JP6512293B2 - 固体酸化物燃料電池の電極スラリー、固体酸化物燃料電池の電極用グリーンシート、固体酸化物燃料電池の電極、固体酸化物燃料電池、及び固体酸化物燃料電池の電極の製造方法 - Google Patents
固体酸化物燃料電池の電極スラリー、固体酸化物燃料電池の電極用グリーンシート、固体酸化物燃料電池の電極、固体酸化物燃料電池、及び固体酸化物燃料電池の電極の製造方法 Download PDFInfo
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- JP6512293B2 JP6512293B2 JP2017527840A JP2017527840A JP6512293B2 JP 6512293 B2 JP6512293 B2 JP 6512293B2 JP 2017527840 A JP2017527840 A JP 2017527840A JP 2017527840 A JP2017527840 A JP 2017527840A JP 6512293 B2 JP6512293 B2 JP 6512293B2
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- electrode
- fuel cell
- solid oxide
- oxide fuel
- slurry
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- 239000000446 fuel Substances 0.000 title claims description 123
- 239000007787 solid Substances 0.000 title claims description 84
- 239000011267 electrode slurry Substances 0.000 title claims description 35
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000010954 inorganic particle Substances 0.000 claims description 34
- 239000011148 porous material Substances 0.000 claims description 34
- 239000001301 oxygen Substances 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 239000003792 electrolyte Substances 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 229910044991 metal oxide Inorganic materials 0.000 claims description 11
- 150000004706 metal oxides Chemical class 0.000 claims description 11
- 238000005245 sintering Methods 0.000 claims description 11
- 239000008394 flocculating agent Substances 0.000 claims description 6
- 239000002346 layers by function Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 4
- 229920000768 polyamine Polymers 0.000 claims description 3
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims description 3
- 150000004670 unsaturated fatty acids Chemical class 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims 2
- -1 oxygen ions Chemical class 0.000 description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 230000008901 benefit Effects 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 239000002518 antifoaming agent Substances 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 239000000701 coagulant Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 5
- 239000004926 polymethyl methacrylate Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000004014 plasticizer Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011164 primary particle Substances 0.000 description 3
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 2
- VXQBJTKSVGFQOL-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethyl acetate Chemical compound CCCCOCCOCCOC(C)=O VXQBJTKSVGFQOL-UHFFFAOYSA-N 0.000 description 2
- 239000004803 Di-2ethylhexylphthalate Substances 0.000 description 2
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- MGYPLPRYNYINRY-UHFFFAOYSA-N [Cu]=O.[Sr].[La] Chemical compound [Cu]=O.[Sr].[La] MGYPLPRYNYINRY-UHFFFAOYSA-N 0.000 description 2
- UCZPLOPQBJXLFF-UHFFFAOYSA-N [Ni].[Ca].[La] Chemical compound [Ni].[Ca].[La] UCZPLOPQBJXLFF-UHFFFAOYSA-N 0.000 description 2
- FZJJTYLFARYPAT-UHFFFAOYSA-N [Ni].[Sr].[La] Chemical compound [Ni].[Sr].[La] FZJJTYLFARYPAT-UHFFFAOYSA-N 0.000 description 2
- YMVZSICZWDQCMV-UHFFFAOYSA-N [O-2].[Mn+2].[Sr+2].[La+3] Chemical compound [O-2].[Mn+2].[Sr+2].[La+3] YMVZSICZWDQCMV-UHFFFAOYSA-N 0.000 description 2
- PACGUUNWTMTWCF-UHFFFAOYSA-N [Sr].[La] Chemical compound [Sr].[La] PACGUUNWTMTWCF-UHFFFAOYSA-N 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001739 density measurement Methods 0.000 description 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910021526 gadolinium-doped ceria Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 229910003099 (Y2O3)x(ZrO2)1−x Inorganic materials 0.000 description 1
- LZDKZFUFMNSQCJ-UHFFFAOYSA-N 1,2-diethoxyethane Chemical compound CCOCCOCC LZDKZFUFMNSQCJ-UHFFFAOYSA-N 0.000 description 1
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 241000968352 Scandia <hydrozoan> Species 0.000 description 1
- JZMOMQOPNXIJMG-UHFFFAOYSA-N [Co].[Sr].[Ba] Chemical compound [Co].[Sr].[Ba] JZMOMQOPNXIJMG-UHFFFAOYSA-N 0.000 description 1
- QBYHSJRFOXINMH-UHFFFAOYSA-N [Co].[Sr].[La] Chemical compound [Co].[Sr].[La] QBYHSJRFOXINMH-UHFFFAOYSA-N 0.000 description 1
- HHWBWNRYGPXTSW-UHFFFAOYSA-N [Co]=O.[Sr].[Gd] Chemical compound [Co]=O.[Sr].[Gd] HHWBWNRYGPXTSW-UHFFFAOYSA-N 0.000 description 1
- OQKOQEWPYHIUMN-UHFFFAOYSA-N [Sr].[Co]=O.[Sm] Chemical compound [Sr].[Co]=O.[Sm] OQKOQEWPYHIUMN-UHFFFAOYSA-N 0.000 description 1
- UNPDDPPIJHUKSG-UHFFFAOYSA-N [Sr].[Sm] Chemical compound [Sr].[Sm] UNPDDPPIJHUKSG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- HJGMWXTVGKLUAQ-UHFFFAOYSA-N oxygen(2-);scandium(3+) Chemical compound [O-2].[O-2].[O-2].[Sc+3].[Sc+3] HJGMWXTVGKLUAQ-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
-
- 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
- H01M4/8636—Inert electrodes with catalytic activity, e.g. for fuel cells with a gradient in another property than porosity
-
- 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
- H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
-
- 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
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8882—Heat treatment, e.g. drying, baking
- H01M4/8885—Sintering or firing
-
- 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
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
- H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
-
- 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
- H01M4/9041—Metals or alloys
- H01M4/905—Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC
-
- 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
- H01M4/9041—Metals or alloys
- H01M4/905—Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC
- H01M4/9058—Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC of noble metals or noble-metal based alloys
-
- 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
-
- 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
- H01M8/1246—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
-
- 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide 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
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Composite Materials (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Description
[式1]
1.スラリー製作ステップ
無機粒子としてGDC Powder(Rhodia社、UHSA grade、primary particle size:〜30nm)12.5g、Nickelous Oxide powder(J.T.Baker、Primary particle:〜200nm)22.0g、PMMA bead(Sekisui社、primary particle size:1μm、Grade:SSX−101)4gとGDC Powder、制御性凝集剤水溶液(Anti Terra−250、Solid contents:70%)5.5gをD.I.Water 20.0gと共に混合した後、Ball(3mm、ZrO2)25gを容器に入れた後、48時間分散を実施した。さらに分散液にバインダー水溶液(Polymer Innovation社、Grade:WB40B−53、Solid Contents:25%)20.0gと消泡剤(Polymer Innovation社、Grade:DF002)2.0gを添加した後、72時間混合する過程を経てスラリーを完成した。
製造されたスラリーをポリエチレンテレフタレート(PET)フィルム上にフィルムキャスティング装置を用いて600μm厚さでコーティングした後、60℃の温度で溶媒を蒸発させ、乾燥された状態のグリーンシートを製造した。
前記グリーンシートを1500℃で焼結させ、厚さが約450μmの焼結体を製作した。
実施例1においてAntiTerra 250の代わりにByk 187(Solid contents:70%含量)5.5gを用いたことを除いては、実施例1と同様に製造して厚さが約400μmの焼結体を製作した。
実施例1においてAntiTerra 250の代わりにByk 190(Solid contents:40%)10.0g及びD.I.Water 15.5gを用いたことを除いては、実施例1と同様に製造して厚さが約390μmの焼結体を製作した。
焼結体の気孔度を測定するために、Archimedes密度測定方法を用いて測定し、具体的には、実施例及び比較例1及び2で焼成された焼結体を各々蒸留水300mlが入れられた測定容器に投入し、その測定容器を2時間加熱した後、Archimedes密度測定方法を用いて密度を測定した。測定された結果を下記の表1に示す。
収縮率実験
実施例及び比較例1及び2において焼成による収縮の変化を定量化した。この時、前記焼成前の厚さ及び大きさ(2.5cm×2.5cm)を基準に、焼成後の厚さ及び大きさ(横×縦)の変化を百分率で計算し、表1に厚さ及び大きさの収縮率を各々記載した。
100 ・・・燃料極支持体
200 ・・・燃料極機能性層
300 ・・・電解質層
400 ・・・空気極
Claims (15)
- 酸素イオン伝導性無機物粒子、気孔形成剤、制御性凝集剤(Controlled flocculating agent)及び溶媒を含む固体酸化物燃料電池の電極スラリーであって、
前記制御性凝集剤は、ポリアミン塩及び不飽和脂肪酸のアルキロールアンモニウム塩のうち少なくとも一つを含む、固体酸化物燃料電池の電極スラリー。 - 前記電極スラリーは、Ni、NiO、Ru、Co及びPtのうち少なくとも一つを含む金属または金属酸化物をさらに含む、請求項1に記載の固体酸化物燃料電池の電極スラリー。
- 前記酸素イオン伝導性無機物粒子、前記金属または金属酸化物及び前記気孔形成剤の総重量を基準に、前記制御性凝集剤の含量は1重量%以上20重量%以下である、請求項2に記載の固体酸化物燃料電池の電極スラリー。
- 請求項1〜3のいずれか1項に記載の電極スラリーを用いて製造された固体酸化物燃料電池の電極用グリーンシート。
- 請求項1〜3のいずれか1項に記載の電極スラリーを用いて製造された固体酸化物燃料電池の電極。
- 前記電極の気孔度は20%以上50%以下である、請求項5に記載の固体酸化物燃料電池の電極。
- 下記式1による気孔形成剤の気孔形成率は0.7以上である、請求項5に記載の固体酸化物燃料電池の電極:
[式1]
- 前記電極の気孔の大きさは0.1μm以上500μm以下である、請求項5に記載の固体酸化物燃料電池の電極。
- 燃料極、電解質層及び空気極が順次備えられた固体酸化物燃料電池であって、
前記燃料極及び空気極のうち少なくとも一つは請求項5に記載の電極を含む固体酸化物燃料電池。 - 燃料極、電解質層及び空気極が順次備えられた固体酸化物燃料電池であって、
前記燃料極は請求項5に記載の電極を含む固体酸化物燃料電池。 - 前記電極は厚さが1μm以上の燃料極支持体である、請求項10に記載の固体酸化物燃料電池。
- 前記燃料極は、前記燃料極支持体と電解質層との間に備えられた燃料極機能性層をさらに含む、請求項11に記載の固体酸化物燃料電池。
- 酸素イオン伝導性無機物粒子、気孔形成剤、制御性凝集剤(Controlled flocculating agent)及び溶媒を含む固体酸化物燃料電池の電極スラリーを用いて固体酸化物燃料電池の電極用グリーンシートを形成するステップ、及び
前記固体酸化物燃料電池の電極用グリーンシートを焼結して電極を製造するステップを含む固体酸化物燃料電池の電極の製造方法であって、
前記制御性凝集剤は、ポリアミン塩及び不飽和脂肪酸のアルキロールアンモニウム塩のうち少なくとも一つを含む、固体酸化物燃料電池の電極の製造方法。 - 前記固体酸化物燃料電池の電極用グリーンシートを焼結するステップは、前記酸素イオン伝導性無機物粒子が固結され、前記制御性凝集剤が除去されつつ、前記酸素イオン伝導性無機物粒子で固結された固結体に気孔を形成するステップである、請求項13に記載の固体酸化物燃料電池の電極の製造方法。
- 前記電極は固体酸化物燃料電池の燃料極支持体である、請求項13に記載の固体酸化物燃料電池の電極の製造方法。
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