| 摘要 |
A fuel cell stack is constructed based on a plurality of micro fuel cell units having a generally circular cross section. Each micro fuel cell unit includes an electric conductive tube that comprises a porous wall section and a non-permeable wall section, an inner electrode being disposed coaxially around and in intimidate contact with the peripheral surface of the porous wall section, a solid electrolyte member being disposed coaxially around and in intimate contact with the inner electrode, and an outer electrode being disposed coaxially around and in intimate contact with the electrolyte. The fuel cell stack comprises at least a fuel cell module, which includes an electric conductive planar sheet, and a group of aforementioned micro fuel cell units that are being laid side by side on the electric conductive planar sheet in a generally parallel arrangement, with the non-permeable sections of the micro fuel cell units being electrically interconnected. The fuel cell modules are then stacked with an electrical insulating material being sandwiched between the outer electrodes of the fuel cell units in a first module and a second module's conductive planar sheet overlying or underlying the outer electrodes of the first module, and with the non-permeable sections of the fuel cell units in the first module being electrically connected to the conductive planar sheet of the second module, thereby said fuel cell modules in the fuel cell stack are being electrically connected in series.
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