| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkaline battery improved greatly in leakage prevention of an electrolyte solution at the time of over-discharge state. SOLUTION: The alkaline battery uses zinc as a principal active material of a negative electrode and manganese dioxide or nickel oxy-hydride as a principal active material of a positive electrode, a potassium hydride water solution as an electrolytic liquid, and a current collection pin in which copper or brass of nearly nail shape is applied with tin plating as a current collector of negative electrode side. The mass concentration of the potassium hydride water solution is 36 to 40 wt.%, and the ratio of zinc and potassium hydride is potassium hydride 37-40 against zinc 100. Furthermore, the thickness of tin plated on the surface of the current collection pin is 0.05μm-0.5μm. COPYRIGHT: (C)2006,JPO&NCIPI
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