A membrane electrode assembly comprises an ion-conducting membrane; a first electrocatalyst layer having a surface facing the membrane; a first electronically-conducting porous gas diffusion substrate facing the other surface of the first electrocatalyst layer; and a first film member interposed between the membrane and the first electrocatalyst layer. The first electrocatalyst layer has an edge region and a central region, and the first film member contacts the edge region and not the central region. A first adhesive layer is present on the surface of the first film member facing the first electrocatalyst layer, and the first adhesive layer adheres the first film member to the first electrocatalyst layer, impregnates through the first electrocatalyst layer, and impregnates into the first gas diffusion substrate.
申请公布号
CA2576676(A1)
申请公布日期
2006.03.30
申请号
CA20052576676
申请日期
2005.09.22
申请人
JOHNSON MATTHEY PUBLIC LIMITED COMPANY;GENERAL MOTORS CORPORATION
发明人
YAN, SUSAN G.;DE ROUFFIGNAC, CATHERINE HELEN;GASTEIGER, HUBERT;HODGKINSON, ADAM JOHN;TREW, PETER ANTHONY;SOMPALLI, BHASKAR;LITTEER, BRIAN A.