| 摘要 |
PURPOSE:To suppress the generation of gas during a storage period and improve a corrosion resistant characteristic without degrading discharge duration by making a gelatinized alkaline electrolytic solution contain boric acid, borate or sodium hydroxide. CONSTITUTION:Boric acid, borate or sodium hydroxide are made to be contained in a gelatinized alkaline electrolytic solution. Boric acid ions are contained as an effective ingredient for suppressing corrosion in the domain where mercury density is low. The content of these additives in the gelatinized alkaline electrolytic solution is at the rate of 0.5-2.0 wt.% of zinc alloy powder. If the content is less than 0.5%, the quantity is not enough to let an additive act as an obstructive material for suppressing corrosion; if the content is more than 2%, it causes the lowering of a battery voltage resulting in the lowering of the discharge characteristic. Sodium hydroxide is added as a substance to smooth the discharge reaction in the domain where mercury density is low. |
