Product and method of continuously manufacturing thin porous conductive strips by paper-making techniques as electrodes for fuel cells

A method of continuously manufacturing thin porous conductive strips, said strips including at least one layer based on a substance which contains carbon and a binder, said method comprising the successive steps of:

• preparing a very dilute aqueous dispersion of fibres selected only from the group consisting of conductive carbon fibres and conductive graphite fibres;
• adding an aqueous emulsion of a synthetic resin binder to the dispersion;
• initiating precipitation of a part of said binder onto said fibres to form a mixture;
• spreading said mixture in the form of a layer;
• removing at least some of the water from the layer;
• drying the layer;
• and
• setting the thickness of the layer to a required thickness, the proportion by weight of said binder relative to the total weight of binder and conductive fibres in the layer laying between 20 and 99 percent, the method further comprising
• preparing an additional mixture in a dilute aqueous dispersion and
• spreading said additional mixture on the layer formed from said first-mentioned mixture prior to said drying step to form a multi-layer strip.