| 摘要 |
PURPOSE:To obtain a non-sintered cadmium electrode providing characteristics close to a sintered cadmium electrode under severe operating conditions while still reserving ease of manufacture, by using the active material mixture of one or both cadmium oxide and cadmium hydroxide and a specific amount of nickel powder. CONSTITUTION:An active material mixture of 70-50pts.wt., for the equivalent of cadmium oxide, of one or both of cadmium oxide and cadmium hydroxide and 30-50pts.wt. of nickel powder is spread over a core member and pressed together. As the active material, cadmium oxide having a larger apparent density and being easy for filling is more preferable, but cadmium hydroxide or mixture of both can also be used. As the nickel powder, carbonyl nickel is preferable, and as the core member, punching metal, expanded metal, net, or the like is used. As the bonding agent, hydrophilic material with low electrical resistivity such as carboxyl methyl cellulose or polyvinyl alcohol is preferable. |
