Tension of a high-temperature fuel cell stack

The invention relates to a method for retaining a high temperature fuel cell stack, in which an insulation is arranged between the means for clamping the stack and the high-temperature fuel cell stack. The advantage of the invention is that the components of the actual clamping device (e.g., tenter, tie rod, press-on springs and nuts) subject by providing an insulation of an operating temperature of regularly below 100 ° C, which can be made of inexpensive standard materials and standard components. At the same time a reliable and long-term stable bracing of the stack is achieved. Heating the stack to operating temperature can be carried out in the stack integrated heating elements or by previously heated gases for example, introduced inside the insulation heating coils or by.