JP4930241B2 - 燃料電池およびその触媒層を構成する電極粉末 - Google Patents
燃料電池およびその触媒層を構成する電極粉末 Download PDFInfo
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- JP4930241B2 JP4930241B2 JP2007188465A JP2007188465A JP4930241B2 JP 4930241 B2 JP4930241 B2 JP 4930241B2 JP 2007188465 A JP2007188465 A JP 2007188465A JP 2007188465 A JP2007188465 A JP 2007188465A JP 4930241 B2 JP4930241 B2 JP 4930241B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- 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]
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- 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
- H01M4/881—Electrolytic membranes
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- H—ELECTRICITY
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- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8814—Temporary supports, e.g. decal
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- 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
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- 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
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- H—ELECTRICITY
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- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
- H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
- H01M8/04171—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal using adsorbents, wicks or hydrophilic material
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- H—ELECTRICITY
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- H01M8/00—Fuel cells; Manufacture thereof
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- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04305—Modeling, demonstration models of fuel cells, e.g. for training purposes
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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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04492—Humidity; Ambient humidity; Water content
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- H—ELECTRICITY
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- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
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- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0234—Carbonaceous material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04492—Humidity; Ambient humidity; Water content
- H01M8/04529—Humidity; Ambient humidity; Water content of the electrolyte
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Materials Engineering (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Description
(1)表1に示す、触媒担持カーボンである導電性材料と電解質樹脂(Nafion:商標名)からなる5種類の電極粉末を調整し、テフロンシート上にキャスティングした。乾燥後、テフロンシートからかき取り粉末状態の電極粉末試料を得た。前処理として、その粉末を真空下で120℃、8Hr保持し、吸着水を脱離除去した。その試料を、試料温度を50℃に制御し、水蒸気分圧を徐々に上げながら圧力変化に伴う試料への水蒸気吸着量を求め、図1に示す水の吸着等温線のグラフを得た。各試料の水蒸気分圧0.6(P/Po)での水蒸気吸着量Va(cm3(STP)/g)を表1に示した。なお、STPは標準値であることを示す。また、水蒸気吸着量が直線的に増加する領域の代表点として、水蒸気分圧0.6を選択し、その水蒸気吸着量Vaを求めた。
Claims (5)
- 電解質膜の両面に触媒層を備えた膜電極接合体を持つ燃料電池であって、前記触媒層を構成する電極粉末は、電解質樹脂と触媒を把持した導電性材料からなる混合物であり、その水蒸気吸着量が水の吸着等温線から求まる水蒸気分圧0.6での値が52〜70cm3(STP)/gの範囲のものであることを特徴とする燃料電池。
- 請求項1に記載の燃料電池であって、前記電極粉末は、触媒種がPtCoまたはPtIrCoのいずれかであり、電解質樹脂/カーボンの質量比が0.75であることを特徴とする燃料電池。
- 請求項1または2に記載の燃料電池であって、発電時の最大電流密度が0.6A/cm 2 0.6V以上であることを特徴とする燃料電池。
- 燃料電池の膜電極接合体における触媒層を構成する電極粉末であって、前記電極粉末は電解質樹脂と触媒を把持した導電性材料からなる混合物であり、その水蒸気吸着量が水の吸着等温線から求まる水蒸気分圧0.6での値が52〜70cm3(STP)/gの範囲であることを特徴とする電極粉末。
- 請求項4に記載の電極粉末であって、触媒種がPtCoまたはPtIrCoのいずれかであり、電解質樹脂/カーボンの質量比が0.75であることを特徴とする電極粉末。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007188465A JP4930241B2 (ja) | 2007-07-19 | 2007-07-19 | 燃料電池およびその触媒層を構成する電極粉末 |
DE112008001878T DE112008001878B8 (de) | 2007-07-19 | 2008-07-18 | Brennstoffzelle und die katalytische Schicht derselben bildendes Elektrodenpulver |
PCT/JP2008/063459 WO2009011464A1 (ja) | 2007-07-19 | 2008-07-18 | 燃料電池およびその触媒層を構成する電極粉末 |
US12/668,454 US8415073B2 (en) | 2007-07-19 | 2008-07-18 | Fuel cell and electrode powder constituting the catalytic layer thereof |
CN200880023324A CN101689639A (zh) | 2007-07-19 | 2008-07-18 | 燃料电池和构成其催化剂层的电极粉末 |
Applications Claiming Priority (1)
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JP2007188465A JP4930241B2 (ja) | 2007-07-19 | 2007-07-19 | 燃料電池およびその触媒層を構成する電極粉末 |
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JP2009026602A JP2009026602A (ja) | 2009-02-05 |
JP4930241B2 true JP4930241B2 (ja) | 2012-05-16 |
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US (1) | US8415073B2 (ja) |
JP (1) | JP4930241B2 (ja) |
CN (1) | CN101689639A (ja) |
DE (1) | DE112008001878B8 (ja) |
WO (1) | WO2009011464A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5375623B2 (ja) * | 2010-01-18 | 2013-12-25 | 新日鐵住金株式会社 | 固体高分子型燃料電池用触媒及びこれを用いた固体高分子型燃料電池用電極 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10334922A (ja) | 1997-05-29 | 1998-12-18 | Hitachi Ltd | 固体高分子型燃料電池及び該固体高分子型燃料電池の製造方法 |
JP2002042824A (ja) | 2000-07-19 | 2002-02-08 | Fuji Electric Co Ltd | 固体高分子型燃料電池およびその製造方法 |
JP3433169B2 (ja) | 2000-09-22 | 2003-08-04 | 本田技研工業株式会社 | 固体高分子型燃料電池 |
JP5119459B2 (ja) * | 2001-09-28 | 2013-01-16 | 新日鐵住金株式会社 | 燃料電池 |
KR100919326B1 (ko) | 2004-04-22 | 2009-09-25 | 신닛뽄세이테쯔 카부시키카이샤 | 연료 전지 및 연료 전지용 가스 확산 전극 |
JP4799897B2 (ja) * | 2004-04-22 | 2011-10-26 | 新日本製鐵株式会社 | 燃料電池 |
JP4520815B2 (ja) * | 2004-10-19 | 2010-08-11 | 新日本製鐵株式会社 | 燃料電池用ガス拡散層、燃料電池用ガス拡散電極及び燃料電池 |
CN100466345C (zh) | 2004-04-22 | 2009-03-04 | 新日本制铁株式会社 | 燃料电池和燃料电池用气体扩散电极 |
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- 2007-07-19 JP JP2007188465A patent/JP4930241B2/ja active Active
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- 2008-07-18 DE DE112008001878T patent/DE112008001878B8/de active Active
- 2008-07-18 CN CN200880023324A patent/CN101689639A/zh active Pending
- 2008-07-18 US US12/668,454 patent/US8415073B2/en active Active
- 2008-07-18 WO PCT/JP2008/063459 patent/WO2009011464A1/ja active Application Filing
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Publication number | Publication date |
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WO2009011464A1 (ja) | 2009-01-22 |
DE112008001878B8 (de) | 2013-05-29 |
JP2009026602A (ja) | 2009-02-05 |
CN101689639A (zh) | 2010-03-31 |
US20100209808A1 (en) | 2010-08-19 |
DE112008001878T5 (de) | 2010-05-27 |
DE112008001878B4 (de) | 2013-03-14 |
US8415073B2 (en) | 2013-04-09 |
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