KR102817406B1 - 기계적 강성 및 수소 이온 전도성이 향상된 연료전지용 막-전극 접합체 및 그 제조방법 - Google Patents
기계적 강성 및 수소 이온 전도성이 향상된 연료전지용 막-전극 접합체 및 그 제조방법 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 전해질막에 이오노머 복합막을 적용한 일실시예를 나타낸 것이다.
도 3은 본 발명의 막-전극 접합체 제조 과정에 대한 순서도를 나타낸 것이다.
도 4는 본 발명의 실시예 및 비교예의 전해질막을 나타낸 것이다.
도 5는 실시예 및 비교예의 전해질막의 수분 함습 특성 결과 그래프를 나타낸 것이다.
도 6은 실시예 및 비교예의 전해질막의 온도에 따른 수소 이온 전도도 특성 결과 그래프를 나타낸 것이다.
도 7은 실시예 및 비교예의 전해질막의 상대습도에 따른 수소 이온 전도도 특성 결과 그래프를 나타낸 것이다.
| 실시예1 | 실시예2 | 실시예3 | 실시예4 | |
| PGO | 0.5중량% | 1.0중량% | 1.5중량% | 2.0중량% |
20: 포스폰산이 기능화된 그래핀 산화물 (a2): 실시예1
30: 다공성 강화필름 (a3): 실시예2
A: 전해질막 (a4): 실시예3
B: 이오노머 복합막 (a5): 실시예4
Claims (17)
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- 포스폰산 전구체 물질 및 그래핀 산화물을 혼합하여 제1 혼합물을 제조하는 단계;
상기 제1 혼합물에 활성 첨가물을 투입 및 분산하여 제2 혼합물을 제조하는 단계;
상기 제2 혼합물을 액상 및 고상으로 분리하는 단계;
상기 분리된 고상을 건조하여 고상 분말을 제조하는 단계;
상기 고상 분말을 세척하여 포스폰산이 기능화된 그래핀 산화물(Phosphonic Acid Functionalized Graphene Oxide, PGO)을 얻는 단계;
상기 포스폰산이 기능화된 그래핀 산화물을 과불소 술폰산계 이오노머 용액과 혼합하여 제3 혼합물을 제조하는 단계;
상기 제3 혼합물을 코팅 및 건조하여 전해질막을 제조하는 단계; 및
상기 전해질막의 양면에 전극을 부착하는 단계;를 포함하는 것을 특징으로 하는 연료전지용 막-전극 접합체 제조방법. - 제10항에 있어서,
상기 포스폰산 전구체 물질은 트라이에틸포스폰산염(Triethylphosphite, P(OEt)3)을 포함하는 것을 특징으로 하는 연료전지용 막-전극 접합체 제조방법. - 제10항에 있어서,
상기 그래핀 산화물은 상기 포스폰산 전구체 물질 100중량부 기준으로 0.1 내지 1.0중량부 혼합하는 것을 특징으로 하는 연료전지용 막-전극 접합체 제조방법. - 제10항에 있어서,
상기 활성 첨가물은 브로민화 리튬(LiBr)을 포함하는 것을 특징으로 하는 연료전지용 막-전극 접합체 제조방법. - 제10항에 있어서,
상기 활성 첨가물은 상기 포스폰산 전구체 물질 100중량부 기준으로 0.2 내지 2.0중량부 투입하는 것을 특징으로 하는 연료전지용 막-전극 접합체 제조방법. - 제10항에 있어서,
상기 고상 분말을 테트라하이드로퓨란(Tetrahydrofuran), 디메틸포름아마이드(Dimethylformamide), 물 및 이들의 조합으로 이루어진 군에서 선택된 것으로 세척하여 포스폰산이 기능화된 그래핀 산화물을 얻는 것을 특징으로 하는 연료전지용 막-전극 접합체 제조방법. - 제10항에 있어서,
상기 전해질막은 상기 포스폰산이 기능화된 그래핀 산화물을 0.01중량% 내지 10.0중량%를 포함하는 것을 특징으로 하는 연료전지용 막-전극 접합체 제조방법. - 제10항에 있어서,
상기 전해질막의 양면에 전극을 부착하기 전, 상기 전해질막의 양면에 이오노머 복합막을 부착하는 단계를 더 포함하고,
상기 이오노머 복합막은 다공성 강화필름의 기공에 과불소 술폰산계 이오노머가 함침된 것을 특징으로 하는 연료전지용 막-전극 접합체 제조방법.
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| KR1020190023394A KR102817406B1 (ko) | 2019-02-27 | 2019-02-27 | 기계적 강성 및 수소 이온 전도성이 향상된 연료전지용 막-전극 접합체 및 그 제조방법 |
| US16/675,743 US11196070B2 (en) | 2019-02-27 | 2019-11-06 | Membrane-electrode assembly for fuel cells with improved mechanical strength and proton conductivity and method of manufacturing the same |
| DE102019217635.6A DE102019217635A1 (de) | 2019-02-27 | 2019-11-15 | Membran-elektroden anordnung für brennstoffzellen mit erhöhter mechanischer festigkeit und protonenleitfähigkeit und verfahren zu deren herstellung |
| CN201911128101.6A CN111628200B (zh) | 2019-02-27 | 2019-11-18 | 具有改进机械强度和质子传导率的燃料电池的膜-电极组件及其制造方法 |
| KR1020250042903A KR20250048429A (ko) | 2019-02-27 | 2025-04-02 | 기계적 강성 및 수소 이온 전도성이 향상된 연료전지용 막-전극 접합체 |
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| US20160036081A1 (en) * | 2013-02-12 | 2016-02-04 | University Of Florida Research Foundation, Inc. | Graphene-Based Proton Exchange Membrane for Direct Methanol Fuel Cells |
| JP2014188496A (ja) | 2013-03-28 | 2014-10-06 | Panasonic Corp | 触媒 |
| KR101550846B1 (ko) | 2014-01-29 | 2015-09-07 | 한국과학기술연구원 | 단일공정을 이용한 탄소소재의 다원소 도핑방법 및 그 용도 |
| US10205190B2 (en) * | 2014-08-28 | 2019-02-12 | Samsung Electronics Co., Ltd. | Composite electrolyte including polymeric ionic liquid and inorganic particles and lithium battery including the same |
| CN105742677B (zh) * | 2016-02-23 | 2019-03-22 | 天津大学 | Nafion/磷酸化氧化石墨烯杂化膜及制备和应用 |
| KR20180017344A (ko) | 2016-08-09 | 2018-02-21 | 서울대학교산학협력단 | 고분자 전해질 막 및 그 형성 방법 |
| WO2018204702A1 (en) * | 2017-05-05 | 2018-11-08 | Arnold Anne M | Phosphate functionalized graphene oxide based bone scaffolds |
| CN107244667B (zh) * | 2017-05-23 | 2019-10-01 | 深圳大学 | 一种两亲性气凝胶及制备方法 |
| CN108570072B (zh) * | 2018-05-28 | 2020-02-07 | 新乡学院 | 一种合成膦酸改性石墨烯或膦酸酯改性石墨烯的方法 |
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