CN105336974A - Lithium ion secondary battery matching method - Google Patents
Lithium ion secondary battery matching method Download PDFInfo
- Publication number
- CN105336974A CN105336974A CN201510727661.9A CN201510727661A CN105336974A CN 105336974 A CN105336974 A CN 105336974A CN 201510727661 A CN201510727661 A CN 201510727661A CN 105336974 A CN105336974 A CN 105336974A
- Authority
- CN
- China
- Prior art keywords
- rechargeable battery
- lithium rechargeable
- monomer lithium
- monomer
- carried out
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to a lithium ion secondary battery matching method. The method comprises the steps of conducting capacity grading on monomer lithium ion secondary batteries, charging the monomer lithium ion secondary batteries to upper limited voltage, vibrating the monomer lithium ion secondary batteries for a while with preset frequency, conducting secondary aging on the monomer lithium ion secondary batteries, and matching the monomer lithium ion secondary batteries meeting a preset rule. Battery matching is conducted with the matching method integrating full-charge high-voltage with high-temperature aging, monomer battery consistence is achieved, and the overall performance of a battery pack is improved.
Description
Technical field
The present invention relates to battery matching technique field, particularly relate to a kind of method for group matching of lithium rechargeable battery.
Background technology
Along with secondary cell uses the progressively embodiment of advantage, the range of application of secondary cell is more and more wider.At present, for electric vehicle, electric tool, the power supply of power is provided to be mostly assembled battery in the devices such as portable power source, as power lithium-ion rechargeable battery, these power supplys are made up of dozens of cell at least, form by hundreds of at most, therefore each cell capacity in assembled battery is needed, internal resistance, the parameters such as self discharge reach unanimity the capacity of guarantee assembled battery and useful life, if each cell performance in battery pack is inconsistent, make power battery pack when the fields such as electric automobile use, performance index often do not reach cell previous level, shorten several times even tens times useful life, have a strong impact on application.
Summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide a kind of method for group matching improving the lithium rechargeable battery of consistency of battery pack.
For achieving the above object, the present invention adopts following technical scheme:
A method for group matching for lithium rechargeable battery, comprises the steps:
Monomer lithium rechargeable battery is carried out partial volume;
Monomer lithium rechargeable battery is carried out charging to upper voltage limit;
With predeterminated frequency, vibrated a period of time to monomer lithium rechargeable battery;
Monomer lithium rechargeable battery is carried out secondary burin-in process;
The monomer lithium rechargeable battery meeting preset rules is carried out combo.
Preferably, the upper voltage limit of described " being carried out charging to upper voltage limit by monomer lithium rechargeable battery " step is 4.2V.
Preferably, the predeterminated frequency of described " vibrating a period of time with predeterminated frequency to monomer lithium rechargeable battery " step is 200HZ.
Preferably, a period of time of described " vibrating a period of time with predeterminated frequency to monomer lithium rechargeable battery " step is 15min.
Preferably, described " monomer lithium rechargeable battery being carried out secondary aging " specifically comprises:
Aging 60 hours are carried out under monomer lithium rechargeable battery is placed in 45 degrees Celsius;
Aging 48 hours are carried out under monomer lithium rechargeable battery being placed in normal temperature.
Preferably, described preset rules comprises more than one in the quantity of monomer lithium rechargeable battery, voltage preset range, internal resistance preset range, self discharge decreasing ratio.
Compared to existing technology, beneficial effect of the present invention is:
The method for group matching that the present invention adopts full high voltage to be combined with high temperature ageing carries out combo to battery, provides cell consistency, promotes battery pack overall performance.
Accompanying drawing explanation
Fig. 1 is the workflow diagram of the method for group matching of a kind of lithium rechargeable battery of the present invention.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further:
Participate in Fig. 1, the invention provides a kind of method for group matching of lithium rechargeable battery, it is as follows that it comprises step:
Step S1: monomer lithium rechargeable battery is carried out partial volume;
Step S2: monomer lithium rechargeable battery is carried out charging to upper voltage limit in the mode of constant current constant voltage; Upper voltage limit is preferably battery nominal upper limit voltage 4.2V; 4.2V is full power state, and battery embodies more obvious relative to the battery capacity under battery half electricity condition under full power state to voltage, and it is aging that the present embodiment selects full power state to carry out high voltage;
Step S3: transport simulation vibration machine is transported to monomer lithium rechargeable battery and vibrates a period of time with predeterminated frequency, thus can filter out inner because of welding sequence rosin joint in production process, operate the reason such as lack of standardization and cause the structural unstable lithium rechargeable battery of inside battery, usual this internal resistance of cell voltage fluctuation is comparatively large, lacks the measuring accuracy that this step can affect battery sorting; Predeterminated frequency is preferably 200HZ, and a period of time is preferably 15min;
Step S4: monomer lithium rechargeable battery is carried out secondary burin-in process, afterwards can also secondary is aging after lithium rechargeable battery carry out manual cleaning, and carry out the process of bag dielectric film; It is carry out aging 60 hours under first lithium rechargeable battery being placed in the condition of high temperature that lithium rechargeable battery is carried out secondary aging by what is called, and carry out aging 48 hours under afterwards lithium rechargeable battery being placed in normal temperature state, the high temperature of the present embodiment refers to 45 degrees Celsius;
Step S5: the monomer lithium rechargeable battery meeting preset rules is carried out combo.In this step, preset rules comprise in the quantity of monomer lithium rechargeable battery, voltage preset range, internal resistance preset range, self discharge decreasing ratio more than one.Judge whether the voltage of monomer lithium rechargeable battery, internal resistance, self discharge meet preset range, can internal resistance voltage tester be adopted to carry out standard testing monomer lithium rechargeable battery, obtain the voltage of monomer lithium rechargeable battery, internal resistance and self discharge decreasing ratio parameter, voltage, internal resistance, self discharge decreasing ratio are all met in preset range, carries out matched packet.
The matching status of cell when full power state Imitating battery pack is full of electricity, cell voltage, internal resistance, self discharge decreasing ratio parameter are screened, can battery consistency be provided, reduce battery pack in charging process, occur that cell super-charge super-discharge phenomenon causes cell integrated hydraulic performance decline and occurs the probability of security incident.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection range of the claims in the present invention.
Claims (6)
1. a method for group matching for lithium rechargeable battery, is characterized in that, comprises the steps:
Monomer lithium rechargeable battery is carried out partial volume;
Monomer lithium rechargeable battery is carried out charging to upper voltage limit;
With predeterminated frequency, vibrated a period of time to monomer lithium rechargeable battery;
Monomer lithium rechargeable battery is carried out secondary burin-in process;
The monomer lithium rechargeable battery meeting preset rules is carried out combo.
2. the method for group matching of lithium rechargeable battery as claimed in claim 1, it is characterized in that, the upper voltage limit of described " being carried out charging to upper voltage limit by monomer lithium rechargeable battery " step is 4.2V.
3. the method for group matching of lithium rechargeable battery as claimed in claim 1, it is characterized in that, the predeterminated frequency of described " vibrating a period of time with predeterminated frequency to monomer lithium rechargeable battery " step is 200HZ.
4. the method for group matching of lithium rechargeable battery as claimed in claim 3, it is characterized in that, a period of time of described " vibrating a period of time with predeterminated frequency to monomer lithium rechargeable battery " step is 15min.
5. the method for group matching of lithium rechargeable battery as claimed in claim 1, it is characterized in that, described " monomer lithium rechargeable battery being carried out secondary aging " specifically comprises:
Aging 60 hours are carried out under monomer lithium rechargeable battery is placed in 45 degrees Celsius;
Aging 48 hours are carried out under monomer lithium rechargeable battery being placed in normal temperature.
6. the method for group matching of lithium rechargeable battery as claimed in claim 1, is characterized in that, described preset rules comprise in the quantity of monomer lithium rechargeable battery, voltage preset range, internal resistance preset range, self discharge decreasing ratio more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727661.9A CN105336974A (en) | 2015-10-30 | 2015-10-30 | Lithium ion secondary battery matching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510727661.9A CN105336974A (en) | 2015-10-30 | 2015-10-30 | Lithium ion secondary battery matching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105336974A true CN105336974A (en) | 2016-02-17 |
Family
ID=55287372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510727661.9A Pending CN105336974A (en) | 2015-10-30 | 2015-10-30 | Lithium ion secondary battery matching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105336974A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356554A (en) * | 2016-11-01 | 2017-01-25 | 深圳市鹏诚新能源科技有限公司 | Battery grouping method and device |
| CN107127166A (en) * | 2017-05-22 | 2017-09-05 | 广东亿纬赛恩斯新能源系统有限公司 | A kind of method for separating and lithium battery of lithium battery uniformity |
| CN111167748A (en) * | 2019-11-29 | 2020-05-19 | 荆门亿纬创能锂电池有限公司 | Battery screening method |
| CN111530780A (en) * | 2020-05-06 | 2020-08-14 | 无锡市明杨新能源有限公司 | Lithium ion battery matching method |
| CN113857079A (en) * | 2021-08-26 | 2021-12-31 | 合肥国轩高科动力能源有限公司 | Method for testing battery pack after screening of inventory risk batteries |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003045486A (en) * | 2001-07-31 | 2003-02-14 | Sony Corp | Manufacturing method for non-aqueous electrolyte battery |
| CN101826634A (en) * | 2010-05-17 | 2010-09-08 | 江西省福斯特新能源有限公司 | Lithium ion battery and manufacturing method thereof |
| CN102760914A (en) * | 2012-07-20 | 2012-10-31 | 深圳市雄韬电源科技股份有限公司 | Matching method for lithium ion power batteries |
| CN103208655A (en) * | 2013-03-04 | 2013-07-17 | 八叶(厦门)新能源科技有限公司 | Grouping method for power lithium ion batteries |
| CN103296325A (en) * | 2013-06-04 | 2013-09-11 | 金能（唐海）电池制造有限公司 | Matching method of lithium-ion batteries |
-
2015
- 2015-10-30 CN CN201510727661.9A patent/CN105336974A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003045486A (en) * | 2001-07-31 | 2003-02-14 | Sony Corp | Manufacturing method for non-aqueous electrolyte battery |
| CN101826634A (en) * | 2010-05-17 | 2010-09-08 | 江西省福斯特新能源有限公司 | Lithium ion battery and manufacturing method thereof |
| CN102760914A (en) * | 2012-07-20 | 2012-10-31 | 深圳市雄韬电源科技股份有限公司 | Matching method for lithium ion power batteries |
| CN103208655A (en) * | 2013-03-04 | 2013-07-17 | 八叶(厦门)新能源科技有限公司 | Grouping method for power lithium ion batteries |
| CN103296325A (en) * | 2013-06-04 | 2013-09-11 | 金能（唐海）电池制造有限公司 | Matching method of lithium-ion batteries |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356554A (en) * | 2016-11-01 | 2017-01-25 | 深圳市鹏诚新能源科技有限公司 | Battery grouping method and device |
| CN106356554B (en) * | 2016-11-01 | 2019-04-12 | 深圳市鹏诚新能源科技有限公司 | Battery grouping method and device |
| CN107127166A (en) * | 2017-05-22 | 2017-09-05 | 广东亿纬赛恩斯新能源系统有限公司 | A kind of method for separating and lithium battery of lithium battery uniformity |
| CN107127166B (en) * | 2017-05-22 | 2019-06-25 | 广东亿纬赛恩斯新能源系统有限公司 | A kind of method for separating and lithium battery of lithium battery consistency |
| CN111167748A (en) * | 2019-11-29 | 2020-05-19 | 荆门亿纬创能锂电池有限公司 | Battery screening method |
| CN111167748B (en) * | 2019-11-29 | 2022-05-27 | 荆门亿纬创能锂电池有限公司 | Battery screening method |
| CN111530780A (en) * | 2020-05-06 | 2020-08-14 | 无锡市明杨新能源有限公司 | Lithium ion battery matching method |
| CN113857079A (en) * | 2021-08-26 | 2021-12-31 | 合肥国轩高科动力能源有限公司 | Method for testing battery pack after screening of inventory risk batteries |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103611692B (en) | Lithium iron phosphate power battery consistency matching screening method | |
| CN108246658B (en) | Method for screening consistency of lithium iron phosphate batteries | |
| Chen et al. | Sinusoidal-ripple-current charging strategy and optimal charging frequency study for Li-ion batteries | |
| CN105336974A (en) | Lithium ion secondary battery matching method | |
| CN101526587B (en) | Measuring method for state of charge of series-connected batteries | |
| CN104269574B (en) | A kind of set of cells method for separating | |
| CN105680108B (en) | A kind of screening technique of lithium ion battery | |
| CN104668207A (en) | Method for enhancing screening consistency of lithium-ion power battery | |
| CN103008261A (en) | Method for sorting degrees of self-discharging of lithium ion batteries | |
| CN103302040A (en) | Screening method for lithium-ion battery consistency | |
| CN103840225A (en) | Screening method for lithium ion battery | |
| CN104319421B (en) | lithium ion battery matching system | |
| CN109585932B (en) | Manufacturing method of symmetrical battery and symmetrical battery | |
| CN102231446B (en) | Method for controlling consistency of power battery pack | |
| CN102343334A (en) | Dynamic sorting method and system for power batteries | |
| CN103956513B (en) | A kind of method for group matching of high-capacity lithium electrokinetic cell | |
| US9519028B2 (en) | Method and system for characterizing battery cells for use in battery packs | |
| Barai et al. | A study of the effects of external pressure on the electrical performance of a lithium-ion pouch cell | |
| CN104662730B (en) | Alkaline battery operational methodology | |
| CN103515644A (en) | Production process for realization of consistency of power battery pack | |
| JP2015222195A (en) | Method of determining applicability of used secondary battery to reconstituted product, and method of reconstituting battery-pack | |
| CN106707179A (en) | Method and device for predicting capacity of battery | |
| CN105244535B (en) | A kind of method for separating of lithium rechargeable battery | |
| Wang et al. | Characteristic analysis of lithium titanate battery | |
| CN110045290A (en) | A kind of lithium-ions battery internal short-circuit latent defect lossless detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| CB02 | Change of applicant information |
Address after: Longgang District of Shenzhen City, Guangdong province 518117 Ping Street in the community sifangpu village 1 building A 101, 201, 301, building B, building D, building G Applicant after: SHENZHEN ZHUONENG NEW ENERGY CO., LTD. Address before: 518000 Shenzhen City, Longgang District, Ping and industrial zone, a phase of the first phase of the United States and the United States, Guangdong, a period of three Applicant before: Shenzhen Zhuoneng New Energy Technology Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |