KR101876266B1 - 금속지지체형 고체산화물 연료전지의 공기극층 제조방법 - Google Patents
금속지지체형 고체산화물 연료전지의 공기극층 제조방법 Download PDFInfo
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- 239000000446 fuel Substances 0.000 title claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 28
- 239000007787 solid Substances 0.000 title abstract description 29
- 238000004519 manufacturing process Methods 0.000 title abstract description 18
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000007650 screen-printing Methods 0.000 claims abstract description 11
- 239000011230 binding agent Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 11
- 238000009694 cold isostatic pressing Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 229910052727 yttrium Inorganic materials 0.000 claims description 6
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 5
- 229910052772 Samarium Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 229910003131 (ZrO2)1−x(Y2O3)x Inorganic materials 0.000 claims description 3
- 239000001856 Ethyl cellulose Substances 0.000 claims description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 2
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 2
- 229920001249 ethyl cellulose Polymers 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000002003 electrode paste Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910017060 Fe Cr Inorganic materials 0.000 description 2
- 229910002544 Fe-Cr Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- -1 oxygen ions Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- H01M4/8647—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
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
-
- 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
-
- 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
- H01M4/8896—Pressing, rolling, calendering
-
- 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
- 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
- H01M8/1253—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 the electrolyte containing zirconium oxide
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/0071—Oxides
- H01M2300/0074—Ion conductive at high temperature
- H01M2300/0077—Ion conductive at high temperature based on zirconium oxide
-
- 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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- 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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- Life Sciences & Earth Sciences (AREA)
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- Sustainable Energy (AREA)
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- Physics & Mathematics (AREA)
- Fuel Cell (AREA)
Abstract
이를 위해, 본 발명에서는 고체 전해질 일면에 형성되는 공기극을 스크린 프린칭 한 후 이를 열처리하는 대신에 스크린 프린팅 후 바인더를 제거하고나서 이를 냉간정수압 프레스(Cold Isostatic Press)함으로써 저온에서 열처리를 실시하여도 고체 전해질과의 접촉면적 및 밀착성 및 공기극 구성 입자간의 연결성과 접촉면적이 향상되어, 전극성능이 우수한 공기극층을 갖는 금속 지지체형 고체산화물 연료전지 단위 셀(unit cell)을 제조할 수 있다.
Description
도 2는 본 발명의 일 구현례에 따라 공기극층이 형성되는 과정을 모식화한 것이다.
Claims (6)
- 금속 지지체층, 연료극층 및 고체 전해질층을 포함하는 적층체를 준비하는 단계;
상기 적층체의 고체 전해질층 상에 공기극 분말로 공기극층을 형성하여 금속 지지체/연료극/고체 전해질/공기극 적층체를 제조하는 단계;
상기 적층체를 100~150℃에서 건조하는 단계;
상기 적층체를 300~400℃까지 1~3℃/min의 속도로 가열한 후 상기 온도에서 10~20시간 유지하는 단계; 및
상기 건조, 가열 및 유지된 적층체를 냉간정수압 프레스(Cold Isostatic Press)하는 단계를 포함하는 고체산화물 연료전지의 공기극층 제조방법.
- 삭제
- 제 1항에 있어서,
상기 고체 전해질층 상에 공기극층 제조는 상기 공기극 분말을 에틸셀룰롤스계 바인더와 함께 용매에 녹인 용액을 스크린 프린팅으로 제조되는 공기극층 제조방법.
- 제 1항에 있어서,
상기 냉간정수압 프레스(Cold Isostatic Press)는 상온에서 2,000kgf/cm2~4,000kgf/cm2로 압착하는 것인 공기극층 제조방법.
- 제 1항에 있어서,
상기 연료극은 Ni과 (ZrO2)1-x(Y2O3)x(x=0.08~0.1)의 복합체, Ni과 (ZrO2)0.90(Sc2O3)0.1-x(Y2O3)x(x=0~0.06)의 복합체 및 Ni과 Ce1 - xLnxO2 -δ(Ln=Gd, Sm 또는 Y, x=0.1~0.3, δ=0~0.2)의 복합체로 구성되는 그룹에서 선택된 1종 복합체 또는 2종 이상의 혼합물인 공기극층 제조방법.
- 제 1항에 있어서,
상기 고체 전해질은 (ZrO2)1-x(Y2O3)x(x=0.08~0.1), (ZrO2)0.90(Sc2O3)0.1-x(Y2O3)x(x=0.01~0.02) 또는 Ce1 - xLnxO2 -δ(Ln=Gd, Sm 또는 Y, x=0.1~0.3, δ=0~0.2)인 공기극층 제조방법.
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Citations (5)
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JP4252453B2 (ja) * | 2001-09-26 | 2009-04-08 | 日本碍子株式会社 | 電気化学セルおよびその製造方法 |
KR101114836B1 (ko) * | 2009-04-28 | 2012-03-06 | 연세대학교 산학협력단 | 저온 탄화수소용 구리-세리아계 연료극 지지체 sofc 단위전지 및 그 제조방법 |
WO2012046886A2 (ja) * | 2011-01-27 | 2012-04-12 | 新東工業株式会社 | 積層体固定治具、積層接合体製造システム及び積層接合体の製造方法 |
JP2012099408A (ja) * | 2010-11-04 | 2012-05-24 | Toyota Motor Corp | 燃料電池の製造方法 |
JP2012164672A (ja) * | 2006-02-10 | 2012-08-30 | Nippon Shokubai Co Ltd | 固体酸化物形燃料電池用空気極材料 |
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JP4252453B2 (ja) * | 2001-09-26 | 2009-04-08 | 日本碍子株式会社 | 電気化学セルおよびその製造方法 |
JP2012164672A (ja) * | 2006-02-10 | 2012-08-30 | Nippon Shokubai Co Ltd | 固体酸化物形燃料電池用空気極材料 |
KR101114836B1 (ko) * | 2009-04-28 | 2012-03-06 | 연세대학교 산학협력단 | 저온 탄화수소용 구리-세리아계 연료극 지지체 sofc 단위전지 및 그 제조방법 |
JP2012099408A (ja) * | 2010-11-04 | 2012-05-24 | Toyota Motor Corp | 燃料電池の製造方法 |
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