NOVELTY - The hydrogen generating apparatus useful in a fuel cell power generation system, comprises an electrolyte bath (410) containing an electrolyte solution (412), a first electrode (422) stacked on a surface inside the electrolyte bath and configured to generate electrons, a moisture absorption layer (424) stacked on the first electrode and configured to absorb moisture from the electrolyte solution, and a second electrode (426) stacked on the moisture absorption layer and configured to generate hydrogen using the electrons and the electrolyte solution.    USE - The hydrogen generating apparatus is useful in a fuel cell power generation system (claimed), where the generated fuel cell power is useful in portable electronic devices such as cell phones and laptops.    ADVANTAGE - The hydrogen generating apparatus is compact and cost-effective, and is capable of generating pure hydrogen at room temperature using electrochemical reactions and controlling the flow of electrons in accordance with the amount of hydrogen or electrical power required by the fuel cell.    DETAILED DESCRIPTION - The hydrogen generating apparatus useful in a fuel cell power generation system, comprises an electrolyte bath (410) containing an electrolyte solution (412), a first electrode (422) stacked on a surface inside the electrolyte bath and configured to generate electrons, a moisture absorption layer (424) stacked on the first electrode and configured to absorb moisture from the electrolyte solution, a second electrode (426) stacked on the moisture absorption layer and configured to generate hydrogen using the electrons and the electrolyte solution, a unit to control an amount of electrons flowing from the first electrode to the second electrode, first and second conductive electrodes formed on one side of the first and second electrodes respectively and electrically connecting the electrodes with the control unit, and a gas-liquid separation membrane interposed between the electrolyte bath and the hydrogen outlet. The first electrode, the moisture absorption layer and the second electrode are thin film layers, and are formed by an inkjet coating method, a spray coating method or a thin film deposition method. The first electrode and the moisture absorption layer have thickness of 1-100 mu m. The second electrode has a thickness of 10-50 mu m. A stack composition is stacked in a multilayer structure, and comprises the first electrode, the moisture absorption layer and the second electrode. The moisture absorption layer is interposed between the stack compositions. The electrolyte bath comprises a hydrogen outlet to discharge the hydrogen. The gas-liquid separation membrane is configured to permit discharge for the hydrogen, and prevents discharge for the electrolyte solution. An INDEPENDENT CLAIM is included for a fuel cell power generation system.    DESCRIPTION OF DRAWING(S) - The diagram shows a cross-sectional view of hydrogen generating apparatus.    Electrolyte bath (410)    Electrolyte solution (412)    First electrodes (422)    Moisture absorption layers (424)    Second electrodes. (426)