At present, many manufacturers of PE separators are tackling the key problems in this respect, in order to improve the thermal oxygen aging resistance of the separators. Many manufacturers also put forward some feasible schemes. Such as using more high molecular weight polyethylene, increasing the amount of PE powder and so on. The author...

Open circuit voltage (OCV): when the battery does not discharge, the potential difference between the two poles of the battery is called open circuit voltage. The open circuit voltage of the battery will vary according to the materials of the positive and negative electrodes of the battery and the electrolyte. If the materials of the posi...

The function of PE separator is to prevent the short circuit caused by the contact between positive and negative plates. Because it is porous, it can make the electrolyte pass through PE separator smoothly. Make sure that the plates are reacting normally. Therefore, PE battery separator should have higher porosity to ensure the ion conduc...

（1） Positive plate (positive active material) The main component of the active material of the positive plate is lead dioxide, which has strong oxidizability. When discharging, it reacts with sulfuric acid to form lead sulfate, and absorbs electrons. There are two types of lattice of lead dioxide, one is lead oxide The other is PB02 P...