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    • 5. 发明申请
    • MEMBRANE ELECTRODE ASSEMBLY
    • 膜电极组件
    • WO2009040571A1
    • 2009-04-02
    • PCT/GB2008/050838
    • 2008-09-18
    • JOHNSON MATTHEY PUBLIC LIMITED COMPANYBARNWELL, David EdwardRALPH, Thomas RobertsonTREW, Peter Anthony
    • BARNWELL, David EdwardRALPH, Thomas RobertsonTREW, Peter Anthony
    • H01M8/10H01M8/02
    • H01M8/0273H01M8/0284H01M8/1007
    • A membrane electrode assembly having a peripheral edge region and a central region, wherein said membrane electrode assembly comprises an ion-conducting membrane, first and second electrocatalyst layers disposed either side of the ion- conducting membrane, and first and second gas diffusion layers disposed either side of the first and second electrocatalyst layers respectively, wherein the membrane electrode assembly further comprises an edge protection member, the edge protection member comprising a film layer, a bonding layer, and one or more additives selected from the group consisting of free radical decomposition catalyst, self regenerating antioxidant, hydrogen donors (H-donor) primary antioxidant, free radical scavenger secondary antioxidant, oxygen absorbers (oxygen scavenger) and elemental palladium, said edge protection member being positioned between the membrane and the first and/or second gas diffusion layer at the peripheral edge region of the membrane electrode assembly, and wherein the edge protection member overlaps the first and/or second electrocatalyst layers is disclosed.
    • 一种具有周缘区域和中心区域的膜电极组件,其中所述膜电极组件包括离子传导膜,设置在离子传导膜两侧的第一和第二电催化剂层,以及设置在第一和第二气体扩散层中的第一和第二气体扩散层 其中所述膜电极组件还包括边缘保护构件,所述边缘保护构件包括膜层,粘合层和一种或多种选自自由基分解催化剂的添加剂 ,自我再生抗氧化剂,氢供体(H-供体)主要抗氧化剂,自由基清除剂二级抗氧化剂,氧吸收剂(除氧剂)和元素钯,所述边缘保护构件位于膜与第一和/或第二气体扩散层之间 在膜电极组件的周边边缘区域, 并且其中所述边缘保护构件与所述第一和/或第二电催化剂层重叠。