| 摘要 |
PURPOSE:To provide high degree of porosity by no use of any hole generating agent by sintering a kneaded mixture of two sorts of carbol nickel having respective specified diameters. CONSTITUTION:Carbol nickel powder having a mean particle dia. of 2.2-2.8mum is mixed with carbol nickel powder having a means particle dia. of 3.0-4.0mum, and the mixture is kneaded and sintered to provide a sintered base board for alkaline storage battery. The mix proportion of the two powders shall preferably be 1:1. To obtain this sintered base board, the mentioned Ni powders are mixed with a thickener and a dispersion medium, and the resultant is kneaded to provide a slurry, which is coated on a conductive core, dried, and sintered in reductive atmosphere. This permits enhancement of the mechanical strength of the base board while the degree of porosity of the sintered base board is maintained high, and thereby a flexible base board can be obtained. |
