| 摘要 |
PROBLEM TO BE SOLVED: To provide an anode activator for an alkaline primary cell made of zinc powder which has fine liquidity when turned into a paste, capable of securing excellent productivity by restraining troubles such as injection failure, contributing to the improvement of large-current discharge characteristics of a cell with a large reaction area, and an alkaline primary cell using the same. SOLUTION: A specific surface area of zinc powder measured by a specific surface area measuring method such as BET method is 0.06 m<SP>2</SP>/g or more. If the value falls below 0.06m<SP>2</SP>/g, a reaction area of the active material is too small to improve the large-current discharge characteristics of the cell. If an average particle size of the zinc powder falls below 80μm, liquidity when turned into the paste is degraded, it tends to generate troubles such as injection failure, and makes it hard to secure the productivity. If it exceeds 140μm, the dispersibility of zinc particles is degraded which tends to give rise to solid-liquid separation. COPYRIGHT: (C)2004,JPO
|
