Table 4.

Features of the different SOFC designs.

SOFC Type	Advantages	Disadvantages
Planar	High power density Simplicity of stack assembly	Low resistivity of thermomechanical stress Difficulties with sealing
Tubular	The resistivity of thermomechanical stress Sealing is simpler than that of planar SOFC	Low power density High internal resistance
Flat-tube	The resistivity of thermomechanical stress Simplicity of stack assembly	Complexity of fabrication of single cell High internal resistance
Monolithic	Sufficiently high power density High thermomechanical strength High durability	Complexity of fabrication Difficulties with the formation of the current contacts Difficulties with sealing