NOVELTY - Recycling a bipolar plate including a titanium or titanium oxide layer and a conductive layer deposited on the titanium oxide layer, comprises soaking the bipolar plate in a container including an acid solution that dissolves the titanium or titanium oxide layer; skimming conductive material from the conductive layer that is floating on the acid solution to remove it from the container after the titanium or titanium oxide layer has dissolved; heating the acid solution to evaporate the acid solution; and removing the titanium or titanium oxide from the container.    USE - For recycling a bipolar plate, preferably stainless steel bipolar plate including titanium or titanium oxide and a conductive layer (i.e. gold or ruthenium oxide layer) deposited on the titanium or titanium oxide layer, for use in another fuel cell stack (claimed).    ADVANTAGE - The method recovers ruthenium oxide or gold and titanium from a bipolar plate at the end of the life of a fuel cell stack to use these materials in other fuel cell stacks.    DETAILED DESCRIPTION - Recycling a bipolar plate including a titanium or titanium oxide layer and a conductive layer deposited on the titanium oxide layer, comprises soaking the bipolar plate in a container including an acid solution that dissolves the titanium or titanium oxide layer; skimming conductive material from the conductive layer that is floating on the acid solution to remove it from the container after the titanium or titanium oxide layer has dissolved; heating the acid solution to evaporate the acid solution; and removing the titanium or titanium oxide from the container after the acid solution has evaporated. The acid solution includes water, 25% nitric acid (HNO3), and 2% hydrofluoric acid (HF); or water, 1 M sulfuric acid (H2SO4), and 0.1 M HF. The conductive material is ruthenium oxide, iridium oxide, gold, or platinum.    DESCRIPTION OF DRAWING(S) - The drawing is a flow chart diagram showing a method for recycling a bipolar plate.