CN101083346A - Lead acid accumulator recovery technique - Google Patents
Lead acid accumulator recovery technique Download PDFInfo
- Publication number
- CN101083346A CN101083346A CNA2006100838029A CN200610083802A CN101083346A CN 101083346 A CN101083346 A CN 101083346A CN A2006100838029 A CNA2006100838029 A CN A2006100838029A CN 200610083802 A CN200610083802 A CN 200610083802A CN 101083346 A CN101083346 A CN 101083346A
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- Prior art keywords
- battery
- lead
- discharge
- accumulator cell
- activator
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
The invention relates to the lead-acid battery restoration technology, provides a lead-acid battery recovery technology of destroy and decompose the irreversible thick hard sulfate crystal rapidly and restore the accumulator cell to the normal running condition. Used the 'physical + chemistry' comprehensive method, puts the lead-acid battery activator into the accumulator cell, and uses the specific radio impulse electric current of the high frequency accumulator cell activate meter to activate and restore the battery, finally used the intelligent/constant flow battery discharge meter to examine the capacity of the activation battery, at the same time of the electric discharge further promotes the effective component of the activator more thorough the battery. The main feature of the invention is rapid, safe, effective. The joint of the activator, on the one hand has accelerated the decomposition of lead sulfate which has the originally no-electric conduction, on the other hand has guaranteed the temperature of elevating not excessively of the accumulator cell when adds the high frequency high pressure to activate, has protected the accumulator cell effectively.
Description
Technical field
The present invention relates to electrochemical techniques, be specifically related to a kind of recovery technique of lead acid accumulator, belong to the International Classification of Patents H01M10/42 technical field of " using or safeguard the method and the device of secondary cell or secondary half-cell ".
Background technology
The normal at present lead acid accumulator that uses forms the lead sulfate crystallization when discharge, can more easily be reduced to lead when charging.If the operation and maintenance of battery is not good at, for example lay up for a long time or often undercharge, overdischarge or the like, will form a kind of thick hard lead sulfate crystallization on the negative pole gradually.This lead sulfate crystallization is non-conductive, is difficult to decompose under the charging modes of routine.This phenomenon is called as " irreversible sulfation ".It causes that the internal resistance increase, capacity of storage battery descend, and the main cause of its formation is that the recrystallization phenomenon of lead sulfate causes thick crystallization to form back solubility reducing and then can't decompose.
Summary of the invention
Purpose of the present invention is to overcome above-mentioned deficiency, provides a kind of irreversible thick hard vitriol is smashed decomposition rapidly, makes storage battery return to the lead acid accumulator recovery technique of normal operating condition.
The objective of the invention is to be achieved through the following technical solutions.
Lead acid accumulator recovery technique, its main purpose are that irreversible thick hard vitriol is promptly smashed decomposition, make storage battery return to normal user mode.Adopted the integrated approach of " physics+chemistry ", lead acid accumulator active agent is poured in the storage battery, with the specific high-frequency pulse current of high-frequency accumulator activation instrument battery is activated recovery again, with intelligence/constant current battery discharging instrument the activation battery is carried out the discharge examination capacity at last, further promoted activator active ingredient more to go deep into inside battery in the time of discharge.
The main feature of the inventive method is rapidly, safely, effectively.The adding of activator has been quickened on the one hand originally nonconducting lead sulfate and has been decomposed, and has guaranteed also that on the other hand storage battery temperature when adding the high frequency high pressure and activate does not excessively raise, and has protected storage battery effectively.
The storage battery that adopts this method to handle, the megacryst on the pole plate all is decomposed, and the acid ion of electrolyte increases greatly, and proportion also returns to normal level, and storage battery resets into a new initial condition again.For the normal storage battery that uses of the overwhelming majority, handle through such recovery, a life cycle again can work on.
" lead acid accumulator recovery technique " of the present invention can be widely used in different industries such as communication, railway, electric power, IT, finance, radio and television, colliery, automobile, electric bicycle; the lead acid accumulator that restores through present technique can farthest increase the service life; reduce and scrap pollution; economize on resources; the protection environment; the saving fund, the beneficial people benefit the nation.
Embodiment
Below each step is specifically described:
Activation
The interpolation of activating solution
The activating solution addition is according to adding proportion, according to checking in the step estimate of situation of battery increased in right amount to vulcanizing serious battery.
Observe battery electrolyte inside situation before adding earlier, more as electrolyte, need to take out a part so that add activating solution.
Need add more activating solution for large-sized battery, can divide several times and add, it is fierce to avoid once adding reaction.
For sealing lean solution batteries such as valve-regulated, after the activating solution interpolation finishes, exceed pole plate with liquid level to be advisable for 1～2 centimetre, what liquid level was not enough should replenish deionized water.
Activating solution add finish after, need with static 1 hour of battery or more than so that activating solution fully reaction in battery.Should check liquid level and handle accordingly (interpolation) in the battery behind static the finishing once more
Activate
Activated current is adjusted at 0.1～0.3C according to battery sulfuration situation, if the battery situation is better, can get final product about 0.15C.Electric current should show situation according to battery and progressively promote, and can not reach activated current too quickly to avoid changing the damage that causes suddenly because of the internal resistance of cell.
Bigger as whole Battery pack otherness, can be separately in groups with the behindhand battery found in the testing process, activation in advance, this moment, activated current can suitably increase, and adjusted between 0.3～0.5C.
With surplus tele-release light in the battery, battery can be accepted the big activated current of relative normal charging current and violent bubbling and temperature rising not take place when checking because of raw capacity.
Activate about 2～3 hours (there are not violent bubbling of brine electrolysis or temperature to surpass control line as most batteries, but the proper extension activationary time), should reduce the activation electric current then, about about 0.1C.
Bubbling in the activation is normal phenomenon (the tiny continuous bubble of emerging from pole plate).
Activate the later stage, at this moment whether the part battery can should be observed bubble and mainly produce at the bus-bar place because of the violent bubbling of brine electrolysis, in this way, then should reduce electric current.
Activate the later stage, because the transfer ratio step-down of electric current, battery temperature can rise gradually, should adjust electric current (internal temperature of battery should be controlled at below 45 ℃) according to the battery temperature situation.
The battery basic voltage is set up back (monomer when the 0.1C electric current voltage more than 2.5), should keep the 0.1C electric current and rise to wait for electrolyte density.
During the normal battery full capacity, voltage should be between 2.7～2.8 under the 0.1C electric current for monomer, and is too high or too low all undesired.
The proportion rising required time of electrolyte is longer, and the normal battery electrolyte proportion that recovers is between 1.26～1.3, and the more battery proportion of some activator addition may be lower.
When battery proportion rises to more than 1.26 and 2 hours no rising trend, and cell voltage recovers normal (monomer under the 0.1C electric current voltage should between 2.7～2.8), and activation can finish.
Please refer to activation instrument operation manual in the activation, carry out equipment, environment, personnel's maintenance.Simultaneously, because battery must be opened the back activation, should avoid foreign matter to fall into battery.
Discharge
Discharge is a ring important in the activation process, is not only the effect of check activation, also can promote activator active ingredient more to go deep into inside battery by discharge.
Battery should be left standstill a period of time (being not less than 1 hour) before the discharge, so that battery electrolyte inside equiblibrium mass distribution, and should wait battery temperature to drop to 30 ℃
The discharge situation should be when detecting at the beginning of discharge consistent.Under not urgent situation of time, should preferentially select the discharge of 10 hour rates, the capacity that detects like this could guarantee accurately (heavy-current discharge only can show the active material recovery situation of polar board surface, and the active material recovery situation of deep layer can't be verified).
During discharge, battery cover can be covered, the electricity pool inner water too loses when avoiding discharging.
Discharge process should be carried out record, can contrast electric discharge recording just.
Discharge scenario is smooth, and capacity shows when reaching full capacity, should end discharge with the protection battery.
Discharge capacity surpasses the situation of battery nominal capacity, is because battery has certain redundancy (assurance) capacity when dispatching from the factory.
As having some battery recovery limited in the discharge, Ying Zaiqi reaches and ends to take out from battery pack behind the voltage, and other batteries continue discharge, to understand all battery recovery situations.
When having ready conditions, available internal resistance of cell checkout equipment checks before the battery discharge and the internal resistance after the discharge (or by the internal resistance of discharge pressure drop estimating battery), and can with the contrast of activation previous crops.If any new internal resistance of cell data, can grasp the battery situation more accurately.
After finishing, discharge should judge the battery recovery situation according to activation data and discharge data.For recovery situation battery preferably, should carry out the preparation that next step former environment uses simulation; Battery for recovery situation falls behind can activate once more according to activating step.
Former environment uses simulation
It is a very important link that former environment uses simulation.Some battery, the capacity of display is recovered during discharge, but its internal resistance also do not adjust to fully new battery level (because of the internal resistance of cell relevant with multiple factor), such battery, under former environment constant voltage and current limiting occupation mode, can cause the terminal voltage rising too fast because internal resistance is too high, finally cause the battery charge deficiency, discharge capacity reduces.
Former environment uses simulation, and the true environment for use with battery is consistent as far as possible.
Use simulation to show that the qualified battery of battery situation can come into operation by former environment.
The battery that shows battery meter and have a long way to go with the recovery capacity is used in former environmental simulation, after using common charger (not pressure limiting) and discharge instrument and discharging and recharging 1～2 circulation by 0.1C, carries out former environment once more and uses and simulate.Can come into operation after qualified.
The result of study experiment:
This technology has been passed through the test of national authority department, reaches 96% for telecommunications with the recovery effect of groups of battery.
In user oriented actual test and using, successively in Heilungkiang, ground such as Liaoning, Zhejiang, Jiangsu, Tianjin, Shandong, Sichuan, Guangdong, the relevant lead acid accumulator of industry departments such as telecommunications, electric power, railway, automobile, electric bicycle, army has been carried out sufficient test and constantly perfect.
The specifications and models of equipment are progressively complete, and the operating process refinement is goed deep into, and detection experience and methodological science are reasonable and perfect, and these have all further verified the superior function and the great potential in actual applying of present technique.
Prove according to the actual effect of prolonged application and the test of authoritative department, this technology is for monomer or lead acid accumulator in groups, effect aspect removal sulfuration, recovery regeneration is remarkable, and for the capacity after the recovery regeneration of waste battery, average energy reaches more than 96% of full capacity.
Claims (1)
1, a kind of lead accumulator recovery technique, be that irreversible thick hard vitriol is promptly smashed decomposition, make storage battery return to the technology of normal condition, it is characterized in that: it has adopted physics, chemical integrated approach, lead acid accumulator active agent is poured in the storage battery, with the specific high-frequency pulse current of high-frequency accumulator activation instrument battery is activated recovery again, with intelligence/constant current battery discharging instrument the activation battery is carried out the discharge examination capacity at last, further promoted activator active ingredient more to go deep into inside battery in the time of discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100838029A CN101083346A (en) | 2006-06-02 | 2006-06-02 | Lead acid accumulator recovery technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100838029A CN101083346A (en) | 2006-06-02 | 2006-06-02 | Lead acid accumulator recovery technique |
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| CN101083346A true CN101083346A (en) | 2007-12-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870530A (en) * | 2016-05-18 | 2016-08-17 | 山西嘉禾兴节能技术有限公司 | Waste lead storage battery repair and activation method |
| CN111279575A (en) * | 2017-08-31 | 2020-06-12 | 大众汽车有限公司 | Device for electropolishing an energy store having at least one lithium ion cell, charger, method for operating a charger |
| CN111342149A (en) * | 2020-02-26 | 2020-06-26 | 天能电池集团股份有限公司 | Lead storage battery cathode devulcanization repairing method |
| CN113193246A (en) * | 2021-04-30 | 2021-07-30 | 山东琨源电力科技有限公司 | Device for repairing lead-acid battery on line |
-
2006
- 2006-06-02 CN CNA2006100838029A patent/CN101083346A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870530A (en) * | 2016-05-18 | 2016-08-17 | 山西嘉禾兴节能技术有限公司 | Waste lead storage battery repair and activation method |
| CN111279575A (en) * | 2017-08-31 | 2020-06-12 | 大众汽车有限公司 | Device for electropolishing an energy store having at least one lithium ion cell, charger, method for operating a charger |
| US11721842B2 (en) | 2017-08-31 | 2023-08-08 | Volkswagen Aktiengesellschaft | Device for electropolishing an energy storage device comprising at least one lithium ion cell, charger, and method for operating the charger |
| CN111342149A (en) * | 2020-02-26 | 2020-06-26 | 天能电池集团股份有限公司 | Lead storage battery cathode devulcanization repairing method |
| CN111342149B (en) * | 2020-02-26 | 2021-06-01 | 天能电池集团股份有限公司 | Lead storage battery cathode devulcanization repairing method |
| CN113193246A (en) * | 2021-04-30 | 2021-07-30 | 山东琨源电力科技有限公司 | Device for repairing lead-acid battery on line |
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