| 摘要 |
PURPOSE:To generate efficiently the reducing reaction of cadmium for checking the generation of hydrogen even when a battery reaches an overdischarge state by impregnating independently cadmium salt in addition to the impregnation of nickel salt. CONSTITUTION:The impregnating operation of nickel salt to become a positive pole active substance and the impregnation of cadmium salt as the overdischarge countermeasures are independently performed. For instance, a cadmium nitrate water solution is firstly impregnated into a sintering type substrate having a porosity degree of about 80% when sintering nickel powder while being neutralized in a sodium hydroxide water solution after being dried for performing the impregnating operation to be dried again and secondly for being impregnated in the water solution mainly composed of nickel nitrate followed by being neutralized in the sodium hydroxide water solution after being dried for being dried again, that is to say that the impregnating operation of nickel salt is repeated five times. |
