GAS-DIFFUSING DEVICE FOR DECREASING HEAD LOSSES

A gas-diffusing device, including a superposition of a layer of composite material including electrically conductive fibres and a polymerized resin coating said conductive fibres; a first electrically conductive layer having an open porosity between first and second faces and including a first void in the second face, the first face making electrical contact with the conductive fibres of the layer of composite material, the polymerized resin coating one portion of the first conductive layer on the first face.