CN107505575A - A kind of fast evaluation method of retired electrokinetic cell - Google Patents
A kind of fast evaluation method of retired electrokinetic cell Download PDFInfo
- Publication number
- CN107505575A CN107505575A CN201710679940.1A CN201710679940A CN107505575A CN 107505575 A CN107505575 A CN 107505575A CN 201710679940 A CN201710679940 A CN 201710679940A CN 107505575 A CN107505575 A CN 107505575A
- Authority
- CN
- China
- Prior art keywords
- battery bag
- retired
- retired battery
- electrokinetic cell
- evaluation method
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
Abstract
The present invention relates to Cell Evaluation technical field, discloses a kind of fast evaluation method of retired electrokinetic cell.Including procedure below：Step 1, retired battery bag is placed on testboard, solid measure is carried out to retired battery bag first by charging/discharging apparatus；Step 2, determine again retired battery bag dump energy for 20% when power and internal resistance；Step 3, retired battery bag is fully charged, 1 time-of-week of standing；Step 4, the self-discharge rate for finally determining retired battery bag.The time of retired electrokinetic cell was tapered to 1 week or so from 12 months, the switching time tested between critical parameter is significantly simplify, drastically increases the efficiency of retired battery bag state estimation；Secondly, it greatly ensure that the accuracy of the retired battery status parameter of judge of acquisition.
Description
Technical field
The present invention relates to Cell Evaluation technical field, particularly a kind of fast evaluation method of retired electrokinetic cell.
Background technology
After battery uses a period of time, after capacity when battery is fully charged is less than the 80% of battery rated capacity, battery is just
It should be replaced.Therefore for retired battery bag, it is necessary first to determine its it is retired after actual capacity.And as battery holds
The decay of amount, compared to new battery, the internal resistance of retired battery bag typically can also become in the discharge power of the trend of increase, battery
The retention of charge of change, battery with two side terminals and battery is deteriorated.
Therefore the state estimation of retired battery bag is, it is necessary to integrated capacity, internal resistance, power, self-discharge rate, battery consistency,
Obtain a comprehensive evaluation index.And the test of the key parameter such as capacity, internal resistance, power, self-discharge rate, battery consistency,
The testing time of 1-2 months is generally required, this will hinder the extensive utilization of retired electrokinetic cell significantly.
Secondly, the existing research assessed mostly on dynamic regime is concentrated mainly on battery model and state estimation is calculated
In the research of method, substantial amounts of test data is also required to early stage to verify the correctness of battery model and state estimation algorithm.It is and right
In retired electrokinetic cell, applying working condition before its is retired varies, so being difficult to adopt unified battery model and state is estimated
Algorithm is calculated to assess the state of retired electrokinetic cell.
The content of the invention
The technical problems to be solved by the invention are：For above-mentioned problem, the present invention judges power by extracting
Battery crucial evaluation factor, and the design construction method of testing of a set of simple and fast, it is intended to reach can rapid evaluation it is retired
A kind of purpose of electrokinetic cell, there is provided fast evaluation method of retired electrokinetic cell.
The technical solution adopted by the present invention is as follows：A kind of fast evaluation method of retired electrokinetic cell, including procedure below：
Step 1, retired battery bag is placed on testboard, solid measure is carried out to retired battery bag first by charging/discharging apparatus；
Step 2, determine again retired battery bag dump energy for 20% when power and internal resistance；It is step 3, retired battery bag is fully charged, it is quiet
Put 1 time-of-week；Step 4, the self-discharge rate for finally determining retired battery bag.
Further, the detailed process of the step 1 includes：Step 11, retired battery bag reach the workbench of testboard
1, retired battery bag is discharged to the cut-off condition of battery bag with 1C electric current, stands half an hour；Step 12, the electric current with 0.5C
Retired battery bag is charged, stands half an hour；Step 13, with 1C electric current retired battery bag is discharged, retired electricity
It is retired battery bag actual capacity that released capacity is wrapped in pond, obtains the retired battery bag actual capacity.
Further, the fast evaluation method of the retired electrokinetic cell also includes procedure below：Step 1 completion
Afterwards, detected using retired battery bag galvanic cell management system and obtain all monomer voltage situations of retired battery bag.
Further, the detailed process of the step 2 includes：Retired battery bag reaches the work on testboard from workbench 1
Make platform 2, by retired battery bag using 1C electric current charge or discharge to dump energy as 20%, stand half an hour；Then with 1C electricity
Stream carries out power and inner walkway to retired battery bag, obtains power when retired battery bag dump energy is 20% and internal resistance, and
Record.
Further, in the step 3, by retired battery bag it is fully charged after, retired battery bag is from workbench 2 to testboard
On standing storage area, then stand 1 time-of-week.
Further, the detailed process of the step 4 includes：Retired battery bag reaches the work of testboard from storage area is stood
Make platform 3, retired battery bag is discharged to blanking voltage with 1C electric current, the capacity and retired battery that now retired battery bag is released
The ratio of bag actual capacity, the self-discharge rate of as retired battery bag.
Compared with prior art, having the beneficial effect that using above-mentioned technical proposal：
1st, by establishing a set of test streamline, actual capacity, voltage uniformity, power and interior are tested respectively on streamline
Resistance, self-discharge rate, the time of usual retired electrokinetic cell was tapered to 1 week or so from 1-2 months, significantly simplify and comment
Sentence the switching time tested between parameter, drastically increase the efficiency of retired battery bag state estimation.
2nd, the key parameter of the invention by extracting retired electrokinetic cell, formulates the method for testing of simple and fast, directly surveys
The crucial test index of each retired battery bag is obtained, greatly ensure that acquisition judges the accurate of retired battery status parameter
Property.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the fast evaluation method of the retired electrokinetic cell of the present invention.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
As shown in figure 1, for the measure setup streamline testboard of retired battery bag, surveyed respectively on different workbench
Measure actual capacity, voltage uniformity, power and internal resistance, self-discharge rate parameter is assessed.Set gradually workbench 1, work
Platform 2, stand storage area, workbench 3.Workbench 1 configures a set of power supply and load equipment, it is therefore an objective to completes battery by discharge and recharge
Volume test；What is configured at workbench 2 is power and inner walkway equipment, it is therefore an objective to is completed in battery in low dump energy
（SOC）In the case of discharge capability test；A single load equipment is configured at workbench 3, it is therefore an objective to complete battery quiet
Put the self discharge situation after one week.
1. obtain retired battery bag actual capacity
Retired battery bag reaches the workbench 1 of testboard, and retired battery bag is discharged to the cut-off bar of battery bag with 1C electric current
Part, stand half an hour；Retired battery bag is charged with 0.5C electric current, stands half an hour；With 1C electric current to retired electricity
Chi Bao is discharged, and the capacity that retired battery bag is released is retired battery bag actual capacity, and shown actual capacity is also to move back
Residual capacity when labour battery bag is retired, obtain the retired battery bag actual capacity.Retired battery bag galvanic cell pipe is used simultaneously
Reason system detectio simultaneously obtains all monomer voltage situations of retired battery bag.
2. the retired battery bag power of measure and internal resistance
To the power measurement of retired battery bag, low dump energy only need to be carried out（SOC）Under power, the present embodiment select SOC for
20% situation, retired battery bag reach the workbench 2 on testboard from workbench 1, and retired battery bag is charged with 1C electric current
Or it is 20% to be discharged to dump energy, stands half an hour；Then power is carried out to retired battery bag with 1C electric current and internal resistance is surveyed
Examination, test process are referred to power and inner walkway operating mode in national standard GB/T 31467.2-2015, obtain retired battery bag
Power and internal resistance when dump energy is 20%, and record.
3. having surveyed power and internal resistance, retired battery bag is fully charged, and then retired battery bag, which reaches, stands storage area, stands
1 time-of-week.
The storage area that stands includes the battery carrier for placing retired battery bag, and the battery bag tested from workbench 2 is with biography
Send band to enter and stand storage area, and be placed in an orderly manner above battery carrier successively.When the battery bag on workbench 3 finish test from
After opening workbench 3, and reach there is provided after time of repose, the standing storage area battery carrier will carry out self discharge in an orderly manner successively
The battery bag of test serves conveyer belt.Therefore the standing storage area can ensure that retired battery bag swimmingly completes every test.
4. the self-discharge rate of the retired battery bag of measure
Retired battery bag reaches the workbench 3 of testboard from storage area is stood, and is discharged to retired battery bag with 1C electric current and cuts
Only voltage, the ratio of capacity and retired battery bag actual capacity that now retired battery bag is released, as retired battery bag from
Discharge rate.
The invention is not limited in foregoing embodiment.The present invention, which expands to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.If this
Art personnel, it is altered or modified in the unsubstantiality that the spirit for not departing from the present invention is done, should all belongs to power of the present invention
The claimed scope of profit.
Claims (6)
1. a kind of fast evaluation method of retired electrokinetic cell, it is characterised in that including procedure below：Step 1, by retired battery
Bag is placed on testboard, and solid measure is carried out to retired battery bag first by charging/discharging apparatus；Step 2, determine again it is retired
Power and internal resistance when battery bag dump energy is 20%；Step 3, retired battery bag is fully charged, 1 time-of-week of standing；Step 4,
Finally determine the self-discharge rate of retired battery bag.
2. the fast evaluation method of retired electrokinetic cell as claimed in claim 1, it is characterised in that the step 1 it is specific
Process includes：Step 11, retired battery bag reach the workbench 1 of testboard, and retired battery bag is discharged into electricity with 1C electric current
Chi Bao blanking voltage, stand half an hour；Step 12, with 0.5C electric current retired battery bag is charged, stand half an hour；
Step 13, with 1C electric current retired battery bag is discharged, the capacity that retired battery bag is released is that retired battery bag is real
Border capacity, obtain the retired battery bag actual capacity.
3. the fast evaluation method of retired electrokinetic cell as claimed in claim 2, it is characterised in that the retired electrokinetic cell
Fast evaluation method also include procedure below：After the step 1 is completed, examined using retired battery bag galvanic cell management system
Survey and obtain all monomer voltage situations of retired battery bag.
4. the fast evaluation method of retired electrokinetic cell as claimed in claim 3, it is characterised in that the step 2 it is specific
Process includes：Retired battery bag reaches the workbench 2 on testboard from workbench 1, and retired battery bag is charged with 1C electric current
Or it is 20% to be discharged to dump energy, stands half an hour；Then power is carried out to retired battery bag with 1C electric current and internal resistance is surveyed
Examination, power when retired battery bag dump energy is 20% and internal resistance are obtained, and recorded.
5. the fast evaluation method of retired electrokinetic cell as claimed in claim 4, it is characterised in that in the step 3, will move back
After labour battery bag is fully charged, standing storage area of the retired battery bag from workbench 2 to testboard, 1 time-of-week is then stood.
6. the fast evaluation method of retired electrokinetic cell as claimed in claim 5, it is characterised in that the step 4 it is specific
Process includes：Retired battery bag reaches the workbench 3 of testboard from storage area is stood, and retired battery bag is discharged with 1C electric current
To blanking voltage, the ratio of capacity and retired battery bag actual capacity that now retired battery bag is released, as retired battery bag
Self-discharge rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679940.1A CN107505575B (en) | 2017-08-10 | 2017-08-10 | Rapid assessment method for retired power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679940.1A CN107505575B (en) | 2017-08-10 | 2017-08-10 | Rapid assessment method for retired power battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107505575A true CN107505575A (en) | 2017-12-22 |
| CN107505575B CN107505575B (en) | 2020-06-02 |
Family
ID=60689542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679940.1A Active CN107505575B (en) | 2017-08-10 | 2017-08-10 | Rapid assessment method for retired power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107505575B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450029A (en) * | 2018-11-26 | 2019-03-08 | 暨南大学 | A kind of retired power battery energy storage method and accumulator |
| CN110687463A (en) * | 2018-07-04 | 2020-01-14 | 中国电力科学研究院有限公司 | Working condition adaptability evaluation method and device for retired power battery |
| CN111562509A (en) * | 2020-04-03 | 2020-08-21 | 中国电力科学研究院有限公司 | Method and system for determining residual life of retired power battery |
| CN117577977A (en) * | 2024-01-17 | 2024-02-20 | 深圳市杰成镍钴新能源科技有限公司 | Whole-pack recycling control method for retired battery pack |
| CN117577977B (en) * | 2024-01-17 | 2024-04-19 | 深圳市杰成镍钴新能源科技有限公司 | Whole-pack recycling control method for retired battery pack |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6850036B2 (en) * | 2003-02-26 | 2005-02-01 | Handsun Electronic Enterprise Co., Ltd. | Method for checking power status of batteries |
| CN103326076A (en) * | 2013-05-24 | 2013-09-25 | 国家电网公司 | A method for recycling a power battery |
| CN105983542A (en) * | 2015-02-13 | 2016-10-05 | 国家电网公司 | Battery classifying method of retired electric cars |
| CN106125001A (en) * | 2016-08-22 | 2016-11-16 | 上海电力学院 | The fast evaluation method of electric automobile retired battery module actual capacity |
| CN106443475A (en) * | 2016-10-21 | 2017-02-22 | 国网山东省电力公司电力科学研究院 | Retired power battery dismounting-free reuse screening method based on operation big data |
-
2017
- 2017-08-10 CN CN201710679940.1A patent/CN107505575B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6850036B2 (en) * | 2003-02-26 | 2005-02-01 | Handsun Electronic Enterprise Co., Ltd. | Method for checking power status of batteries |
| CN103326076A (en) * | 2013-05-24 | 2013-09-25 | 国家电网公司 | A method for recycling a power battery |
| CN105983542A (en) * | 2015-02-13 | 2016-10-05 | 国家电网公司 | Battery classifying method of retired electric cars |
| CN106125001A (en) * | 2016-08-22 | 2016-11-16 | 上海电力学院 | The fast evaluation method of electric automobile retired battery module actual capacity |
| CN106443475A (en) * | 2016-10-21 | 2017-02-22 | 国网山东省电力公司电力科学研究院 | Retired power battery dismounting-free reuse screening method based on operation big data |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687463A (en) * | 2018-07-04 | 2020-01-14 | 中国电力科学研究院有限公司 | Working condition adaptability evaluation method and device for retired power battery |
| CN109450029A (en) * | 2018-11-26 | 2019-03-08 | 暨南大学 | A kind of retired power battery energy storage method and accumulator |
| CN109450029B (en) * | 2018-11-26 | 2022-04-08 | 暨南大学 | Energy storage method and energy storage circuit for retired power battery |
| CN111562509A (en) * | 2020-04-03 | 2020-08-21 | 中国电力科学研究院有限公司 | Method and system for determining residual life of retired power battery |
| CN111562509B (en) * | 2020-04-03 | 2022-09-09 | 中国电力科学研究院有限公司 | Method and system for determining residual life of retired power battery |
| CN117577977A (en) * | 2024-01-17 | 2024-02-20 | 深圳市杰成镍钴新能源科技有限公司 | Whole-pack recycling control method for retired battery pack |
| CN117577977B (en) * | 2024-01-17 | 2024-04-19 | 深圳市杰成镍钴新能源科技有限公司 | Whole-pack recycling control method for retired battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107505575B (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107015156B (en) | A kind of cell health state detection method and device | |
| CN107658511B (en) | Power lithium battery combination method and dynamic lithium battery method for group matching | |
| CN109143106A (en) | A method of battery consistency is quickly detected by ac impedance measurement | |
| CN104977537B (en) | The determination method of battery SOC and the battery management system for using this method | |
| CN205898880U (en) | Parallelly connected battery branch circuit current detection device | |
| CN108306065A (en) | Lithium ion battery grouping method and lithium ion battery combo system | |
| CN105203965B (en) | A kind of energy storage battery test method | |
| CN107765184A (en) | Dynamic lithium battery DC internal resistance detection method | |
| CN105304954A (en) | Battery grouping method and battery grouping system | |
| CN107015155B (en) | A kind of measuring method and device of battery of electric vehicle SOH | |
| CN102393508A (en) | Nondestructive diagnosis of battery performance | |
| CN102944849A (en) | Rapid battery capacity detecting method for lithium ion batteries | |
| CN109507600A (en) | A kind of retired ferric phosphate lithium cell echelon utilizes appraisal procedure | |
| CN102879743B (en) | Lithium ion battery residual electric quantity real-time analysis computing method | |
| CN106696712A (en) | Power battery fault detection method, system and electric vehicle | |
| CN108732499B (en) | Method and system for detecting cycle life of lithium ion battery | |
| CN105445663B (en) | The detection method and device of cell degradation degree | |
| CN106597297A (en) | Lithium ion battery pseudo soldering detection method | |
| CN104485474A (en) | Electric vehicle battery pack matching method based on coincidence indicator | |
| CN109490790B (en) | Method and device for testing power characteristics of lithium power battery by adopting compensation pulse method | |
| CN107505575A (en) | A kind of fast evaluation method of retired electrokinetic cell | |
| CN110187287A (en) | A kind of retired lithium battery complementary energy rapid detection method | |
| CN104931893B (en) | Suitable for the significantly extensive battery pack modeling method of parameter inconsistency | |
| CN104777427A (en) | SOC online detection method suitable for lead acid batteries | |
| CN117310515A (en) | Method and system for testing direct-current internal resistance of lithium ion battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |