| 摘要 |
PURPOSE:To improve the life characteristic and the high-rate discharge characteristic of a sealed alkaline storage battery by using an aqueous solution principally composed of potassium hydroxide having high discharge efficiency as the electrolyte. CONSTITUTION:A negative plate prepared by packing cadmium used as the active material has a width of 33mm., a length of 260mm. and a thickness of 0.60mm.. After the negative plate is charged in 20% aqueous sodium-hydroxide solution at 20 deg.C with a current of 0.4A for 15hr by using a nickel plate as the counter plate, the charged negative plate is washed in flowing water before being dried. A battery is constituted by combining the thus treated negative plate with a completely discharged positive plate with 1.2A capacity and adding 3.8ml of 30% aqueous potassium-hydroxide solution as the electrolyte. By the means mentioned above, a great discharge reserve can be secured while minimizing the variation of the plates. Accordingly, it is possible to improve the life characteristic and the high-rate discharge-characteristic of the battery. |
