NOVELTY - The method comprises applying a functional layer (14) on an electrically conductive support material (10) by spraying, rolling or pressing, and supplying an electric field such as direct current to the functional layer. The step of supplying the electric field to the function layer comprises applying a voltage (1 kV) between the electrically conductive support material and a counter electrode. The functional layer comprises a catalytic active material, and a hydrophobic material. The catalytic active material comprises metals, metal alloys and/or metal oxides.    USE - The method is useful for manufacturing an electrically conductive composite material that is useful as semihydrophobe gas diffusion electrode such as an oxygen depolarized cathode for an electrolysis device, and an alkaline fuel cell or a membrane fuel cell (all claimed).    ADVANTAGE - The method is capable of efficiently and economically manufacturing an electrically conductive composite material with improved electrical conductivity and electrochemical properties.    DETAILED DESCRIPTION - The method comprises applying a functional layer (14) on an electrically conductive support material (10) by spraying, rolling or pressing, and supplying an electric field such as direct current to the functional layer. The step of supplying the electric field to the function layer comprises applying a voltage (1 kV) between the electrically conductive support material and a counter electrode. The functional layer comprises a catalytic active material, and a hydrophobic material. The catalytic active material comprises metals, metal alloys and/or metal oxides. The electrically conductive support material is formed from metals and/or carbon-containing materials. The support material is formed as net, braided fabric or tissue. An INDEPENDENT CLAIM is included for an electrically conductive composite material.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic cross-sectional view of an electrically conductive composite material.    Electrically conductive composite material (10)    Support material (12)    Functional layer (14)    Gas chamber (16)    Liquid electrolyte. (18)