JP4963995B2 - 燃料電池用ガス拡散媒体としてのアクリル繊維結合炭素繊維紙 - Google Patents
燃料電池用ガス拡散媒体としてのアクリル繊維結合炭素繊維紙 Download PDFInfo
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- JP4963995B2 JP4963995B2 JP2007071896A JP2007071896A JP4963995B2 JP 4963995 B2 JP4963995 B2 JP 4963995B2 JP 2007071896 A JP2007071896 A JP 2007071896A JP 2007071896 A JP2007071896 A JP 2007071896A JP 4963995 B2 JP4963995 B2 JP 4963995B2
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/46—Non-siliceous fibres, e.g. from metal oxides
- D21H13/50—Carbon fibres
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/18—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylonitriles
-
- 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
- H01M8/0234—Carbonaceous material
-
- 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
- H01M8/0239—Organic resins; Organic polymers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Fuel Cell (AREA)
- Inert Electrodes (AREA)
Description
本発明の一般的な教示に従って、PEM型燃料電池システム用の新規で改良されたガス拡散媒体が提供される。
本発明の一側面に従って、アクリルパルプ繊維は、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約65質量%の量で存在する。
次の好ましい態様の記載は例示の性質のみを有し、本発明とその適用又は用途を限定することを意図しない。
まず、紙の形成の前に、約7ミクロンの繊維直径を有する炭素繊維(例えば、SGL Carbon Group (Wiesbaden, Germany) SIGRAFIL CR C30)を、例えば約5〜約7mm、又は製紙プロセスにとって十分な任意の長さのような所定の長さに切り刻む。
図2及び3は、本発明の一般的な教示に従って調製されたガス拡散媒体のSEM画像を示す。低倍率SEM画像(即ち、図2)は、炭化されたアクリル繊維でGDLの表面が覆われていることを示しており、一方、高倍率SEM画像(即ち、図3)は、炭化されフィブリル化されたアクリル構造を示す。カナディアン・スタンダード・フリーネス(CSF)240,6mm X 1.2dに叩解された高張力(HT)アクリル繊維(例えば、Acordis BV, Aenhem, The Netherlands)を65質量%と、炭素繊維(例えば、SGL Carbon Group (Wiesbaden, Germany) SIGRAFIL CR C30)を35質量%とで、試料を調製した。非限定的な例として、本発明のアクリル繊維には約100〜約450の範囲のCSFを有する繊維が含まれる。
Claims (21)
- 複数の炭素繊維を準備すること;
複数のアクリルパルプ繊維を準備すること;
追加の樹脂結合剤を該炭素繊維中に含浸させることなく、該アクリルパルプ繊維と該炭素繊維とを組み合わせて、マットを形成すること;及び
該アクリル繊維を硬化し、炭化すること
を含んでなる、燃料電池用ガス拡散層の形成方法。 - ガス拡散層をグラファイト化することをさらに含んでなる、請求項1に記載の方法。
- 炭素繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約25〜約50質量%の範囲で存在する、請求項1に記載の方法。
- 炭素繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約35質量%の量で存在する、請求項1に記載の方法。
- アクリルパルプ繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約50〜約75質量%の範囲で存在する、請求項1に記載の方法。
- アクリルパルプ繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約65質量%の量で存在する、請求項1に記載の方法。
- 炭化前のマットに添加される炭素繊維が、硬化及び炭化工程後に、ガス拡散層の全質量に基づいて約40〜約70質量%の範囲で存在する、請求項1に記載の方法。
- 炭化されたアクリル繊維が、硬化及び炭化工程後に、ガス拡散層の全質量に基づいて約30〜約60質量%の範囲で存在する、請求項1に記載の方法。
- ガス拡散層が、プロトン交換膜型燃料電池に組込まれる、請求項1に記載の方法。
- 請求項1に記載の方法によって形成した燃料電池用ガス拡散層であって、
複数の炭素繊維を含んでなるマット;及び
該炭素繊維マットに組込まれた複数のアクリルパルプ繊維
を含んでなり、
該アクリルパルプ繊維は、炭素繊維マットに組込まれた後に硬化され、炭化され、
該炭素繊維が、硬化及び炭化工程後に、ガス拡散層の全質量に基づいて約40〜約70質量%の範囲で存在し、
炭化されたアクリルパルプ繊維が、硬化及び炭化工程後に、ガス拡散層の全質量に基づいて約30〜約60質量%の範囲で存在する、
前記燃料電池用ガス拡散層。 - 炭素繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約25〜約50質量%の範囲で存在する、請求項10に記載のガス拡散層。
- 炭素繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約35質量%の量で存在する、請求項10に記載のガス拡散層。
- アクリルパルプ繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約50〜約75質量%の範囲で存在する、請求項10に記載のガス拡散層。
- アクリルパルプ繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約65質量%の量で存在する、請求項10に記載のガス拡散層。
- ガス拡散層が、プロトン交換膜型燃料電池に組込まれる、請求項10に記載のガス拡散層。
- 請求項1に記載の方法によって形成した燃料電池用ガス拡散層であって、
複数の炭素繊維を含んでなるマット;及び
該炭素繊維マットに組込まれる複数のアクリルパルプ繊維
を含んでなり、
該アクリルパルプ繊維は、炭素繊維マットに組込まれた後に硬化され、炭化され、
該炭素繊維は、硬化され炭化される前に、ガス拡散層の全質量に基づいて約25〜約50質量%の範囲で存在し、
該アクリルパルプ繊維は、硬化され炭化される前に、ガス拡散層の全質量に基づいて約50〜約75質量%の範囲で存在する、
前記燃料電池用ガス拡散層。 - 炭素繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約35質量%の量で存在する、請求項16に記載のガス拡散層。
- アクリルパルプ繊維が、硬化及び炭化の前に、ガス拡散層の全質量に基づいて約65質量%の量で存在する、請求項16に記載のガス拡散層。
- 炭化前のマットに添加される炭素繊維が、硬化及び炭化工程後に、ガス拡散層の全質量に基づいて約40〜約70質量%の範囲で存在する、請求項16に記載のガス拡散層。
- 炭化されたアクリル繊維が、硬化及び炭化工程後に、ガス拡散層の全質量に基づいて約30〜約60質量%の範囲で存在する、請求項16に記載のガス拡散層。
- ガス拡散層が、プロトン交換膜型燃料電池に組込まれる、請求項16に記載のガス拡散層。
Applications Claiming Priority (2)
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US11/384,706 US8343452B2 (en) | 2006-03-20 | 2006-03-20 | Acrylic fiber bonded carbon fiber paper as gas diffusion media for fuel cell |
US11/384,706 | 2006-03-20 |
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JP4963995B2 true JP4963995B2 (ja) | 2012-06-27 |
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DE (1) | DE102007012718B4 (ja) |
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2006
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- 2007-03-20 JP JP2007071896A patent/JP4963995B2/ja not_active Expired - Fee Related
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US20070218346A1 (en) | 2007-09-20 |
CN101047253B (zh) | 2012-09-26 |
JP2007273466A (ja) | 2007-10-18 |
DE102007012718B4 (de) | 2013-10-17 |
DE102007012718A1 (de) | 2007-10-25 |
US8343452B2 (en) | 2013-01-01 |
CN101047253A (zh) | 2007-10-03 |
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