| 摘要 |
PURPOSE:To reduce the amount of uncharged active materials at the initial charge so as to improve the utility of active materials by filling an active material containing a metallic compound of nobler electric potential than nickel hydroxide into the supporter of a battery in addition to nickel hydroxide, the main component. CONSTITUTION:A positive electrode 2 and negative electrodes 3a, 3b consisting of sintered cadmium having much excess electrode capacity than the positive electrode 2 are enclosed in an envelope 1 through a separator 4 made of nylon nonwoven fabric for insulation, and lead wires 6 and 7 are connected to the both electrodes respectively. Nickel hydroxide powder and 2-valence silver oxide powder having nobler electric potential than nickel hydroxide are used as the active materials of the positive electrode 2, and filled in a porous supporter made of sintered nickel fiber. By contacting this assembly to an electrolyte 5 consisting of aqueous solution of potassium hydroxide, local cell reactions are induced in the positive electrode to oxidize the nickel hydroxide, thereby the amount of uncharged active materials at the initial charge to be carried out thereafter can be reduced to improve the utility of the active materials. |
