CN102208698A - Method for treating returned batteries - Google Patents
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- CN102208698A CN102208698A CN2011101153246A CN201110115324A CN102208698A CN 102208698 A CN102208698 A CN 102208698A CN 2011101153246 A CN2011101153246 A CN 2011101153246A CN 201110115324 A CN201110115324 A CN 201110115324A CN 102208698 A CN102208698 A CN 102208698A
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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
Abstract
The invention provides a method for treating returned batteries, which belongs to the technical field of storage batteries. The invention solves the problem of inaccurate capacity judgment generated when the traditional battery manufacturer treats the returned batteries. The method for treating the returned battery comprises the following steps of: a. charging in parallel: after connecting a certain number of batteries in parallel, connecting the batteries to both ends of a charging power supply for charging and after fully charging, entering a step b; b. judging the capacities: detaching all the batteries and singly discharging each battery through a discharging instrument till the battery is discharged to the appointed voltage, recording the discharging time of each battery and judging the capacity of each battery; and c. recharging: connecting the discharged batteries in parallel again and recharging the batteries through the charging power supply till electricity is full. In the method for treating the return batteries, the batteries to be treated are charged at constant voltage in a parallel connection way so that the charging voltage of each battery can reach the appointed voltage, the full electricity can be ensured, and the capacity judgment is accurate.
Description
Technical field
The invention belongs to the battery technology field, relate to a kind of Battery disposal method of returning.
Background technology
Storage battery is applied in the various aspects of national economy more and more, in order to improve power, reduce and use electric current, generally use with many series connection of battery of equal capacity, number of elements is many more in the battery pack, and working voltage is high more, and the discharging current in the use is also more little, this helps the use of battery, prolongs the useful life of battery.
But in use, because the number of elements of battery is more in the battery pack, often owing to individual cell fault in the battery pack, and caused whole Battery pack to return, after the battery of fault is delivered to battery producer, do capacity again behind the reply battery full charge and judge the capacity of picking out underproof " behindhand battery ".
Wherein the most frequently used a kind of method be exactly " series process ", 1, at first measure the open circuit voltage of each battery, with open circuit voltage uniformly battery conspire to create one group, use 0.2I
2(A) current charges, at any time detect cell voltage in the charging process, the battery of higher, the basic charging foot of voltage is pulled down one by one, treat that all batteries all are full of substantially, with each battery pack series connection, (, different voltage is set again according to each producer's battery behavior with given voltage, only be example with 15.5V/ in the present patent application) constant voltage charge, charging current is less than 0.05I by the time
2(A)/and when group, think the battery full charge.2, carry out capacity and judge,, use I by national standard
2(A) current discharge, make each battery be put into 10.5V promptly stop the discharge, according to be discharged to the 10.5V required time judge whether qualified.3, repeat the charging once more of the 1st step.Return in the battery at same group, owing to artificial or non-artificial reason, if the situation that exists individual cell to fall behind is difficult to guarantee " behindhand battery " also full charge with " series process " charging.
For this reason, people improve " series process " commonly used, and method is as follows: 1, pre-arcing: the battery that will respectively return, is put into 10.5V and stops automatically by the unified discharge of normalized current with discharge instrument, and each battery discharge status is consistent; 2, each battery series connection constant current is overcharged, fill into 1.2C
2-1.5C
2(Ah) electric weight gets final product, and can guarantee that so every battery can both full charge; 3, capacity is judged; 4, repeating step 2 recharges.This " first electric discharge " is though can be in the problem that to a certain degree solves " behindhand battery " undercharge, but because the time of making the product that the together individual time period is return battery is not necessarily identical, through after user's the use, actual capacity possibility difference between battery pack is very big, in " first electric discharge ", when recharging after the discharge, can cause the low battery of capacity seriously to overcharge, the battery possibility undercharge that capacity is high, may impact subsequently capacity result of determination, can't detect every accurate capacity of battery.
Summary of the invention
The objective of the invention is existing the problems referred to above when battery is return in processing at existing battery producer, and proposed a kind of each battery charge fully and capacity judge the Battery disposal method of returning accurately.
Purpose of the present invention can realize by following technical proposal: a kind of Battery disposal method of returning, and utilize charge power supply and discharge instrument to handle, it is characterized in that these processing method bag following steps:
A, charged in parallel; Be connected on the charge power supply two ends after the battery of some is connected in parallel and charge, treat to enter step b behind the full charge;
B, capacity are judged; Each battery is pulled down, and each battery is discharged separately, till being discharged to given voltage, note the discharge time of each battery, judge its capacity with discharge instrument;
C, recharge; Battery after the discharge is connected in parallel again, again it is charged by charge power supply, till full charge.
Inhomogeneous through the cell voltage that uses, these batteries are connected in parallel, use the given voltage constant voltage charge, neither can overcharge also and can not fill less, can make every abundant full charge of battery.After step b finishes, judge whether this battery is qualified according to battery discharge to the needed time of given voltage, whether defective battery is selected to abandon according to underproof degree or is continued to participate in to do his in addition after the recharging of step c and use.
Above-mentioned a kind of returning in the Battery disposal method, described step a is when connecting battery, all batteries are divided at least one unit in parallel, each unit in parallel is connected in the charge power supply two ends in parallel, the positive pole of each battery is serially connected by a positive lead in the described unit in parallel, negative pole then is serially connected by negative lead, and positive lead is connected with the positive pole of charge power supply, and negative lead then is connected with the negative pole of charge power supply.
Be connected in series by positive lead and negative lead between the both positive and negative polarity of each battery in each unit in parallel, only positive lead need be connected with the charge power supply positive and negative electrode with negative lead and get final product, and do not need the positive and negative electrode of each battery directly is connected with charge power supply, simplified wiring greatly.
Above-mentioned a kind of returning in the Battery disposal method, described step c is when connecting battery, all batteries are divided at least one unit in parallel, each unit in parallel is connected in the charge power supply two ends in parallel, the positive pole of each battery is serially connected by a positive lead in the described unit in parallel, negative pole then is serially connected by negative lead, and positive lead is connected with the positive pole of charge power supply, and negative lead then is connected with the negative pole of charge power supply.
Above-mentioned a kind of returning in the Battery disposal method, the orientation of each battery is vertical mutually with the orientation of each unit in parallel in the described unit in parallel.Because the battery number of elements is more, charging current is bigger, if battery " " word is arranged, has both wasted the place, increase charging voltage again and fall, and inadvisable, and adopt this arrangement mode farthest to address the above problem.
Above-mentioned a kind of returning in the Battery disposal method, the number of batteries in described each unit in parallel is identical.
Above-mentioned a kind of returning in the Battery disposal method, described discharge instrument is an adjustable current independence constant flow discharging device.This discharge instrument can stop after discharging into given voltage voluntarily.
Compared with prior art, originally return the Battery disposal method and utilize parallel way that pending battery is carried out constant voltage charge, make the charging voltage of each battery can both reach given voltage, assurance can both full charge, and capacity is judged accurately.Processing procedure is simple, and production efficiency is higher, and the operative employee only needs the short-term cultivation can be on duty.
Description of drawings
Fig. 1 is the connection diagram of originally returning storage battery in the Battery disposal method.
Fig. 2 originally returns the connecting line result schematic diagram that connects storage battery in the Battery disposal method.
Embodiment:
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Originally returning the Battery disposal method utilizes adjustable independent constant flow discharging device and low-voltage, high-current charge power supply E (as 15.5V100A, 15.5V200A, concrete charging voltage can be regulated according to the battery behavior of each producer) to handle these processing method bag following steps:
A, charged in parallel; Being connected on charge power supply E two ends after the storage battery 1 of some is connected in parallel charges, the charging voltage that can guarantee 1 later stage of every storage battery all can reach given voltage (as 15.5V), constant voltage time should surpass 8h under the voltage of 15.5V, and storage battery 1 generally can both be sufficient.Treat to enter step b behind the full charge; Inhomogeneous through storage battery 1 capacity that uses, these storage batterys 1 are connected in parallel, use the given voltage constant voltage charge, neither can overcharge also and can not fill less, can make every storage battery 1 abundant full charge.
B, capacity are judged; Each storage battery 1 is pulled down, and each storage battery 1 is discharged separately, till being discharged to given voltage, note the discharge time of each storage battery 1, judge its capacity with discharge instrument; Be judged as qualified storage battery 1 and continue to participate in step c, and underproof product is selected purposes according to defective degree, can allow it also continue to participate in the charging of step c for capacity a little less than the storage battery 1 of standard, can be applied to the lower fields of requirement such as plant maintenance after charging is finished, serious underproof storage battery 1 does not then carry out the charging of step c to it.
C, recharge; Storage battery 1 after the discharge is connected in parallel again, and E charges to it again by charge power supply, till full charge.
By shown in Figure 1 pending storage battery 1 is coupled together, storage batteries 1 is divided into several unit in parallel, each unit transverse in parallel is arranged and the charge power supply E two ends that are connected on parallel with one another.Four storage batterys 1 are all arranged in each unit in parallel, these four storage batterys 1 are vertically arranged, and their positive pole and negative pole are towards identical, the positive pole of storage battery 1 is connected with the positive pole of charge power supply E after being serially connected by a positive lead 2 in the same unit in parallel, and their negative pole is connected with the negative pole of charge power supply E after then being serially connected by a negative lead 2.As shown in Figure 2, each root connecting line 2 is provided with five clips 3, and a wherein outermost clip 3 is used for directly being connected with charge power supply E, is electrical connection between each clip 3 and the connecting line 2.Each unit in parallel just can be connected in series all storage batterys 1 in the unit by two connecting lines 2, only positive lead 2 need be connected with charge power supply E both positive and negative polarity with negative lead 2 and get final product, simplified wiring greatly, be connected in parallel and be similarly between each storage battery 1 that is formed by connecting.By the arrangement mode between each unit in parallel, in the same unit in parallel between each storage battery 1, can make full use of the place and put more storage battery 1 and handle.
With respect to existing " series process ", " first electric discharge ", this multiple process has the following advantages:
1, every battery full charge all, and charging voltage unanimity, with the multiple process charging, to the charging later stage, the voltage pressure reduction between each battery is no more than 0.2V, and this just guarantees every battery full charge, and seldom overcharges.
Stop voluntarily when 2, discharging, and writing time, a people can operate, and need not people measurement, people's record, can reduce operating personnel, enhances productivity.
3, new employee simple to operate is easy to training, and the layman can be on duty through short-term cultivation.
4, owing to charging, discharge equipment input voltage only need alternating current 220V, equipment price is lower, and the production efficiency height, uses so be fit to very much the office stationed abroad after-sale service of some battery producers.In office stationed abroad, general 1 people operation, about 10,000 yuan of gross investments (2 of charging devices, 6 of discharge equipments), can form at least 80/days battery production scale of reprocessing of (if every group has 4 batteries, promptly 20 groups/days); And if in Battery Plant, because it is concentrated relatively to return goods, it is more to return quantity, people's operation, about 20,000 yuan of gross investments (4 of charging devices, 12 of discharge equipments) can form the production scale of at least 160/days (promptly 40 groups/sky).
5, simple during combo, generally returning the battery combo needs 3 groups of data, that is: discharge time, final voltage and open circuit voltage carry out combo according to technological requirement.In this method,, so during combo, only need 2 groups of data of discharge time and open circuit voltage, therefore make combo simple relatively because every battery discharge final voltage all is set to 10.5V.
6, various size battery are charged together.Because the battery size of returning is not necessarily identical, in general the different model battery should separately be done and discharge and recharge.But in this method, the final voltage of the different battery of amount of capacity reaches 15.5V, thus the charging of also putting together, and can both be fully sufficient and do not overcharge
7, judge thermal runaway, cause that the factor of battery thermal runaway is a lot, but finish in battery charge, charging voltage and ambient temperature one regularly, thermal runaway is mainly by the saturation decision of electrolyte.Under fully charged situation, measuring and respectively returning battery pack is temperature and charging voltage (for relatively, having added one group of new battery) under the 15.5V state in charging voltage.Voltage through measure finding each battery still is differentiated, and finds voltage battery on the low side, and the time of making the product is corresponding also longer, and the appearance temperature drift of battery during charging, specifically sees Table 1:
Each cell voltage of table 1, temperature survey table
From table 1, can find, the battery that charging voltage is higher, service time is shorter relatively, and temperature is also relatively low.General normal lead acid accumulator is under the voltage of 15.5V, and temperature rises not obvious; And after battery has used a period of time,, use the 15.5V constant voltage charge in this case again owing to there is phenomenon of losing water, the temperature of battery can rise very fast.Charging voltage battery on the low side in the table 1, service time is corresponding also longer, and temperature is corresponding also higher, and this illustrates that these batteries should in time replenish electrolyte.
In order to confirm this situation, we take out the 2# battery pack in the table 1,4# battery pack and 8# battery pack, leave standstill one day (make internal temperature decline between each battery pack, and temperature reaching consistent), respectively with same charger charging, the commentaries on classics green time of three Battery packs sees Table 2 again.Add a certain amount of electrolyte in every battery of 3# battery pack, with same charger charging, it changes green time and also sees Table 2 again.
Table 2 battery changes the green time table
With charging normal device when charging, charger is just jumped green light for a long time or is not jumped green light, if not adding electrolyte does not directly mail to the client, will can produce thermal runaway very soon just as this class battery of 3# battery pack, causes the battery bulging then.We often found in the past that the battery maintenance of being sent out was not easy to jump green light, even bulging soon, this is when returning my company for the first time owing to this battery by analysis, may the lamp situation just appear not jumping at the user place, but the detection method that is adopted was bad at that time, only judged whether the capacity of battery is normal, such battery was not judged the thermal runaway state that whether is in, do not add electrolyte, cause the final bulging of battery.After introducing " multiple process ", the customer complaint battery maintenance is not jumped the situation of lamp and is greatly taken on a new look.
Because battery pack is different in each client's frequency of utilization, client's vehicle condition is not necessarily identical, the charge parameter situation of charger also is not quite similar, therefore can not definitely fully only stipulate whether need to add electrolyte with the time of making the product length of battery, must be according to the characteristics of every Battery pack, confirm that the certain dehydration of battery could add electrolyte, otherwise behind the too much electrolyte of the battery of not dehydration adding, cause the very fast decay of battery capacity on the contrary.
Return the various detection method contrasts of battery and see Table 3.
Three kinds of scheme contrast tables of table 3
As seen from Table 3, not only easy and simple to handle, with low cost when returning battery with " multiple process " processing, and can determine the thermal runaway battery easily, this will improve the battery maintenance rate greatly, be fit to the popularization of numerous clients and battery producer.Need only charging voltage and discharging voltage characteristic at the variety classes battery simultaneously, the charging voltage of numerical value and the instrument of discharge voltage are specified in customization, and this method can be widely used in all kinds of storage batterys.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (6)
1. return the Battery disposal method for one kind, utilize charge power supply (E) and discharge instrument to handle, it is characterized in that, these processing method bag following steps:
A, charged in parallel; Be connected on charge power supply (E) two ends after the battery of some is connected in parallel and charge, treat to enter step b behind the full charge;
B, capacity are judged; Each battery is pulled down, and each battery is discharged separately, till being discharged to given voltage, note the discharge time of each battery, judge its capacity with discharge instrument;
C, recharge; Battery after the discharge is connected in parallel again, and (E) charges to it again by charge power supply, till full charge.
2. a kind of Battery disposal method of returning according to claim 1, it is characterized in that, described step a is when connecting battery, all batteries are divided at least one unit in parallel, each unit in parallel is connected in charge power supply (E) two ends in parallel, the positive pole of each battery is serially connected by a positive lead (2) in the described unit in parallel, negative pole then is serially connected by negative lead (2), positive lead (2) is connected with the positive pole of charge power supply (E), and negative lead (2) then is connected with the negative pole of charge power supply (E).
3. a kind of Battery disposal method of returning according to claim 1, it is characterized in that, described step c is when connecting battery, all batteries are divided at least one unit in parallel, each unit in parallel is connected in charge power supply (E) two ends in parallel, the positive pole of each battery is serially connected by a positive lead (2) in the described unit in parallel, negative pole then is serially connected by negative lead (2), positive lead (2) is connected with the positive pole of charge power supply (E), and negative lead (2) then is connected with the negative pole of charge power supply (E).
4. according to claim 2 or 3 described a kind of Battery disposal methods of returning, it is characterized in that the orientation of each battery is vertical mutually with the orientation of each unit in parallel in the described unit in parallel.
5. according to claim 2 or 3 described a kind of Battery disposal methods of returning, it is characterized in that the number of batteries in described each unit in parallel is identical.
6. according to claim 1 or 2 or 3 described a kind of Battery disposal methods of returning, it is characterized in that described discharge instrument is an adjustable current independence constant flow discharging device.
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| CN2011101153246A CN102208698A (en) | 2011-05-05 | 2011-05-05 | Method for treating returned batteries |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109449508A (en) * | 2018-10-09 | 2019-03-08 | 天能电池集团（安徽）有限公司 | A kind of Making sets of batteries remaining power recharging method |
| CN110190342A (en) * | 2019-04-30 | 2019-08-30 | 超威电源有限公司 | A kind of method for group matching of lead-acid accumulator |
| CN112349977A (en) * | 2020-09-30 | 2021-02-09 | 天能电池集团股份有限公司 | Method for improving charging qualification rate of returned battery |
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| CN101247050A (en) * | 2007-04-13 | 2008-08-20 | 北京木牛电气技术有限责任公司 | DC power device and its charge and discharge monitoring method |
| CN101606299A (en) * | 2007-02-09 | 2009-12-16 | Sk能源株式会社 | Charge equalization apparatus |
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| WO2004097956A2 (en) * | 2003-04-25 | 2004-11-11 | Motorola, Inc. | Dual use thermistor for battery cell thermal protection and battery pack overcharge/undercharge protection |
| CN1877901A (en) * | 2006-06-30 | 2006-12-13 | 宁波力达物料搬运设备厂 | Accumulator charging control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109449508A (en) * | 2018-10-09 | 2019-03-08 | 天能电池集团（安徽）有限公司 | A kind of Making sets of batteries remaining power recharging method |
| CN109449508B (en) * | 2018-10-09 | 2021-09-07 | 天能电池集团（安徽）有限公司 | Method for recharging residual batteries of storage battery matching set |
| CN110190342A (en) * | 2019-04-30 | 2019-08-30 | 超威电源有限公司 | A kind of method for group matching of lead-acid accumulator |
| CN112349977A (en) * | 2020-09-30 | 2021-02-09 | 天能电池集团股份有限公司 | Method for improving charging qualification rate of returned battery |
| CN112349977B (en) * | 2020-09-30 | 2022-03-29 | 天能电池集团股份有限公司 | Method for improving charging qualification rate of returned battery |
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Application publication date: 20111005 |