| 摘要 |
PURPOSE:To effectively restrain the growth of zinc dendrite to obtain a longer cycle life by using a zinc electrode including an active material mixture in a negative electrode. CONSTITUTION:In a nickel-zinc storage battery including a negative electrode 1, a positive electrode 2, a separator 3 and a layer 4 for holding liquid, a zinc electrode including an active material mixture containing a zinc alloy containing indium and gallium, a zinc oxide, an oxide or a hydroxide of gallium is used in a negative electrode 1, Indium and gallium in the zinc alloy is set to 0.5-5wt%, respectively, and further a total amount of an oxide or a hydroxide of indium and an oxide or a hydroxide of gallium is set to 1-10wt% of the active material mixture, and furthermore the zinc alloy in the active material mixture is set to 5-100wt% of the zinc oxide. |
