| 摘要 |
PURPOSE:To suppress the swelling of a positive electrode at charging, also suppress the reduction in charging efficiency of a negative electrode, and improve battery characteristic by sealing an inert gas into a battery. CONSTITUTION:A binder and a thickener are mixed to a required hydrogen storage alloy powder to form a slurry material, which is then applied to both surface of a nickel porous sheet followed by drying and rolling, and heated under vacuum atmosphere to manufacture a negative electrode. A nickel positive electrode is manufactured by adding a thickener to nickel hydroxide powder and carbonyl nickel powder followed by kneading to form a paste material, and charging this in a porous metallic base followed by drying and rolling. The negative electrode plate and the positive electrode plate are wound through a nylon separator to manufacture an electrode plate group, this is inserted to a battery jar, and an alkaline electrolyte such as KOH is injected thereto. In a sealed treatment chamber filled with an inert gas such as nitrogen gas, the same gas is then injected into the jar and sealed by a cap to form a battery. |
