JP4725041B2 - 燃料電池 - Google Patents
燃料電池 Download PDFInfo
- Publication number
- JP4725041B2 JP4725041B2 JP2004183482A JP2004183482A JP4725041B2 JP 4725041 B2 JP4725041 B2 JP 4725041B2 JP 2004183482 A JP2004183482 A JP 2004183482A JP 2004183482 A JP2004183482 A JP 2004183482A JP 4725041 B2 JP4725041 B2 JP 4725041B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- solid electrolyte
- fuel cell
- fuel
- internal electrode
- 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 - Fee Related
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Classifications
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04197—Preventing means for fuel crossover
-
- 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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2457—Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
-
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
- Inert Electrodes (AREA)
Description
前記電子伝導性固体電解質部分は、プロトン伝導性の電解質と黒鉛粒子あるいはカーボンファイバーとの混合物を層状に形成したものであってガス遮断性を有することを特徴とする。内部電極には、固体電解質の内部に好ましくない透過した水素あるいは酸素により電極電位が生じる。内部電極を静止電位から分極させて酸化電流あるいは還元電流を流して、内部電極の近傍に存在する水素を酸化あるいは酸素を還元することにより、固体電解質の内部に透過した水素と酸素が対極側に到達することが阻止される。その結果、固体電解質が損傷を被る問題が解決される。
参考例1は、図1に基づく参考例の燃料電池1を作製および分析するものである。
実施例1は、図3、4に基づく本発明の燃料電池1を作製および分析するものである。
参考例1および実施例1において、参考例及び本発明の燃料電池またはMEAのリーク水素ガス濃度が比較用燃料電池またはMEAのリーク水素ガス濃度より低い理由は以下のように説明することができる。
3:燃料電極 4:酸化剤電極 5:電子伝導性固体電解質
6:内部電極 7:真正固体電解質 8:負荷
9:スイッチ 10:導体あるいは抵抗体
11:導体あるいは抵抗体
Claims (4)
- プロトン伝導体からなる高分子電解質膜である固体電解質と該固体電解質の一方の側に設けられた燃料電極と他方の側に設けられた酸化剤電極とを有する燃料電池において、
前記固体電解質はその内部に一つ以上の内部電極を持ち、該固体電解質の内部に透過した燃料あるいは酸化剤をそれぞれ酸化あるいは還元するために、該内部電極を電気化学的に分極させる分極手段を燃料電池の内部に有し、
前記分極手段は、前記内部電極と前記燃料電極及び前記酸化剤電極の一方との間の一部を電気的に接続する電子伝導性固体電解質部分を有し、電気化学的閉回路を形成する閉回路形成手段であり、
前記電子伝導性固体電解質部分は、プロトン伝導性の電解質と黒鉛粒子あるいはカーボンファイバーとの混合物を層状に形成したものであってガス遮断性を有することを特徴とする燃料電池。 - 前記内部電極は、電極触媒とプロトン伝導性の高分子電解質との混合物を層状に形成した電極である請求項1に記載の燃料電池。
- 前記内部電極は、前記固体電解質を該内部電極で分離するようにあるいは部分的に分離するように配置されている請求項1又は2に記載の燃料電池。
- 燃料として水素またはメタノールを用いる請求項1〜3のいずれかに記載の燃料電池。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004183482A JP4725041B2 (ja) | 2004-03-01 | 2004-06-22 | 燃料電池 |
EP05004081A EP1571724B1 (en) | 2004-03-01 | 2005-02-24 | Fuel Cell |
DE602005017686T DE602005017686D1 (de) | 2004-03-01 | 2005-02-24 | Brennstoffzelle |
US11/064,093 US7816040B2 (en) | 2004-03-01 | 2005-02-24 | Fuel cell |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004056540 | 2004-03-01 | ||
JP2004056540 | 2004-03-01 | ||
JP2004183482A JP4725041B2 (ja) | 2004-03-01 | 2004-06-22 | 燃料電池 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005285733A JP2005285733A (ja) | 2005-10-13 |
JP4725041B2 true JP4725041B2 (ja) | 2011-07-13 |
Family
ID=34752188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004183482A Expired - Fee Related JP4725041B2 (ja) | 2004-03-01 | 2004-06-22 | 燃料電池 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7816040B2 (ja) |
EP (1) | EP1571724B1 (ja) |
JP (1) | JP4725041B2 (ja) |
DE (1) | DE602005017686D1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008091045A (ja) * | 2006-09-29 | 2008-04-17 | Sanyo Electric Co Ltd | 燃料電池 |
US20080190780A1 (en) * | 2007-01-24 | 2008-08-14 | Treadstone Technologies, Inc. | Electrochemical processor for hydrogen processing and electrical power generation |
DE102012000870A1 (de) * | 2012-01-18 | 2013-07-18 | Forschungszentrum Jülich GmbH | Direkt-Methanol-Brennstoffzelle und Verfahren zum Betreiben derselben |
US20230021737A1 (en) * | 2017-12-22 | 2023-01-26 | Lyten, Inc. | Carbon-enhanced fuel cells |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2836275B2 (ja) | 1991-04-03 | 1998-12-14 | 松下電器産業株式会社 | 液体燃料電池用触媒の製造方法及びその電極の製造方法 |
US5672439A (en) * | 1995-12-18 | 1997-09-30 | Ballard Power Systems, Inc. | Method and apparatus for reducing reactant crossover in an electrochemical fuel cell |
US5958616A (en) * | 1998-02-06 | 1999-09-28 | Lynntech, Inc. | Membrane and electrode structure for methanol fuel cell |
JP2001297779A (ja) * | 2000-04-13 | 2001-10-26 | Matsushita Electric Ind Co Ltd | 燃料電池システム |
FR2819639A1 (fr) * | 2001-01-17 | 2002-07-19 | Sorapec | Nouvelles structures de couche active pour electrodes de pile a combustible a electrolyte solide polymere |
US6756141B2 (en) * | 2001-04-17 | 2004-06-29 | Southwest Research Institute | Three-electrode fuel cell |
JP2003086192A (ja) * | 2001-09-11 | 2003-03-20 | Toshiba International Fuel Cells Corp | 燃料電池およびその製造方法 |
JP4534423B2 (ja) * | 2002-07-30 | 2010-09-01 | アイシン精機株式会社 | 燃料電池の制御方法 |
US20050260470A1 (en) * | 2002-07-30 | 2005-11-24 | Aisin Seiki Kabushiki Kaisha | Fuel cell and control method thereof |
EP1453131B1 (en) * | 2003-02-25 | 2009-11-11 | Aisin Seiki Kabushiki Kaisha | Fuel cell with internal auxiliary electrode and method of controlling |
-
2004
- 2004-06-22 JP JP2004183482A patent/JP4725041B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-24 EP EP05004081A patent/EP1571724B1/en not_active Expired - Fee Related
- 2005-02-24 US US11/064,093 patent/US7816040B2/en not_active Expired - Fee Related
- 2005-02-24 DE DE602005017686T patent/DE602005017686D1/de active Active
Also Published As
Publication number | Publication date |
---|---|
JP2005285733A (ja) | 2005-10-13 |
US20050191529A1 (en) | 2005-09-01 |
EP1571724A3 (en) | 2006-02-01 |
EP1571724A2 (en) | 2005-09-07 |
DE602005017686D1 (de) | 2009-12-31 |
US7816040B2 (en) | 2010-10-19 |
EP1571724B1 (en) | 2009-11-18 |
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