JP2005209605A - 電解質膜・電極構造体及び燃料電池 - Google Patents
電解質膜・電極構造体及び燃料電池 Download PDFInfo
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- JP2005209605A JP2005209605A JP2004072734A JP2004072734A JP2005209605A JP 2005209605 A JP2005209605 A JP 2005209605A JP 2004072734 A JP2004072734 A JP 2004072734A JP 2004072734 A JP2004072734 A JP 2004072734A JP 2005209605 A JP2005209605 A JP 2005209605A
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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
- H01M4/8605—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
- H01M4/90—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
- 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]
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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
Abstract
【解決手段】電解質膜・電極構造体12は、固体高分子電解質膜18と、該固体高分子電解質膜18を挟持するアノード側電極20及びカソード側電極22とを備える。アノード側電極20及びカソード側電極22は、ガス拡散層24a、24bと電極触媒層26a、26bとを有する。電極触媒層26a、26bの周面部位には、前記電極触媒層26a、26bと接着層28a、28bとが混在する混在層38a、38bが所定の範囲Hにわたって設けられている。
【選択図】図3
Description
14、16…セパレータ 18…固体高分子電解質膜
20、72…アノード側電極 22、74…カソード側電極
24a、24b…ガス拡散層 26a、26b…電極触媒層
28a、28b、80a、80b…接着層
34…触媒粒子 36…接着剤粒子
38a、38b、82a、82b…混在層
46…酸化剤ガス流路 48…燃料ガス流路
50…冷却媒体流路 76a、76b…保水層
78a、78b…撥水層
Claims (8)
- 固体高分子電解質膜の両面に第1電極と該第1電極よりも大きな表面積を有する第2電極とを配設するとともに、燃料電池に組み込まれる電解質膜・電極構造体であって、
少なくとも前記第1電極又は第2電極は、接着層により前記固体高分子電解質膜の面に固定されるとともに、
少なくとも前記第1電極又は第2電極を構成する電極触媒層の周面部位には、前記電極触媒層と前記接着層とが混在する混在層が設けられることを特徴とする電解質膜・電極構造体。 - 請求項1記載の電解質膜・電極構造体において、少なくとも前記第1電極又は第2電極は、前記電極触媒層、保水層及び撥水層を備えるとともに、
前記保水層及び前記撥水層の周面部位には、前記接着層が混在する混在層が設けられることを特徴とする電解質膜・電極構造体。 - 請求項1又は2記載の電解質膜・電極構造体において、前記第1電極を構成する前記電極触媒層の面積は、前記第2電極を構成する前記電極触媒層の面積とは異なることを特徴とする電解質膜・電極構造体。
- 固体高分子電解質膜の両面に接着層により第1及び第2電極が固定されるとともに、燃料電池に組み込まれる電解質膜・電極構造体であって、
少なくとも前記第1電極又は第2電極は、前記固体高分子電解質膜の面に設けられる電極触媒層と、
前記電極触媒層上に設けられる保水層と、
前記保水層上に設けられる撥水層と、
前記撥水層上に設けられるガス拡散層と、
を備えるとともに、
前記電極触媒層、前記保水層及び前記撥水層の周面部位には、前記接着層が混在する混在層が設けられることを特徴とする電解質膜・電極構造体。 - 固体高分子電解質膜の両面に第1電極と該第1電極よりも大きな表面積を有する第2電極とを配設した電解質膜・電極構造体を備え、前記電解質膜・電極構造体を一対のセパレータで挟持する燃料電池であって、
少なくとも前記第1電極又は第2電極は、接着層により前記固体高分子電解質膜の面に固定されるとともに、
少なくとも前記第1電極又は第2電極を構成する電極触媒層の周面部位には、前記電極触媒層と前記接着層とが混在する混在層が設けられることを特徴とする燃料電池。 - 請求項5記載の燃料電池において、少なくとも前記第1電極又は第2電極は、前記電極触媒層、保水層及び撥水層を備えるとともに、
前記保水層及び前記撥水層の周面部位には、前記接着層が混在する混在層が設けられることを特徴とする燃料電池。 - 請求項5又は6記載の燃料電池において、前記第1電極を構成する前記電極触媒層の面積は、前記第2電極を構成する前記電極触媒層の面積とは異なることを特徴とする燃料電池。
- 固体高分子電解質膜の両面に接着層により第1及び第2電極が固定されるとともに、燃料電池に組み込まれる電解質膜・電極構造体を備え、前記電解質膜・電極構造体を一対のセパレータで挟持する燃料電池であって、
少なくとも前記第1電極又は第2電極は、前記固体高分子電解質膜の面に設けられる電極触媒層と、
前記電極触媒層上に設けられる保水層と、
前記保水層上に設けられる撥水層と、
前記撥水層上に設けられるガス拡散層と、
を備えるとともに、
前記電極触媒層、前記保水層及び前記撥水層の周面部位には、前記接着層が混在する混在層が設けられることを特徴とする燃料電池。
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JP2004072734A JP4304101B2 (ja) | 2003-12-24 | 2004-03-15 | 電解質膜・電極構造体及び燃料電池 |
US11/022,404 US7476459B2 (en) | 2003-12-24 | 2004-12-22 | Membrane electrode assembly and fuel cell |
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JP2003426384 | 2003-12-24 | ||
JP2004072734A JP4304101B2 (ja) | 2003-12-24 | 2004-03-15 | 電解質膜・電極構造体及び燃料電池 |
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JP2005209605A true JP2005209605A (ja) | 2005-08-04 |
JP4304101B2 JP4304101B2 (ja) | 2009-07-29 |
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JP (1) | JP4304101B2 (ja) |
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JP2011154969A (ja) * | 2010-01-28 | 2011-08-11 | Honda Motor Co Ltd | 膜−電極構造体の製造方法 |
JP2011222479A (ja) * | 2010-03-26 | 2011-11-04 | Honda Motor Co Ltd | 燃料電池用電解質膜・電極構造体及びその製造方法 |
WO2012035591A1 (ja) * | 2010-09-16 | 2012-03-22 | トヨタ自動車株式会社 | 膜電極接合体およびそれを用いた燃料電池、膜電極接合体の製造方法 |
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Also Published As
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US20050142397A1 (en) | 2005-06-30 |
US7476459B2 (en) | 2009-01-13 |
JP4304101B2 (ja) | 2009-07-29 |
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