PE separator is a new type of separator after rubber separator, glass fiber separator and polyethylene (PVC) separator. It has the advantages of high porosity, small pore size, low resistance, good toughness and sealability. Prevent edge short circuit, reduce active material shedding, and improve battery life.

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.