KR100838117B1 - 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체와그 제조방법 - Google Patents
고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체와그 제조방법 Download PDFInfo
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- H01M8/00—Fuel cells; Manufacture thereof
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
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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
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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
Description
Claims (9)
- 고분자 전해질막과 그 양쪽면에 각각 형성되는 산화전극과 환원전극 및 가스확산층을 포함하는 막전극접합체와 가스켓이 함께 형성된 가스켓 일체형 막전극접합체에 있어서,상기 가스켓 일체형 막전극접합체(200)는 1mm 이하의 두께를 갖는 막전극접합체(201)와, 상기 막전극접합체(201) 주변에 반응가스 혹은 냉각매체가 각 단위전지에 전달되는 다수의 매니폴드 홀(120)이 일체형으로 구비된 가스켓(202)이 구성되어 있으며,상기 가스켓(202)은 일정한 두께를 가지는 평면 가스켓(132)과, 상기 평면가스켓(132)의 일측에 위치되어 다수개의 매니폴드 홀(120)의 테두리에 위치되어 누설을 방지하는 매니폴드 홀 실링부(130)와, 막전극접합체(201)와 경계선에 위치되어 막전극접합체의 일부가 중간 홈에 내삽된 형태로 일체화 되어 반응 가스 및 냉각매체의 교차누설(cross leak)및 외부 누설을 방지하는 막전극접합체 실링부(131)가 일체형으로 구성되어 있음을 특징으로 하는 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체.
- 청구항 1에 있어서, 상기 막전극접합체 실링부(131)는 막전극접합체(201)과 경계선에 위치되어 막전극접합체의 일부가 중간홈에 내삽된 형태로 일체화 된 형상으로서,단면은 물방울의 모양과 비슷한 형상으로 일단부에 홈이 형성되어 있으며, 홈의 내측 끝단부에 연결된 지점(C)은 두께가 가장 두꺼운 지점(B)과 막전극접합체와 평면가스켓과 만나는 지점(D) 사이에 위치하고,평면가스켓에서 시작되는 지점(A)과 두께가 가장 두꺼운 지점(B)까지의 두께가 급진적으로 증가하며,두께가 가장 두꺼운 지점(B)와 막전극접합체와 평면가스켓과 만나는 지점(D) 까지의 두께가 점차적으로 감소되는 형태이고,막전극접합체와 평면가스켓과 만나는 지점(D)에서 두께가 가장 두꺼운 지점(B) 까지의 거리가 평면가스켓에서 시작되는 지점(A)에서 두께가 가장 두꺼운 지점(B)까지의 거리보다 같거나 긴 형상임을 특징으로 하는 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체.
- 청구항 1에 있어서, 상기 평면가스켓(132)은 중심에 변형률이 없는 지지체(300)를 삽입함을 특징으로 하는 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체.
- 청구항 1에 있어서, 상기 평면측 가스켓(132)은 상기 매니폴드 실링부 가스켓(130) 및 막전극접합체 실링부 가스켓(131)과 경도가 서로 다른 것을 특징으로 하는 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체.
- 청구항 6에 있어서, 상기 평면측 가스켓(132)의 쇼아경도는 60~80의 범위임을 특징으로 하는 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체.
- 청구항 6에 있어서, 상기 매니폴드 실링부 가스켓(130) 및 막전극접합체 실링부 가스켓(131)의 쇼아경도는 40~70의 범위임을 특징으로 하는 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체.
- 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체의 제조방법에 있어서,판상이며 중앙부에 형성된 막전극접합체(201)를 중심으로 그 주변에 형성되며 반응가스 혹은 냉각매체가 각 단위전지에 전달되는 다수의 매니폴드 홀(120)이 형성된 가스켓(202)을 막전극접합체와 일체형으로 제조하기 위하여,막전극접합체를 진공흡착장치를 이용하여 진공빨판으로 빨아들여 고정시킨 다음, 오토로더쪽으로 이동하여 진공흡착장치를 조작하여 예비 가스켓일체형 막전극접합체를 이동시킨 다음, 예비 가스켓일체형 막전극접합체가 안치된 오토로다의 이송을 위해 하부에 프레스 하측 형판의 이송을 위해 하측형판을 체결하고, 사출장치로 이송하여, 사출장치의 금형내로 예비 가스켓일체형 막전극접합체가 안치된 오토로다를 이송함과 동시에 하측형판을 분리한 다음, 예비 가스켓일체형 막전극접합체의 테두리의 실링부에 합성고무조성물을 사출한 후에, 다시 하측 형판을 체결하여 프레스장치로 이송하여 프레스장치내로 사출성형된 예비 가스켓일체형 막전극접합체가 안치된 오토로다를 프레스장치로 이송한 다음, 하측형판을 분리한 후, 프레스장치로 90~150℃ 온도에서, 50~300초, 형상압력 50~150kgf/cm2 으로 성형을 완료한 다음, 프레스장치에 성형 완료된 가스켓 일체형 막전극접합체가 안치된 오토로더에서 진공흡착장치를 이용하여 포장공정으로 이동하여 제조함을 특징으로 하는 고분자 전해질형 연료전지의 가스켓 일체형 막전극접합체의 제조방법.
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WO2011056180A1 (en) * | 2009-11-09 | 2011-05-12 | Utc Power Corporation | Fuel cell sealing configuration |
WO2018056569A1 (ko) * | 2016-09-26 | 2018-03-29 | 베너게이트 주식회사 | 셀-가스켓 복합체와 그 형성 방법 및 상기 셀-가스켓 복합체를 포함하는 레독스 흐름 전지 |
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