| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low pollution zinc alkaline battery using mercury-free zinc alloy powder for a gelled zinc negative electrode capable of easily filling the gelled zinc negative electrode in the battery, having a good shock resistant property, with heightened safety and a discharging property. <P>SOLUTION: The alkaline battery comprises a gelled zinc negative electrode containing mercury-free zinc alloy powder, a gelatinizing agent, and alkaline electrolyte solution. A mixture of a crosslinked (meta)acrylic acid polymer having a 0.5 mass% dispersion viscosity of 35 to 80 Pa×s in water at 25°C, and a grain diameter mainly of 5 to 240 μm; and non-crosslinked (meta) acrylic acid polymer of a 0.5 mass% dispersion viscosity of 0.05 to 0.8 Pa×s in 40% KOH solution at 25°C, and a grain diameter of 100 μm or less, is used as the gelatinizing agent. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
