| 摘要 |
PURPOSE:To heighten the capacity of a hydrogen battery, by setting the quantity ratios of a hydrogen-occlusion alloy and a binder for the body of an electrode and the void percentage of the body, within appropriate ranges. CONSTITUTION:In a hydrogen-occlusion alloy electrode, a current collector is integrally provided on the electrode body in which a hydrogen-occlusion alloy and a binder are provided as essential constituents. The volume ratios of the hydrogen-occlusion alloy and the binder to the electrode body are set at 40-85% and 5-40%, respectively. The void percentage of the electrode body is set at 10-50%. If the void percentage were less than 10%, an electrolyte would no effectively infiltrate into the electrode body. If the void percentage were more than 50%, the amount of the hydrogen-occlusion alloy for constituting the electrode body would be so small as to make it hard to heighten the capac ity of a battery. If the volume ratio of the binder were less than 5%, the elec trode body could not be molded. If the volume ratio of the binder were more than 40%, the relative amount of the hydrogen-occlusion alloy which is the other essential constituent would decrease. |
