| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive plate with no abnormal deposition of nickel hydroxide caused by moisture absorption and hardly cause leakage failure by forming a porous substrate made of nickel sintered body containing a nickel- plated steel plate core material and an active material made of nickel hydroxide filled in the porous substrate, and covering the edge part produced by cutting the core material in a piece with a resin material. SOLUTION: Preferably, a resin material is at least one selected from the group comprising silicone resin, fluororesin, and epoxy resin, and a hydroxide is a higher compound in which the valence of nickel is more than 2. The manufacturing method of a positive plate has a process for filling an active material made of the hydroxide of nickel in a porous substrate containing a nickel-plated steel plate core material, a process for conducting formation of the hydroxide of nickel, a process for cutting in each piece, and a process for covering the edge part produced by cutting with a resin material. |
