| 摘要 |
PURPOSE:To prevent a short-circuit with a positive pole plate by making the size of the protruding part of a separator from a negative pole plate using an expanding grid not exceeding the londitudinal size of the grid mesh while making the separator width to be same with the width of the battery jar inner size. CONSTITUTION:A positive pole plate 3 and a negative pole plate 4 are formed by using an expanding grid while imposing a mat type separator 5 made of glass fiber therebetween and the width of the pole plate is made smaller by about 3mm. which is, not exceeding the longitudinal size of the grid mesh on either side, than the width of the inner size of the battery jar 7, while the width of the separator 5 is made same with the width of the inner size of the battery jar 7 so as to form an enclosed lead storage battery. Accordingly, when the negative pole active material is expanded due to the charge and discharge cycles, its maximum size can be controlled to about 3mm. for preventing the short-circuit with the positive pole thus checking early deterioration in the battery life without providing a surplus space for making the expanded active material to escape. |
