| 摘要 |
PURPOSE:To provide a lead-acid battery plate having good initial performance and long life by pressing under pressure a mixture prapared by adding micro- capsule containing powder or fiber of graphite or carbon and acid resistant sticky material in a grid. CONSTITUTION:2% of micro-capsule containing 1% of graphite powder having 5-10mu particle size and a binder is added to lead dioxide powder (0.1-50mu) prepared by electrolytic oxidation and they are mixed. This mixture is pressed under a pressure of 10kg/cm<2> to a grid for a conventional automotive battery. Micro-capsule is brocken with pressure, and the binder mainly comprising unsaturated polyester resin in the capsule is flowed out and penetrates into between lead dioxide particles. This resin is cured by catalytic action of lead dioxide and strongly ties particles. Graphite powder functions as a conductive material. |
