(JP10040934-A)      Electrochemical cell comprises at least one dense solid electrolyte body, at least two dense interconnectors acting as current collectors, cathodes and anodes. 1st gas flow channels (6A) and 2nd gas flow channels (7A) extend through a structure (1A) defined by at least one dense solid electrolyte body and at least two dense interconnectors. The anodes (5A) are formed on the walls of the 1st gas channels and the cathodes (4A) are formed on the walls of the 2nd gas channels with electrolyte bodies (3A) separating adjacent or opposing electrodes    Also claimed is the production of the cell by forming a green moulded body by simultaneous moulding of the electrolyte body and interconnectors, firing, then forming the anodes and cathodes.    Also claimed is an electrochemical device using the cells described above.    USE -   Used as solid oxide fuel cells, steam electrolysis cells, oxygen pumps, NOx decomposition cells.    ADVANTAGE -   The cells have large electrode area per unit volume and high efficiency. The cell has a simple structure, needs no special sealing mechanism and can be produced by simultaneous sintering.    (US6025084-A)      Electrochemical cell comprises at least one dense solid electrolyte body, at least two dense interconnectors acting as current collectors, cathodes and anodes. 1st gas flow channels (6A) and 2nd gas flow channels (7A) extend through a structure (1A) defined by at least one dense solid electrolyte body and at least two dense interconnectors. The anodes (5A) are formed on the walls of the 1st gas channels and the cathodes (4A) are formed on the walls of the 2nd gas channels with electrolyte bodies (3A) separating adjacent or opposing electrodes    Also claimed is the production of the cell by forming a green moulded body by simultaneous moulding of the electrolyte body and interconnectors, firing, then forming the anodes and cathodes.    Also claimed is an electrochemical device using the cells described above.    USE -   Used as solid oxide fuel cells, steam electrolysis cells, oxygen pumps, NOx decomposition cells.    ADVANTAGE -   The cells have large electrode area per unit volume and high efficiency. The cell has a simple structure, needs no special sealing mechanism and can be produced by simultaneous sintering.