PE battery separator has many effects on the performance of lead battery. Every improvement of separator quality is accompanied by the improvement of lead battery performance. The main function of PE battery separator is to prevent short circuit between positive and negative electrodes, but it cannot significantly increase the internal resistance of the battery. PE battery separator is mainly used to prevent short circuit between positive and negative electrodes, but it cannot significantly increase the internal resistance of the battery. Therefore, the separator should be porous, allowing free diffusion of electrolyte and ion migration, and has a relatively small resistance. PE battery separator shall not reach the opposite electrode plate through fine holes, that is, the hole diameter shall be small, the number of holes shall be large, and the total area of the gap shall be large.

The time required for the PvC separator, PE separator, rubber separator, and PP separator to achieve stable resistance is different. This is mainly due to the different main materials used for the separator, and the different time it takes for the separator to be completely wetted by the sulfuric acid solution. Different ratios and apertures, the PP separator takes the shortest time to stabilize the resistance, the PE separator takes the longest time, the PVC separator and the rubber separator are in the middle, and the PVC separator takes a slightly shorter time than the rubber separator.

According to the different batteries, the requirements for the hydrophilic wettability of the separator are also different (eg: PE separator, PVC separator, PP separator, etc.) The wet-type charged battery requires that the separator of the battery has good re wettability, that is, after the first wetting, whether the separator is air dried or not, it is required to have another hydrophilic wettability.

The function of the PE separator is to separate the positive and negative plates that rely on each other to prevent short circuits due to contact with each other. The PE separator material should have good acid resistance and oxidation resistance. Commonly used separators include wooden separators, microporous rubber separators, microporous plastic glass fibers and cardboard. PE separators usually have grooves on one side.