| 摘要 |
PURPOSE:To improve the initial performance and life performance of a lead storage battery by making a glass mat that is made of glass fiber of 3mu or less in diameter and is provided with a number of permeation holes contact the surface of a positive electrode plate and combining the positive electrode plate with a negative electrode plate, pressing them, and forming the lead storage battery. CONSTITUTION:A porous body 3 with the degree of air ventilation of 20-200cc/ cm<2>.sec is made to contact both ends of a positive electrode plate 1 by providing a number of permeation holes 5 in a glass mat made of glass fiber of 3mu or less in diameter and in a porous body with a small hole diameter such as synthetic resin unwoven fabric. In addition, a paste-type lead storage battery is formed by combining the positive electrode plate with a negative electrode plate 2 through a separator 4 and housing them in a container while pressing the surface of the positive electrode plate 1 at a force of 30-120kg/cm<2>. As a result, the positive electrode plate 1 is pressed uniformly and the softening and slipping off of an active material can be prevented. Simultaneously, the diffusion of an electrolyte is improved and the life performance is also improved without reducing the discharge capacity of the plate. |
