| 摘要 |
PURPOSE:To improve the characteristics of a non-sintered nickel electrode by applying an active material principally consisting of nickel hydroxide to a conductive core material, then adding a binder solution to the thus obtained member before it is dried and impregnated with a cobalt salt solution, being followed by immersing the member in an alkaline solution before it is washed with water and dried. CONSTITUTION:An active material mixture principally consisting of nickel hydroxide is prepared into a paste which is then applied to a conductive core material made of a punched metal or the like to obtain a member having an electrode shape. The thus obtained member is impregnated with an aqueous dispersion of polyethylene used as an electrolyte-resistant binder before being thermally treated. Following that, the treated member is immersed in aqueous solution of cobalt acetate before being dried, then immersed in aqueous solution of caustic potash before being washed with water and dried, thereby making a nickel electrode. By thus adding the binder solution before the cobalt salt solution is added, any generation of cracks and separation can be prevented through the improvement in the strength of the electrode and the discharge characteristic and the life of the electrode can be improved. |
