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Each fuel cell has a layered structure, with two electrodes conductive planes to porous structure separated by an electrolyte, which can be solid or liquid (acid). This material is carefully chosen because must possess the qualities that are the basis of the operation of every single cell.In fact, it must be easily penetrated by some types of ions and impermeable to electron charges. The electrodes instead act as an anode, while the other as the cathode, where they place the chemical reactions main. Also in the structure and present a catalyst which is responsible for the initiation of the reaction, keeping it at a suitable speed.In fact, the temperature is relatively low (60-100 °C) for which you do not have enough energy for which the process occurs automatically. The catalyst is the most expensive part of the structure, since it is usually made from precious metals such as platinum, ruthenium and Palladio.Questo process then may be up to when it is provided, to the cell,The fuel (hydrogen) and the oxidant (air or oxygen).
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