| 摘要 |
PURPOSE:To reduce hydrogen ion in using a reaction layer as a negative electrode and efficiently generate hydrogen gas from the negative electrode by providing an electrical insulating hydrophilic porous layer and an electrical insulating water repellent porous layer on both surfaces of the reaction layer. CONSTITUTION:In the center of a reaction layer 1 formed by tangling a hydrophilic part and a water repellent part in contact to each other, an electric collector 2 is nipped and built therein. An electrical insulating hydrophilic porous layer 3 is bonded to the layer 1, and an electrical insulating water repellent porous layer 4 to the other surface of the layer 1. Since the layers 3, 4 are provided on both the surfaces of the layer 1 in this way, the layer 1 is never exposed to a flowing electrolyte. The layer 1 is thus protected, the electrolyte is moved to the layer 2 only by diffusion, so that metal ions are never reduced, and hydrogen ions are diffused to the layer 1 and positively reduced in the hydrophilic part by the collector 2 to form hydrogen gas, which thus can be extremely efficiently taken out from the water repellent layer surface of the electrode. |
