| 摘要 |
PURPOSE:To prevent a stratification phenomenon and obtain an extremely long life by forming a separator with at least two paper-made sheets, and arranging them so that their net face sides at the time of manufacturing are brought into contact with both positive and negative electrode plate faces. CONSTITUTION:Two paper-made sheets 10A and 10B are overlapped and arranged as a separator 1 so that their net side faces 10a and 10b are put on electrode plates 2 and 3 side. The adhesion between flat net side faces 10a and 10b and electrode plates 2 and 3 is sufficiently secured, and the dripping of a liquid due to unsatisfactory adherence is prevented. Faces 10c and 10d on the opposite side are upper sides when the sheets are manufactured, and irregularities are formed into unflat faces. These unflat faces are brought into contact with each other with good adhesion by the elasticity of the sheets 10A and 10B themselves when they are inserted between electrode plates, and they act like one paper-made sheet. The separator 1 is mainly made of alkali- containing glass fibers with the average fiber diameter 2mum or below, and the separator 1 combined with large-diameter glass fibers 0-20wt.% with the average fiber diameter 11mum or above is preferable. |
