PURPOSE: To increase the filling amount of positive mix to increase discharge capacity by pouring a slurry-like positive mix containing the excess amount of electrolyte in a zinc can, then inserting a molded positive mix.
CONSTITUTION: A positive mix comprises 100pts.wt. manganese dioxide and 15pts.wt. acetylene black. Electrolyte comprises 25wt% zinc chloride and 3wt% ammonium chloride. A slurry-like positive mix 3 is prepared by mixing 3pts.wt. positive mix and 6.5pts.wt. electrolyte, and a molded positive mix 4 is formed by molding the mixture of 100pts.wt. positive mix and 70pts.wt. electrolyte. The slurry-like positive mix 3 is poured in a zinc can 1 inside which a separator 2 is lined, then the molded positive mix 4 is inserted in the zinc can 1, and a battery is assembled. Thereby, the filling amount of the positive mix is increased and discharge capacity is increased.
KUBOTA FUMIHIKO