| 摘要 |
PURPOSE:To improve the storability of an alkaline battery and suppress the rise in its internal resistance, by using cross-linked etherealized starch and carboxymethyl cellulose as a gel-making agent for the cathode depolarizing mix of the battery. CONSTITUTION:3pts.wt. of a mixture of cross-linked etherealized starch and carboxymethyl cellulose at a weight ratio of 1:1 are mixed with 97pts.wt. of an aqueous solution of 40wt% of KOH. They are stirred to prepare an electrolyte solution in a state of gel. 200pts.wt. of powder of amalgamated zinc are added to the electrolyte solution and they are mingled and kneaded to prepare a paste- like cathode depolarizing mix to manufacture a button or cylinder-shaped alkaline battery by a conventional method. Since the cross-linked etherealized starch is used, the velocity of gelling and the stability of the gel are heightened to greatly improve the storability of the battery. Since the carboxymethyl cellulose is jointly used, the rise in the internal resistance of the battery is suppressed to enhance the performance of the battery. |
