JP5412291B2 - 高分子電解質膜燃料電池のバイポーラ板用ステンレス鋼の表面特性改善方法 - Google Patents
高分子電解質膜燃料電池のバイポーラ板用ステンレス鋼の表面特性改善方法 Download PDFInfo
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- JP5412291B2 JP5412291B2 JP2009543948A JP2009543948A JP5412291B2 JP 5412291 B2 JP5412291 B2 JP 5412291B2 JP 2009543948 A JP2009543948 A JP 2009543948A JP 2009543948 A JP2009543948 A JP 2009543948A JP 5412291 B2 JP5412291 B2 JP 5412291B2
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- 239000010935 stainless steel Substances 0.000 title claims description 56
- 229910001220 stainless steel Inorganic materials 0.000 title claims description 56
- 239000000446 fuel Substances 0.000 title claims description 28
- 238000000034 method Methods 0.000 title claims description 28
- 239000012528 membrane Substances 0.000 title claims description 9
- 239000005518 polymer electrolyte Substances 0.000 title claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 36
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 22
- 239000011259 mixed solution Substances 0.000 claims description 13
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 11
- 229910017604 nitric acid Inorganic materials 0.000 claims description 11
- 238000005121 nitriding Methods 0.000 claims description 10
- 150000004767 nitrides Chemical class 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 description 44
- 239000010959 steel Substances 0.000 description 44
- 230000007797 corrosion Effects 0.000 description 28
- 238000005260 corrosion Methods 0.000 description 28
- 238000012986 modification Methods 0.000 description 25
- 230000004048 modification Effects 0.000 description 25
- 239000000126 substance Substances 0.000 description 22
- 239000011651 chromium Substances 0.000 description 18
- 239000010410 layer Substances 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 11
- 238000000926 separation method Methods 0.000 description 11
- 230000010287 polarization Effects 0.000 description 9
- 239000010949 copper Substances 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 230000002378 acidificating effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000002161 passivation Methods 0.000 description 7
- 230000003746 surface roughness Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 229910052804 chromium Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- -1 nitrogen ions Chemical class 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 238000000650 X-ray photoemission electron microscopy Methods 0.000 description 1
- QEFDIAQGSDRHQW-UHFFFAOYSA-N [O-2].[Cr+3].[Fe+2] Chemical compound [O-2].[Cr+3].[Fe+2] QEFDIAQGSDRHQW-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- CUPFNGOKRMWUOO-UHFFFAOYSA-N hydron;difluoride Chemical compound F.F CUPFNGOKRMWUOO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/081—Iron or steel solutions containing H2SO4
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
- H01M8/0208—Alloys
- H01M8/021—Alloys based on iron
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electrochemistry (AREA)
- Fuel Cell (AREA)
- Chemical Treatment Of Metals (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
Claims (7)
- 重量%で、C:0.02%以下、N:0.02%以下、Si:0.4%以下、Mn:0.2%以下、P:0.04%以下、S:0.02%以下、Cr:25〜32%、Mo:0.1〜5%、Cu:0.1〜2%、Ti:0.5%以下、Nb:0.5%以下、残部Fe及び不回避的元素からなるステンレス鋼の第1の不動態皮膜層を硫酸水溶液で除去し、
前記ステンレス鋼を水洗し、
前記ステンレス鋼を硝酸とフッ酸との混合溶液に浸漬して、前記第1の不動態皮膜層よりも低い接触抵抗を有する第2の不動態皮膜層を形成することを含むことを特徴とする、
高分子電解質膜燃料電池のバイポーラ板用ステンレス鋼の表面特性改善方法。 - 前記浸漬後のステンレス鋼をプラズマ窒化処理して、前記ステンレス鋼の表面に窒化物層を形成することをさらに含む、請求項1に記載の表面特性改善方法。
- 前記ステンレス鋼は、V:0〜1%、W:0〜4%、La:0〜1%、Zr:0〜1%及びB:0〜0.1%からなる群より選択される1種または2種以上の元素をさらに含む、請求項1または2に記載の表面特性改善方法。
- 前記硫酸水溶液において硫酸の濃度は、重量%で5%ないし20%であり、前記硫酸水溶液での前記酸洗浄は、50℃ないし75℃で20秒ないし5分間行われる、請求項1から3のいずれか1項に記載の表面特性改善方法。
- 前記混合溶液において、前記硝酸の濃度は重量%で10%ないし20%であり、前記フッ酸の濃度は重量%で1%ないし10%であり、前記混合溶液への前記浸漬処理は、40℃ないし60℃で30秒ないし10分間行われる、請求項1から4のいずれか1項に記載の表面特性改善方法。
- 前記窒化物層は、CrN及び/またはCr2Nを含み、前記窒化物層の厚さは、0.01nmないし100nmである、請求項2に記載の表面特性改善方法。
- 前記プラズマ窒化処理は、200℃ないし500℃で1分ないし5時間行われる、請求項2に記載の表面特性改善方法。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060137074A KR100836480B1 (ko) | 2006-12-28 | 2006-12-28 | 연료전지 분리판인 스테인리스 강재의 표면처리방법 |
KR10-2006-0137074 | 2006-12-28 | ||
KR20070134584 | 2007-12-20 | ||
KR10-2007-0134584 | 2007-12-20 | ||
KR10-2007-0134585 | 2007-12-20 | ||
KR1020070134585A KR100931457B1 (ko) | 2007-12-20 | 2007-12-20 | 고분자 연료전지 분리판용 스테인리스강의 표면 개질방법 |
PCT/KR2007/006908 WO2008082162A1 (en) | 2006-12-28 | 2007-12-27 | Method for improving surface properties of the stainless steels for bipolar plate of polymer electrolyte membrane fuel cell |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010514930A JP2010514930A (ja) | 2010-05-06 |
JP5412291B2 true JP5412291B2 (ja) | 2014-02-12 |
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Application Number | Title | Priority Date | Filing Date |
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JP2009543948A Active JP5412291B2 (ja) | 2006-12-28 | 2007-12-27 | 高分子電解質膜燃料電池のバイポーラ板用ステンレス鋼の表面特性改善方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9103041B2 (ja) |
JP (1) | JP5412291B2 (ja) |
DE (1) | DE112007003189T5 (ja) |
WO (1) | WO2008082162A1 (ja) |
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US20090137687A1 (en) * | 2003-02-28 | 2009-05-28 | Oxigene, Inc. | Compositions and Methods With Enhanced Therapeutic Activity |
EP2343763B1 (en) | 2008-10-07 | 2017-09-06 | Nippon Steel & Sumitomo Metal Corporation | Sheet stainless steel for separators in solid polymer fuel cells, and solid polymer fuel cells using the same |
KR100993412B1 (ko) | 2008-12-29 | 2010-11-09 | 주식회사 포스코 | 고분자 연료전지 분리판용 스테인리스강 및 그 제조방법 |
KR20120101552A (ko) * | 2010-01-20 | 2012-09-13 | 제이에프이 스틸 가부시키가이샤 | 접촉 전기 저항이 낮은 통전 부품용 스테인레스강 및 그 제조 방법 |
KR101873176B1 (ko) * | 2011-01-17 | 2018-06-29 | 제이에프이 스틸 가부시키가이샤 | 연료 전지 세퍼레이터용 스테인리스강의 제조 방법, 연료 전지 세퍼레이터용 스테인리스강, 연료 전지 세퍼레이터, 그리고 연료 전지 |
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EP3140433B1 (en) * | 2014-05-06 | 2020-07-15 | Case Western Reserve University | Alloy surface activation by immersion in aqueous acid solution |
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WO2017212656A1 (ja) * | 2016-06-10 | 2017-12-14 | Jfeスチール株式会社 | 燃料電池のセパレータ用ステンレス鋼板およびその製造方法 |
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JP5109234B2 (ja) | 2004-03-18 | 2012-12-26 | Jfeスチール株式会社 | 固体高分子型燃料電池セパレータ用金属材料,それを用いた燃料電池用セパレータ,その燃料電池および固体高分子型燃料電池セパレータ用金属材料の表面粗さ調整処理方法 |
US7687177B2 (en) | 2004-09-16 | 2010-03-30 | General Motors Corporation | Nitrided bipolar plates |
US20060204818A1 (en) * | 2005-02-22 | 2006-09-14 | Nissan Motor Co., Ltd. | Transition metal nitride and fuel cell applications |
JP5087846B2 (ja) | 2005-02-22 | 2012-12-05 | 日産自動車株式会社 | 遷移金属窒化物、燃料電池用セパレータ、燃料電池スタック、燃料電池車両、遷移金属窒化物の製造方法及び燃料電池用セパレータの製造方法 |
JP2006265664A (ja) | 2005-03-24 | 2006-10-05 | Nisshin Steel Co Ltd | 無段変速機ベルトの製造法 |
JP4756905B2 (ja) | 2005-05-10 | 2011-08-24 | 日新製鋼株式会社 | 固体酸化物型燃料電池セパレータ材 |
JP4998132B2 (ja) | 2007-08-06 | 2012-08-15 | Jfeスチール株式会社 | 水周り部材用フェライト系ステンレス鋼板 |
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2007
- 2007-12-27 US US12/521,550 patent/US9103041B2/en active Active
- 2007-12-27 WO PCT/KR2007/006908 patent/WO2008082162A1/en active Application Filing
- 2007-12-27 DE DE112007003189T patent/DE112007003189T5/de active Pending
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DE112007003189T5 (de) | 2009-12-17 |
JP2010514930A (ja) | 2010-05-06 |
US20100132842A1 (en) | 2010-06-03 |
US9103041B2 (en) | 2015-08-11 |
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