KR20180076907A - 전극의 제조 방법, 이에 의하여 제조된 전극, 상기 전극을 포함하는 막-전극 어셈블리, 그리고 상기 막-전극 어셈블리를 포함하는 연료 전지 - Google Patents
전극의 제조 방법, 이에 의하여 제조된 전극, 상기 전극을 포함하는 막-전극 어셈블리, 그리고 상기 막-전극 어셈블리를 포함하는 연료 전지 Download PDFInfo
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- KR20180076907A KR20180076907A KR1020160181590A KR20160181590A KR20180076907A KR 20180076907 A KR20180076907 A KR 20180076907A KR 1020160181590 A KR1020160181590 A KR 1020160181590A KR 20160181590 A KR20160181590 A KR 20160181590A KR 20180076907 A KR20180076907 A KR 20180076907A
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- H—ELECTRICITY
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- H01M4/00—Electrodes
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- H01M4/88—Processes of manufacture
- H01M4/8825—Methods for deposition of the catalytic active composition
- H01M4/8828—Coating with slurry or ink
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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
- H01M4/8663—Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers
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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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- 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
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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
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Abstract
상기 전극의 제조 방법은 촉매의 표면에 이오노머를 나노 두께로 코팅함으로써, 촉매 등의 분산성을 증대시켜 혼합을 용이하게 하고, 촉매 표면에 이오노머가 균일하게 분포하도록 하여, 촉매와 이오노머의 활용율을 증대시켜 각종 성능을 향상시키고, 촉매와 이오노머의 결합 효율을 증대시켜 내구성을 증대시킬 수 있다.
Description
도 2는 본 발명의 일 실시예에 따른 막-전극 어셈블리를 개략적으로 나타낸 단면도이다.
도 3은 본 발명의 일 실시예에 따른 연료 전지의 전체적인 구성을 도시한 모식도이다.
도 4 및 5는 각각 본 발명의 실시예 1 및 비교예 1에서 제조된 전극의 투과 전자 현미경(TEM) 사진이다.
도 6은 본 발명의 실시예 1 및 비교예 1에서 제조된 막-전극 접합체의 성능 평가 결과를 나타내는 그래프이다.
2: 촉매 금속 입자
3: 이오노머
20, 20': 전극
30, 30': 촉매층
40, 40': 전극기재
50: 이온 교환막
100: 막-전극 어셈블리
200: 연료 전지
210: 연료 공급부 220: 개질부
230: 스택 231: 제 1 공급관
232: 제 2 공급관 233: 제 1 배출관
234: 제 2 배출관 240: 산화제 공급부
Claims (13)
- 촉매와 이오노머를 포함하는 전극 형성용 조성물을 제조하는 단계,
상기 전극 형성용 조성물에 저주파 음향 에너지(low-frequency acoustic energy)를 가하여 공진 혼합(resonant vibratory mixing)하여 상기 촉매 표면에 상기 이오노머를 코팅하는 단계, 그리고
상기 전극 형성용 조성물을 코팅하여 전극을 제조하는 단계
를 포함하는 전극의 제조 방법. - 제 1 항에 있어서,
상기 저주파 음향 에너지는 10 내지 100 Hz의 주파수를 가지는 것인 전극의 제조 방법. - 제 1 항에 있어서,
상기 공진 혼합은 상기 촉매와 이오노머를 포함하는 전극 형성용 조성물에 10 내지 100 G의 가속도를 가하여 이루어지는 것인 전극의 제조 방법. - 제 1 항에 있어서,
상기 공진 혼합은 30 초 내지 30 분 동안 이루어지는 것인 전극의 제조 방법. - 제 1 항에 있어서,
상기 전극 형성용 조성물은 용매를 더 포함하는 것인 전극의 제조 방법. - 촉매 및 이오노머를 포함하며,
상기 이오노머는 상기 촉매의 표면에 5 nm 이하의 두께로 코팅된 것인 전극. - 제 6 항에 있어서,
상기 이오노머는,
상기 촉매 및 상기 이오노머를 포함하는 전극 형성용 조성물에 저주파 음향 에너지(low-frequency acoustic energy)를 가하여 공진 혼합(resonant vibratory mixing)하여 상기 촉매 표면에 코팅된 것인 전극. - 제 6 항에 있어서,
상기 촉매 표면에 5 nm 이하의 두께로 코팅된 이오노머는 상기 이오노머 전체 중량에 대하여 55 중량% 내지 95 중량%인 것인 전극. - 제 6 항에 있어서,
상기 촉매 표면에 코팅되지 않고 응집된(aggregated) 이오노머는 상기 이오노머 전체 중량에 대하여 0 중량% 내지 45 중량%인 것인 전극. - 제 6 항에 있어서,
상기 촉매는 촉매 금속 입자 단독 또는 담체에 담지된 촉매 금속 입자를 포함하는 것인 전극. - 제 10 항에 있어서,
하기 수학식 1로 표시되는 상기 담체에 대한 상기 이오노머의 중량비(I/C ratio)는 0.75 내지 1.6인 것인 전극.
[수학식 1]
I/C ratio = WI / WC
WI = 이오노머(Ionomer)의 전체 중량
WC = 담체(Carrier)의 전체 중량 - 서로 대향하여 위치하는 애노드 전극과 캐소드 전극, 그리고
상기 애노드 전극과 캐소드 전극 사이에 위치하는 이온 교환막을 포함하며,
상기 애노드 전극, 상기 캐소드 전극 및 이 둘 모두로 이루어진 군에서 선택되는 어느 하나는 상기 제 6 항에 따른 전극을 포함하는 것인 막-전극 어셈블리. - 제 12 항에 따른 막-전극 어셈블리를 포함하는 것인 연료 전지.
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KR1020160181590A KR102189064B1 (ko) | 2016-12-28 | 2016-12-28 | 전극의 제조 방법, 이에 의하여 제조된 전극, 상기 전극을 포함하는 막-전극 어셈블리, 그리고 상기 막-전극 어셈블리를 포함하는 연료 전지 |
PCT/KR2017/015301 WO2018124645A1 (ko) | 2016-12-28 | 2017-12-22 | 전극의 제조 방법, 이에 의하여 제조된 전극, 상기 전극을 포함하는 막-전극 어셈블리, 그리고 상기 막-전극 어셈블리를 포함하는 연료 전지 |
JP2019521674A JP6895517B2 (ja) | 2016-12-28 | 2017-12-22 | 電極の製造方法、これによって製造された電極、前記電極を含む膜−電極アセンブリー、そして前記膜−電極アセンブリーを含む燃料電池 |
EP17887671.0A EP3536664B1 (en) | 2016-12-28 | 2017-12-22 | Method for manufacturing electrode, electrode manufactured thereby, membrane-electrode assembly comprising same electrode, and fuel cell including same membrane-electrode assembly |
US16/343,522 US11283093B2 (en) | 2016-12-28 | 2017-12-22 | Method for manufacturing electrode, electrode manufactured thereby, membrane-electrode assembly comprising same electrode, and fuel cell including same membrane-electrode assembly |
CN201780066307.3A CN109890752A (zh) | 2016-12-28 | 2017-12-22 | 电极的制备方法,由该法制备的电极,含该电极的膜电极组件及含该膜电极组件的燃料电池 |
JP2020099641A JP7083003B2 (ja) | 2016-12-28 | 2020-06-08 | 電極の製造方法、これによって製造された電極、前記電極を含む膜-電極アセンブリー、そして前記膜-電極アセンブリーを含む燃料電池 |
US17/592,595 US11557782B2 (en) | 2016-12-28 | 2022-02-04 | Method for manufacturing electrode, electrode manufactured thereby, membrane-electrode assembly comprising same electrode, and fuel cell including same membrane-electrode assembly |
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KR20200036794A (ko) * | 2018-09-28 | 2020-04-07 | 코오롱인더스트리 주식회사 | 금속 산화물-탄소 복합체, 상기 금속 산화물-탄소 복합체의 제조 방법, 촉매, 상기 촉매의 제조 방법, 상기 촉매를 포함하는 전극, 상기 전극을 포함하는 막-전극 어셈블리 및 상기 막-전극 어셈블리를 포함하는 연료 전지 |
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KR20200036794A (ko) * | 2018-09-28 | 2020-04-07 | 코오롱인더스트리 주식회사 | 금속 산화물-탄소 복합체, 상기 금속 산화물-탄소 복합체의 제조 방법, 촉매, 상기 촉매의 제조 방법, 상기 촉매를 포함하는 전극, 상기 전극을 포함하는 막-전극 어셈블리 및 상기 막-전극 어셈블리를 포함하는 연료 전지 |
KR20200080151A (ko) * | 2018-12-26 | 2020-07-06 | 코오롱인더스트리 주식회사 | 촉매, 그 제조방법, 그것을 포함하는 전극, 그것을 포함하는 막-전극 어셈블리, 및 그것을 포함하는 연료 전지 |
KR20200080152A (ko) * | 2018-12-26 | 2020-07-06 | 코오롱인더스트리 주식회사 | 촉매, 이의 제조 방법, 이를 포함하는 전극, 이를 포함하는 막-전극 어셈블리, 및 이를 포함하는 연료 전지 |
US11837735B2 (en) | 2018-12-26 | 2023-12-05 | Kolon Industries, Inc. | Catalyst, method for producing same, electrode comprising same, membrane-electrode assembly comprising same, and fuel cell comprising same |
KR20200114423A (ko) * | 2019-03-28 | 2020-10-07 | 현대자동차주식회사 | 전자절연층이 도입된 막-전극 접합체의 전해질막 및 이의 제조방법 |
US12034192B2 (en) * | 2019-09-30 | 2024-07-09 | Kolon Industries, Inc. | Ionomer dispersion having high dispersion stability, method for producing same, and polymer electrolyte membrane produced using same |
WO2021066544A1 (ko) * | 2019-09-30 | 2021-04-08 | 코오롱인더스트리 주식회사 | 높은 분산 안정성을 갖는 이오노머 분산액, 그 제조방법, 및 그것을 이용하여 제조된 고분자 전해질막 |
EP4040549A4 (en) * | 2019-09-30 | 2023-10-25 | Kolon Industries, Inc. | Ionomer dispersion having high dispersion stability, method for producing same, and polymer electrolyte membrane produced using same |
US20220285715A1 (en) * | 2019-09-30 | 2022-09-08 | Kolon Industries, Inc. | Ionomer dispersion having high dispersion stability, method for producing same, and polymer electrolyte membrane produced using same |
KR20210038388A (ko) * | 2019-09-30 | 2021-04-07 | 코오롱인더스트리 주식회사 | 높은 분산 안정성을 갖는 이오노머 분산액, 그 제조방법, 및 그것을 이용하여 제조된 고분자 전해질막 |
KR20210147380A (ko) * | 2020-05-28 | 2021-12-07 | 코오롱인더스트리 주식회사 | 연료전지용 혼합 촉매, 그 제조방법, 그것을 이용한 전극 형성방법, 및 그것을 포함하는 막-전극 어셈블리 |
EP4160757A4 (en) * | 2020-05-28 | 2025-07-09 | Kolon Inc | MIXED CATALYST FOR FUEL CELL, PREPARATION METHOD THEREOF, ELECTRODE FORMATION METHOD USING THE SAME, AND MEMBRANE-ELECTRODE ASSEMBLY COMPRISING THE SAME |
US11652214B2 (en) | 2020-05-28 | 2023-05-16 | Kolon Industries, Inc. | Mixed catalyst for fuel cell, method for preparing same, method for forming electrode by using same, and membrane-electrode assembly comprising same |
WO2022145771A1 (ko) * | 2020-12-31 | 2022-07-07 | 코오롱인더스트리 주식회사 | 연료전지용 촉매층, 이의 제조 방법, 이를 포함하는 막-전극 접합체 및 연료전지 |
KR20220097235A (ko) * | 2020-12-31 | 2022-07-07 | 코오롱인더스트리 주식회사 | 연료전지용 촉매층, 이의 제조 방법, 이를 포함하는 막-전극 접합체 및 연료전지 |
WO2022145748A1 (ko) * | 2020-12-31 | 2022-07-07 | 코오롱인더스트리 주식회사 | 막-전극 어셈블리 및 이를 포함하는 연료 전지 |
KR20230090577A (ko) * | 2021-12-15 | 2023-06-22 | 코오롱인더스트리 주식회사 | 고분자 전해질막, 이의 제조 방법 및 이를 포함하는 막-전극 어셈블리 |
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