10-14
/ 2022
AGM sealed lead-acid battery uses pure sulfuric acid aqueous solution as electrolyte, and its density is 1.29-1.3lg/cm3. Except for a part of the electrolyte absorbed inside the plate, most of it exists in the glass fiber membrane. In order to provide a channel for the oxygen precipitated from the positive electrode to the negative electrode, it is necessary to keep 10% of the pores of the separator that is not occupied by the electrolyte, that is, a lean liquid design. In order to make the electrode plate fully contact the electrolyte, the electrode group adopts the method of tight assembly.
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.
10-10
/ 2022
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.
10-07
/ 2022
Whether it is a valve-regulated sealed lead-acid battery using glass fiber diaphragm (hereinafter referred to as AGM sealed lead-acid battery) or a valve-regulated sealed lead-acid battery using colloidal electrolyte (hereinafter referred to as colloidal-sealed lead-acid battery), they all use the principle of cathode absorption to make The battery is sealed.
10-05
/ 2022
There are two types of valve-regulated sealed lead-acid batteries (VRLA) today, namely, glass fiber separators (AGM) and silicon gel (Gel) are used to "fix" the sulfuric acid electrolyte in two different ways. They both use the principle of cathode absorption to seal the battery, but the channels provided for the oxygen evolved from the anode to reach the cathode are different, so the performance of the two batteries is different.
10-03
/ 2022
AGM battery refers to the battery whose separator is made of ultra-fine glass wool material. At present, the German department and the American department mainly promote AGM technology. Compared with ordinary batteries, the price is more than three times more expensive, but it has the following advantages:
09-30
/ 2022
The safety valve of the valve-regulated sealed lead-acid battery is also called the throttle valve. Today, Hebei Bangborun Power Generation will introduce to you the function of safety valve, the structure of safety valve and the working method of safety valve. For everyone to learn and reference.
09-28
/ 2022
In an acidic environment, the PE separator will accelerate its own aging as the temperature rises. After use, the PE separator has different degrees of grid indentation on the contact surface of the front plate. It is obvious that all parts of the separator are oxidized and damaged. It exists in the direction of the indentation, and the direction in which the separator is embrittled and falls off to form holes is the direction of the grid. The microstructure of the PE separator changed significantly before and after oxidation, and a large number of lead sulfate particles adhered to the inside and outside of the oxidized PE separator; the oxidation of the PE separator usually occurred in the direction of the positive plate, because the positive plate was charged during the charging process. During the process, the temperature of the electrode plate is continuously increased, and the temperature of the solution is also continuously increased.
09-26
/ 2022
Environmental performance: This product uses high molecular weight silica gel electrolyte instead of sulfuric acid, which solves the environmental pollution problems such as acid mist overflow and interface corrosion that have always existed in the production and use process, and can be used as fertilizer. Non-polluting, easy to handle, and the battery grid can also be recycled.
09-23
/ 2022
The quality of the separator will directly affect the capacity, charge-discharge cycle life and self-discharge performance of the battery. The analysis results of the battery show that the main reason for the low cycle life of the battery is that the diaphragm with poor quality has a relatively large pore size, and the pore size distribution and thickness are not uniform, so as the charging and discharging progress, the positive lead powder gradually penetrates a small amount The separator goes to the side of the negative electrode, and the negative lead dendrite may penetrate the separator and eventually cause a chronic short circuit of the battery.
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.