Why is the UPS battery capacity insufficient? What are the factors related to the capacity of the battery?

When the battery is in use, sometimes we may find that the UPS power battery has a shorter operating time than before. This is because the battery capacity is already insufficient. What are the reasons for the insufficient battery capacity? In this chapter, Cuneng Electric will discuss with you. 1. Long-term storage. After some customers have bought the battery, because there is no time to install the UPS power battery, the UPS power battery is always stored. The storage temperature and environment have a great impact on the battery. If it is stored for a long time, it is easy to cause The battery capacity is insufficient; 2. The positive plate of the battery is corroded, and the capacity of the battery charge and discharge cycle is easily affected by the positive plate of the battery. The capacity drop under deep cycle is also closely related to the quality deviation of the positive plate, and the positive plate is easy to appear The common reasons for the problem that affect the capacity of the battery are: the multiple discharge cycles of the positive plate are used to concentrate the small holes, so that the large holes are constantly added, which destroys the structure of the positive electrode and causes the active material to fall off. In addition, the positive grid is corroded and deformed by external factors, which seriously affect the capacity of the UPS power battery. 3. Sulfation of the negative plate due to various reasons is also a reason for insufficient battery capacity. The reasons for the insufficient battery capacity of UPS power supply are mainly due to these reasons. When we use the battery, we need to perform some simple maintenance on the battery, increase its utilization rate, extend the life, and let the battery better serve the power system. The capacity of a battery is usually related to the following factors: ①The structure and number of the plates. When other conditions are the same, the capacity of the battery depends on the area of u200bu200bthe electrode plate and the porosity of the active material, so the electrode plate is usually made very thin. ②Discharge situation. When the battery is discharged to a large extent, due to the large amount of lead sulfate precipitation, the cross-sectional area of u200bu200bthe pores of the electrode plate is reduced, and it is difficult for sulfuric acid to penetrate the electrode plate from the surface. Therefore, when the discharge current increases, the sulfuric acid that penetrates into the pores of the electrode plate is not enough to compensate for the amount of sulfuric acid consumed per unit time, causing the battery voltage to drop rapidly, and the battery cannot be continuously discharged. Therefore, the discharge current increases and the battery capacity decreases. ③The electrolyte temperature. When the temperature decreases, it is difficult for the electrolyte to penetrate into the electrode plate due to the increased viscosity. At the same time, when the temperature decreases, the resistance of the electrolyte increases and the voltage decreases, so the capacity of the battery will decrease. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: The scale of use of lithium battery packs and the reason for the explosion of lithium batteries