Intelligent regeneration and restoration method of industrial storage battery

Abstract

The invention discloses an intelligent regeneration and restoration method of an industrial storage battery. The method comprises the following steps: 1, carrying out apparatus detection: detecting the residual voltage, the specific gravity and the internal resistance of the storage battery, discarding or further processing monomers with detected parameters being lower than corresponding preset values, splicing monomers with the detected parameters being high higher than or equal to the preset values to form a storage battery packet, and completely and fully charging the storage battery packet; 2, carrying out constant current discharging: setting a voltage value, a capacity value and a discharge rate value according to the specifications of the qualified storage battery packet, feeding detection data back to an intelligent analyzer in real time, and judging the status of every monomer; 3, intelligently restoring: applying an instantaneous high voltage to the storage battery packet through an intelligent positive and negative pulse variable frequency restoration circuit, limiting the current value, and setting an enough short pulse width and an enough large duty ratio, wherein the restoration time is 20-60h; and 4, carrying out constant current discharging: fully charging restored batteries, and testing the fully charged restored batteries. The method is a positive and negative harmonic wave low-voltage and high-current composite pulse method, generates tiny degassing, and allows the capacity of the restored batteries to reach 85% or above of the nominal capacity.

Description

technical field [0001] The invention relates to a method for intelligent regeneration and repair of industrial storage batteries, which belongs to the technical field of storage battery repair. Background technique [0002] During the discharge process of the battery, a large number of lead sulfate crystals will be produced, and a large amount of lead sulfate crystals will deposit on the negative plate for a long time to form a large area of ​​coverage, reducing the contact area between the plate and the electrolyte. Normal lead-acid batteries Lead sulfate crystals are formed during discharge, and can be easily reduced to lead during charge. If the maintenance and use of the battery is not good, such as frequent undercharging or overdischarging, coarse and hard lead sulfate will gradually form on the negative electrode. Due to the poor charging ability during charging, a large amount of gas is precipitated. This phenomenon usually occurs at the negative electrode and is ca...

AI Technical Summary

Problems solved by technology

But it is not suitable for old batteries, because when the precipitated gas scours the sulfate, it also strongly scours the active material on the positive plate, making the active material soften or even fall off, which basically has no market value.

[0008] 4. Add active agent: use chemical method to eliminate lead sulfate crystallization, which not only has high cost, increases battery internal resistance, softens the battery plate, but also changes and destroys the original structure of the electrolyte, the service life after repair is short, and side effects Larger, its repair rate is about 40%. This method will cause the battery to be used for about 2 months due to the corrosion of the plate by chemical agents, and it will be completely dead and scrapped, and cannot be regenerated.

This method is fast and effective, but it has a relatively large impact on the life of the battery, especially for large batteries that cannot be repaired at all.

It is relatively narrow in market application and cannot generate large-scale social and economic value