JP7401493B2 - 触媒インクの製造方法、および膜電極接合体の製造方法 - Google Patents
触媒インクの製造方法、および膜電極接合体の製造方法 Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims description 142
- 239000012528 membrane Substances 0.000 title claims description 56
- 238000004519 manufacturing process Methods 0.000 title claims description 26
- 238000000034 method Methods 0.000 title claims description 14
- 239000002245 particle Substances 0.000 claims description 79
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 74
- 229910052799 carbon Inorganic materials 0.000 claims description 73
- 239000005871 repellent Substances 0.000 claims description 42
- 239000003792 electrolyte Substances 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 31
- 229920000554 ionomer Polymers 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 10
- 125000001153 fluoro group Chemical group F* 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- 238000009472 formulation Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 36
- 238000009792 diffusion process Methods 0.000 description 35
- 239000000446 fuel Substances 0.000 description 34
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 30
- 239000005518 polymer electrolyte Substances 0.000 description 30
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 15
- 229910001882 dioxygen Inorganic materials 0.000 description 15
- -1 hydrogen ions Chemical class 0.000 description 14
- 229910052697 platinum Inorganic materials 0.000 description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000005342 ion exchange Methods 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- 150000004678 hydrides Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000003014 ion exchange membrane Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229920000557 Nafion® Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002134 carbon nanofiber Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
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Classifications
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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]
-
- 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
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
-
- 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
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
- H01M4/8673—Electrically conductive fillers
-
- 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
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/881—Electrolytic membranes
-
- 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
- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
-
- 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
- H01M4/9075—Catalytic material supported on carriers, e.g. powder carriers
- H01M4/9083—Catalytic material supported on carriers, e.g. powder carriers on carbon or graphite
-
- 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
-
- 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
- H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
- H01M2004/8689—Positive electrodes
-
- 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
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Description
(アノード側) H2 → 2H+ + 2e-
(カソード側) 1/2O2 + 2H+ + 2e- → H2O
図1は、本発明の一実施形態に係る固体高分子形燃料電池(PEFC:Polymer electrolyte fuel cell)の1つのセル1の模式図である。固体高分子形燃料電池は、図1に示すセル1を、直列に複数積層した構造を有する。ただし、固体高分子形燃料電池は、単一のセル1で構成されるものであってもよい。
続いて、上述したカソード触媒層31の、より詳細な組成について説明する。
カソード触媒層31は、電解質膜10の表面に、ペースト状の触媒インクを塗布することにより、形成される。以下では、カソード触媒層31となる触媒インクの製造方法について、説明する。
続いて、上述した触媒インクを用いて、膜電極接合体50を製造する方法について、説明する。
上記の実施形態では、固体高分子形燃料電池に使用される膜電極接合体50について説明した。しかしながら、本発明の膜電極接合体は、固体高分子形燃料電池以外の用途に使用されるものであってもよい。
C7H8+6H++6e- → C7H14
10 電解質膜
21 アノード触媒層
22 アノードガス拡散層
23 アノードガスケット
24 アノードセパレータ
25 アノード電極
31 カソード触媒層
32 カソードガス拡散層
33 カソードガスケット
34 カソードセパレータ
40 外部回路
50 膜電極接合体
51 触媒担持カーボン
52 アイオノマー
53 撥水性カーボン粒子
241 アノードセパレータの溝
341 カソードセパレータの溝
511 カーボン粒子
512 触媒粒子
Claims (3)
- 膜電極接合体のカソード触媒層となる触媒インクの製造方法であって、
カーボン粒子、触媒粒子、および水を調合することにより、第1調合液を生成する第1工程と、
前記第1調合液に、アルコール溶剤を添加することにより、第2調合液を生成する第2工程と、
前記第2調合液に、フッ素基が付与された撥水性カーボン粒子を添加することにより、第3調合液を生成する第3工程と、
前記第3調合液に、アイオノマー溶液を添加することにより、第4調合液を生成する第4工程と、
を含む、触媒インクの製造方法。 - 請求項1に記載の触媒インクの製造方法であって、
前記触媒インクに対する前記アルコール溶剤の割合が、15wt%以上である、触媒インクの製造方法。 - 膜電極接合体の製造方法であって、
請求項1または請求項2に記載の製造方法により製造された触媒インクを、電解質膜の一方の表面に塗布して、乾燥させることにより、前記カソード触媒層を形成する工程
を含む、膜電極接合体の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021147417A JP7401493B2 (ja) | 2021-09-10 | 2021-09-10 | 触媒インクの製造方法、および膜電極接合体の製造方法 |
EP22180056.8A EP4148842A1 (en) | 2021-09-10 | 2022-06-21 | Membrane electrode assembly, polymer electrolyte fuel cell, method of producing catalyst ink, and method of producing membrane electrode assembly |
KR1020220078766A KR20230038084A (ko) | 2021-09-10 | 2022-06-28 | 막 전극 접합체, 고체 고분자형 연료 전지, 촉매 잉크의 제조 방법, 및 막 전극 접합체의 제조 방법 |
CN202210853667.0A CN115799526B (zh) | 2021-09-10 | 2022-07-11 | 膜电极接合体及制造方法、电池、催化剂油墨的制造方法 |
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JP2021147417A JP7401493B2 (ja) | 2021-09-10 | 2021-09-10 | 触媒インクの製造方法、および膜電極接合体の製造方法 |
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JP2023040454A JP2023040454A (ja) | 2023-03-23 |
JP7401493B2 true JP7401493B2 (ja) | 2023-12-19 |
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EP (1) | EP4148842A1 (ja) |
JP (1) | JP7401493B2 (ja) |
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JP7345527B2 (ja) * | 2021-09-13 | 2023-09-15 | 株式会社Screenホールディングス | 膜電極接合体、水素製造装置、触媒インクの製造方法、および膜電極接合体の製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005276746A (ja) | 2004-03-26 | 2005-10-06 | Hitachi Ltd | 燃料電池および膜電極接合体 |
JP2009218006A (ja) | 2008-03-07 | 2009-09-24 | Nissan Motor Co Ltd | 電解質膜−電極接合体の製造方法 |
JP2013045694A (ja) | 2011-08-25 | 2013-03-04 | Nissan Motor Co Ltd | 燃料電池用電極触媒層、燃料電池用電極、燃料電池用膜電極接合体及び燃料電池 |
WO2017042919A1 (ja) | 2015-09-09 | 2017-03-16 | 日産自動車株式会社 | 燃料電池用電極触媒層およびその製造方法、ならびに当該触媒層を用いる膜電極接合体、燃料電池および車両 |
WO2020022191A1 (ja) | 2018-07-25 | 2020-01-30 | パナソニックIpマネジメント株式会社 | 燃料電池のカソード触媒層および燃料電池 |
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JP7128634B2 (ja) * | 2017-03-10 | 2022-08-31 | 株式会社豊田中央研究所 | アイオノマコート触媒及びその製造方法、並びに触媒インク |
JP7225691B2 (ja) | 2018-11-05 | 2023-02-21 | 凸版印刷株式会社 | 膜電極接合体及び固体高分子形燃料電池 |
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- 2022-06-21 EP EP22180056.8A patent/EP4148842A1/en active Pending
- 2022-06-28 KR KR1020220078766A patent/KR20230038084A/ko not_active Application Discontinuation
- 2022-07-11 CN CN202210853667.0A patent/CN115799526B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005276746A (ja) | 2004-03-26 | 2005-10-06 | Hitachi Ltd | 燃料電池および膜電極接合体 |
JP2009218006A (ja) | 2008-03-07 | 2009-09-24 | Nissan Motor Co Ltd | 電解質膜−電極接合体の製造方法 |
JP2013045694A (ja) | 2011-08-25 | 2013-03-04 | Nissan Motor Co Ltd | 燃料電池用電極触媒層、燃料電池用電極、燃料電池用膜電極接合体及び燃料電池 |
WO2017042919A1 (ja) | 2015-09-09 | 2017-03-16 | 日産自動車株式会社 | 燃料電池用電極触媒層およびその製造方法、ならびに当該触媒層を用いる膜電極接合体、燃料電池および車両 |
WO2020022191A1 (ja) | 2018-07-25 | 2020-01-30 | パナソニックIpマネジメント株式会社 | 燃料電池のカソード触媒層および燃料電池 |
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JP2023040454A (ja) | 2023-03-23 |
KR20230038084A (ko) | 2023-03-17 |
CN115799526A (zh) | 2023-03-14 |
EP4148842A1 (en) | 2023-03-15 |
CN115799526B (zh) | 2024-08-09 |
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