| 摘要 |
PURPOSE:To improve the discharge performance of a battery by specifying the average particle diameter of carbon powder for the average particle diameter of manganese dioxide, then specifying the content of carbon, and creating positive electrode black mix through dry granulation. CONSTITUTION:Positive electrode black mix 2 is created by setting the average particle diameter of carbon powder to less than 50% of the average particle diameter of manganese dioxide powder, setting the content of carbon to the 2- 10wt% of the positive electrode black mix amount, and molding the powder body obtained by dry-granulating the material containing their powder. Then, an alkaline battery is formed by being inserted in a positive electrode can 1 and combining a negative electrode 5 that diffuses zinc powder in a separator 3, electrolytic solution holding layer 4, and gelatinized electrolytic solution. As a result, the carbon powder is entered excellently between manganese dioxide particle by the suppression of the particle diameter and the collection effect can be improved. Also, filling density can be improved by dry granulation and battery performance can be improved. |
