COATING SYSTEM, ELECTRODE PLATE COMPRISING A COATING SYSTEM OF SAID TYPE, METHOD FOR PRODUCING SAID ELECTRODE PLATE, AND FUEL CELL, ELECTROLYSIS DEVICE OR REDOX FLOW BATTERY

The invention relates to a coating system (1) for coating a metal substrate (2a) to form an electrode plate (2), comprising at least one top coating (1a) made of a metal oxide, at least one intermediate coating (1b) carrying the top coating (1a), and a base coating (1c) carrying the intermediate coating (1b). The top coating (1a) is formed from a network of nanofibers formed from any one of: a) indium tin oxide, optionally with a third dopant having at least one element from the group comprising carbon, nitrogen, boron, fluorine, hydrogen, phosphorus, sulfur, chlorine, bromine, aluminum, silicon, titanium, chromium, cobalt, nickel, copper, zirconium, niobium, molybdenum, silver, antimony, hafnium, tantalum, tungsten, or b) doped tin oxide, where the first dopant and the second dopant have at least one element from the group comprising carbon, nitrogen, boron, fluorine, hydrogen, phosphorus, sulfur, chlorine, bromine, aluminum, silicon, titanium, chromium, cobalt, nickel, copper, zirconium, niobium, molybdenum