Abstract: The invention is a method for the manufacturing of electroconductive composite materials based on carbon-polymer mixtures meant for use as coatings, electrodes and current collectors in electrical and electrochemical units, particularly in fuel cells. According to the invention, a mixture is formed in two successive steps. During the first step the polymer binder, at a temperature close to its melting point, is mixed in an extruder with the maximum amount of said carbon filler to provide a viscous mixture allowing extrusion as carbon-polymer sticks. In the second step, additional carbon filler is blended with the sticks to provide a necessary electrical and thermal conductivity of the composite material. The sticks and added carbon are mixed in a grinder, which simultaneously, subjects the blend to mechanochemical activation to provide high mechanical strength and high electrical and thermal conductivity. The process provides low production cost for articles obtained from the composite material.