(DE19713250-A1)      An electrochemical fuel cell has a membrane electrode assembly disposed between two separator plates (11,12) comprising a polymer electrolyte membrane (PEM) interposed between two electrode layers. An adhesive bond is formed between a portion of the assembly and each plate.    Also claimed is an electrochemical fuel cell stack of a number of the electrode assemblies.    Also claimed is a stack in which adjoining separator plates are adhesively bonded together.    ADVANTAGE -   The sealing function is improved, reducing leaks. Thinner individual cells can be used, and the cells can be more easily removed from the stack for repair which reduces costs. The membrane does not dry out due to exposure to air, reducing damage to membrane and electrodes, and improving cell performance.    (US6080503-A)      An electrochemical fuel cell has a membrane electrode assembly disposed between two separator plates (11,12) comprising a polymer electrolyte membrane (PEM) interposed between two electrode layers. An adhesive bond is formed between a portion of the assembly and each plate.    Also claimed is an electrochemical fuel cell stack of a number of the electrode assemblies.    Also claimed is a stack in which adjoining separator plates are adhesively bonded together.    ADVANTAGE -   The sealing function is improved, reducing leaks. Thinner individual cells can be used, and the cells can be more easily removed from the stack for repair which reduces costs. The membrane does not dry out due to exposure to air, reducing damage to membrane and electrodes, and improving cell performance.    (GB2323700-B)      An electrochemical fuel cell has a membrane electrode assembly disposed between two separator plates (11,12) comprising a polymer electrolyte membrane (PEM) interposed between two electrode layers. An adhesive bond is formed between a portion of the assembly and each plate.    Also claimed is an electrochemical fuel cell stack of a number of the electrode assemblies.    Also claimed is a stack in which adjoining separator plates are adhesively bonded together.    ADVANTAGE -   The sealing function is improved, reducing leaks. Thinner individual cells can be used, and the cells can be more easily removed from the stack for repair which reduces costs. The membrane does not dry out due to exposure to air, reducing damage to membrane and electrodes, and improving cell performance.