| 摘要 |
PURPOSE:To obtain an ink-state positive mix suitable for coating an aluminium foil by kneading a mixture of manganese dioxide active material powder and carbon powder having a specified mixing ratio with a carboxymethylcellulose aqueous solution, and by adding a polytetrafluoroethylene aqueous solution to the mixture, then by kneading them again. CONSTITUTION:Manganese dioxide active material powder and conductive carbon powder are mixed, and the mixture is kneaded with a carboxymethylcellulose aqueous solution having a concentration of 0.5-2.0-wt.% in the state of paste. A polytetrafluoroethylene resin aqueous dispersion solution is added to the paste so that the solid content of the resin is 3-10wt.% based on the weight of manganese dioxide, and they are kneaded again. Viscosity of the mixture sharply rises, then drops in the state of ink. The ink-state positive mix containing manganese dioxide, carbon, and polytetrafluoroethylene resin and suitable for coating an aluminuum foil can be obtained. |
