KR102714433B1 - 내구성이 향상된 연료전지용 막-전극 접합체 및 이를 포함하는 고분자 전해질막 연료전지 - Google Patents
내구성이 향상된 연료전지용 막-전극 접합체 및 이를 포함하는 고분자 전해질막 연료전지 Download PDFInfo
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Abstract
Description
도 2는 본 발명에 따른 산화방지제에 대한 X선 회절(XRD; X-ray diffraction) 분석 결과이다.
도 3은 본 발명에 따른 산화방지제에 대한 BET 표면적을 측정한 결과이다.
도 4는 메틸 바이올렛(Methyl Violet) 기법을 통해 본 발명에 따른 산화방지제의 산화 방지성을 평가한 결과이다.
도 5는 자외-가시선 분광법(UV-Visible Spectroscopy)을 통해 본 발명에 따른 산화방지제의 산화 방지성을 평가한 결과이다.
도 6은 용해 시험(Dissolution Test)을 통해 본 발명에 따른 산화방지제의 장기 안정성을 평가한 결과이다.
구분 | 조성 | 열처리 온도[℃] | 열처리 시간[시간] |
실시예1(SDC-400) | Sm0 .2Ce0 .8O2 -δ δ는 상기 화합물을 전기적 중성으로 하는 산소 공공 값이다. |
400 | 2 |
실시예2(SDC-600) | 600 | 2 | |
실시예3(SDC-800) | 800 | 2 | |
실시예4(SDC-1000) | 1,000 | 2 | |
비교예1(SDC-NA) | 열처리 미실시 | 열처리 미실시 | |
비교예2(SDC-1100) | 1,100 | 2 |
구분 | 결정 크기[nm] |
실시예1(SDC-400) | 6.8 |
실시예2(SDC-600) | 13.3 |
실시예3(SDC-800) | 22.4 |
실시예4(SDC-1000) | 43.8 |
비교예1(SDC-NA) | 5.1 |
비교예2(SDC-1100) | 365.8 |
구분 | 열처리 온도[℃] | 미세 구조 특성 | 산화 방지성 | 장기 안정성 | |
결정 크기 [nm] | BET 표면적 [m2/g] | ||||
비교예1 | 열처리 미실시 | 5.1 | 199.2 | 탁월 | 불량 |
실시예1 | 400 | 6.8 | 157.0 | 탁월 | 우수 |
실시예2 | 600 | 13.3 | 68.2 | 탁월 | 우수 |
실시예3 | 800 | 22.4 | 36.1 | 우수 | 탁월 |
실시예4 | 1000 | 43.8 | 17.1 | 우수 | 탁월 |
비교예2 | 1100 | 365.8 | 1.8 | 불량 | 탁월 |
Claims (9)
- 전해질막; 및
상기 전해질막의 양면에 형성된 한 쌍의 전극을 포함하고,
상기 전해질막 및 전극 중 적어도 어느 하나에 산화방지제가 포함되며,
상기 산화방지제는 열처리된 사마륨 도핑 세륨 산화물(Sm-Doped Cerium Oxide)이며,
상기 전해질막은 과불소 술폰산계 이오노머 및 상기 산화방지제를 포함하고,
상기 산화방지제를 과불소 술폰산계 이오노머의 전체 중량을 기준으로 0.05중량% 내지 20중량% 포함하며,
상기 산화방지제는 그 결정 크기가 5.5 nm 내지 60 nm이고, BET 표면적이 10 m2/g 내지 190 m2/g인 것인 내구성이 향상된 연료전지용 막-전극 접합체. - 제1항에 있어서,
상기 산화방지제는 하기 화학식1로 표현되는 것인 내구성이 향상된 연료전지용 막-전극 접합체.
[화학식1]
SmxCe1 - xO2 -δ
여기서, 0<x≤0.5이고, 상기 δ는 상기 화학식 1의 상기 화합물을 전기적 중성으로 하는 산소 공공 값이다. - 제1항에 있어서,
상기 산화방지제는 100 ℃ 내지 1,000 ℃의 온도로 열처리된 것인 내구성이 향상된 연료전지용 막-전극 접합체. - 제1항에 있어서,
상기 산화방지제는 10분 내지 10시간 동안 열처리된 것인 내구성이 향상된 연료전지용 막-전극 접합체. - 제1항에 있어서,
상기 산화방지제는 XRD 스펙트럼의 2Θ = 28±1.0°, 32±1.0°, 47±1.0° 및 56±1.0°에서 주요 회절 피크를 갖는 것인 내구성이 향상된 연료전지용 막-전극 접합체. - 삭제
- 삭제
- 삭제
- 제1항의 막-전극 접합체를 포함하는 고분자 전해질막 연료전지.
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US16/131,843 US10714778B2 (en) | 2017-12-27 | 2018-09-14 | Membrane-electrode assembly for fuel cells having improved durability and a polymer electrolyte membrane fuel cell including the same |
DE102018215925.4A DE102018215925A1 (de) | 2017-12-27 | 2018-09-19 | Membran-Elektroden-Bauteil für Brennstoffzellen mit verbesserter Haltbarkeit und Polymerelektrolytmembran-Brennstoffzelle, die dieses umfasst |
CN201811103421.1A CN109980255B (zh) | 2017-12-27 | 2018-09-20 | 用于燃料电池的膜-电极组件及聚合物电解质膜燃料电池 |
JP2018178040A JP7233190B2 (ja) | 2017-12-27 | 2018-09-21 | 耐久性が向上した燃料電池用膜-電極接合体及びそれを含む高分子電解質膜燃料電池 |
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KR20210073716A (ko) * | 2019-12-11 | 2021-06-21 | 현대자동차주식회사 | 내구성이 향상된 연료전지용 전해질막의 제조방법 |
KR20210120206A (ko) * | 2020-03-26 | 2021-10-07 | 현대자동차주식회사 | 연료전지용 고산화방지성 산화방지제, 이를 포함하는 전해질막 및 막-전극 접합체 |
KR102298989B1 (ko) * | 2020-12-07 | 2021-09-06 | 현대자동차주식회사 | 이온 전도성이 높고 물 배출이 용이한 전해질막 및 이의 제조방법 |
KR102809105B1 (ko) * | 2021-06-17 | 2025-05-15 | 코오롱인더스트리 주식회사 | 질화붕소나노튜브를 포함한 연료전지용 고분자 전해질막 및 이를 포함하는 연료전지 |
US20230099815A1 (en) * | 2021-09-29 | 2023-03-30 | Hyzon Motors Inc. | Fuel cells with improved membrane life |
CN114843569B (zh) * | 2022-04-02 | 2023-12-26 | 湖北大学 | 一种质子-氧离子混合导体电解质制备方法、产品以及电池 |
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CN109980255A (zh) | 2019-07-05 |
JP2019117786A (ja) | 2019-07-18 |
CN109980255B (zh) | 2023-03-17 |
JP7233190B2 (ja) | 2023-03-06 |
KR20190079139A (ko) | 2019-07-05 |
US20190198903A1 (en) | 2019-06-27 |
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