Abstract:
A polymer electrolyte comprising an ionic liquid containing an acidic counter ion is provided to ensure excellent proton conductivity, to prevent agglomeration of ions, and to realize a flexible film-like polymer electrolyte useful for a fuel cell. A polymer electrolyte is a polyvinylidene fluoride-hexafluoropropylene(PVdF-HFP) copolymer electrolyte containing 2,3-dimethyl-1-alkylimidazolium dihydrogen phosphate(DMRImH2PO4) as a proton conductor and a plasticizer. The alkyl group(R) in the 2,3-dimethyl-1-alkylimidazolium dihydrogen phosphate(DMRImH2PO4) is butyl or ethyl. The 2,3-dimethyl-1-alkylimidazolium dihydrogen phosphate(DMRImH2PO4) is mixed with PVdF-HFP in a ratio of 7:3.
Abstract translation:提供了包含含有酸性抗衡离子的离子液体的聚合物电解质,以确保优异的质子传导性,防止离子的团聚,并实现可用于燃料电池的柔性膜状聚合物电解质。 聚合物电解质是含有作为质子导体的2,3-二甲基-1-烷基咪唑磷酸二氢酯(DMRImH 2 PO 4)和增塑剂的聚偏氟乙烯 - 六氟丙烯(PVdF-HFP)共聚物电解质。 2,3-二甲基-1-烷基咪唑磷酸二氢盐(DMRImH 2 PO 4)中的烷基(R)是丁基或乙基。 将2,3-二甲基-1-烷基咪唑磷酸二氢盐(DMRImH 2 PO 4)与PVdF-HFP以7:3的比例混合。
Abstract:
A sealing structure of a fuel cell is provided to prevent gaskets from being dislocated when a fuel cell is kept airtightly, facilitate the assembly of all components, and be suitable for improving the airtightness of a fuel cell after assembling. A sealing structure of a fuel cell includes a membrane-electrode assembly(104), and separators(106) that adhere to both surfaces of the membrane-electrode assembly to provide channels through which fuel and air flow. The membrane-electrode assembly comprises a polymer membrane(101), a fuel electrode(102) which adheres to one surface of the polymer membrane and is supplied with fuel to cause electrical oxidation, and an air electrode(103) which adheres to the other surface of the polymer membrane and is supplied with air to cause electrical reduction. The separator has grooves formed on an end part of the inner surface thereof. First gaskets(107a) adhere to end parts of both surfaces of the membrane-electrode assembly. A second gasket(107b) adheres to an end part of the inner surface of the separator and is formed of a material having the elastic modulus greater than that of a constitution material of the first gasket. The first gasket and the second gasket are formed opposite to each other. When the membrane-electrode assembly and the separators are fixed to each other, the first gasket and the second gasket are joined to each other.
Abstract:
본 발명은 연료전지의 기밀 유지 시 가스켓의 어긋남을 방지하고, 다층 막전극복합체(Multi-layer MEA)의 제작 오차를 줄이고, 막전극복합체(MEA)의 생산 비용을 절감할 수 있도록 하는 지지체 삽입형 가스켓 및 그 가스켓을 일체로 갖는 막전극복합체에 관한 것으로서, 막전극복합체에 구비되는 가스켓에 있어서, 지지체가 마련되고, 상기 지지체 상부에 가스켓이 성형되어 있는 것을 특징으로 한다. 막전극복합체, MEA, 가스켓, 지지체, 삽입, 일체, 접착