JP4194040B2 - 炭酸塩燃料電池用のアノード支持体 - Google Patents
炭酸塩燃料電池用のアノード支持体 Download PDFInfo
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- JP4194040B2 JP4194040B2 JP2003554365A JP2003554365A JP4194040B2 JP 4194040 B2 JP4194040 B2 JP 4194040B2 JP 2003554365 A JP2003554365 A JP 2003554365A JP 2003554365 A JP2003554365 A JP 2003554365A JP 4194040 B2 JP4194040 B2 JP 4194040B2
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- Prior art keywords
- anode
- range
- support
- fuel cell
- assembly
- Prior art date
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- 239000000446 fuel Substances 0.000 title claims description 30
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims description 9
- 238000000034 method Methods 0.000 claims description 25
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- 239000003792 electrolyte Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 238000005245 sintering Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 238000003892 spreading Methods 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 24
- 239000007789 gas Substances 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000002407 reforming Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910003310 Ni-Al Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000001833 catalytic reforming Methods 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- 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
- H01M8/14—Fuel cells with fused electrolytes
- H01M2008/147—Fuel cells with molten carbonates
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inert Electrodes (AREA)
- Powder Metallurgy (AREA)
Description
本発明の原理に対応して、上記および他の目的は、所定粒径サイズの金属ニッケル粉末を粉末床(powder bed)にして、この粒子の焼結する温度でこの粉末床(powder bed)を加熱するアノード支持体を製造する方法において実現される。これは、アノード支持体として使用に適した、連結されて焼結されたニッケルの多孔性のプラーク(interconnected sintered nickel porous plaque)を結果として生じる。
図2は、本願発明の原理に対応したアノード支持体を製造する方法の流れを示す図である。図に示されるように、ステップ101において、アノード支持体を製造するために使用されるべき材料が選択される。本願発明の原理に対応して、所定粒径サイズを有する純粋の金属ニッケル(Ni)粉末は、支持体の製造用の金属として選択される。十分な反応物(reactant)の浸透性と機械的なクリープを低くするために焼結された状態において、十分大きな細孔を有する支持体を製造するために、粉末の粒径サイズは、45μm〜100μmの範囲において選択される。図3は、本発明のアノード支持体に対して使用できるNi粒子の代表的な1つの形態を示す図である。このタイプの純金属Ni粉末は、Praxairから入手可能でありNi118として売られている。
Claims (16)
- 燃料電池のアノード電極を支持するためのアノード支持体を製造する支持体製造工程を有する方法であって、
前記支持体製造工程は、
45μm〜100μmの範囲の粒径サイズの金属ニッケル粉末を用意する用意工程と、
前記用意された金属ニッケル粉末を基板上に均一に薄く広げて配置してベッドにする配置工程と、
前記金属ニッケル粉末のベッドを焼結して3次元的に連結されている多孔性のニッケルの焼結された構造体を製造する焼結工程と、
を有することを特徴とする方法。 - 前記構造体は、250μm〜400μmの範囲の厚さを有することを特徴とする請求項1に記載の方法。
- 前記構造体は、50%〜65%の範囲の気孔率を有することを特徴とする請求項1に記載の方法。
- 前記焼結工程は、1000℃〜1100℃の温度範囲で、30〜120分の時間範囲の期間行われることを特徴とする請求項1に記載の方法。
- 前記焼結工程は、4%H2−N2雰囲気において行われることを特徴とする請求項4に記載の方法。
- 前記基板は、グラファイトを含むことを特徴とする請求項4に記載の方法。
- 前記アノード支持体をアノード電極と接合してアノードアセンブリを形成する接合工程を更に有することを特徴とする請求項1に記載の方法。
- 前記アノードアセンブリは、400μm〜500μmの範囲の厚さを有することを特徴とする請求項7に記載の方法。
- 前記アノードアセンブリをカソード電極と、炭酸塩電解質タイルとともに組み立てて燃料電池アセンブリを形成する組立工程を更に有することを特徴とする請求項7に記載の方法。
- 前記燃料電池アセンブリは、溶融炭酸塩燃料電池アセンブリであることを特徴とする請求項9に記載の方法。
- 焼結されたニッケル粉末の3次元的に連結されている多孔性の構造体として形成されたアノード支持体を有し、前記ニッケル粉末は45μm〜100μmの範囲の粒径サイズであることを特徴とする装置。
- 前記構造体は、250μm〜400μmの範囲の厚さを有することを特徴とする請求項11に記載の装置。
- 前記構造体は、50%〜65%の範囲の気孔率を有することを特徴とする請求項11に記載の装置。
- アノードアセンブリを形成するために前記アノード支持体に接合されたアノード電極を更に有することを特徴とする請求項11に記載の装置。
- 前記アノードアセンブリは、400μm〜500μmの範囲の厚さを有することを特徴とする請求項14に記載の装置。
- 更に、カソード電極と、炭酸塩電解質タイルと、を有し、
前記アノードアセンブリと、前記カソード電極と前記炭酸塩電解質タイルとは、燃料電池アセンブリを形成するために前記アノードアセンブリと前記カソード電極とが前記炭酸塩電解質タイルと直接接触するようにして組み立てられることを特徴とする請求項14に記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/028,599 US6719946B2 (en) | 2001-12-20 | 2001-12-20 | Anode support for carbonate fuel cells |
PCT/US2002/038120 WO2003053613A1 (en) | 2001-12-20 | 2002-11-26 | Anode support for carbonate fuel cells |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005513726A JP2005513726A (ja) | 2005-05-12 |
JP4194040B2 true JP4194040B2 (ja) | 2008-12-10 |
Family
ID=21844340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003554365A Expired - Fee Related JP4194040B2 (ja) | 2001-12-20 | 2002-11-26 | 炭酸塩燃料電池用のアノード支持体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6719946B2 (ja) |
EP (1) | EP1463597B1 (ja) |
JP (1) | JP4194040B2 (ja) |
CN (1) | CN1274443C (ja) |
DE (1) | DE60211558T2 (ja) |
WO (1) | WO2003053613A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100388541C (zh) * | 2005-09-08 | 2008-05-14 | 上海交通大学 | 干法制备熔融碳酸盐燃料电池电极的方法 |
US20070243451A1 (en) * | 2006-04-14 | 2007-10-18 | Chao-Yi Yuh | Anode support member and bipolar separator for use in a fuel cell assembly and for preventing poisoning of reforming catalyst |
CN100419012C (zh) * | 2006-07-05 | 2008-09-17 | 哈尔滨工业大学 | 一种复合造孔剂及利用其制备阳极支撑体的方法 |
JP5164412B2 (ja) * | 2007-03-31 | 2013-03-21 | 三洋電機株式会社 | アルカリ蓄電池及び焼結基板の製造方法 |
US8137741B2 (en) * | 2007-05-10 | 2012-03-20 | Fuelcell Energy, Inc. | System for fabricating a fuel cell component for use with or as part of a fuel cell in a fuel cell stack |
KR100980209B1 (ko) * | 2007-12-28 | 2010-09-03 | 두산중공업 주식회사 | 건식 공정을 이용한 용융탄산염 연료전지용 다공성 금속전극의 제조방법 |
US8163437B2 (en) * | 2008-03-25 | 2012-04-24 | Fuelcell Energy, Inc. | Anode with ceramic additives for molten carbonate fuel cell |
DE102008045286B4 (de) * | 2008-08-04 | 2010-07-15 | Mtu Onsite Energy Gmbh | Verfahren zur Herstellung poröser Schmelzkarbonat-Brennstoffzellen-Anoden und grüne Schmelzkarbonat-Brennstoffzellen-Anode |
KR101047717B1 (ko) * | 2008-12-26 | 2011-07-08 | 두산중공업 주식회사 | 용융탄산염 연료전지용 전해질 함침형 다공성 금속 전극의 동시 건식 제조 방법 |
KR101047699B1 (ko) * | 2008-12-26 | 2011-07-08 | 두산중공업 주식회사 | 용융탄산염 연료전지용 전해질 함침형 다공성 건식 전극의 제조 방법 |
KR100980205B1 (ko) | 2008-12-30 | 2010-09-03 | 두산중공업 주식회사 | 용융탄산염 연료전지의 인-시츄 소결용 연료극 강화 시트 제조 방법 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE360952B (ja) * | 1970-12-21 | 1973-10-08 | Suab | |
US3943006A (en) * | 1973-12-27 | 1976-03-09 | Energy Research Corporation | Method of making a fuel cell electrode |
US4200515A (en) * | 1979-01-16 | 1980-04-29 | The International Nickel Company, Inc. | Sintered metal powder-coated electrodes for water electrolysis prepared with polysilicate-based paints |
US4315777A (en) * | 1979-08-07 | 1982-02-16 | Scm Corporation | Metal mass adapted for internal oxidation to generate dispersion strengthening |
US4384928A (en) * | 1980-11-24 | 1983-05-24 | Mpd Technology Corporation | Anode for oxygen evolution |
US4659379A (en) * | 1985-04-16 | 1987-04-21 | Energy Research Corporation | Nickel anode electrode |
US4714586A (en) | 1986-01-29 | 1987-12-22 | The United States Of America As Represented By The United States Department Of Energy | Method of preparing a dimensionally stable electrode for use in a MCFC |
US4999155A (en) | 1989-10-17 | 1991-03-12 | Electric Power Research Institute, Inc. | Method for forming porous oxide dispersion strengthened carbonate fuel cell anodes with improved anode creep resistance |
NL9000405A (nl) * | 1990-02-20 | 1991-09-16 | Stichting Energie | Poedervormig uitgangsmateriaal voor een legering op nikkelbasis voor het vervaardigen van een poreuze anode van een brandstofcel, werkwijze voor het bereiden van een dergelijk materiaal, werkwijze voor het vervaardigen van een anode voor brandstofcellen, de verkregen anode alsmede brandstofcel, die een dergelijke anode bevat. |
JP3003163B2 (ja) * | 1990-05-28 | 2000-01-24 | 石川島播磨重工業株式会社 | 溶融炭酸塩型燃料電池用電極の製造方法 |
US5401460A (en) * | 1993-11-23 | 1995-03-28 | M-C Power Corporation | Method for sintering fuel cell electrodes using a carrier |
US5558948A (en) * | 1994-11-09 | 1996-09-24 | Energy Research Corporation | Fuel cell anode and fuel cell |
EP1007308B1 (en) * | 1997-02-24 | 2003-11-12 | Superior Micropowders LLC | Aerosol method and apparatus, particulate products, and electronic devices made therefrom |
-
2001
- 2001-12-20 US US10/028,599 patent/US6719946B2/en not_active Expired - Lifetime
-
2002
- 2002-11-26 JP JP2003554365A patent/JP4194040B2/ja not_active Expired - Fee Related
- 2002-11-26 WO PCT/US2002/038120 patent/WO2003053613A1/en active IP Right Grant
- 2002-11-26 CN CNB028254570A patent/CN1274443C/zh not_active Expired - Fee Related
- 2002-11-26 DE DE60211558T patent/DE60211558T2/de not_active Expired - Lifetime
- 2002-11-26 EP EP02794062A patent/EP1463597B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1463597A1 (en) | 2004-10-06 |
US20030118466A1 (en) | 2003-06-26 |
WO2003053613A1 (en) | 2003-07-03 |
EP1463597A4 (en) | 2005-07-13 |
DE60211558T2 (de) | 2007-05-10 |
CN1274443C (zh) | 2006-09-13 |
US6719946B2 (en) | 2004-04-13 |
JP2005513726A (ja) | 2005-05-12 |
EP1463597B1 (en) | 2006-05-17 |
CN1606480A (zh) | 2005-04-13 |
DE60211558D1 (de) | 2006-06-22 |
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