Chemistry: electrical current producing apparatus – product – and – Having earth feature
Patent
1981-02-12
1982-12-07
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Having earth feature
H01M 492
Patent
active
043627900
ABSTRACT:
The invention relates to a porous electrode comprising at least a porous catalytic layer containing a catalytically active noble-metal, carbon and a polymeric binder and a porous metallic collector is situated on the electrolyte-side of this layer.
According to the invention the catalytic layer has a thickness of less than 80 .mu.m and are the noble-metal particles in the layer situated on the surface and/or in the pores of part of the carbon particles, while the rest of the carbon particles contains no noble-metal particles.
The invention meets the need of an electrode of the type described with a much lower noble-metal content, while the excellent characteristics as regards efficiency, power density and simplicity of manufacture are retained.
REFERENCES:
patent: 3306779 (1967-02-01), Flannery
patent: 3704171 (1972-11-01), Landi
patent: 4091176 (1978-05-01), Alfenaar
Blanchart Alain P. O.
De Brandt Constantine W. M. V. A.
Spaepen Gustaaf J. F.
Van Bogaert Gilbert J. L.
Electrochemische Energieconversie N.V.
Walton Donald L.
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