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.

Abstract: The gas distribution element for a fuel cell or an electrolyzing device including a first layer and a second layer, the first and second layers are disposed with a gas distribution structure forming a pattern for a fluid flow of a first reactant fluid. The second layer is a homogenizing element, which has first apertures, wherein at least some of the first apertures have a length and a width, with the length being greater than the width and the length extending in a transverse direction to the main direction of fluid flow.

Abstract: A solid oxide fuel cell or a solid oxide electrolyzing cell, including a plurality of cathode-anode-electrolyte units, each CAE-unit having a first electrode for an oxidizing agent, a second electrode for a combustible gas, and a solid electrolyte between the first electrode and the second electrode and an interconnect between the CAE-units. The interconnect including oxidant inlet and outlet sides defining an oxidant flow direction of the oxidizing agent flow, a first gas distribution element. The first gas distribution element contacts the second electrode of the CAE-unit, and a second gas distribution element with oxidizing agent has channels connecting the oxidant inlet and outlet sides. The oxidizing agent channels are in contact with the first electrode of an adjacent CAE-unit, and a least one bypass channel for the oxidant flow arranged such that the bypass channel is not in contact with the first electrode.

Abstract: A method for operating a solid oxide fuel cell having cathode-anode-electrolyte units, each including a first electrode for an oxidizing agent, a second electrode for combustible gas, and a solid electrolyte there between forming a metal interconnection between the CAE-units. The interconnect including a combustible gas distribution structure, and a second metallic gas distribution element having two channels for the oxidizing agent and separate channels for a tempering fluid. Cooling the second gas distribution element and a base layer of the first gas distribution element with the tempering fluid (O2). Measuring the first and second control temperatures T1 and T2. T1 being the tempering fluid temperature entering the fluid inlet side of the fuel cell. T2 being the tempering fluid temperature leaving the second gas distribution element. Where the amount of tempering fluid supplied to the second gas distribution element is controlled based on the difference between T1 and T2.

Abstract: The gas distribution element for a fuel cell or an electrolyzing device including a first layer and a second layer, the first and second layers are disposed with a gas distribution structure forming a pattern for a fluid flow of a first reactant fluid. The second layer is a homogenizing element, which has first apertures, wherein at least some of the first apertures have a length and a width, with the length being greater than the width and the length extending in a transverse direction to the main direction of fluid flow.

Abstract: The gas distribution element for a fuel cell or an electrolyzing device including a first layer and a second layer, the first and second layers are disposed with a gas distribution structure forming a pattern for a fluid flow of a first reactant fluid. The second layer is a homogenizing element, which has first apertures, wherein at least some of the first apertures have a length and a width, with the length being greater than the width and the length extending in a transverse direction to the main direction of fluid flow.

Abstract: A method for operating a solid oxide fuel cell having cathode-anode-electrolyte units, each including a first electrode for an oxidizing agent, a second electrode for combustible gas, and a solid electrolyte there between forming a metal interconnection between the CAE-units. The interconnect including a combustible gas distribution structure, and a second metallic gas distribution element having two channels for the oxidizing agent and separate channels for a tempering fluid. Cooling the second gas distribution element and a base layer of the first gas distribution element with the tempering fluid (O2). Measuring the first and second control temperatures T1 and T2. T1 being the tempering fluid temperature entering the fluid inlet side of the fuel cell. T2 being the tempering fluid temperature leaving the second gas distribution element. Where the amount of tempering fluid supplied to the second gas distribution element is controlled based on the difference between T1 and T2.

Abstract: A solid oxide fuel cell or a solid oxide electrolyzing cell includes a) a plurality of cathode-anode-electrolyte units, each CAE-unit having a first electrode for an oxidizing agent, a second electrode for a combustible gas, and a solid electrolyte between the first electrode and the second electrode and b) a metal interconnect between the CAE-units. The interconnect having a first gas distribution element and a gas distribution structure for the combustible gas, wherein the first gas distribution element is in contact with the second electrode of the CAE-unit, and a second gas distribution element having channels for the oxidizing agent and including separate channels for a tempering fluid. The channels for the oxidizing agent are in contact with the first electrode of an adjacent CAE-unit, and the first gas distribution element and the second gas distribution element being electrically connected.

Abstract: A solid oxide fuel cell or a solid oxide electrolyzing cell includes a) a plurality of cathode-anode-electrolyte units, each CAE-unit having a first electrode for an oxidizing agent, a second electrode for a combustible gas, and a solid electrolyte between the first electrode and the second electrode and b) a metal interconnect between the CAE-units. The interconnect having a first gas distribution element and a gas distribution structure for the combustible gas, wherein the first gas distribution element is in contact with the second electrode of the CAE-unit, and a second gas distribution element having channels for the oxidizing agent and including separate channels for a tempering fluid. The channels for the oxidizing agent are in contact with the first electrode of an adjacent CAE-unit, and the first gas distribution element and the second gas distribution element being electrically connected.

Abstract: The gas distribution element for a fuel cell or an electrolyzing device including a first layer and a second layer, the first and second layers are disposed with a gas distribution structure forming a pattern for a fluid flow of a first reactant fluid. The second layer is a homogenizing element, which has first apertures, wherein at least some of the first apertures have a length and a width, with the length being greater than the width and the length extending in a transverse direction to the main direction of fluid flow.

Abstract: A solid oxide fuel cell or a solid oxide electrolyzing cell, including a plurality of cathode-anode-electrolyte units, each CAE-unit having a first electrode for an oxidizing agent, a second electrode for a combustible gas, and a solid electrolyte between the first electrode and the second electrode and an interconnect between the CAE-units. The interconnect including oxidant inlet and outlet sides defining an oxidant flow direction of the oxidizing agent flow, a first gas distribution element. The first gas distribution element contacts the second electrode of the CAE-unit, and a second gas distribution element with oxidizing agent has channels connecting the oxidant inlet and outlet sides. The oxidizing agent channels are in contact with the first electrode of an adjacent CAE-unit, and a least one bypass channel for the oxidant flow arranged such that the bypass channel is not in contact with the first electrode.