| 摘要 |
A dimensionally stable gas diffusion electrode and a method for the fabrication thereof are described. The electrode comprises at least an electroconductive catalyst support material to accommodate a catalyst material-containing coating composition and an electrical connection, the catalyst support material (4; 11) being a fabric, bonded fibre web, foam, sintered metal body or felt of electroconductive material, an expanded-metal plate or a metal plate provided with a multiplicity of perforations (2, 8), on top of which plate the catalyst material-containing coating composition (5) is applied, the material, if its inherent stiffness is inadequate, being permanently joined mechanically and electroconductively to a gas-permeable, alkali-resistant metallic baseplate (1; 7), especially comprising nickel or its alloys.
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