CN103326076B - A kind of electrokinetic cell recycling method - Google Patents
A kind of electrokinetic cell recycling method Download PDFInfo
- Publication number
- CN103326076B CN103326076B CN201310199225.XA CN201310199225A CN103326076B CN 103326076 B CN103326076 B CN 103326076B CN 201310199225 A CN201310199225 A CN 201310199225A CN 103326076 B CN103326076 B CN 103326076B
- Authority
- CN
- China
- Prior art keywords
- battery
- operating mode
- test
- discharge
- electrokinetic cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000004064 recycling Methods 0.000 title claims abstract description 7
- 238000012360 testing method Methods 0.000 claims abstract description 47
- 238000012216 screening Methods 0.000 claims abstract description 28
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000004146 energy storage Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of electrokinetic cell recycling method, described method comprises: (1) test battery discharge and recharge parameter; (2) test battery self discharge; (3) thermal effect is tested; (4) test battery impedance; (5) operating mode screening; (6) operating mode is distributed.The present invention, by the screening of novel multi-parameter, improves electrokinetic cell utilizes process consistency at secondary, thus extends the useful life of battery.By the screening technique based on battery applications operating mode, give full play to the residue performance that secondary utilizes electrokinetic cell.Using self-discharge of battery and thermal effect as screening parameter, take into full account that battery utilizes the fail safe in process at secondary.
Description
Technical field
The present invention relates to a kind of method recycling electric energy, specifically relate to a kind of method that electrokinetic cell recycles
Background technology
The performance requirement of electric automobile to electrokinetic cell is higher, especially has higher requirements to capacity, to guarantee the security performance in the power performance of electric automobile, continual mileage and running, must change when its capacity drops to a certain degree to it.From the battery that electric automobile is retired, still there is the residual capacity of more than 70%.For the mainly lithium-ion-power cell that electric automobile adopts, this battery has that specific energy is high, good temp characteristic, the advantage such as have extended cycle life, through again screening and combo, have and can be used for relatively good, relatively low to the battery performance requirements occasion of operating mode, the secondary realizing electrokinetic cell utilizes.Electrokinetic cell secondary utilize refer to electrokinetic cell hydraulic performance decline, electric automobile instructions for use can not be met after, as energy production arrangement other field continue use.
For the electrokinetic cell got off retired from electric automobile before combo, normally according to the parameter such as capacity, internal resistance, self-discharge rate of the battery foundation as screening and combo.And current existing electrokinetic cell, due to problems such as the defect of system, the differences of service condition, cause health degree changing factor more complicated, the discreteness grow of battery, the inconsistency between battery is large, and, electrokinetic cell is when secondary utilizes, and its applying working condition has been different from the applying working condition on electric automobile, therefore, the screening of electrokinetic cell and method for group matching on electric automobile, be not suitable for screening and method for group matching that secondary utilizes.
Summary of the invention
For the deficiencies in the prior art, the present invention electric automobile power battery tradition screening and method for group matching basis on, analyze the characteristic of the retired electrokinetic cell of electric automobile, and can applicable place and operating mode in conjunction with it, the key parameter that optimizing power battery secondary utilizes, proposes the screening and the method for group matching that are applicable to the utilization of electrokinetic cell secondary.The method can give full play to the residue performance of the retired electrokinetic cell of electric automobile, and reduces its potential safety hazard in use, improves the economy that electrokinetic cell secondary utilizes.The present invention on the basis of traditional power battery screening and method for group matching, in conjunction with the electrochemical properties analysis of electrokinetic cell, and considers that it may carry out the operating mode of secondary utilization first, proposes a kind of method that electrokinetic cell uses.
The reusable operating mode of electrokinetic cell comprises stand-by power supply, the peak load shifting for electrical network, the power smooth etc. for renewable energy power generation of computer and information system.There is different applying working conditions different application scenarios, also different to the performance requirement of battery, by the screening of new electrokinetic cell and method for group matching, by the battery applications of different performance to different occasions, can ensure that the performance of battery meets the requirement of use occasion, give full play to the performance of battery again, save the energy.
The object of the invention is to adopt following technical proposals to realize:
A kind of electrokinetic cell recycling method, it is characterized in that, described method comprises:
(1) test battery discharge and recharge parameter;
(2) test battery self discharge;
(3) thermal effect is tested;
(4) test battery impedance;
(5) operating mode screening; With
(6) operating mode is distributed.
Preferably, described step (1) described test comprises test battery capacity and energy.
Preferably, described step (1) test comprises writes testing process, test battery discharge and recharge, record battery parameter.
Preferably, described step (2) comprises the self discharge parameter of test battery, for getting rid of the battery of internal short-circuit.
Preferably, the test of described step (3) comprises measurement battery temperature and caloric value.
Preferably, described step (4) comprises the AC impedance of test battery, according to different battery, selects analog circuit, carries out the parsing of impedance spectrogram.
Preferably, described step (5) comprising:
The operating mode level and smooth to power fluctuation, selects the high-rate charge-discharge capability under less SOC scope;
To the operating mode of electrical network peak load shifting, select the charge-discharge performance of the less multiplying power under larger SOC scope; With
To stand-by power supply operating mode, select the self-discharge performance under full power state.
Preferably, described step (6) comprises and distributing the operating mode of the level and smooth operating mode of power fluctuation, electrical network peak load shifting and stand-by power supply operating mode according to described test parameter result.
Compared with the prior art, beneficial effect of the present invention is:
1, electrokinetic cell secondary is utilized propose a new screening process.
2, by the screening of novel multi-parameter, improve electrokinetic cell utilizes process consistency at secondary, thus extend the useful life of battery.
3, by the screening technique based on battery applications operating mode, the residue performance that secondary utilizes electrokinetic cell is given full play to.
4, using self-discharge of battery and thermal effect as screening parameter, taken into full account that battery utilizes the fail safe in process at secondary.
Accompanying drawing explanation
Fig. 1 is a kind of electrokinetic cell recycling method flow chart provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Step 1: test battery discharge and recharge parameter.
Electric automobile power battery is when screening, and the Capacity uniformity between primary concern battery, this capacity and comprise the capacity of constant-current phase, also comprises the capacity of constant-voltage phase.And electrokinetic cell is when secondary utilizes, in energy storage field during main application scenario.When battery applications is in energy storage operating mode, usually there will not be the situation of battery constant voltage charge, and be the energy of metering battery, instead of the capacity of battery.The capacity of battery is the integration of Current versus time, and energy is the capacity of battery and the product of voltage platform, because the voltage platform consistency of battery is deteriorated, in battery screening process, there will be battery capacity close, but the situation that energy is kept off.Be specially:
Electrokinetic cell to be measured is connected on charge-discharge test instrument, writes testing process, start test.All parameters of electrokinetic cell are recorded in test process.This method is when electrokinetic cell screens, and on the good basis of battery capacity consistency, emphasis considers the energy coincidence of electrokinetic cell in constant-current phase, and screening and the important evidence of combo when it can be used as electrokinetic cell secondary to utilize.
Step 2: test battery self discharge.
In use, potential safety hazard is largely the internal short-circuit from battery to electrokinetic cell, and for the electrokinetic cell through Long-Time Service, its potential safety hazard obviously increases.Self-discharge of battery is a parameter that can reflect internal resistance of cell short circuit problem very well, by the self discharge parameter of test battery, can get rid of the battery of internal short-circuit to a great extent.Testing process is:
Battery is charged to full power state with 1/3C electric current, under room temperature (25 DEG C), shelves 7 days, then the capacity of test battery, calculate the self-discharge rate of battery.Using the parameter that self-discharge rate is considered at first in battery screening process, for the battery that self-discharge rate is high, directly eliminate.
Step 3: test thermal effect.
After electrokinetic cell is retired from electric automobile, the internal resistance of battery obviously increases, then when carrying out discharge and recharge with same electric current, the caloric value of battery also can obviously increase, and potential safety hazard increases.Therefore, electrokinetic cell carry out secondary utilize time, the thermal effect of battery must be considered.Carry out discharge and recharge with different current versus cell, measure the temperature of battery surface difference and the caloric value of battery.Concrete testing process is:
Battery is connected with high accuracy battery tester, according to the actual capacity of battery, determine the size of current (charging and discharging currents adopts 0.3C, 0.5C, 1.0C, 1.5C, 2.0C successively) adopted in test process, write testing process, the temperature probe of moisture recorder is evenly arranged in battery surface, the certainty of measurement of moisture recorder is not less than 0.5 DEG C, and battery surface at least arranges the point for measuring temperature of more than 5.Start high accuracy battery tester and moisture recorder simultaneously, the variations in temperature of battery surface diverse location in record test process, investigate different charging and discharging currents to the impact of battery-heating, on this basis, grasp the heating rule of different changeable internal damp bvattery, propose the use electric current that different changeable internal damp bvattery is recommended.
Step 4: test battery impedance.
Traditional electrokinetic cell is when screening, mainly consider the parameters such as the capacity of battery, internal resistance, self discharge, voltage platform, and for the electrokinetic cell that secondary utilizes, it is larger that inconsistency between battery becomes, discreteness is stronger, want screening and the combo of carrying out battery more accurately, more parameter need be considered.This method on the basis of traditional power battery screening parameter, the AC impedance of test battery, testing process is:
First use high accuracy internal resistance instrument test battery to determine frequency internal resistance under 1000Hz, then battery is connected on electrochemical workstation, carries out the test of AC impedance.The optimum configurations of AC impedance: scanning initial frequency is not less than 10kHz, scanning stops frequency not higher than 0.01Hz, and voltage amplitude is 5mV.Test terminated, and according to different battery systems, selected suitable analog circuit, carried out the parsing of impedance spectrogram, and the screening foundation when parameter of having resolved is utilized as electrokinetic cell secondary.
Step 5: operating mode is screened.
According to the requirement of different operating mode to battery performance, select different screening techniques, the battery performance index paid close attention in screening process is also different.
A, for the level and smooth operating mode of power fluctuation, pay close attention to the high-rate charge-discharge capability of battery under less SOC scope;
B, operating mode for electrical network peak load shifting, pay close attention to the charge-discharge performance of the less multiplying power of battery under larger SOC scope;
C, for stand-by power supply operating mode, pay close attention to the self-discharge performance of battery under full power state.
Step 6: operating mode is distributed.
The main occasion that electrokinetic cell may carry out echelon utilization comprises peak load shifting and the stand-by power supply of level and smooth, the electrical network of renewable energy power generation power fluctuation.
A, level and smooth for renewable energy power generation power fluctuation, then need energy-storage battery random carry out charging and discharging, charge-discharge magnification is large, and frequency of usage is high, but SOC limits is relatively little;
B, application for electrical network peak load shifting, the frequency of usage of energy-storage battery is relatively less and compare rule, use multiplying power also to reduce to some extent, but the discharge and recharge time is general longer, and SOC limits is larger;
C, application for stand-by power supply, the frequency of usage of usual energy-storage battery, use multiplying power and SOC limit value all very little.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (1)
1. an electrokinetic cell recycling method, is characterized in that, described method comprises:
(1) test battery discharge and recharge parameter;
(2) test battery self discharge;
(3) thermal effect is tested;
(4) test battery impedance;
(5) operating mode screening; With
(6) operating mode is distributed;
Described step (1) described test comprises test battery capacity and energy;
Described step (1) test comprises writes testing process, test battery discharge and recharge, record battery parameter;
Described step (2) comprises the self discharge parameter of test battery, for getting rid of the battery of internal short-circuit;
The test of described step (3) comprises measures battery temperature and caloric value;
Described step (4) comprises the AC impedance of test battery, according to different battery, selects analog circuit, carries out the parsing of impedance spectrogram;
Described step (5) comprising:
The operating mode level and smooth to power fluctuation, selects the high-rate charge-discharge capability under less SOC scope;
To the operating mode of electrical network peak load shifting, select the charge-discharge performance of the less multiplying power under larger SOC scope; With
To stand-by power supply operating mode, select the self-discharge performance under full power state;
Described step (6) comprises distributes the operating mode of the level and smooth operating mode of power fluctuation, electrical network peak load shifting and stand-by power supply operating mode according to described test parameter result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199225.XA CN103326076B (en) | 2013-05-24 | 2013-05-24 | A kind of electrokinetic cell recycling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199225.XA CN103326076B (en) | 2013-05-24 | 2013-05-24 | A kind of electrokinetic cell recycling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103326076A CN103326076A (en) | 2013-09-25 |
| CN103326076B true CN103326076B (en) | 2015-09-23 |
Family
ID=49194700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310199225.XA Active CN103326076B (en) | 2013-05-24 | 2013-05-24 | A kind of electrokinetic cell recycling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103326076B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015093103A1 (en) * | 2013-12-20 | 2015-06-25 | 三菱電機株式会社 | Stability evaluation test device and stability evaluation test method for electric storage device |
| CN105983542B (en) * | 2015-02-13 | 2018-11-09 | 国家电网公司 | A kind of retired electric automobile power battery sorting technique |
| CN105158694B (en) * | 2015-08-12 | 2018-01-19 | 郑州宇通客车股份有限公司 | A kind of battery security appraisal procedure |
| CN105158696A (en) * | 2015-08-24 | 2015-12-16 | 中汽科技发展（苏州）有限公司 | Evaluation method for evaluating service life of battery |
| CN105375071A (en) * | 2015-12-02 | 2016-03-02 | 南通沃能新能源科技有限公司 | Lithium battery matching method |
| CN105738830B (en) * | 2016-04-14 | 2018-10-16 | 中山大学 | Lithium-ion-power cell echelon utilizes analysis method |
| CN108428924A (en) * | 2017-02-13 | 2018-08-21 | 谷涛 | A kind of internal micro-short circuit fail safe lithium ion battery |
| CN107505575B (en) * | 2017-08-10 | 2020-06-02 | 清华四川能源互联网研究院 | Rapid assessment method for retired power battery |
| CN107863569A (en) * | 2017-10-10 | 2018-03-30 | 中车工业研究院有限公司 | A kind of lithium-ion-power cell appraisal procedure and device |
| WO2021090051A1 (en) * | 2019-11-08 | 2021-05-14 | CASTELLANOS RAMELLI, Pablo | System and method for the diagnosis, classification and reuse of rechargeable batteries |
| CN114114024A (en) * | 2021-12-04 | 2022-03-01 | 国网河南省电力公司电力科学研究院 | Storage battery consistency screening device and screening method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907688A (en) * | 2010-08-02 | 2010-12-08 | 天津力神电池股份有限公司 | Method for detecting electrical property consistency of lithium ion battery |
| CN102437385A (en) * | 2011-12-12 | 2012-05-02 | 中国电力科学研究院 | Grading method for cascade utilization of power battery of electric vehicle |
| CN102755966A (en) * | 2012-07-31 | 2012-10-31 | 河南电力试验研究院 | Cascade utilization sorting evaluation method of power cell |
-
2013
- 2013-05-24 CN CN201310199225.XA patent/CN103326076B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907688A (en) * | 2010-08-02 | 2010-12-08 | 天津力神电池股份有限公司 | Method for detecting electrical property consistency of lithium ion battery |
| CN102437385A (en) * | 2011-12-12 | 2012-05-02 | 中国电力科学研究院 | Grading method for cascade utilization of power battery of electric vehicle |
| CN102755966A (en) * | 2012-07-31 | 2012-10-31 | 河南电力试验研究院 | Cascade utilization sorting evaluation method of power cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103326076A (en) | 2013-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103326076B (en) | A kind of electrokinetic cell recycling method | |
| CN102508165B (en) | Method for evaluating self-discharge consistency of lithium iron phosphate battery | |
| CN103316852B (en) | Battery selecting method | |
| CN103257323A (en) | Method for estimating lithium ion battery remaining available capacity | |
| CN103995232B (en) | A kind of detection method of lithium iron phosphate dynamic battery group peak value charge-discharge performance | |
| CN103337669B (en) | Reutilization method of power battery of electric automobile | |
| CN104297690A (en) | Lithium battery SOC-OCV curve determination method | |
| CN103728563A (en) | Method for measuring and calculating health status of batteries | |
| CN105738815A (en) | Method for detecting state of health of lithium ion battery online | |
| CN102645635A (en) | Device and method for testing corresponding relation between open circuit voltage (OCV) and system on chip (SOC) | |
| CN103713264A (en) | Battery management system SOC estimation precision test system and test method | |
| CN103698716A (en) | Attenuation coefficient-based method for evaluating dischargeable electric quantity of series battery pack | |
| CN104698383B (en) | A kind of internal resistance of cell measuring method and circuit of batteries management system | |
| CN104485474A (en) | Electric vehicle battery pack matching method based on coincidence indicator | |
| CN103353575A (en) | Test apparatus and test method for measuring correspondence between OCV (open circuit voltage) and SOC (state of charge) | |
| KR20150045600A (en) | Battery tester and its control method | |
| CN105738821B (en) | The accurate method for calculating battery coulombic efficiency under different temperatures | |
| CN104297576B (en) | Characteristic testing method and device applied to different aging stages of super capacitors | |
| CN203502568U (en) | Battery performance consistence testing system | |
| CN104142446A (en) | System and method for testing charging control response time of electric vehicle charger | |
| CN108152744A (en) | Self discharge of lithium iron phosphate battery screening technique | |
| CN105480101A (en) | Power distribution method and device for hybrid power supply electric automobile | |
| CN104931893A (en) | Modeling method suitable for large-scale batteries that are obviously inconsistent in parameter | |
| CN105742729A (en) | Online safety pre-warning method for lithium-ion battery | |
| CN103901353A (en) | Method for judging uniformity of all batteries of lithium ion battery pack and timing voltage measuring instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |