In order to place the plurality of positive electrode plates and the negative electrode plate in the lumen in the limited battery tank, the positive electrode plate is shorted to the negative plate, and a separator is equipped between adjacent positive electrode plates and the negative electrode plate. In addition to good insulation properties, the partition can also ensure the full circulation of the electrolyte. The partition can prevent short-circuit between the positive and negative plates, but does not hinder the circulation of the two poles ions, and the long-term use does not deteriorate or release impurities.The separator of the lead-acid battery of the battery partition is made of a material such as microporous rubber, glass fiber, and its main function is to prevent the positive and negative plates from being short-circuited, so that the positive and negative ions in the electrolyte are successfully passed, and the positive and negative electrode is blocked. The falling of the active substances prevents the positive and negative plates from damage due to vibration. As the carrier of the electrolyte, it can absorb a large amount of electrolyte, which promotes the effect of promoting ionic diffusion (ion conductive). For the valve sealing lead-acid battery, the separator also serves as a "passage" of the oxygen generated by the positive electrode plate, and the oxygen circulation is successfully established, and the water loss is reduced. Ultrafine fiberglass separator is a key to the valve sealing lead-acid battery to achieve less maintenance.
The diaphragm in the valve-controlled sealed lead-acid battery is glass fiber cotton, which should have the following characteristics:
1. Excellent acid resistance and oxidation capacity.
2, uniform thickness, no needle hole, no mechanical impurities.
3, the aperture is small and the hole is large.
4, absorb and reserve the electrolyte capacity.
5, the resistance is small.
6, with a certain mechanical strength to ensure process operation requirements.
7, low impurity content, especially iron, copper content is low.
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