrically-conductive, compression pad |
GB0112021D0 (en) | 2001-05-17 | 2001-07-11 | Johnson Matthey Plc | Substrate |
EP1263073A1 (en) * | 2001-05-31 | 2002-12-04 | Asahi Glass Co., Ltd. | Membrane-electrode assembly for solid polymer electrolyte fuel cells and process for its production |
US7601262B1 (en) | 2001-06-22 | 2009-10-13 | Argonide Corporation | Sub-micron filter |
US7147761B2 (en) * | 2001-08-13 | 2006-12-12 | Mine Safety Appliances Company | Electrochemical sensor |
US7094492B2 (en) * | 2001-10-11 | 2006-08-22 | Honda Giken Kogyo Kabushiki Kaisha | Electrode for polymer electrolyte fuel cell |
US6716549B2 (en) * | 2001-12-27 | 2004-04-06 | Avista Laboratories, Inc. | Fuel cell having metalized gas diffusion layer |
US7144476B2 (en) | 2002-04-12 | 2006-12-05 | Sgl Carbon Ag | Carbon fiber electrode substrate for electrochemical cells |
US20040001991A1 (en) * | 2002-07-01 | 2004-01-01 | Kinkelaar Mark R. | Capillarity structures for water and/or fuel management in fuel cells |
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WO2005024981A2 (en) * | 2003-09-03 | 2005-03-17 | Hollingsworth & Vose Company | Fuel cell gas diffusion layer |
WO2005027244A2 (en) * | 2003-09-10 | 2005-03-24 | Hollingsworth & Vose Company | Fuel cell gas diffusion layer |
DE10342199B4 (de) * | 2003-09-13 | 2007-02-08 | Daimlerchrysler Ag | Verfahren zur Herstellung einer Gasdiffusionsschicht für eine Brennstoffzelle |
KR100696462B1 (ko) * | 2003-09-26 | 2007-03-19 | 삼성에스디아이 주식회사 | 연료전지용 전극 확산층 |
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GB0413324D0 (en) | 2004-06-15 | 2004-07-21 | Johnson Matthey Plc | Gas diffusion substrate |
GB0419062D0 (en) | 2004-08-27 | 2004-09-29 | Johnson Matthey Plc | Platinum alloy catalyst |
US7629071B2 (en) * | 2004-09-29 | 2009-12-08 | Giner Electrochemical Systems, Llc | Gas diffusion electrode and method of making the same |
GB0423812D0 (en) * | 2004-10-27 | 2004-12-01 | Johnson Matthey Plc | Fuel cell stack |
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EP1780822B1 (en) * | 2005-11-01 | 2012-01-18 | Tomoegawa Co., Ltd. | Gas diffusion electrode, membrane-electrode assembly, polymer electrolyte fuel cell, and methods for producing |
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-
1997
- 1997-02-13 EP EP97300921A patent/EP0791974B2/en not_active Expired - Lifetime
- 1997-02-13 DE DE69709784T patent/DE69709784T2/de not_active Expired - Fee Related
- 1997-02-13 ES ES97300921T patent/ES2141578T3/es not_active Expired - Lifetime
- 1997-02-13 EP EP99109991A patent/EP0942482B1/en not_active Expired - Lifetime
- 1997-02-13 DE DE69701103T patent/DE69701103T3/de not_active Expired - Lifetime
- 1997-02-18 AU AU14737/97A patent/AU717536B2/en not_active Ceased
- 1997-02-19 US US08/802,556 patent/US5865968A/en not_active Expired - Fee Related
- 1997-02-26 CA CA002198553A patent/CA2198553C/en not_active Expired - Fee Related
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- 1997-02-28 JP JP04625897A patent/JP3576739B2/ja not_active Expired - Fee Related
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- 1998-11-12 US US09/189,842 patent/US6010606A/en not_active Expired - Lifetime
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AU717536B2 (en) | 2000-03-30 |
EP0942482A3 (en) | 2000-08-16 |
AU1473797A (en) | 1997-09-04 |
CA2198553A1 (en) | 1997-08-28 |
DE69709784D1 (de) | 2002-02-21 |
EP0942482B1 (en) | 2001-11-21 |
US6010606A (en) | 2000-01-04 |
JP3576739B2 (ja) | 2004-10-13 |
EP0791974B2 (en) | 2005-08-17 |
JPH09326256A (ja) | 1997-12-16 |
CA2198553C (en) | 2008-10-28 |
EP0791974A1 (en) | 1997-08-27 |
DE69701103T2 (de) | 2000-06-15 |
EP0942482A2 (en) | 1999-09-15 |
DE69701103T3 (de) | 2006-02-02 |
US5865968A (en) | 1999-02-02 |
DE69701103D1 (de) | 2000-02-17 |
BR9701086A (pt) | 1998-11-24 |
EP0791974B1 (en) | 2000-01-12 |
DE69709784T2 (de) | 2002-08-08 |
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