Fuel cell or hydrolyzer comprises a central proton exchange membrane, a diffuser layer on one side of the membrane, and a flat electrode having openings and supporting the diffuser layer

摘要

Fuel cell or hydrolyzer comprises a central proton exchange membrane, a diffuser layer on one side of the membrane, and a flat electrode (6) having openings and supporting the diffuser layer. The flat electrode has a base structure (8) containing at least 90 wt.% nickel and having a precious metal coating (9). The precious metal coating completely covers the base structure in the fuel cell or hydrolyzer and contains at least 99% platinum and/or palladium. Preferred Features: The base structure contains at least 96, preferably 99 wt.% nickel. The base structure is produced using a mask. A phosphorus-nickel layer is provided between the base structure and the precious metal coating.