| 摘要 |
PROBLEM TO BE SOLVED: To enhance utilization factor and lengthen life by using nickel hydroxide whose dehydrating reaction by heating arises at the specified temperature or lower. SOLUTION: In the manufacture of a paste type nickel electrode in which paste containing an active material mainly comprising nickel hydroxide (Ni(OH)2 ) is filled in a metallic porous substrate, temperature causing dehydrating reaction (Ni(OH)2 →NiO+H2 O) by heating is used as an index. The active material mainly comprising nickel hydroxide having a dehydrating reaction temperature of 270 deg.C or less is used to prepare paste containing the active material, and the paste is filled in the metallic porous substrate. The nickel hydroxide contains eutectoid with cadmium or zinc, and the metallic porous substrate having three-dimensional structure such as spongy nickel and felt nickel is used. The utilization factor of the nickel hydroxide is enhanced and life is lengthened. |
