Waste lead storage battery repair and activation method

A lead-acid battery and activation method technology, applied in the direction of lead-acid battery, secondary battery repair/maintenance, battery recycling, etc., can solve the problems of lead sulfate recrystallization, solubility reduction, inability to decompose, etc., to reduce recycling and reuse cost, enhancement of low-temperature operation capability, and elimination of self-discharge phenomenon

Inactive Publication Date: 2016-08-17
山西嘉禾兴节能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This lead sulfate crystal is non-conductive and difficult to decompose under conventional charging methods. This phenomenon is called "irreversible sulfation", which causes the internal resistance of the battery to increase and the capacity to decrease. The main reason for its formation is sulfuric acid. The recrystallization phenomenon of lead, which leads to the reduction of solubility after the formation of coarse crystals and the inability to decompose
[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 It takes as long as a week or even a month at a time, or the effect is not obvious, and more importantly, the waste lead-acid battery has not been systematically, accurately, and detailedly inspected and judged before being repaired, and it is repaired blindly. It often leads to unsatisfactory repair effect and high repair cost

Method used

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Examples

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Comparison scheme
Effect test

example 1

[0107] Activation and restoration of 2 sets of 2V400AH forklift power batteries in the third phase project of Mengniu Helin Base in Inner Mongolia. The 2 sets of batteries have been used for 3 years before restoration, and the appearance is intact without bulging deformation, the terminals are intact without leakage, and the busbars, tabs, etc. can be seen from the liquid injection hole without corrosion, and the upper part of the positive plate can be seen intact. After testing, there is no other physical damage to this group of batteries. After the initial charge and discharge test, the battery capacity of the 1# box is 40%, and the battery capacity of the 2# box is 40%. From March 1st to March 5th, 2016, the applicant used the "lead-acid battery recovery technology" described in the present invention to restore two sets of batteries at the site of the third phase project of Mengniu Helin Base in Inner Mongolia. Subsequent test data showed that the 1# and 2# box batteries re...

example 2

[0110] Activation and restoration of Group 2 2V400AH sealed valve lead-acid batteries in Chuanzhang Substation of Xuejiawan Power Supply Bureau, Inner Mongolia. The 2 sets of batteries have been used for 3 years before restoration, and the appearance is intact without bulging deformation, the terminals are intact without leakage, and the busbars, tabs, etc. can be seen from the liquid injection hole without corrosion, and the upper part of the positive plate can be seen intact. After testing, there is no other physical damage to this group of batteries. After the initial charge and discharge test, the original capacity of the battery group 1 is 80%, the capacity of the battery group 2 is 80%, and the capacity of some single batteries is 60%. From December 11 to December 17, 2015, the applicant used the "lead-acid battery recovery technology" of the present invention to restore two sets of batteries at Xuejiawan Power Supply Bureau. After 10 hours of discharge test on the activ...

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Abstract

The invention relates to the field of recycling and reusing of waste lead storage batteries, in particular to a waste lead storage battery repair and activation method. Aimed at solving the problems existing in the prior art, appearance inspection, instrument testing, primary charging and discharging detection, and original capacity inspection are performed at first; then a repair and activation agent is added, an activation instrument adopts specific high-frequency impulse current to perform repair and activation as well as excitation, a discharging instrument is used to discharge the activated battery for capacity inspection, and discharging further simultaneously promotes the penetration of effective ingredients of the repair and activation agent into the battery; finally, self-discharging detection, battery enclosing, charging and discharging simulation and the like are performed, irreversible sulfate crystals on a pole plate of the storage battery are better cleaned away and avoided, the contact area of an active substance of the pole plate with an electrolyte is greatly enlarged, the function degeneration phenomenon of the waste storage battery is recovered to be higher than 86% of original functions, and the service life of the storage battery is prolonged by more than one time.

Description

technical field [0001] The invention relates to the field of recovery and reuse of waste lead-acid batteries, in particular to a method for repairing and activating waste lead-acid batteries. Background technique [0002] Lead-acid battery, as the most important stable power source and DC power source, has a long history and is widely used. They are active in various industries such as telecommunications, electric power, finance, automobiles, railways, radio and television, solar energy, wind energy, and national defense. Especially with the rapid development of the automobile and electric bicycle industries. While lead-acid batteries are being used in large quantities, the problem of battery scrapping has become a focus of concern for governments and users of various countries. Western developed countries have strict regulations on the use and recycling of lead-acid batteries. The government encourages users to use new technologies to extend battery life. The repair and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54H01M10/42H01M10/06
CPCH01M10/06H01M10/42H01M10/54Y02E60/10Y02W30/84
Inventor 任燕军任宣宇
Owner 山西嘉禾兴节能技术有限公司
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