| 摘要 |
PURPOSE:To enhance the utilization rate of a nickel electrode and extend the life of the electrode by manufacturing moistened cobalt oxide or cobalt hydroxide which is then added to an active material. CONSTITUTION:Cobalt oxide (hydroxide) is prepared from an aqueous cobalt- acetate solution and an aqueous caustic-potash solution For instance, after 250g of cobalt acetate is dissolved in 2l of water, an excessive amount of 10wt% caustic-potash solution is added to the solution so as to make precipitates. Thus obtained precipitates are washed with water by the usual filtration until almost no alkali remains. Next, the above moistened precipitates are added to an active material mixture so as to make a paste. After that, a sealed nickel-cadmium battery of the single-2 type is constituted by using the convertional cadmium electrode, a non-woven polyamide fabric used as a separator, and a solution prepared by dissolving 20g of lithium hydroxide in 1l of 20wt% aqueous caustic- potash solution as electrolyte. |
