| 摘要 |
PURPOSE:To obtain an overall efficiency of excellent discharge, preservation, and antileakage properties and the like with little environmental pollution, by applying a zinc alloy containing Zn as the main component, and specific ratio of In, Cd, Co, Ni, Al, Ca, and Sr respectively as a negative electrode. CONSTITUTION:For a negative electrode 2 of a zinc alkaline type cell, a zinc alloy containing Zn as the main component, 0.005-0.5wt% of In, 0.01-0.5wt% of at least either Pb or Cd, 0.01-0.5wt% of at least either Co or Ni, and 0.005-0.5wt% of at lest one of Al, Mg, Ca, and Sr is used as an active substance. Such an element is not effective or sometimes less effective to anticorrosion when used separately. However, by setting the combination of elements and their amounts adequately to supplement their merits and demerits each other, the anticorrosive property of the zinc alloy for the negative electrode 2 can be improved, and a zinc alkaline cell of excellent discharge and preservative properties with little environmental pollution can be obtained. |
