CN106423919B - Retired lithium battery method for separating and its system - Google Patents
Retired lithium battery method for separating and its system Download PDFInfo
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- CN106423919B CN106423919B CN201610969816.4A CN201610969816A CN106423919B CN 106423919 B CN106423919 B CN 106423919B CN 201610969816 A CN201610969816 A CN 201610969816A CN 106423919 B CN106423919 B CN 106423919B
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- Prior art keywords
- moment
- voltage
- standing
- single battery
- level
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004364 calculation method Methods 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties
Abstract
The present invention provides a kind of retired lithium battery method for separating, include the following steps：Measure the open-circuit voltage V of single batteryocv；As open-circuit voltage VocvNot less than open-circuit voltage lower limit VlWhen, into the charging stage；Survey calculation charging time TcThe terminal voltage V of the moment single batterycr；Work as TcThe terminal voltage V of the moment single batterycrNo more than TcMoment terminal voltage upper limit Vcrh, and it is not less than TcMoment terminal voltage lower limit VcrlWhen, into the stage of standing；Measurement is from the standing voltage at standing 0 moment of stage to standing stage TsThe standing voltage change V at momentcd；As standing voltage change VcdNo more than standing voltage change upper limit VcdhWhen enter discharge regime；Survey calculation is from the voltage at 0 moment of discharge regime to discharge regime TdThe voltage change V at momentdd；COMPREHENSIVE CALCULATING scores and is classified according to appraisal result；Its effect is：Fast and effeciently retired dynamic lithium battery can be sorted, utilize for its echelon and create conditions with reasonable recycling.
Description
Technical field
The present invention relates to new energy dynamic lithium battery technical fields, and in particular to a kind of retired lithium battery method for separating and its
System.
Background technology
Lithium ion power storage battery has high-energy density, high working voltage, high safety as a kind of environmentally protective battery
The advantages that performance and long life, shows superior in terms of the new energy energy storage such as portable electronic device, electric vehicle
Foreground.With the industrialized development of electric vehicle, the yield of dynamic lithium battery also greatly improves therewith, the use of dynamic lithium battery
Service life is about 20 years, but after having used 3-5, the performance of dynamic lithium battery will decay, once battery capacity decays
To initial capacity 80% hereinafter, the course continuation mileage of electric vehicle will significantly reduce, therefore under normal conditions, to ensure automobile
Safety and performance, electric vehicle manufacturer require will be replaced when the capacity attenuation of power battery is to 70%-80%
It changes, once discarded lithium battery cannot be effectively recycled, not only results in the wasting of resources, environmental pollution is also particularly
Seriously, and retired dynamic lithium battery still has certain residual capacity and service life, still can be further in other field
It uses, such as electric bicycle, the power supply of tourist coach, general life lighting power supply, or is used for power energy storage, including can
The fields such as renewable sources of energy output power is smooth, distributed power supply from far-off regions, electric charging station energy storage, power quality are adjusted.
The outburst of dynamic lithium battery volume of production and marketing means that battery scraps peak period at hand, how power is effectively performed
The recycling of lithium battery and realization echelon utilize one of the important topic for becoming new-energy automobile development, and have been put on day
Journey.
Invention content
The application is effective to solve retired dynamic lithium battery by a kind of retired lithium battery method for separating of offer and its system
Quickly the technical issues of sorting, utilizes for its echelon and create conditions with reasonable recycling.
In order to solve the above technical problems, the application is achieved using following technical scheme：
A kind of retired lithium battery method for separating, includes the following steps：
S1：Measure the open-circuit voltage V of single batteryocv；
S2：Judge open-circuit voltage VocvWhether open-circuit voltage lower limit V is less thanl, if it is, the single battery is scrapped, it is no
Then, S3 is entered step；
S3：The single battery enters charging stage, charging current Ic, charging time Tc；
S4：Survey calculation TcThe terminal voltage V of the moment single batterycr；
S5：Judge TcThe terminal voltage V of the moment single batterycrWhether more than TcMoment terminal voltage upper limit Vcrh, or whether
Less than TcMoment terminal voltage lower limit Vcrl, if it is, the single battery is scrapped, otherwise, enter step S6；
S7：Measurement is from the standing voltage at standing 0 moment of stage to standing stage TsThe standing voltage change V at momentcd；
S8：Judge to stand voltage change VcdWhether it is more than to stand voltage change upper limit Vcdh, if it is, the single battery
It scraps, otherwise, enters step S9；
S9：Into discharge regime, discharge current size is Ic, discharge time Td, and survey calculation from discharge regime 0 when
The voltage at quarter is to discharge regime TdThe voltage change V at momentdd, enter step S10；
S10：COMPREHENSIVE CALCULATING, which scores, to be simultaneously classified according to appraisal result, wherein the scoring of the single battery is：Q=F
(Vocv,Vcr,Vcd,Vdd)=Vocv/(Vcr×Vdd×Vcd×Tc×Td)。
Further, level-one, two level, three-level are divided into step S10 and is scrapped, as Q >=L1When, the single battery
For level-one, work as L2≤Q<L1When, which is two level, works as L3≤Q<L2When, which is three-level, works as Q<L3When, it should
Single battery is scrapped, wherein L1For the level-one limit value of setting, L2For the two level limit value of setting, L3For the three-level limit value of setting.
Under normal conditions, TcIt is 3 seconds, TsIt is 5 seconds, TdIt is 3 seconds.
A kind of retired lithium battery separation system, including：The charge and discharge module being made of several charge/discharge units, one is filled
Discharge cell is a cell classification channel, and a charge/discharge unit corresponds to a single battery to be sorted；
Microprocessor for controlling entire separation system, the data of the battery information for acquiring single battery to be sorted
Collecting unit provides the power supply unit of power supply, and number for storing data for whole system for the communication unit of communication
According to storage unit.
Further, the battery information includes battery capacity and battery terminal voltage.
Compared with prior art, technical solution provided by the present application, the technique effect or advantage having are：Can quickly have
Effect ground sorts retired dynamic lithium battery, is utilized for its echelon and creates condition with reasonable recycling.
Description of the drawings
Fig. 1 is the method for separating flow chart of the present invention；
Fig. 2 is the structure diagram of the separation system of the present invention.
Specific implementation mode
A kind of retired lithium battery method for separating provided by the present invention and its system, it is effectively fast to solve retired dynamic lithium battery
The technical issues of speed sorting, utilizes for its echelon and creates conditions with reasonable recycling.
In order to keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and
Specific embodiment is described in detail, and description here does not mean that all masters corresponding to the specific example stated in embodiment
Topic all refers in the claims.
Embodiment
A kind of retired lithium battery method for separating, as shown in Figure 1, including the following steps：
S1：Measure the open-circuit voltage V of single batteryocv；
S2：Judge open-circuit voltage VocvWhether open-circuit voltage lower limit V is less thanl, if it is, the single battery is scrapped, it is no
Then, S3 is entered step；
S3：The single battery enters charging stage, charging current Ic, charging time Tc；
S4：Survey calculation TcThe terminal voltage V of the moment single batterycr；
S5：Judge TcThe terminal voltage V of the moment single batterycrWhether more than TcMoment terminal voltage upper limit Vcrh, or whether
Less than TcMoment terminal voltage lower limit Vcrl, if it is, the single battery is scrapped, otherwise, enter step S6；
S6：Into the stage of standing, time of repose Ts；
S7：Measurement is from the standing voltage at standing 0 moment of stage to standing stage TsThe standing voltage change V at momentcd；
S8：Judge to stand voltage change VcdWhether it is more than to stand voltage change upper limit Vcdh, if it is, the single battery
It scraps, otherwise, enters step S9；
S9：Into discharge regime, discharge current size is Ic, discharge time Td, and survey calculation from discharge regime 0 when
The voltage at quarter is to discharge regime TdThe voltage change V at momentdd, enter step S10；
S10：COMPREHENSIVE CALCULATING, which scores, to be simultaneously classified according to appraisal result, wherein the scoring of the single battery is：Q=F
(Vocv,Vcr,Vcd,Vdd)=Vocv/(Vcr×Vdd×Vcd×Tc×Td)。
According to Q values, it is divided into level-one, two level, three-level and scraps, as Q >=L1When, which is level-one (level-one list
The active volume of body battery>90%), work as L2≤Q<L1When, which is the two level (active volume of secondary monomers battery>
70%), work as L3≤Q<L2When, which is the three-level (active volume of three-level single battery>50%), work as Q<L3When, the list
Body battery is scrapped, wherein L1For the level-one limit value of setting, L2For the two level limit value of setting, L3For the three-level limit value of setting.
A kind of retired lithium battery separation system includes as shown in Figure 2：The charge and discharge mould being made of several charge/discharge units
Group, a charge/discharge unit are a cell classification channel, and a charge/discharge unit corresponds to a single battery to be sorted, whole
A separation system can be formed by multiple cell classification combination of channels, and the number in channel of classifying can freely increase；
Microprocessor for controlling entire separation system, the data of the battery information for acquiring single battery to be sorted
Collecting unit provides the power supply unit of power supply, and number for storing data for whole system for the communication unit of communication
According to storage unit.
Further, the battery information includes battery capacity and battery terminal voltage.
In above-described embodiment of the application, by providing a kind of retired lithium battery method for separating, include the following steps：It measures
The open-circuit voltage V of single batteryocv；As open-circuit voltage VocvNot less than open-circuit voltage lower limit VlWhen, into the charging stage；Meter
Calculate charging time TcThe terminal voltage V of the moment single batterycr；Work as TcThe terminal voltage V of the moment single batterycrNo more than TcMoment
Terminal voltage upper limit Vcrh, and it is not less than TcMoment terminal voltage lower limit VcrlWhen, into the stage of standing；It measures from standing 0 moment of stage
Standing voltage to standing stage TsThe standing voltage change V at momentcd；As standing voltage change VcdNo more than standing voltage change
Upper limit VcdhWhen enter discharge regime；Survey calculation is from the voltage at 0 moment of discharge regime to discharge regime TdThe voltage change at moment
Vdd；COMPREHENSIVE CALCULATING scores and is classified according to appraisal result.The present invention can fast and effeciently carry out retired dynamic lithium battery
Sorting is utilized for its echelon and is created conditions with reasonable recycling, and the present invention also provides one kind in addition is sorted based on retired lithium battery
The separation system of method.
It should be pointed out that it is limitation of the present invention that above description, which is not, the present invention is also not limited to the example above,
What those skilled in the art were made in the essential scope of the present invention changes, is modified, adds or replaces, and also answers
It belongs to the scope of protection of the present invention.
Claims (3)
1. a kind of retired lithium battery method for separating, which is characterized in that include the following steps：
S1：Measure the open-circuit voltage V of single batteryocv；
S2：Judge open-circuit voltage VocvWhether open-circuit voltage lower limit V is less thanl, if it is, the single battery is scrapped, otherwise, enter
Step S3；
S3：The single battery enters charging stage, charging current Ic, charging time Tc；
S4：Survey calculation TcThe terminal voltage V of the moment single batterycr；
S5：Judge TcThe terminal voltage V of the moment single batterycrWhether more than TcMoment terminal voltage upper limit Vcrh, or whether be less than
TcMoment terminal voltage lower limit Vcrl, if it is, the single battery is scrapped, otherwise, enter step S6；
S6：Into the stage of standing, time of repose Ts；
S7：Measurement is from the standing voltage at standing 0 moment of stage to standing stage TsThe standing voltage change V at momentcd；
S8：Judge to stand voltage change VcdWhether it is more than to stand voltage change upper limit Vcdh, if it is, the single battery is scrapped,
Otherwise, S9 is entered step；
S9：Into discharge regime, discharge current size is Ic, discharge time Td, and survey calculation is from 0 moment of discharge regime
Voltage is to discharge regime TdThe voltage change V at momentdd, enter step S10；
S10：COMPREHENSIVE CALCULATING, which scores, to be simultaneously classified according to appraisal result, wherein the scoring of the single battery is：Q=F (Vocv,
Vcr,Vcd,Vdd)=Vocv/(Vcr×Vdd×Vcd×Tc×Td)。
2. retired lithium battery method for separating according to claim 1, which is characterized in that be divided into step S10 level-one,
It two level, three-level and scraps, as Q >=L1When, which is level-one, works as L2≤ Q ＜ L1When, which is two level, when
L3≤ Q ＜ L2When, which is three-level, as Q ＜ L3When, which scraps, wherein L1For the level-one limit value of setting,
L2For the two level limit value of setting, L3For the three-level limit value of setting.
3. retired lithium battery method for separating according to claim 1, which is characterized in that TcIt is 3 seconds, TsIt is 5 seconds, TdIt is 3
Second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969816.4A CN106423919B (en) | 2016-11-04 | 2016-11-04 | Retired lithium battery method for separating and its system |
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| CN201610969816.4A CN106423919B (en) | 2016-11-04 | 2016-11-04 | Retired lithium battery method for separating and its system |
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| CN106423919A CN106423919A (en) | 2017-02-22 |
| CN106423919B true CN106423919B (en) | 2018-10-12 |
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Families Citing this family (7)
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| CN107732337B (en) * | 2017-10-18 | 2020-12-29 | 中航锂电（洛阳）有限公司 | Sorting method for retired battery modules |
| CN108287312B (en) * | 2017-12-22 | 2021-06-04 | 广州市香港科大霍英东研究院 | Sorting method, system and device for retired batteries |
| CN111001588B (en) * | 2019-11-01 | 2022-12-09 | 安徽绿沃循环能源科技有限公司 | Battery pack echelon recycling method |
| CN113019964B (en) * | 2019-12-09 | 2022-03-25 | 杭州科工电子科技有限公司 | System is selected separately fast to retired power battery |
| CN111580005B (en) * | 2020-05-21 | 2023-02-07 | 中国电力科学研究院有限公司 | Rapid sorting method and device for gradient utilization of power batteries |
| CN111790645B (en) * | 2020-06-18 | 2022-04-15 | 杭州意能电力技术有限公司 | Method for sorting power batteries by gradient utilization |
| CN114589123A (en) * | 2022-04-25 | 2022-06-07 | 江西安驰新能源科技有限公司 | Battery consistency screening method |
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| CN200972506Y (en) * | 2006-10-30 | 2007-11-07 | 广州电器科学研究院 | Secondary battery testing controller based on build-in technology |
| KR20110107070A (en) * | 2010-03-24 | 2011-09-30 | 삼성에스디아이 주식회사 | Sorting machine of battery cell and sorting method thereof |
| CN102861726B (en) * | 2011-07-05 | 2014-07-30 | 广州丰江电池新技术股份有限公司 | Lithium secondary battery consistency screening method |
| CN202516788U (en) * | 2011-12-05 | 2012-11-07 | 哈尔滨智木科技有限公司 | Equipment for sorting dynamic consistency of batteries |
| KR101504804B1 (en) * | 2012-06-05 | 2015-03-20 | 주식회사 엘지화학 | Apparatus and method for estimating state of secondary battery considering aging |
| CN103084342B (en) * | 2013-02-08 | 2016-02-17 | 深圳市沃特玛电池有限公司 | A kind of method for separating of secondary cell |
| JP6044835B2 (en) * | 2013-03-22 | 2016-12-14 | トヨタ自動車株式会社 | Secondary battery inspection method and inspection device |
| CN104438137B (en) * | 2014-11-28 | 2017-10-20 | 熊铭 | A kind of secondary cell is High-Speed Automatic with resistance separator |
| CN105244535B (en) * | 2015-10-30 | 2018-08-21 | 深圳市卓能新能源股份有限公司 | A kind of method for separating of lithium rechargeable battery |
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Effective date of registration: 20171011 Address after: 26 No. 400000 Chongqing Kowloon Park Avenue Applicant after: CHONGQING YAXUN POWER TECHNOLOGY CO., LTD. Address before: 400035 Lin Yuan, Shapingba District, Chongqing, No. 400 Applicant before: Li Rui |
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Effective date of registration: 20191012 Address after: 400039 Kowloon Park Road, Kowloon Po, Chongqing 26 Co-patentee after: Beijing Electronic Engineering General Research Institute Patentee after: CHONGQING YAXUN POWER TECHNOLOGY CO., LTD. Address before: 26 No. 400000 Chongqing Kowloon Park Avenue Patentee before: CHONGQING YAXUN POWER TECHNOLOGY CO., LTD. |
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Inventor after: Zhou Guojun Inventor after: Li Rui Inventor after: Yu Jialing Inventor after: He Junqiang Inventor after: Liu Xiaoli Inventor before: Li Rui Inventor before: Yu Jialing Inventor before: He Junqiang Inventor before: Liu Xiaoli |
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