PVC SiO2 separators are considered an improvement over normal PVC separators due to the incorporation of silicon dioxide (SiO2) nanoparticles. Here are some reasons why PVC SiO2 separators are considered better:

The PVC SiO2 separator and PE (polyethylene) separator are two different types of separators used in batteries. Here are the key differences between them:

The advantages of PVC SiO2 separator are as follows: Enhanced safety: The PVC SiO2 separator has improved safety features, such as higher thermal stability and flame retardancy, which reduce the risk of thermal runaway and improve the overall safety of the battery.

The separator is an important component of the battery and is not an active substance. In some cases it even plays a decisive role. The material itself is an electronic insulator, and its porosity makes it ionically conductive. The resistance of the separator is an important performance of the separator, which is determined by the thickness of the separator, the porosity, and the degree of tortuosity of the hole, and has an important influence on the capacity and terminal voltage level of the high-rate discharge of the battery; The stability of the separator in sulfuric acid directly affects the life of the battery; The elasticity of the separator can delay the shedding of the positive active material; the pore size of the separator affects the short-circuit degree of lead dendrites. Due to the various effects of the separator on the performance of the lead-acid battery, every improvement in the quality of the separator is accompanied by the improvement of the performance of the lead-acid battery.

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 lead-acid battery was created by the Frenchman G.Plante. Samples were sent to the French Academy of Sciences in 1860. At that time, the battery was the only new thing in the laboratory. It was not until 13 years later (in 1873) , the DC generator came out, and the lead-acid battery gradually became practical.