| 摘要 |
PURPOSE:To improve capacity density by adding a benzene derivative to a nickel salt aqueous solution of an electrolyte. CONSTITUTION:About 3% carboxymethylcellulose aqueous solution is added to carbonyl nickel powder to make paste. This paste is applied to a nickel plated perforated steel plate and dried, and sintered in a reducing atmosphere at about 900 deg.C to obtain a substrate having about 80% porosity. When 2,7 sodium naphthalenedisulfonate is added to a solution in an active mass filling process, a fine nickel hydroxide active mass 4 is formed and filled in order from the innermost pore of the substrate, and filled densely in pores of the substrate. Therefore, capacity density is increased. Sodium saccharinate as well as sodium 2,7- naphthalenedisulfonate is used as a benzene derivative. |
