| 摘要 |
PURPOSE:To increase utilization of active material by forming a nickel electrode for a alkaline battery by bonding active material layers mainly comprising nickel hydroxide and cobalt oxide on both sides of a cobalt plated nickel foil. CONSTITUTION:A nickel electrode for alkaline battery is formed in such a way that a nickel foil is plated with cobalt in a cobalt plating bath comprising ammonium cobalt sulfate, and a sheet-like active material 2 obtained by kneading nickel hydroxide and cobalt oxide with a solution containing Teflon is pressed on both sides of the cobalt plated sheet 1. Nickel hydroxide particles having poor conductivity is coated with CoOOH produced from cobalt oxide to improve conductivity and bonding with the nickel foil. Thereby, utilization of the active material is increased and the thin nickel electrode having high performance and good productivity can be obtained. |
