Group distribution method of standby batteries

Abstract

The invention discloses a group distribution method of standby batteries, comprising the following steps: (1) determining a numerical value as the weight design value of monolithic polar plates, weighing the monolithic polar plates, and leaving the polar plates the weight of which is within the range of plus or minus 2.5% of the weight design value; (2) grouping the polar plates obtained in step (1), and sequencing the polar plates based on a big group, a middle group and a small group, wherein, the minimum value in each group differs by the same fixed value successively; (3) using three groups of the polar plates to carry out polar-group group distribution, wherein, auto-group distribution is carried out on the polar plates of the middle group, the polar plates of the big group and the small group perform mutual group distribution according to the ratio of 1:1, and a negative polar plate is selected from the middle group; and (4) after group distribution, ensuring the weight deviation of each polar group does not exceed 1%. After the batteries are prepared by the group distribution method of the invention, the proportion of a positive active material to a negative active material and the consistency of acid absorption saturation of a partition plate are high, the consistency of float charge voltage of the standby batteries can be improved by more than one time, and the float charge service life can be improved to more than 10 years.

Description

technical field [0001] The invention relates to a backup battery, in particular to a grouping method of the backup battery, and to the uniformity of the floating charging voltage and the service life of the floating charging of the backup battery. Background technique [0002] The backup battery is a backup power supply used in communication, electric power, UPS and other industries. The battery needs to be used in multiple groups to be used in 220V, 110V, 48V and other backup power systems, and the large deviation of the floating charging voltage of the battery cell will affect the life. The main reason is that the deviation of floating charge voltage is affected by factors such as the purity of raw materials and the opening and closing pressure of the safety valve, but the root cause depends on the consistency of the compound reaction efficiency. A small change in the compound reaction efficiency can cause voltage There is a large deviation, and the most important factors ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for grouping backup batteries, which overcomes the defects of low consistency of floating charge voltage and low floating service life of backup batteries in the prior art