CN102646855A - Lead-acid battery repair agent - Google Patents
Lead-acid battery repair agent Download PDFInfo
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- CN102646855A CN102646855A CN2012101439784A CN201210143978A CN102646855A CN 102646855 A CN102646855 A CN 102646855A CN 2012101439784 A CN2012101439784 A CN 2012101439784A CN 201210143978 A CN201210143978 A CN 201210143978A CN 102646855 A CN102646855 A CN 102646855A
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- China
- Prior art keywords
- lead
- battery
- repair agent
- renovation agent
- sulfate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention belongs to the technical field of accumulator repair, and particularly relates to a lead-acid battery repair agent which is prepared by mixing the following substances in percentage by mass: 2-5% of polyvinyl alcohol, 0.5-1% of glucose, 0.1-0.5% of calcium sulfate, 0.1-0.3% of ferric sulfate and the balance of deionized water. The repair agent provided by the invention can remove deposited crystals on the electrodes; and meanwhile, the repair agent can form a protective layer to prevent the newly generated lead sulfate from deposition on the electrodes. The capacity of the repaired accumulator can be enhanced to more than 95%, and the service life can be prolonged by one time or more.
Description
Technical field
The invention belongs to storage battery recovery technique field, be specifically related to a kind of lead acid accumulator renovation agent.
Background technology
Under ideal state, lead sulfate can be dissolved in electrolyte fully in charging process.But, under actual conditions, understand some lead sulfate and still stick to electrode surface, and initial hardening, sulphation formed.Because constantly accumulation, the resistance of battery will increase, and the battery needed electrochemical reaction of function of bringing into normal play can suffer damage, thereby active principle is reduced and produces thermal runaway or pole plate distortion simultaneously and make battery failure.China has 1,000 ten thousand kilowatt hour capacity of lead acid battery to scrap in advance present every year, reaches design service life far away, and its internal structure is not damaged more than 85%, reaches the plate designs life-span far away, but complete repairing and reusing.
Storage battery vulcanization mainly contains following four kinds of restorative procedures:
1, large current charge: (density reaches 100mA/cm to adopt the high current density charging
2), puncture the crystallization of dissolve sulfur lead plumbate, to the better storage battery of some outgoinies, certain effect is arranged.But this method is brought in eliminating sulfidation and is increased the weight of dehydration and the softening problem of positive plate, and battery life is caused major injury easily.
2, pulse current charge: adopt impulse wave to make the lead sulfate crystalline solid be converted into the reversible lead sulfate that crystal is tiny, electrochemistry is high again, make it can normally participate in the chemical reaction that discharges and recharges.But this method causes battery pole plates acutely to generate heat easily, active material comes off and dehydration.
3, online sulphur removal: on battery pack, install online desulfurizing device additional; When storage battery floating charge state and charged state, send high-frequency pulse current, through long little current impulse charging; Peel off the lead sulfate crystal on the pole plate, suppress lead sulfate crystal adhering to again on pole plate simultaneously.Shortcoming is that equipment cost is high, and bad to serious sulfation battery effect, repairing efficiency is long.To consistency of battery pack problem DeGrain.
4, chemical sulphur removal: in battery, add " activator ", mainly contain K
+, Na
+The alkali metal ion of class, these ions in the negative terminal surface enrichment, make polar board surface local pH value lower under the effect of electric current, and lead sulfate solubility in the alkali environment is very big, so the lead sulfate on surface is partly dissolved.But such activator also has dissolution to lead, reduces the pole plate mechanical strength, and active material comes off on the acceleration pole plate.
The main restorative procedure of above-mentioned several kinds of storage batterys all can not fundamentally solve the sulphation problem of storage battery, and the quality after the storage battery reparation, performance etc. can not win storage battery manufacturer and user's satisfaction.
Summary of the invention
Problem during the object of the invention is repaired to existing lead acid accumulator provides a kind of lead acid accumulator renovation agent, and this renovation agent can be removed the crystallization of deposition from electrode; Also can form protective layer simultaneously, prevent that the new lead sulfate that produces from electro-deposition, can recover battery capacity to greatest extent, prolong the useful life of battery, can be promoted to more than 95% through its capacity of storage battery of repairing, can prolong useful life one times and more than.
For realizing above-mentioned purpose, the technical scheme that the present invention takes is: a kind of storage battery renovation agent, form by following substances by mass percent mixing:
Said polyvinyl alcohol can increase the adhesive effect of positive active material, forms network, stops active material to break away from, thereby improves useful life;
Said glucose can with pole plate generation reduction reaction, the lead sulfate of positive plate is reduced to lead oxide;
Said calcium sulfate is incorporated in the positive active material, has increased the voltage under various discharge rates, and crystallization overpotential and concentration polarization are had the effect of alleviating;
After said ferric sulfate joins in the storage battery, in whole repair process, play catalytic action.
Beneficial effect of the present invention:
(1) can improve electrode surface electrolyte dispersibility on the one hand after renovation agent of the present invention is activated, and then change electrode surface microcosmic CURRENT DISTRIBUTION; Simultaneously in electrochemical process, renovation agent be centered around the pole plate particle around, the restriction rate of crystalline growth makes the pole plate particle with slower speed deposition, the pole plate particle will only position growth in structure, thereby can obtain densification, smooth electrode surface.
(2) diminish owing to the pole plate crystal grain; Electrode specific surface area increases; Because renovation agent has improved the electrode surface structure, and the surface of good structure helps the interface electron transfer, reduce the electrochemical reaction resistance of electrode simultaneously; And then also helping improving the electro catalytic activity of electrode, the electro catalytic activity of electrode obviously improves.
(3) renovation agent of the present invention can obviously improve the electrode oxygen evolution potential, suppresses separating out of oxygen, helps the generation of OH free radical, makes electrode have better electro catalytic activity.
(4) renovation agent of the present invention has good wet performance, makes crystal and matrix bond tightr of electrode surface, thereby makes electrode have better useful life and corrosion resistance.
Embodiment
Embodiment 1
A kind of storage battery renovation agent, form by following substances by mass percent mixing:
Embodiment 2
A kind of storage battery renovation agent, form by following substances by mass percent mixing:
Embodiment 3
A kind of storage battery renovation agent, form by following substances by mass percent mixing:
To the renovation agent of above-mentioned three embodiment preparation, used the battery in 3 years to repair to one group, this Battery pack monomer standard is 2V500AH, does not have other inefficacy and defective, outward appearance is clean and tidy.Through 10 hour rate discharge examination, discharging current is 50A, and the average discharge capacity of battery is 220AH, is 44% of standard cell capacity, and storage battery vulcanization is serious.
Use the technical process of renovation agent reparation lead acid accumulator of the present invention following:
1, visual examination: shell does not have obvious tumble injury, confirms the date of manufacture;
2, battery charging and discharging detects;
3, filling renovation agent: service life and amount of capacity according to battery add renovation agent;
4, repair: ten hour rates discharge and recharge three samsaras;
5, discharge, the result is repaired in inspection.
The reparation result of above-mentioned three embodiment:
Embodiment 1: the 50A current discharge is adopted in test, and the discharge duration is 9 hours 55 minutes, and the monomer actual discharging capacity is 485.8AH, emits 99.2% of battery standard capacity.
Embodiment 2: the 50A current discharge is adopted in test, and the discharge duration is 10 hours 13 minutes, and the monomer actual discharging capacity is 510.8AH, emits 102.2% of battery standard capacity.
Embodiment 3: the 50A current discharge is adopted in test, and the discharge duration is 10 hours 05 minute, and the monomer actual discharging capacity is 504.2AH, emits 100.8% of battery standard capacity.
Claims (1)
1. storage battery renovation agent is characterized in that being mixed by following substances by mass percent and forms:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101439784A CN102646855A (en) | 2012-05-10 | 2012-05-10 | Lead-acid battery repair agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101439784A CN102646855A (en) | 2012-05-10 | 2012-05-10 | Lead-acid battery repair agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102646855A true CN102646855A (en) | 2012-08-22 |
Family
ID=46659530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101439784A Pending CN102646855A (en) | 2012-05-10 | 2012-05-10 | Lead-acid battery repair agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102646855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065971A (en) * | 2018-08-17 | 2018-12-21 | 佛山皖和新能源科技有限公司 | A kind of preparation method of the suspending stabilized type colloidal electrolyte of high-cooling property |
| CN112259812A (en) * | 2020-12-22 | 2021-01-22 | 河南工学院 | Lead storage battery repairing agent and repairing method |
-
2012
- 2012-05-10 CN CN2012101439784A patent/CN102646855A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065971A (en) * | 2018-08-17 | 2018-12-21 | 佛山皖和新能源科技有限公司 | A kind of preparation method of the suspending stabilized type colloidal electrolyte of high-cooling property |
| CN109065971B (en) * | 2018-08-17 | 2020-08-21 | 徐海军 | Preparation method of suspension stable type colloid electrolyte with high heat dissipation performance |
| CN112259812A (en) * | 2020-12-22 | 2021-01-22 | 河南工学院 | Lead storage battery repairing agent and repairing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Resume New Energy Technology Co., Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |