KR20240016612A - 연료전지용 금속 분리판 및 그 제조 방법 - Google Patents
연료전지용 금속 분리판 및 그 제조 방법 Download PDFInfo
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- KR20240016612A KR20240016612A KR1020220094587A KR20220094587A KR20240016612A KR 20240016612 A KR20240016612 A KR 20240016612A KR 1020220094587 A KR1020220094587 A KR 1020220094587A KR 20220094587 A KR20220094587 A KR 20220094587A KR 20240016612 A KR20240016612 A KR 20240016612A
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- fuel cell
- metal
- metal separator
- base plate
- modification layer
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 93
- 239000002184 metal Substances 0.000 title claims abstract description 93
- 239000000446 fuel Substances 0.000 title claims abstract description 73
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 29
- 230000004048 modification Effects 0.000 claims abstract description 41
- 238000012986 modification Methods 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 25
- 238000005530 etching Methods 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 5
- 238000001020 plasma etching Methods 0.000 claims description 3
- 238000007517 polishing process Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 32
- 238000005260 corrosion Methods 0.000 abstract description 32
- 239000002352 surface water Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 32
- 230000003746 surface roughness Effects 0.000 description 21
- 239000000463 material Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 8
- 230000002378 acidificating effect Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000012528 membrane Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000003487 electrochemical reaction Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 229910021645 metal ion Inorganic materials 0.000 description 5
- 239000005518 polymer electrolyte Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000004630 atomic force microscopy Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000001000 micrograph Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 239000005871 repellent Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- -1 hydrogen cations Chemical class 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004502 linear sweep voltammetry Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004832 voltammetry Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- NZZFYRREKKOMAT-UHFFFAOYSA-N diiodomethane Chemical compound ICI NZZFYRREKKOMAT-UHFFFAOYSA-N 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 230000003313 weakening effect Effects 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
- 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
- H01M8/0223—Composites
- H01M8/0228—Composites in the form of layered or coated products
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Fuel Cell (AREA)
Abstract
본 발명의 실시예에 따른 연료전지용 금속 분리판은 금속으로 이루어진 베이스판; 및 상기 베이스판 상에 제공되고, 마이크로 및 나노 단위의 표면 구조를 갖는 표면 개질층;을 포함할 수 있다.
Description
도 2는 본 발명의 실시예에 따른 연료전지용 금속 분리판의 표면의 주사 전자 현미경 이미지.
도 3은 본 발명의 실시예에 따른 연료전지용 금속 분리판의 원자 현미경 (AFM) 분석 결과 이미지.
도 4는 본 발명의 실시예에 따른 연료전지용 금속 분리판 물 접촉각 측정 결과 이미지.
도 5는 본 발명의 실시예에 따른 연료전지용 금속 분리판의 3 액적을 이용한 접촉각 측정 결과 이미지.
도 6은 본 발명의 실시예에 따른 연료전지용 금속 분리판의 동전위 분극시험 결과 그래프.
도 7은 본 발명의 다른 실시예에 따른 연료전지용 금속 분리판 제조 방법을 나타낸 순서도.
Ecorr (V vs. SCE) |
Icorr (μA/cm2) |
|
실시예(Etched) | -0.25 | 5.212 |
비교예(Bare) | -0.38 | 13.18 |
Claims (8)
- 금속으로 이루어진 베이스판; 및
상기 베이스판 상에 제공되고, 마이크로 및 나노 단위의 표면 구조를 갖는 표면 개질층;을 포함하는 연료전지용 금속 분리판. - 청구항 1에 있어서,
상기 금속은, 철을 함유한 철강, 스테인리스 강 합금, 티타늄 합금, 알루미늄 합금, 및 마그네슘 합금 중에서 선택되는 금속인 연료전지용 금속 분리판. - 청구항 1에 있어서,
상기 표면 개질층의 평균 거칠기 계수(Ra)는 80nm 내지 100㎛인 연료전지용 금속 분리판. - 청구항 1에 있어서,
상기 마이크로 및 나노 단위의 표면 구조의 폭은 0.1nm 내지 100㎛인 연료전지용 금속 분리판. - 청구항 1에 있어서,
상기 표면 개질층의 물 접촉각은 90o 이상인 연료전지용 금속 분리판. - 청구항 1에 있어서,
상기 표면 개질층은 상기 베이스판을 물리적, 화학적, 또는 물리화학적으로 식각하여 형성되는 연료전지용 금속 분리판. - 금속으로 이루어진 베이스판을 마련하는 과정; 및
상기 베이스판의 표면을 물리적, 화학적, 또는 물리화학적으로 식각하여 표면 개질층을 형성하는 과정;을 포함하는 연료전지용 금속 분리판 제조 방법. - 청구항 7에 있어서,
표면 개질층을 형성하는 과정은,
표면 연마 공정, 산성 용액 식각 공정, 가스 식각 공정, 또는 플라즈마 식각 공정 중에서 어느 하나의 공정으로 수행되는 연료전지용 금속 분리판 제조 방법.
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KR1020220094587A KR20240016612A (ko) | 2022-07-29 | 2022-07-29 | 연료전지용 금속 분리판 및 그 제조 방법 |
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KR1020220094587A KR20240016612A (ko) | 2022-07-29 | 2022-07-29 | 연료전지용 금속 분리판 및 그 제조 방법 |
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Citations (1)
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KR20170129498A (ko) | 2016-05-17 | 2017-11-27 | 한양대학교 산학협력단 | 연료전지용 분리판 및 그 제조 방법 |
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KR20170129498A (ko) | 2016-05-17 | 2017-11-27 | 한양대학교 산학협력단 | 연료전지용 분리판 및 그 제조 방법 |
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