What is the reason for the decrease of battery yuasa power?

Tang shallow  yuasa battery is an important part of UPS power supply equipment. At present, the battery used in UPS equipment is mainly valve regulated lead-acid battery. In practical use, for example, due to frequent power outage, UPS power battery is deeply discharged and under charged, leading to early capacity loss; what is the reason for the battery capacity decline of UPS power supply?

1. Effect of plate area

Under the condition of the same shell volume, select the thin plate and increase the number of plates, that is, increase the plate area, improve the capacity of battery and specific energy, and improve the high current of UPS battery. Low temperature discharge function, but the disadvantage is that the floating charge life will be slightly reduced.

2. Influence of slab height

In the height direction of the plate, the utilization ratio of active substances is not uniform, especially when the plate is high, the utilization ratio of the bottom half of the plate is very poor. The current density of the upper part of the discharge is about 2 to 2.5 times lower than that of the lower part. When discharging, the current density gradually decreases, but the current density of the upper part and the lower part is the ratio, so the board layout should not be too small and the height should not be too high.

3. Influence of plate thickness

Previously, the effect of discharge rate on capacity has been reviewed. As the dispersion of H2SO4 will limit the dispersion of active substances, the utilization of active substances will decrease with the thickness of the adding plate. This is more and more obvious in high current discharge. However, due to the concentration of electrolyte

In lead-acid batteries, electrolytes also react. When the volume is constant, the concentration of the added electrolyte is equal to the addition of the reactant. Therefore, within the range of electrolyte concentration used in practice, the capacity is also added with the increase of electrolyte concentration. This is especially true when a high rate discharge is performed and the battery capacity is limited by the positive plate. Therefore, when choosing the appropriate electrolyte concentration, it must be combined with the practical application field.