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Repairing liquid of lead-acid storage battery

A lead-acid battery and repair fluid technology, applied in the field of electrochemistry, can solve the problems of inability to reduce lead sulfate crystals to dilute sulfuric acid, inability to obtain widespread promotion and application, battery plate damage, etc., and to reduce the trend of mutual coalescence , The effect of preventing sulfation and increasing the stability of the system

Inactive Publication Date: 2012-10-03
HEFEI JIALIAN ACCUMULATOR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are serious technical defects in this method of repairing batteries, mainly: 1. Only superficial and partial removal of sulfuric acid crystals; 2. Damage to battery plates; 3. Cannot reduce lead sulfate crystals to dilute sulfuric acid; 4. , The battery plate will continue to crystallize, and the performance of the repaired battery will soon decline
Because it does not really repair the battery, this method cannot be widely promoted and applied

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Prepare materials according to the following formula (percentage by weight): 94.5% of deionized water, 2.5% of nano-silicon nitride powder, 0.5% of poly N-vinylpyrrolidone, 0.5% of PEG20000, 0.5% of relative low molecular weight sodium polyacrylate dispersant, poly Vinyl alcohol 0.5%, polyvinylamide 0.5%, sodium nitrite (preservative) 0.5%;

[0024] Put the above materials in a glass heating kettle (do not use any metal containers and metal tools to heat, stir, or pack), heat the temperature to 80°C, and keep it warm for 1 hour, so that the above materials are completely dissolved in deionized water, and the appearance is translucent. Solution, that is, stored at 0-40 ℃.

Embodiment 2

[0026] Prepare materials according to the following formula (percentage by weight): 90% of deionized water, 4.0% of nano silicon nitride powder, 1.0% of poly N-vinylpyrrolidone, 1.0% of PEG300, 1.0% of relatively low molecular weight sodium polyacrylate dispersant, poly Vinyl alcohol 1.0%, polyvinylamide 1.0%, dehydroacetic acid (preservative) 1.0%;

[0027] Put the above materials in an enamel heating kettle (do not use any metal containers and metal tools to heat, stir, or package), heat the temperature to 85°C, and keep it warm for 1 hour, so that the above materials are completely dissolved in deionized water, and the appearance is translucent. Solution, that is, stored at 0-40 ℃.

[0028] The invention can effectively dissolve and remove the lead sulfate crystals on the battery pole plate, restore the function of the pole plate, restore the battery capacity after repair to more than 85% of the new battery capacity, and form a protective film on the surface of the battery ...

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Abstract

The invention discloses a repairing liquid of a lead-acid storage battery, which is prepared through the following steps: preparing materials according to the following formula (weight percent): 90-94.5% of de-ionized water, 2.5-4.0% of nano silicon nitride powder, 0.5-1.0% of poly N-vinyl pyrrolidone, 0.5-1.0% of polyethylene glycol, 0.5-1.0% of relative low molecular sodium polyacrylate dispersing agent, 0.5-1.0% of polyvinyl alcohol, 0.5-1.0% of polyethylene amide, 0.5-1.0% of preservative; placing the materials in a glass or enamel heating kettle, heating up to 80-85 DEG, preserving temperature to obtain a semitransparent solution so as to obtain the repairing liquid. The repairing liquid can effectively dissolve and remove the lead sulfate crystal on a battery polar plate, recovers the function of the polar plate, repairs the failed lead-acid storage battery, and forms a protecting film on the surface of the battery polar plate, so that the battery polar plate does not crystallize the lead sulfate, and the service life of the battery is prolonged.

Description

technical field [0001] The invention belongs to the technical field of electrochemistry, and in particular relates to a repair fluid for lead-acid storage batteries. Background technique [0002] As the most important stable power supply and DC power supply, lead-acid batteries are widely used in various industries and departments such as aviation, railways, automobiles, ships, communications, finance, and national defense. Among all kinds of batteries, lead-acid batteries account for the largest proportion, about 75% of the total batteries. At present, the social use of lead-acid batteries in my country is more than 300 million, and it is still increasing rapidly in recent years. [0003] After the lead-acid battery has been used for a certain period of time (generally about two years), or due to improper use (battery undercharge, overcharge, overdischarge, long-term storage without charging, etc.), lead sulfate (PbSO 4 ) will re-precipitate, forming a layer of white and ...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/08
CPCY02E60/126Y02E60/10
Inventor 陈清海郭春才张芬红
Owner HEFEI JIALIAN ACCUMULATOR TECH
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