CN102751543B - Pulse current method for repairing lead-acid battery and lead-acid storage battery sulphur remover - Google Patents

Pulse current method for repairing lead-acid battery and lead-acid storage battery sulphur remover Download PDF

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Publication number
CN102751543B
CN102751543B CN201110096658.3A CN201110096658A CN102751543B CN 102751543 B CN102751543 B CN 102751543B CN 201110096658 A CN201110096658 A CN 201110096658A CN 102751543 B CN102751543 B CN 102751543B
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internal resistance
pulse
single chip
chip control
control module
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CN102751543A (en
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胡馨
胡敏
黄剑毅
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Xiao Min
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The invention discloses a pulse current method for repairing a lead-acid storage battery, and a lead-acid storage battery sulphur remover, and relates to storage battery technology. A single-chip control module controls a pulse current generating module to output pulse for sulfur removal on a counter electrode; an internal resistance measuring module measures internal resistance of the lead-acid battery; the single-chip control module determines the trend of the internal resistance according to data; if the internal resistance declines, the pulse current generating module outputs unchanged pulse to continue the sulfur removal; and if the internal resistance stops declining or rises, the pulse current generating module stops the sulfur removal. The remover can automatically determine precipitation state of counter electrode lead sulfate crystal through the internal resistance, and take corresponding measures, so as to remove sulfur on the storage battery without damage the counter electrode.

Description

Repair pulse current method and the lead acid accumulator desulfurizing device of lead acid accumulator
Technical field
The present invention relates to battery technology field, is pulse current method and desulfurizing device, especially the lead acid accumulator desulfurizing device of repairing lead acid accumulator.
Background technology
Lead acid accumulator in use can produce lead sulfate material, and in charging process, lead sulfate can resolve into lead and sulfuric acid, again participates in the electrochemical reaction of storage battery.But lead sulfate is a kind of material of very easy crystallization, conventionally crystallization postprecipitation is at the pole plate of storage battery, and therefore reduces the effecting reaction area of storage battery, reduces the capacity of storage battery.In order to overcome a difficult problem for the easy crystallization of lead sulfate, people have carried out a large amount of research and experiment.
Common solution comprises chemical method and physical method.Chemical method is to dissolve by inject chemical substance in storage battery the lead sulfate crystal being deposited on storage battery substrate; But because sealing maintenance free cell is current trend, the inapplicable maintenance free cell of chemical method.Physical method is constantly to launch high frequency electric pulse by battery two-stage to battery, is smashed the lead sulfate crystal being deposited on storage battery substrate by electric pulse, recovers the effecting reaction area of accumulator plate, improves battery capacity; Meanwhile, lead sulfate crystal is crashed to pieces into granule, comes back in the middle of electrochemical reaction.
The main research direction of (nearly 20 years) people is best at which kind of pulse sulfur limitation effect for many years, for example United States Patent (USP) U.S.Pat.No.5,491,399, U.S.Pat.No.5,525,892, U.S.Pat.No.5,677,612, U.S.Pat.No.5,808,447, U.S.Pat.No.5,891,590 patents such as dozens of such as grade, its difference is only the shape difference of pulse.
High frequency electric pulse can the lead sulfate crystal of scavenger precipitation on storage battery substrate have become people's common recognition, but high frequency electric pulse technology is still controversial.Research discovery, by the storage battery of same high frequency electric pulse, some repairing effects are very good, and some repairing effects are not only bad, and even some battery capacity declines, to such an extent as to battery complete failure.Trace it to its cause, high frequency electric pulse technology repairing effect is good, is because high frequency electric pulse has been removed the lead sulfate crystal on accumulator plate; High frequency electric pulse causes battery capacity to decline, and is because high frequency electric pulse directly impacts accumulator plate, causes accumulator pole dash-board injury.But people never find and judge that high frequency electric pulse is in sulphur removal state or the criterion in damage polar plate status.Due to the uncertainty of high frequency electric pulse technology reparation storage battery effect, this technology never has large area and uses.
Summary of the invention
The object of this invention is to provide a kind of pulse current method and lead acid accumulator desulfurizing device of repairing lead acid accumulator, may make battery capacity decline to solve existing pulse current storage battery recovery technique, the problem even losing efficacy.
In order to achieve the above object, technical solution of the present invention is:
Repair a pulse current method for lead acid accumulator, its single chip control module control impuls electric current generation module output pulse is to accumulator plate sulphur removal; Measured the internal resistance of lead acid accumulator by internal resistance measurement module, and internal resistance value is passed to single chip control module storage, data judge internal resistance trend thus; If internal resistance declines, pulse current generation module output pulse is constant, continues sulphur removal; If internal resistance stops declining, or has rising, pulse current generation module stops sulphur removal;
By the precipitation state of internal resistance automatic decision accumulator plate lead sulfate crystal, and take related technical measures, can reach battery vulcanization removing, do not damage again the object of pole plate.
The pulse current method of described reparation lead acid accumulator, it comprises step:
S1, pulse desulfurizing device power supply are given electricity, single chip control module command pulse electric current generation module transmitting sulphur removal pulse, and to accumulator plate, sulphur removal starts;
S2, after one hour, single chip control module command pulse electric current generation module is suspended, meanwhile, instruction internal resistance measurement module obtains the internal resistance R1 of lead acid accumulator by AC measurment method, and internal resistance R1 is passed to single chip control module storage;
The command pulse electric current generation module transmitting sulphur removal pulse again of S3, single chip control module, after one hour, pulse current generation module is suspended, single chip control module instruction internal resistance measurement module obtains the internal resistance R2 of lead acid accumulator by AC measurment method, and internal resistance R2 is passed to single chip control module storage;
S4, single chip control module judge internal resistance trend according to data, if internal resistance R1-internal resistance R2 > 0 continues command pulse electric current generation module transmitting sulphur removal pulse, continue to repeat S2-S3 step; If internal resistance R1-internal resistance R2 < 0, suspends sulphur removal, after one hour, carry out S5 step;
S5, single chip control module instruction internal resistance measurement module obtain the internal resistance R3 of lead acid accumulator by AC measurment method, and internal resistance R3 is passed to single chip control module storage;
S6, wait one hour;
S7, single chip control module instruction internal resistance measurement module obtain the internal resistance R4 of lead acid accumulator by AC measurment method, and internal resistance R4 is passed to single chip control module storage;
S8, single chip control module judge internal resistance trend according to data, if internal resistance R3-internal resistance R4 > 0 continues command pulse electric current generation module transmitting sulphur removal pulse, continue to repeat S2-S3 step; If internal resistance R3-internal resistance R4 < 0, repeats S5-S8 step.
The pulse current method of described reparation lead acid accumulator, pulse frequency and the duty ratio of single chip control module control impuls electric current generation module described in it; The pulse duration of pulse current generation module is 10us, and pulse frequency is 8KHz.
The lead acid accumulator desulfurizing device that described pulse current method is used, comprises pulse current generation module, single chip control module, internal resistance measurement module, pulse desulfurizing device power supply; Its pulse current generation module, internal resistance measurement module are parallel to the positive and negative terminal of lead acid accumulator, and are electrically connected with single chip control module respectively, carry out both-way communication; Pulse desulfurizing device power supply is electrically connected with pulse current generation module, single chip control module, internal resistance measurement module respectively, is they power supplies.
Described lead acid accumulator desulfurizing device, single chip control module Zhong Kaoyou function software described in it.
The invention has the beneficial effects as follows, first extends the useful life of storage battery.Because very most of battery malfunction is because accumulator plate has deposited a large amount of lead sulfate crystal, storage battery effecting reaction area is reduced.According in a large amount of mobile base stations that use storage battery of statistics, be about 3 years the average life of storage battery, the application of the invention lead acid accumulator desulfurizing device, and can extend to 8 years useful life; Second keeps storage battery in optimum Working, and general storage battery is in the time of work, and pole plate is some sulfate precipitate leading crystal always, thereby affects the capacity of storage battery, the application of the invention plumbic acid desulfurizing device, and accumulator plate is all the time in clean conditions.
Brief description of the drawings
Fig. 1 is lead acid accumulator desulfurizing device structural representation block diagram of the present invention;
Fig. 2 is the pulse current method flow schematic diagram of reparation lead acid accumulator of the present invention;
Fig. 3 is the sulphur removal state diagram to polar plate of lead acid storage battery sulphur removal by pulse current method of the present invention;
Fig. 4 is the microgram of new polar plate of lead acid storage battery; Species distribution on pole plate is even, is spongy;
Fig. 5 is the microgram of safeguarding extraordinary accumulator plate; Can see, some have occurred pole plate changes, and hardening, appear in particle chap;
Fig. 6 is the lead sulfate crystal microgram producing on accumulator plate in the middle of using;
Fig. 7 is the pole plate microgram after pulse sulphur removal a period of time;
Fig. 8 is the final microgram of pulse sulphur removal;
Fig. 9 is the accumulator internal resistance measuring circuit figure of lead acid accumulator pulse desulfurizing device of the present invention;
Figure 10 is the pulse-generating circuit circuit diagram of lead acid accumulator pulse desulfurizing device of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is principle and the connection diagram of lead acid accumulator pulse desulfurizing device of the present invention.In figure, storage battery 1, pulse current generation module 2, single chip control module 3, internal resistance measurement module 4, pulse desulfurizing device power supply 5.Lead acid accumulator pulse desulfurizing device of the present invention, comprises pulse current generation module 2, single chip control module 3, internal resistance measurement module 4, pulse desulfurizing device power supply 5.Wherein, pulse current generation module 2, internal resistance measurement module 4 are parallel to the positive and negative terminal of lead acid accumulator 1, and are electrically connected with single chip control module 3 respectively, carry out both-way communication.Pulse desulfurizing device power supply 5 is electrically connected with pulse current generation module 2, single chip control module 3, internal resistance measurement module 4 respectively, is they power supplies.
Repair the test of storage battery learns through pulse current method many times: when starting pulse current while impacting the lead sulfate crystal precipitating on pole plate, lead sulfate crystal is smashed by pulse current gradually, and returns to normal electrochemical reaction, and meanwhile, accumulator internal resistance declines; But after being deposited in lead sulfate crystal on accumulator plate and being eliminated, pulse current starts to impact pole plate itself, result is, pulse current punctures part accumulator plate, and accumulator internal resistance gos up, and accumulator property declines simultaneously.
Based on above result of the test, may make battery capacity decline in order to overcome existing pulse current storage battery recovery technique, a kind of pulse current method of repairing lead acid accumulator of the present invention, as shown in Figure 2, the pulse current method flow schematic diagram of reparation lead acid accumulator of the present invention, pulse frequency and the duty ratio of single chip control module 3 control impuls electric current generation modules 2.Conventionally pulse duration is 10us, and pulse frequency is 8KHz; Internal resistance measurement module 4 obtains the internal resistance of lead acid accumulator 1 by AC measurment method, and internal resistance is passed to single chip control module 3, and data judge internal resistance trend thus.If internal resistance declines, it is constant that pulse current generation module 2 is exported pulse, continues sulphur removal; If internal resistance stops declining, or has rising, pulse current generation module 2 stops sulphur removal.Because pulse desulfurizing device can be by the precipitation state of internal resistance automatic decision lead sulfate crystal, and take related technical measures, can reach battery vulcanization removing, but not damage the object of pole plate.
A kind of pulse current method of repairing lead acid accumulator of the present invention, concrete steps comprise:
S1, pulse desulfurizing device power supply 5 are given electricity, and single chip control module 3 command pulse electric current generation modules 2 are launched sulphur removal pulse, and to pole plate, sulphur removal starts.
S2, after one hour, single chip control module 3 command pulse electric current generation modules 2 are suspended, meanwhile, instruction internal resistance measurement module 4 obtains the internal resistance R1 of lead acid accumulator 1 by AC measurment method, and internal resistance R1 is passed to single chip control module 3 and store.
S3, single chip control module 3 again command pulse electric current generation module 2 are launched sulphur removal pulse, after one hour, pulse current generation module 2 is suspended, single chip control module 3 instruction internal resistance measurement modules 4 obtain the internal resistance R2 of lead acid accumulator 1 by AC measurment method, and internal resistance R2 are passed to single chip control module 3 and store.
S4, single chip control module 3 judge internal resistance trend according to data, if internal resistance R1-internal resistance R2 > 0 continues command pulse electric current generation module 2 and launches sulphur removal pulse, continue to repeat S2-S3 step; If internal resistance R1-internal resistance R2 < 0, suspends sulphur removal, after one hour, carry out S5 step.
S5, single chip control module 3 instruction internal resistance measurement modules 4 obtain the internal resistance R3 of lead acid accumulator 1, and internal resistance R3 are passed to single chip control module 3 and store by AC measurment method.
S6, wait one hour.
S7, single chip control module 3 instruction internal resistance measurement modules 4 obtain the internal resistance R4 of lead acid accumulator 1, and internal resistance R4 are passed to single chip control module 3 and store by AC measurment method.
S8, single chip control module 3 judge internal resistance trend according to data, if internal resistance R3-internal resistance R4 > 0 continues command pulse electric current generation module 2 and launches sulphur removal pulse, continue to repeat S2-S3 step; If internal resistance R3-internal resistance R4 < 0, repeats S5-S8 step.
The pulse current method of reparation storage battery of the present invention is: can transmitted pulse electric current and the battery vulcanization removing device of simultaneously measuring accumulator internal resistance be connected in parallel on and need the storage battery two ends of repairing.Transmitted pulse electric current, measures accumulator internal resistance, if accumulator internal resistance declines, continues transmitted pulse electric current; If accumulator internal resistance tends towards stability, stop sulphur removal, make storage battery all the time in the very low state of internal resistance.So, on-line intelligence ground is in running order for a long time for battery vulcanization removing device.Fig. 9 is accumulator internal resistance measuring circuit, and LTC6943 provides 0.110 and 0.010V voltage, amplifier IC1 and power MOSFET Q1, and it is the square wave current source that 0.5Hz, electric current are 1A that composition is stablized closed loop frequency, and current source is applied to the two ends of mesuring battary.Because battery has internal resistance, battery two ends can produce the square-wave signal that a frequency is 0.5Hz.S1, S2 and chopper amplifier IC5 can amplify the square-wave signal that mesuring battary two ends produce, the voltage of output 0-1V, and the different internal resistances of cell produces varying voltage signal.Figure 10 is pulse-generating circuit of the present invention, and pulse-generating circuit produces pulse by single-chip microcomputer.The pulsed drive Q1 switch that single-chip microcomputer produces, and produce thus by the pulse of L1, L2.Storage battery for clearance, obtains pulse by L2, removes the lead sulfate crystal on accumulator plate.
Find through large quantity research, the reason that pulse sulfur removal technology reduces battery capacity is that after lead sulfate crystal is eliminated totally, high-frequency impulse directly impacts pole plate, causes pole plate damage, thereby reduces battery capacity.Further research finds that in pulse sulphur removal process, the internal resistance of cell declines; In pulse damage pole plate process, the internal resistance of cell rises.As Fig. 3, wherein abscissa be sulphur removal time (my god), ordinate is the internal resistance of cell (milliohm).State according to can determine sulphur removal with lower curve: still damage polar plate status in sulphur removal state; Can also determine whether the crystal on pole plate is cleaned out simultaneously.
Through judgement, if in sulphur removal state, desulfurizing device works on; If in damage polar plate status, stop sulphur removal.Can remove like this lead sulfate crystal of storage battery, not damage again pole plate, make the best of both worlds simultaneously.
Referring to Fig. 4, it is the microgram of new polar plate of lead acid storage battery; Species distribution on pole plate is even, is spongy.
Referring to Fig. 5, for safeguarding the microgram of extraordinary accumulator plate; Can see, some have occurred pole plate changes, and hardening, appear in particle chap.
Referring to Fig. 6, it is the lead sulfate crystal microgram producing on accumulator plate in the middle of using.The lead sulfate crystal that can produce on the accumulator plate in the middle of generally using; What wherein replace spongy pole plate is the thick crystal grain of particle.The generation of crystal grain, can reduce the effecting reaction area of accumulator plate, reduces sulfuric acid concentration and electrolyte density, finally reduces battery capacity, causes storage battery to scrap in advance.
Be pulse sulphur removal a period of time pole plate microgram afterwards referring to Fig. 7, part crystal is crashed to pieces.
It is the final microgram of pulse sulphur removal referring to Fig. 8.Comparison diagram 6, crystal disappears substantially; Comparison diagram 4, cavernous body reappears.Prove that pulse sulphur removal produces effect.
Fig. 9 is the accumulator internal resistance measuring circuit figure of lead acid accumulator pulse desulfurizing device of the present invention; Figure 10 is the pulse-generating circuit circuit diagram of lead acid accumulator pulse desulfurizing device of the present invention, this circuit produces pulse by single-chip microcomputer, the pulsed drive Q1 switch that single-chip microcomputer produces, and produce thus by the pulse of L1, L2, storage battery for clearance obtains pulse by L2, removes the lead sulfate crystal on accumulator plate.

Claims (4)

1. a pulse current method of repairing lead acid accumulator, is characterized in that, single chip control module control impuls electric current generation module output pulse is to accumulator plate sulphur removal; Measured the internal resistance of lead acid accumulator by internal resistance measurement module, and internal resistance value is passed to single chip control module storage, data judge internal resistance trend thus; If internal resistance declines, pulse current generation module output pulse is constant, continues sulphur removal; If internal resistance stops declining, or has rising, pulse current generation module stops sulphur removal;
By the precipitation state of internal resistance automatic decision accumulator plate lead sulfate crystal, and take related technical measures, can reach battery vulcanization removing, do not damage again the object of pole plate;
The pulse current method of wherein said reparation lead acid accumulator comprises step:
S1, pulse desulfurizing device power supply are given electricity, single chip control module command pulse electric current generation module transmitting sulphur removal pulse, and to accumulator plate, sulphur removal starts;
S2, after one hour, single chip control module command pulse electric current generation module is suspended, meanwhile, instruction internal resistance measurement module obtains the internal resistance R1 of lead acid accumulator by AC measurment method, and internal resistance R1 is passed to single chip control module storage;
The command pulse electric current generation module transmitting sulphur removal pulse again of S3, single chip control module, after one hour, pulse current generation module is suspended, single chip control module instruction internal resistance measurement module obtains the internal resistance R2 of lead acid accumulator by AC measurment method, and internal resistance R2 is passed to single chip control module storage;
S4, single chip control module judge internal resistance trend according to data, if internal resistance R1-internal resistance R2 > 0 continues command pulse electric current generation module transmitting sulphur removal pulse, continue to repeat S2-S3 step; If internal resistance R1-internal resistance R2 < 0, suspends sulphur removal, after one hour, carry out S5 step;
S5, single chip control module instruction internal resistance measurement module obtain the internal resistance R3 of lead acid accumulator by AC measurment method, and internal resistance R3 is passed to single chip control module storage;
S6, wait one hour;
S7, single chip control module instruction internal resistance measurement module obtain the internal resistance R4 of lead acid accumulator by AC measurment method, and internal resistance R4 is passed to single chip control module storage;
S8, single chip control module judge internal resistance trend according to data, if internal resistance R3-internal resistance R4 > 0 continues command pulse electric current generation module transmitting sulphur removal pulse, continue to repeat S2-S3 step; If internal resistance R3-internal resistance R4 < 0, repeats S5-S8 step.
2. the pulse current method of reparation lead acid accumulator as claimed in claim 1, is characterized in that, pulse frequency and the duty ratio of described single chip control module control impuls electric current generation module; The pulse duration of pulse current generation module is 10us, and pulse frequency is 8KHz.
3. the lead acid accumulator desulfurizing device that pulse current method as claimed in claim 1 is used, comprises pulse current generation module, single chip control module, internal resistance measurement module, pulse desulfurizing device power supply; It is characterized in that, pulse current generation module, internal resistance measurement module are parallel to the positive and negative terminal of lead acid accumulator, and are electrically connected with single chip control module respectively, carry out both-way communication; Pulse desulfurizing device power supply is electrically connected with pulse current generation module, single chip control module, internal resistance measurement module respectively, is they power supplies.
4. lead acid accumulator desulfurizing device as claimed in claim 3, is characterized in that, described single chip control module Zhong Kaoyou function software.
CN201110096658.3A 2011-04-18 2011-04-18 Pulse current method for repairing lead-acid battery and lead-acid storage battery sulphur remover Expired - Fee Related CN102751543B (en)

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PCT/CN2011/082859 WO2012126252A1 (en) 2011-04-18 2011-11-24 Storage battery repairing method and device

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CN109449509A (en) * 2018-10-18 2019-03-08 陈明 A kind of lead-acid accumulator off-network restorative procedure and instrument for repairing
CN110752411B (en) * 2019-11-12 2022-09-20 朴元成 Battery repairing method and device
CN113437370A (en) * 2021-05-13 2021-09-24 广西电网有限责任公司南宁供电局 Storage battery efficiency maintenance method and equipment based on resonant pulse repair technology

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CN101577438A (en) * 2009-06-19 2009-11-11 深圳市迪迪美环保科技有限公司 High-capacity back-up power maintaining method based on remote monitoring platform

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