What are the factors that affect the quality and performance of UPS batteries?

Technical factors affecting the quality of UPS batteries 1. Rated capacity is one of the important indicators for testing the quality of UPS batteries. Our country uses 20h discharge rate rated capacity as the rated capacity of lead-acid batteries for starting. The battery capacity indicates the power supply capacity of the battery. The larger the battery capacity, the more electric energy that can be supplied, and the greater the power supply capacity; conversely, the smaller the battery capacity, the smaller the power supply capacity. 2. Batteries with unqualified safety performance indicators are unacceptable. Among them, explosion and liquid leakage are the most affected. The occurrence of explosion and liquid leakage is mainly related to the internal pressure, structure, process design of the battery and improper operation that should be prohibited. 3. Acid content and formation process: It is divided into two types: battery formation and tank formation. The battery formation can quantitatively inject acid and record the data of the whole process of each battery unit formation, which can accurately judge the comprehensive processing quality of each factory UPS battery, but Ian is longer during formation. Slot formation is for polar plate formation. During formation, Ian is short and polar plate formation is sufficient. However, the quality of UPS battery packaging cannot be judged by the formation process data record. 4. Battery composition: The battery is composed of positive plate, negative plate, AGM diaphragm, positive and negative bus bars, electrolyte, safety valve, cover and shell. Among them, the thickness of the positive grid, the alloy composition, the uniformity of the thickness of the AGM diaphragm, and the bus bar alloy , The amount of electrolyte, the opening and closing pressure of the safety valve, the cover material, and the battery processing technology have an important influence on the battery life and capacity uniformity. Technical factors affecting UPS battery performance (1) Since the current domestic DC system charging mechanism is not very perfect, there is a voltage drift in practice, and the UPS battery is in a floating state for a long time. If the floating voltage deviates from the normal range, it will It will cause overcharging or undercharging of the battery. Long-term overcharging or undercharging has a great impact on the performance of the battery. (2) Thermal runaway refers to the accumulative enhancement of the charging current and battery temperature when the battery is charged at a constant voltage, and the battery is gradually damaged. From the current survey of battery usage, thermal runaway is one of the important reasons for battery failure. The direct consequences of thermal runaway are the bulging and air leakage of the battery shell, the decrease of battery capacity, and the serious ones will cause plate deformation and finally failure. . (3) The temperature has a great influence on the natural aging process of the battery. The battery life will decrease by 10% every time the temperature rises by 5 degrees Celsius. Therefore, the UPS design should keep the battery as temperature as possible. All online and backup/online hybrids The UPS generates more heat than the backup or online interactive UPS during operation, which is also an important reason for the relatively long battery replacement cycle of the backup or online interactive UPS. (4) The operating humidity of the battery should be 5%-95%. Too high ambient humidity will cause condensation on the surface of the battery, which is prone to short circuit, low PF ambient humidity, and static electricity. Excessive dust can also easily short-circuit the lead-acid battery and block the safety valve and fail. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it. Previous: Which lithium battery recycling technologies?