Lead-acid storage battery vulcanization repair process

Abstract

The invention discloses a lead-acid storage battery vulcanization repair process, which is characterized by comprising the following steps: performing battery vulcanization repair by steps of storage battery preparation, water and power supply, primary discharge test, assembly, repair solution making, repair, secondary discharge test, delivery and clearing up. The lead-acid storage battery vulcanization repair process of the invention can effective promote the softening and decomposition of lead sulfate crystals and restore the capacity of the lead-acid storage battery considerably. The process can restore over 96 percent of used storage batteries and make the capacity of the storage batteries close to the rated capacity of the storage batteries and the service life of the storage batteries to design service life. The repair process avoids causing damages to the internal physical and electrochemical structures of the lead-acid storage battery, reduces the environmental pollution caused by waste storage batteries, saves resources, energy resources and is low in carbon; due to high maneuverability, the process is easy to promote; and with high efficiency and low cost, the process isexpected to bring great economic benefits to the society.

Description

technical field [0001] The invention relates to a battery repairing process, in particular to a repairing process aimed at reducing the capacity of a lead-acid battery due to vulcanization. Background technique [0002] Among storage batteries, lead-acid batteries have the advantages of mature technology, low price, good charging and discharging performance, and safe use. However, due to the sulfation of the plate, the actual service life of the lead-acid battery is far from reaching the theoretical service life, which not only wastes resources, but also produces a large amount of solid waste, waste acid, etc., causing serious pollution to the environment. [0003] The generation and harm of sulfation are as follows: [0004] Lead-acid batteries generate PbSO with very low solubility during discharge 4 , and continuously precipitated in the form of crystals after reaching saturation. PbSO formed during normal discharge 4 Evenly distributed on the plate of the battery wit...

AI Technical Summary

Problems solved by technology

Coarse PbSO4 crystals formed on the plate will block the micropores of the plate and the separator, hinder the penetration of the electrolyte, increase the internal resistance of the battery, increase the charging voltage, and reduce the charge acceptance of the battery

At this time, it is difficult to charge by conventional methods, and in the later stage of the charging process, the reaction of electrolyzing water is mainly carried out, and a large amount of gas is precipitated, causing the battery to lose water, causing early loss of capacity or even failure

[0006] At present, domestic and foreign lead-acid batteries are mainly repaired after the capacity is reduced in the early stage of vulcanization during use: high-current charging method, hydrotherapy, pulse repair, etc., but these methods take too long for the lead-acid batteries that have Once for a week or even a month, or the effect is not obvious

At present, there is also an activator for lead-acid batteries developed by Japan Haotek Co., Ltd., which mainly uses the added activator to decompose sulfate and separate it from the battery plate, but it can only be used for the flooded type. For the open battery, for the liquid-poor sealed battery, because the repair agent cannot be dissolved and penetrated in the battery, it is basically unusable, even if the recovery degree that can be used is only about 80%, it cannot meet the relevant standards stipulated by the state