| 摘要 |
PURPOSE:To obtain a cadmium negative plate having high charging efficiency by containing a specified weight of zirconium silicate based on the total weight of cadmium. CONSTITUTION:A negative plate contains 0.5-20wt.% zirconium silicate based on the total weight of cadmium. Charging efficiency is increased if the content of zirconium silicate is 0.5wt.% or more. In particular, charging efficiency reaches 98% or more and inactive cadmium hydroxide is decreased in a content range of 1-20wt.%. If the content of zirconium silicate exceeds 20wt.%, the theoretical capacity density of a cadmium active material is decreased. The cadmium negative plate having high charging efficiency is obtained. |
