BR0014590A - Eletrodo eletroquìmico para célula de combustìvel - Google Patents
Eletrodo eletroquìmico para célula de combustìvelInfo
- Publication number
- BR0014590A BR0014590A BR0014590-4A BR0014590A BR0014590A BR 0014590 A BR0014590 A BR 0014590A BR 0014590 A BR0014590 A BR 0014590A BR 0014590 A BR0014590 A BR 0014590A
- Authority
- BR
- Brazil
- Prior art keywords
- metal foam
- foam substrate
- binder
- cathode
- fuel cell
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title abstract 2
- 239000000758 substrate Substances 0.000 abstract 5
- 239000006262 metallic foam Substances 0.000 abstract 4
- 239000011230 binding agent Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 238000009792 diffusion process Methods 0.000 abstract 1
- 229920002313 fluoropolymer Polymers 0.000 abstract 1
- 239000004811 fluoropolymer Substances 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000005245 sintering Methods 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
-
- 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
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/80—Porous plates, e.g. sintered carriers
- H01M4/808—Foamed, spongy materials
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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
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8605—Porous electrodes
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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
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8652—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites as mixture
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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
- H01M4/8817—Treatment of supports before application of the catalytic active composition
- H01M4/8821—Wet proofing
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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
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
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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
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8846—Impregnation
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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
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8864—Extrusion
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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
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8882—Heat treatment, e.g. drying, baking
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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
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8882—Heat treatment, e.g. drying, baking
- H01M4/8885—Sintering or firing
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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
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8896—Pressing, rolling, calendering
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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
- H01M4/90—Selection of catalytic material
- H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
- H01M4/9083—Catalytic material supported on carriers, e.g. powder carriers on carbon or graphite
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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
- H01M12/00—Hybrid cells; Manufacture thereof
- H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
- H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
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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
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8689—Positive electrodes
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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
- H01M4/8647—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
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- 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
- Y02E60/10—Energy storage using batteries
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Inert Electrodes (AREA)
- Hybrid Cells (AREA)
Abstract
"ELETRODO ELETROQUìMICO PARA CéLULA DE COMBUSTìVEL". Um catódio eletroquímico inclui um substrato de espuma de metal poroso, formado com uma rede de poros interconectados. Uma camada ativa e uma camada de difusão de gás microporosa hidrofóbica são ambas dispostas em uma ou mais superfícies do substrato de espuma de metal. O substrato de espuma de metal serve como o coletor de corrente do catódio. A camada microporosa é um material plástico como um fluoropolímero (isto é, PTFE) . O catódio também inclui uma microestrutura em partículas reforçada por ligação relativamente forte provida por sinterização de um aglutinante polimérico dentro da porosidade interconectada tridimensional do substrato de espuma de metal. As camadas reativas são preferivelmente fabricadas do mesmo material que o aglutinante. Isso permite vantajosamente que uma única operação de prensagem por rolo impregne simultaneamente o aglutinante no substrato e forme as camadas reativas sobre o mesmo.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/415,449 US6368751B1 (en) | 1999-10-08 | 1999-10-08 | Electrochemical electrode for fuel cell |
PCT/US2000/027497 WO2001028011A1 (en) | 1999-10-08 | 2000-10-05 | Electrochemical electrode for fuel cell |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0014590A true BR0014590A (pt) | 2002-06-11 |
Family
ID=23645726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0014590-4A BR0014590A (pt) | 1999-10-08 | 2000-10-05 | Eletrodo eletroquìmico para célula de combustìvel |
Country Status (11)
Country | Link |
---|---|
US (1) | US6368751B1 (pt) |
EP (1) | EP1230696A4 (pt) |
JP (1) | JP2003511828A (pt) |
KR (1) | KR20020043610A (pt) |
CN (1) | CN1378708A (pt) |
AU (1) | AU779425B2 (pt) |
BR (1) | BR0014590A (pt) |
CA (1) | CA2386202A1 (pt) |
MX (1) | MXPA02003503A (pt) |
TW (1) | TW488109B (pt) |
WO (1) | WO2001028011A1 (pt) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6797422B2 (en) * | 2001-01-25 | 2004-09-28 | Gas Technology Institute | Air-breathing direct methanol fuel cell with metal foam current collectors |
TW543231B (en) * | 2001-05-14 | 2003-07-21 | Reveo Inc | Metal air cell incorporating ionic isolation systems |
US6846588B2 (en) | 2002-01-16 | 2005-01-25 | Alberta Research Council Inc. | Hollow inorganic membranes produced by metal or composite electrodeposition |
US6893762B2 (en) | 2002-01-16 | 2005-05-17 | Alberta Research Council, Inc. | Metal-supported tubular micro-fuel cell |
US6824907B2 (en) | 2002-01-16 | 2004-11-30 | Alberta Reasearch Council, Inc. | Tubular solid oxide fuel cell stack |
US7736772B2 (en) | 2002-02-14 | 2010-06-15 | Alberta Research Council, Inc. | Tubular solid oxide fuel cell stack |
US7097933B2 (en) * | 2003-06-09 | 2006-08-29 | Ovonic Battery Company, Inc. | Catalyst for fuel cell oxygen electrodes |
NO320029B1 (no) * | 2003-07-07 | 2005-10-10 | Revolt Technology As | Fremgangsmate for fremstilling av gassdiffusjonselektroder |
CN100399609C (zh) * | 2003-09-02 | 2008-07-02 | 中国科学院大连化学物理研究所 | 直接醇类燃料电池膜电极结构与制备方法 |
US7108813B2 (en) * | 2004-03-30 | 2006-09-19 | The Board Of Trustees Of The Leland Stanford Junior University | Gas/ion species selective membrane supported by multi-stage nano-hole array metal structure |
US20080226966A1 (en) * | 2004-12-20 | 2008-09-18 | David Dillard | Fuel Cell Devices, Systems, and Methods |
US8709674B2 (en) | 2005-04-29 | 2014-04-29 | Alberta Research Council Inc. | Fuel cell support structure |
US7722979B2 (en) * | 2005-10-14 | 2010-05-25 | Gm Global Technology Operations, Inc. | Fuel cells with hydrophobic diffusion medium |
US20080093006A1 (en) * | 2005-12-19 | 2008-04-24 | David Dillard | Fuel cell devices, systems, and methods |
WO2007112563A1 (en) * | 2006-03-30 | 2007-10-11 | Magpower Systems Inc. | Air diffusion cathodes for fuel cells |
DE102006015537A1 (de) * | 2006-03-31 | 2007-10-11 | Neos International Gmbh | Elektrochemische Spannungs-/Stromquelle, insbesondere Brennstoffzelle oder Batterie |
WO2007112912A1 (de) * | 2006-03-31 | 2007-10-11 | Neos International Gmbh | Sicherheitsschaltung für batteriezellen einer batterie |
EP2041824B1 (en) | 2006-07-14 | 2013-02-20 | Ovonic Battery Company, Inc. | Multilayer catalysts for fuel cell oxygen electrodes |
CN101188299A (zh) | 2006-11-23 | 2008-05-28 | 林益泉 | 粉末燃料电池 |
US8673067B2 (en) * | 2009-05-21 | 2014-03-18 | Battelle Memorial Institute | Immobilized fluid membranes for gas separation |
US8481187B2 (en) * | 2009-09-10 | 2013-07-09 | Battelle Memorial Institute | High-energy metal air batteries |
US20110059364A1 (en) * | 2009-09-10 | 2011-03-10 | Battelle Memorial Institute | Air electrodes for high-energy metal air batteries and methods of making the same |
WO2011044703A1 (en) | 2009-10-16 | 2011-04-21 | National Research Council Of Canada | An air cathode for metal-air fuel cells |
CN105375039B (zh) | 2010-08-31 | 2018-06-22 | 中国科学院上海硅酸盐研究所 | 一种锂空气电池空气电极及其制备方法 |
CN102544632A (zh) * | 2010-12-07 | 2012-07-04 | 中国电子科技集团公司第十八研究所 | 一种防阻塞锂空气电池 |
US20150064606A1 (en) * | 2012-03-28 | 2015-03-05 | Nv Bekaert Sa | Assembly of a porous metal diffusion substrate and a polymeric separator membrane |
CN102738474B (zh) * | 2012-07-17 | 2015-05-20 | 中国东方电气集团有限公司 | 复合多孔电极、含有其的单电池和电池堆及其制备方法 |
CN102738473B (zh) * | 2012-07-17 | 2015-07-08 | 中国东方电气集团有限公司 | 复合多孔电极、含有其的单电池和电池堆及其制备方法 |
US20150380786A1 (en) * | 2012-11-05 | 2015-12-31 | Zongxuan Hong | Metal-air battery |
US20140356523A1 (en) * | 2013-05-29 | 2014-12-04 | GM Global Technology Operations LLC | Materials, methods, and apparatus for improving leak robustness |
US8728671B1 (en) | 2013-06-05 | 2014-05-20 | ZAF Energy Systems, Incorporated | Air electrodes including perovskites |
CN107317040A (zh) * | 2017-06-22 | 2017-11-03 | 清华大学 | 用于气体消耗反应的漂浮式气体扩散电极及其制备 |
JP7246012B2 (ja) * | 2017-11-16 | 2023-03-27 | パナソニックIpマネジメント株式会社 | 空気電池用正極及び空気電池 |
WO2019097830A1 (ja) * | 2017-11-16 | 2019-05-23 | パナソニックIpマネジメント株式会社 | 空気電池用正極及び空気電池 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1008623A (en) | 1972-02-11 | 1977-04-19 | Gould Inc. | Process and apparatus for manufacture of an electrode |
US4339325A (en) | 1980-10-31 | 1982-07-13 | Diamond Shamrock Corporation | One pass process for forming electrode backing sheet |
US4405544A (en) | 1980-10-31 | 1983-09-20 | Diamond Shamrock Corporation | Strengthening of carbon black-teflon-containing electrode |
US4444852A (en) * | 1982-08-27 | 1984-04-24 | The United States Of America As Represented By The United States Department Of Energy | Size and weight graded multi-ply laminar electrodes |
JPS59171468A (ja) * | 1983-03-18 | 1984-09-27 | Matsushita Electric Ind Co Ltd | 空気極及びその触媒の製造法 |
JPS60136168A (ja) * | 1983-12-26 | 1985-07-19 | Toshiba Corp | 空気電極の製造方法 |
US4615954A (en) | 1984-09-27 | 1986-10-07 | Eltech Systems Corporation | Fast response, high rate, gas diffusion electrode and method of making same |
US4626482A (en) | 1985-11-18 | 1986-12-02 | Alupower, Inc. | Metal/air batteries |
US4877694A (en) | 1987-05-18 | 1989-10-31 | Eltech Systems Corporation | Gas diffusion electrode |
US5032473A (en) | 1987-07-06 | 1991-07-16 | Alupower, Inc. | Electrochemical cathode |
US4906535A (en) | 1987-07-06 | 1990-03-06 | Alupower, Inc. | Electrochemical cathode and materials therefor |
US4885217A (en) | 1987-07-06 | 1989-12-05 | Alupower, Inc. | Air cathodes and materials therefor |
US4927514A (en) | 1988-09-01 | 1990-05-22 | Eltech Systems Corporation | Platinum black air cathode, method of operating same, and layered gas diffusion electrode of improved inter-layer bonding |
FR2647968A1 (fr) * | 1989-06-06 | 1990-12-07 | Sorapec | Procede de fabrication d'electrodes de piles a combustible |
US4988581A (en) * | 1989-07-19 | 1991-01-29 | Alcan International Limited | Metal-air bipolar cell unit |
US5053375A (en) | 1990-01-08 | 1991-10-01 | Alupower, Inc. | Electrochemical cathode and materials therefor |
US5242765A (en) | 1992-06-23 | 1993-09-07 | Luz Electric Fuel Israel Limited | Gas diffusion electrodes |
US5441823A (en) | 1994-07-01 | 1995-08-15 | Electric Fuel (E.F.L.) Ltd. | Process for the preparation of gas diffusion electrodes |
IT1291603B1 (it) * | 1997-04-18 | 1999-01-11 | De Nora Spa | Elettrodi a diffusione gassosa per cella a combustibile a membrana polimerica |
-
1999
- 1999-10-08 US US09/415,449 patent/US6368751B1/en not_active Expired - Fee Related
-
2000
- 2000-10-05 WO PCT/US2000/027497 patent/WO2001028011A1/en active Search and Examination
- 2000-10-05 CA CA002386202A patent/CA2386202A1/en not_active Abandoned
- 2000-10-05 KR KR1020027004345A patent/KR20020043610A/ko not_active Application Discontinuation
- 2000-10-05 CN CN00814009A patent/CN1378708A/zh active Pending
- 2000-10-05 AU AU77544/00A patent/AU779425B2/en not_active Ceased
- 2000-10-05 MX MXPA02003503A patent/MXPA02003503A/es active IP Right Grant
- 2000-10-05 BR BR0014590-4A patent/BR0014590A/pt not_active IP Right Cessation
- 2000-10-05 EP EP00967326A patent/EP1230696A4/en not_active Withdrawn
- 2000-10-05 JP JP2001530130A patent/JP2003511828A/ja active Pending
- 2000-10-09 TW TW089121154A patent/TW488109B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1230696A4 (en) | 2005-04-27 |
AU7754400A (en) | 2001-04-23 |
WO2001028011A1 (en) | 2001-04-19 |
CN1378708A (zh) | 2002-11-06 |
KR20020043610A (ko) | 2002-06-10 |
US6368751B1 (en) | 2002-04-09 |
EP1230696A1 (en) | 2002-08-14 |
AU779425B2 (en) | 2005-01-27 |
MXPA02003503A (es) | 2002-09-02 |
CA2386202A1 (en) | 2001-04-19 |
TW488109B (en) | 2002-05-21 |
JP2003511828A (ja) | 2003-03-25 |
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