Abstract: The planar arrangement having CAE-unit, both a first flow field for an oxidizing gas and a first interconnect arranged on a first side of the CAE-unit, both a second flow field for a combustible gas and a second interconnect arranged on the other side of the CAE-unit, the CAE-unit having a first and a second electrode layer, and a solid electrolyte sandwiched therebetween. The first electrode layer forming the first side of the CAE-unit and the second electrode layer forming the other side. Further including a circumferential sealing member to prevent either the leakage of oxidizing gas or combustible gas to the environment or the mixing of the two gases. The sealing member includes a glass component bound to the upper surface of the second interconnect, and a sheet of ceramic fiber paper or mica arranged so as to cover a side of the glass component facing the first interconnect.