Gas diffusion electrode, fuel cell, and manufacturing method for the gas diffusion electrode

Abstract

The present invention provides a gas diffusion electrode in which flooding therein is suppressed. The gas diffusion electrode includes: a membrane formed of conductive fibers; a layer formed of conductive fine particles existing while coming into contact with one of surfaces of the membrane; and a catalyst, in which the membrane formed of the conductive fibers includes a region carrying the catalyst and a region free from carrying the catalyst, the region carrying the catalyst including a surface of the membrane formed of the conductive fibers on an opposite side of a surface of the membrane formed of the conductive fibers, which is brought into contact with the layer formed of the conductive fine particles. The catalyst can be formed by a reactive sputtering method.

Dependencies are inferred from the claim text.