High Temperature Cells

We have already seen that in almost all respects the application of increased temperatures to a fuel cell system increases its ease of operation, since almost all physical and chemical processes are speeded up by higher temperatures. In this chapter we shall consider types of cell which have been designed for operation at even higher temperatures than the high pressure aqueous electrolyte variety described in the last chapter. We shall not be surprised to learn that while fuel cell operation becomes easier at higher temperatures, there are vastly increased problems of construction and operation of peripheral equipment such as pumps, heaters and condensers.