| 摘要 |
<p>Methods of treating the surface of metals, such as aluminum, so that they can withstand the corrosive conditions in polymer electrolyte membrane, including those types known as proton exchange membrane, (PEM), fuel cells and similar electrochemical environments and still maintain a high level of electrical and thermal conductivity over extended periods of time, are disclosed. A conductive polymer outer layer (4) used in combination with an intermediate layer (2) between the conductive polymer and a core metal, that comprises a thin layer (3) of silver, or other noble metal, at the interface between the conductive polymer and an underlying metal layer (1), are compatible with the requirements of PEM fuel cells. Such treated metals can be formed into bipolar plates or end plates after receiving the coatings, or the conductive polymer layer can be applied or shaped into specifically required forms, alternatively the core metal can be previously formed into the required physical form and then treated on its surfaces so as to realise the benefits of this invention.</p> |
