| 摘要 |
PURPOSE:To increase the fluidity of a positive mix, to make molding by rubbing weighing passible, and to increase binding capability of a positive pellet in low density molding to prevent coming off or breakage of the mix by using the positive mix prepared by granulating, then adding a binder thereto. CONSTITUTION:Bismuth trioxide powder serving as a positive active material and carbon conductor are mixed, and molded in tablets, then the tablets are crushed to form granules. Granulated mix 1 and a binder 2 comprising a fluororesin emersion are mixed and the mixture is dried, then passed through screens to form a positive mix. This positive mix has narrow weight dispersion in molding by rubbing weighing. Pellet strength required for assembly and hadling is made high, and handling is also made easy. |
