(WO9730485-A1)      A high temperature fuel cell (2) has two electrodes (8, 12) between composite conductor plates (20, 22, 24) for delivering the current produced in the cell and for supplying the electrodes with a functional medium. At least one of the composite conductor plates (20, 22, 24) consists at least partially of an Fe-based alloy which contains 17-30 wt.% Cr and which has a mean thermal expansion coefficient (at room temperature to 900C) matching that of the electrolyte (10) and having a value of 13-14x10-6 K-1. Also claimed is a high temperature fuel cell stack which comprises several of the above cells and which has composite conductor plates (20) in the form of bipolar plates.    ADVANTAGE -   The overall cell stack costs are reduced by at least a factor of ten.    (EP880802-A1)      A high temperature fuel cell (2) has two electrodes (8, 12) between composite conductor plates (20, 22, 24) for delivering the current produced in the cell and for supplying the electrodes with a functional medium. At least one of the composite conductor plates (20, 22, 24) consists at least partially of an Fe-based alloy which contains 17-30 wt.% Cr and which has a mean thermal expansion coefficient (at room temperature to 900C) matching that of the electrolyte (10) and having a value of 13-14x10-6 K-1. Also claimed is a high temperature fuel cell stack which comprises several of the above cells and which has composite conductor plates (20) in the form of bipolar plates.    ADVANTAGE -   The overall cell stack costs are reduced by at least a factor of ten.    (JP2000504873-W)      A high temperature fuel cell (2) has two electrodes (8, 12) between composite conductor plates (20, 22, 24) for delivering the current produced in the cell and for supplying the electrodes with a functional medium. At least one of the composite conductor plates (20, 22, 24) consists at least partially of an Fe-based alloy which contains 17-30 wt.% Cr and which has a mean thermal expansion coefficient (at room temperature to 900C) matching that of the electrolyte (10) and having a value of 13-14x10-6 K-1. Also claimed is a high temperature fuel cell stack which comprises several of the above cells and which has composite conductor plates (20) in the form of bipolar plates.    ADVANTAGE -   The overall cell stack costs are reduced by at least a factor of ten.    (EP880802-B1)      A high temperature fuel cell (2) has two electrodes (8, 12) between composite conductor plates (20, 22, 24) for delivering the current produced in the cell and for supplying the electrodes with a functional medium. At least one of the composite conductor plates (20, 22, 24) consists at least partially of an Fe-based alloy which contains 17-30 wt.% Cr and which has a mean thermal expansion coefficient (at room temperature to 900C) matching that of the electrolyte (10) and having a value of 13-14x10-6 K-1. Also claimed is a high temperature fuel cell stack which comprises several of the above cells and which has composite conductor plates (20) in the form of bipolar plates.    ADVANTAGE -   The overall cell stack costs are reduced by at least a factor of ten.    (US6156448-A)      A high temperature fuel cell (2) has two electrodes (8, 12) between composite conductor plates (20, 22, 24) for delivering the current produced in the cell and for supplying the electrodes with a functional medium. At least one of the composite conductor plates (20, 22, 24) consists at least partially of an Fe-based alloy which contains 17-30 wt.% Cr and which has a mean thermal expansion coefficient (at room temperature to 900C) matching that of the electrolyte (10) and having a value of 13-14x10-6 K-1. Also claimed is a high temperature fuel cell stack which comprises several of the above cells and which has composite conductor plates (20) in the form of bipolar plates.    ADVANTAGE -   The overall cell stack costs are reduced by at least a factor of ten.