A compression device for use with a solid oxide fuel cell stack is formed from a hermetically sealed cylindrical shell filled with an expansion fluid such as air. The shell has a corrugated sidewall which permits axial deformation as the compression device is heated. The shell applies a compressive frame...http://www.google.com/patents/US6703154?utm_source=gb-gplus-sharePatent US6703154 - Solid oxide fuel cell compression bellows
