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09-11
/ 2023
Choosing the right battery separator is crucial to the performance and safety of the battery. Here are some factors to consider when choosing a battery separator:
05-22
/ 2023
Lead-acid batteries are mainly composed of negative elemental lead, positive lead dioxide, electrolyte and separators. The PE separator is between the positive and negative plates of the battery, which can prevent the positive and negative plates from directly contacting and discharging to cause short circuit. At the same time, there are a certain amount of holes on the separator to ensure the passage of positive and negative ions and prevent open circuit. Therefore, the importance of the separator is no less than that of the positive and negative plates of the battery. At present, it is generally believed that the explosion accident caused by the short circuit of the lead-acid battery is mainly caused by the aging of the separator.
03-06
/ 2023
Maintenance free battery means that it is not required to be overhauled and maintained from the time of delivery to the time when it is in the hands of users until the end of its service life. The maintenance free battery is a sealed single battery and cannot be disassembled. What are the reasons for maintenance free lead-acid batteries?
01-02
/ 2023
In order to prolong the cycle life of PE battery separator, it is necessary to ensure that the plate is always in a compressed state during the battery cycle. The separator of PE battery will shrink after the battery is filled with acid or the battery is dehydrated, and the contraction of the separator reduces the pressure between the plates, thus shortening the cycle life of the battery. The bonding force between superfine glass fibers in the separator of PE battery is very small. When the surface tension of water is greater than the bonding force between fibers, the bonding force between superfine glass fibers will be destroyed; The elasticity of the superfine glass fiber in the separator of PE battery is not good enough, so that it cannot be restored to its original state after being compressed.
12-08
/ 2022
The battery separator has a small pore size and high porosity, which is easy to retain the electrolyte, has a good liquid absorption rate and a fast penetration rate, and can effectively enhance the retention of active substances and prolong the battery life. The battery separator can stably supply electrolyte to the pole plate and keep the ion conduction smooth. The strong liquid transfer ability can effectively prevent the phenomenon of acid stratification in the battery. The glass fiber is mainly used, and a certain amount of organic fibers are mixed to enhance the tensile strength of the separator and optimize other performance indicators.
11-28
/ 2022
The battery separator is an integral part of the battery. In the valve-regulated lead-acid battery, the battery separator can prevent the active material of the plate from falling off and the deformation of the plate, and prolong the service life of the battery. It is required that the battery separator shrinks less after the sulfuric acid is injected, and the battery separator is also required to be in a higher pressure state when the battery is designed. The resistance formed by the resistance of the battery separator and the contact of the electrode plate is a component of the internal resistance of the battery. The battery separator itself has a low resistivity, and the battery separator is also required to be in a high pressure state during battery design.
11-03
/ 2022
According to the types of batteries currently owned by the market, batteries can be roughly divided into two types: traditional lead-acid batteries and maintenance-free batteries that have been popularized in recent years.
10-19
/ 2022
1. Compared with many traditional separators, PE separator has the strongest oxidation resistance from the material point of view. However, due to its soft texture and thin base thickness, PE separator is deformed during battery charging and discharging, which is easy to cause heat loss and aggravate the thermal oxidation process of the separator.
10-12
/ 2022
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.
09-21
/ 2022
Structure and properties of ultra-fine glass fiber separators This kind of separator is composed of ultra-fine glass fibers with a diameter of 0.5~4um without any organic binder. The non-compressed glass fiber paper is made by the papermaking method, and its structure is multi-layered mat-like, and relatively small and high labyrinth free channels are formed by disordered glass fibers. The separator has significantly better performance than ordinary battery separators in many aspects.
09-19
/ 2022
In the 1950s, starting batteries mainly used wooden separators. Because they had to be used in wet conditions, the negative plates were easily oxidized, and the initial charging time was long, and they could not be used for dry-charged lead batteries. In particular, wooden separators are not resistant to oxidation and corrosion in sulfuric acid, resulting in short battery life. In order to improve the life of lead-acid batteries, it is proposed to use wood separators and glass wool as separators, which doubles the life of the battery, but the internal resistance of the battery increases, which has an adverse effect on the battery capacity and starting discharge, and can also meet the standard requirements at that time.
09-16
/ 2022
Ultra-fine fiberglass separator At present, ultra-fine glass fiber separator (AGM) is commonly used in VRLA batteries. The wettability is the main characteristic of the separator capable of adsorbing the maximum amount of electrolyte. The separator must have long-term stable chemical and electrochemical corrosion resistance in the battery, it must not release any substances that increase the gas evolution rate, corrosion or self-discharge, and it must have good tensile strength to ensure that the separator is in the battery. will not be punctured by sharp edges or small particles during production assembly.