KR20170136372A - 강화막, 이를 포함하는 막 전극 접합체 및 연료 전지, 및 이의 제조방법 - Google Patents
강화막, 이를 포함하는 막 전극 접합체 및 연료 전지, 및 이의 제조방법 Download PDFInfo
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- KR20170136372A KR20170136372A KR1020160068377A KR20160068377A KR20170136372A KR 20170136372 A KR20170136372 A KR 20170136372A KR 1020160068377 A KR1020160068377 A KR 1020160068377A KR 20160068377 A KR20160068377 A KR 20160068377A KR 20170136372 A KR20170136372 A KR 20170136372A
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Images
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
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
- H01M8/1023—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
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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]
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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
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1041—Polymer electrolyte composites, mixtures or blends
- H01M8/1053—Polymer electrolyte composites, mixtures or blends consisting of layers of polymers with at least one layer being ionically conductive
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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
- H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
- H01M8/1018—Polymeric electrolyte materials
- H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
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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
- H01M2008/1095—Fuel cells with polymeric electrolytes
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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
- 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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- Y02E60/521—
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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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- Y02P70/56—
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Crystallography & Structural Chemistry (AREA)
- Fuel Cell (AREA)
Abstract
Description
도 2는 막 전극 접합체의 구조를 개략적으로 나타낸 도면이다.
도 3은 연료 전지의 일 실시예를 개략적으로 나타낸 도면이다.
도 4는 실시예 1의 막 전극 접합체의 단면구조를 나타낸 것이다.
도 5는 실시예 2의 막 전극 접합체의 단면구조를 나타낸 것이다.
도 6은 비교예 1의 막 전극 접합체의 단면구조를 나타낸 것이다.
도 7은 비교예 2의 막 전극 접합체의 단면구조를 나타낸 것이다.
도 8은 본 명세서의 일 실시상태에 따른 제1 용액의 코팅방법에 대한 순서도이다.
도 9는 상대습도 (RH) 100 % 조건에서의 실시예 및 비교예에 따른 고분자 전해질막의 연료전지에서의 전류밀도에 따른 전압을 나타낸 것이다.
도 10은 상대습도 (RH) 50 % 조건에서의 실시예 및 비교예에 따른 고분자 전해질막의 연료전지에서의 전류밀도에 따른 전압을 나타낸 것이다.
도 11은 상대습도 (RH) 32 % 조건에서의 실시예 및 비교예에 따른 고분자 전해질막의 연료전지에서의 전류밀도에 따른 전압을 나타낸 것이다.
도 12는 상대습도(RH) 50% / 32% 조건에서의 실시예 및 비교예에 따른 고분자 전해질막의 연료전지에서의 0.6V에서의 전류밀도 값을 나타낸 것이다.
도 13은 실시예 및 비교예의 다공성 지지체의 표면을 측정한 전자주사현미경 사진이다.
DI water 접촉각(°) |
Diiodomethane 접촉각(°) |
표면에너지 (mN/m) |
|
다공성 지지체의 코팅면 | 83.8 | 66.1 | 27.71 |
다공성 지지체의 코팅반대면 | 122.1 | 95.5 | 10.59 |
코팅처리전 다공성 지지체 | 123.1 | 96.2 | 10.28 |
20, 21: 촉매층
40, 41: 기체확산층
50: 캐소드
51: 애노드
60: 스택
70: 산화제 공급부
80: 연료 공급부
81: 연료 탱크
82: 펌프
Claims (16)
- 청구항 1에 있어서, 상기 고분자층은 상기 다공성 지지체의 두께방향으로 상기 다공성 지지체의 일측 표면에만 구비되는 것인 강화막.
- 청구항 1에 있어서, 상기 고분자층의 두께는 상기 다공성 지지체의 일측 표면으로부터 1nm 이상 20nm 이하인 것인 강화막.
- 청구항 1에 있어서, 상기 고분자층은 상기 다공성 지지체의 일면으로부터 상기 다공성 지지체의 두께의 50% 이내에 위치하는 것인 강화막.
- 청구항 1에 있어서, 상기 강화막의 총 중량을 기준으로, 상기 고분자층의 함량은 0.1 중량% 이상 10 중량% 이하인 것인 강화막.
- 청구항 1에 있어서, 상기 1가의 유기기는 하기 화학식 2로 표시되는 것인 강화막:
[화학식 2]
상기 화학식 2에서,
R3 내지 R7 중 적어도 하나는 각각 독립적으로 1차 아민 (primary amine), 2차 아민 (secondary amine), 니트릴 (nitrile), 알데하이드 (aldehyde), 이미다졸 (imidazole), 아자이드(azide), 할로겐화물 (halide), 폴리헥사메틸렌 디티오카보네이트 (polyhexamethylene dithiocarbonate), 하이드록실 (hydroxyl), 카르복실산 (carboxylic acid), 카르복실에스터 (carboxylic ester) 및 카르복사미드(carboxamide)로 구성된 군에서 선택된 1종이며, 나머지는 수소이고,
R2 및 R3 내지 R7 중 인접한 치환기는 서로 겹합하여 고리를 형성할 수 있으며,
여기서, 는 결합위치를 나타낸다. - 청구항 6에 있어서, 상기 R7은 1차 아민인 것인 강화막.
- 청구항 1에 있어서, 상기 다공성 지지체의 두께방향으로 상기 다공성 지지체의 타면에 구비되는 소수성 고분자층을 더 포함하는 것인 강화막.
- 애노드; 캐소드; 및 상기 애노드 및 캐소드 사이에 구비된 청구항 1 내지 10 중 어느 한 항에 따른 강화막을 포함하는 것인 막 전극 접합체.
- 청구항 11에 있어서, 상기 고분자층이 구비된 강화막의 일측은 상기 애노드 또는 캐소드 측에 위치하는 것인 막 전극 접합체.
- 청구항 11의 막 전극 접합체를 포함하는 연료 전지.
- 청구항 14에 있어서, 상기 제1 용액의 총 중량을 기준으로, 상기 화합물의 함량은 0.1 중량% 이상 10 중량% 이하인 것인 강화막의 제조방법.
- 청구항 14에 있어서, 상기 제2 용액의 함침단계 전에, 소수성 고분자를 포함하는 제3 용액을 다공성 지지체의 타면에 코팅하는 단계를 더 포함하는 강화막의 제조방법.
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