| 摘要 |
PURPOSE:To curtail the time required for formation and to improve application coefficient as active substance for electrode by obtaining nickel hydroxide through reaction of dispersed nickel salt, caustic alkali and specified amount of water and forming a cathode using such nickel hydroxide as the active substance. CONSTITUTION:The crushed caustic soda is added to the organic dispersion medium which does not dissolve nickel salt and caustic alkali and these are sufficiently stirred. In this timing,the crushed nickel salt is added to the dispersion medium and the water of 4-8mol is added to nickel of 1mol. Thereby, nickel hydroxide is produced by reaction of these. It is then filtered through attraction by a filter paper. Water is then added for washing. It is then dried, roughly crushed, washed by water dried finnaly and then crushed to obtain the completed active substance. A conductive material is added to such active substance powder and a sponge type metal porous material is filled with such mixed powder. Thereafter it is pressed to a constant thickness to form the cathode. Thereby, the cathode, which may be formed easily, assures high filling coefficient of active substance and high application coefficiency and results in high energy density, may be obtained. |
