| 摘要 |
PURPOSE:To provide a manganese dry battery free from environmental pollution, not containing cadmium and lead, which may cause environmental pollution, in a zinc alloy negative can. CONSTITUTION:In a manganese dry battery using a zinc alloy negative can, 30-8000ppm bismuth and 10-1000ppm at least one of alkali earth metals (Mg, Ca, Sr, Ba) based on the weight of zinc are contained in the zinc alloy. The negative can holds sufficient mechanical strength and corrosion resistance without containing cadmium and lead, which may cause environmental pollution, in the zinc alloy. |
