CN107315148A - A kind of lithium battery intelligent screening system based on chemical conversion data - Google Patents
A kind of lithium battery intelligent screening system based on chemical conversion data Download PDFInfo
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- CN107315148A CN107315148A CN201710613934.6A CN201710613934A CN107315148A CN 107315148 A CN107315148 A CN 107315148A CN 201710613934 A CN201710613934 A CN 201710613934A CN 107315148 A CN107315148 A CN 107315148A
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- lithium battery
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- chemical conversion
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- 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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/3865—Arrangements for measuring battery or accumulator variables related to manufacture, e.g. testing after manufacture
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of lithium battery intelligent screening system based on chemical conversion data, including remote control unit, field control subelement, channel control unit and intelligent acquisition taxon, design and built the lithium battery intelligent screening system based on chemical conversion data, according to relation of the basic performance indices of battery in battery forming process with SEI films, lithium battery quality is assessed using multi-parameter comprehensive, reflect the quality of battery on the whole, filter out the lithium battery for meeting national standard, lithium battery can be carried out as requested drawing level classification, so as to ensure battery with two side terminals and improve classification accuracy.Lithium battery quality is assessed using multi-parameter comprehensive, reflect the quality of battery on the whole, filter out the lithium battery for meeting national standard, lithium battery can be carried out as requested drawing level classification, it is that the safe and reliable property of battery pack lays the foundation so as to ensure battery with two side terminals and improve classification accuracy.
Description
Technical field
Detection technique field is produced the present invention relates to lithium battery, a kind of specific field is the lithium battery intelligence based on chemical conversion data
Can screening system.
Background technology
Because lithium battery has high specific energy energy, it is widely used in 3C numbers, intelligent appliance, smart city, electronic
The fields such as instrument, electric automobile, wind energy conversion system solar energy storage power station, mobile communication base station, radio station, satellite launch.Actually should
In, lithium battery exists in the form of battery pack mostly, and this is accomplished by the uniformity that lithium battery keeps higher.Based on one piece of battery
Quality be just enough to determine the performance of whole battery pack, therefore the consistent cell of performance is categorized into right and wrong in a rank
Often it is necessary, ensures the security and service life of battery pack with this.
After the completion of formation of Li-ion batteries, due to different, extraneous factor the shadows that inside battery chemically reacts in production process
Ring and manufacturing process in the factor such as uncertain, even with a batch of battery, can result in the performance difference of lithium battery.
So filter out the certified products for meeting national standard, and grade classification is carried out to it be particularly important, it is necessary to design
Battery screening system.
The content of the invention
It is an object of the invention to provide a kind of lithium battery intelligent screening system based on chemical conversion data, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides following technical scheme：A kind of lithium battery intelligent sieve based on chemical conversion data
System, including remote control unit, field control subelement, channel control unit and intelligent acquisition taxon are selected, it is described remote
Process control unit includes chemical conversion data extraction module and intelligent screening module two parts, and the chemical conversion data extraction module includes lithium
Battery formation data processing module, lithium battery characterisitic parameter extraction module and SEI film properties parameter modules, the intelligent screening mould
Block includes SVM classifier and grade classification module, and the field control subelement includes DCS acquisition controllers and DCS screening controls
Device processed, the channel control unit includes PLC acquisition controllers and PLC screening controllers, the intelligent acquisition taxon bag
Intelligent transducer and intelligent sorter are included, the formation of Li-ion batteries data processing module connects the lithium electricity by electric conductor respectively
Pond characterisitic parameter extraction module and the DCS acquisition controllers, the lithium battery characterisitic parameter extraction module by electric conductor according to
Secondary connection SEI film properties parameter module, the SVM classifier, the grade classification module, DCS screening controllers, described
PLC screens controller and the intelligent sorter, and the DCS acquisition controllers are sequentially connected the PLC by electric conductor and gathered
Controller and the intelligent transducer.
It is preferred that, in the system signal be transmitted as directly be transmitted by data signal.
It is preferred that, the intelligent transducer contains CPU with the intelligent sorter.
It is preferred that, it is between the connection of the formation of Li-ion batteries data processing module and the DCS acquisition controllers and described
Using the connection of TCP/IP buses between the connection of grade classification module and DCS screening controllers.
It is preferred that, between the connection of the DCS acquisition controllers and the PLC acquisition controllers and the DCS screening control
Using the connection of FMS buses between the connection of device processed and PLC screening controllers.
It is preferred that, between the connection of the PLC acquisition controllers and the intelligent transducer and the PLC screening controller
Connected between connection with the intelligent sorter using PROFIBUS buses.
Compared with prior art, the beneficial effects of the invention are as follows：The invention designs and built the lithium based on chemical conversion data
Battery intelligent screening system, according to relation of the basic performance indices of battery in battery forming process with SEI films, utilizes many ginsengs
Number synthesis assesses lithium battery quality, and the quality of battery is reflected on the whole, the lithium battery for meeting national standard is filtered out, can
Lithium battery is carried out as requested to draw level classification, so as to ensure battery with two side terminals and improve classification accuracy.Utilize many ginsengs
Number synthesis assesses lithium battery quality, and the quality of battery is reflected on the whole, the lithium battery for meeting national standard is filtered out, can
Lithium battery is carried out as requested to draw level classification, is battery pack so as to ensure battery with two side terminals and improve classification accuracy
Safe and reliable property lay the foundation.
Brief description of the drawings
Fig. 1 is system block diagram of the invention；
Fig. 2 is SEI films and its basic performance indices relation model figure after formation of Li-ion batteries of the present invention.
In figure：1- remote control units, 11- chemical conversion data extraction module, 111- formation of Li-ion batteries data processing module,
112- lithium battery characterisitic parameters extraction module, 113-SEI film properties parameter module, 12- intelligent screenings module, 121-SVM classification
Device, 122- grade classifications module, 2- field controls subelement, 21-DCS acquisition controllers, 22-DCS screenings controller, 3- passages
Control unit, 31-PLC acquisition controllers, 32-PLC screening controller, 4- intelligent acquisitions taxon, 41- intelligent transducers,
42- intelligence sorters.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme：A kind of lithium battery intelligent based on chemical conversion data screens system
System, including remote control unit 1, field control subelement 2, channel control unit 3 and intelligent acquisition taxon 4, long-range control
Unit processed is the core of whole screening system, the normal operation of whole system is controlled, in the whole chemical conversion of management and screening process
Substantial amounts of control command and data monitoring etc., while it is responsible for the emergent management of abnormal conditions, the remote control unit includes
Data extraction module 11 and the two parts of intelligent screening module 12 are melted into, the chemical conversion data extraction module 11 includes formation of Li-ion batteries
Data processing module 111, lithium battery characterisitic parameter extraction module 112 and SEI film properties parameter module 113, extract SEI film properties
Parameter, can comprehensively reflect lithium battery integrated performance so that separation results are more accurate, and the intelligent screening module 12 is wrapped
SVM classifier 121 and grade classification module 122 are included, the field control subelement 2 includes DCS acquisition controllers 21 and DCS is sieved
Controller 22 is selected, the channel control unit 3 includes PLC acquisition controllers 31 and PLC screening controllers 32, the intelligent acquisition
Taxon 4 includes intelligent transducer 41 and intelligent sorter 42, and the formation of Li-ion batteries data processing module passes through electric conductor
The lithium battery characterisitic parameter extraction module and the DCS acquisition controllers are connected respectively, and the lithium battery characterisitic parameter is extracted
Module is sequentially connected SEI film properties parameter module by electric conductor, the SVM classifier, the grade classification module, described
DCS screenings controller, the PLC screening controllers and intelligent sorter, the DCS acquisition controllers by electric conductor according to
The secondary connection PLC acquisition controllers and the intelligent transducer, the system pass through property of the intelligent transducer to formation of Li-ion batteries
Can parameter carry out data acquisition, data are handled by being melted into data extraction module and extract SEI film properties parameters, transmission
Intelligent screening module is given, finally lithium battery is classified according to national standard using intelligent sub-sieve device；
Referring to Fig. 2, in the whole formation of Li-ion batteries stage, loss irreversible capacity occurs in the forming processes of SEI films, and this shows
As.If first charge-discharge efficiency is high, it is less that side shows that lithium battery is consumed in charging process, and lithium battery capacity also can be higher,
Therefore first charge-discharge efficiency is a directly embodiment of SEI films quality.Due to the voltage change ratio at the beginning of lithium ion discharge and recharge
The difference of lithium battery interior proton diffusion velocity and reflection speed is reflected, lithium battery chemical stability is reflected, and it is excellent
One important embodiment of SEI films is exactly to have good chemical stability, so the rate of change of the initial voltage of discharge and recharge is also SEI
One of film quality directly embodies.Due to the influence of battery ohmic internal resistance, voltage is had within a fast-changing process, institute
The change to voltage is hindered to have a great impact.The charging capacity and discharge capacity of lithium battery reflect the polarization concentration of battery pole plates
With protolysis ability, constant voltage/constant current Capacity Ratio has substantially reacted the speed of lithium ion diffusion.Charging interval and discharge time
Reflect polarization and the diffusion velocity of lithium battery interior lithium ion.These parameters all influence the quality of SEI film properties indirectly, therefore
The performance of battery after chemical conversion can be evaluated on the whole with the performance of SEI films.
Specifically, in the system signal be transmitted as directly be transmitted by data signal.
Specifically, the intelligent transducer contains CPU with the intelligent sorter, can carry out A-D to measurement parameter
Conversion, D-A conversion and the adjustment of small range.
Specifically, between the connection of the formation of Li-ion batteries data processing module and the DCS acquisition controllers and institute
Connected between the connection for stating grade classification module and DCS screening controllers using TCP/IP buses.
Specifically, between the connection of the DCS acquisition controllers and the PLC acquisition controllers and the DCS screening
Using the connection of FMS buses between the connection of controller and PLC screening controllers.
Specifically, between the connection of the PLC acquisition controllers and the intelligent transducer and the PLC screening control
Connected between the connection of device and the intelligent sorter using PROFIBUS buses.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of lithium battery intelligent screening system based on chemical conversion data, including remote control unit（1）, field control subelement
（2）, channel control unit（3）With intelligent acquisition taxon（4）, it is characterised in that：The remote control unit（1）Including changing
Into data extraction module（11）With intelligent screening module（12）Two parts, the chemical conversion data extraction module（11）Including lithium battery
It is melted into data processing module（111）, lithium battery characterisitic parameter extraction module（112）With SEI film properties parameter modules（113）, institute
State intelligent screening module（12）Including SVM classifier（121）With grade classification module（122）, the field control subelement（2）
Including DCS acquisition controllers（21）Controller is screened with DCS（22）, the channel control unit（3）Including PLC acquisition controllers
（31）Controller is screened with PLC（32）, the intelligent acquisition taxon（4）Including intelligent transducer（41）With intelligent sorter
（42）, the formation of Li-ion batteries data processing module（111）The lithium battery characterisitic parameter is connected respectively by electric conductor to extract
Module（112）With the DCS acquisition controllers（21）, the lithium battery characterisitic parameter extraction module（112）By electric conductor according to
Secondary connection SEI film properties parameter modules（113）, the SVM classifier（121）, the grade classification module（122）, the DCS
Screen controller（22）, PLC screening controller（32）With the intelligent sorter（42）, the DCS acquisition controllers
（21）The PLC acquisition controllers are sequentially connected by electric conductor（31）With the intelligent transducer（41）.
2. a kind of lithium battery intelligent screening system based on chemical conversion data according to claim 1, it is characterised in that：It is described
In system signal be transmitted as directly be transmitted by data signal.
3. a kind of lithium battery intelligent screening system based on chemical conversion data according to claim 1, it is characterised in that：It is described
Intelligent transducer（41）With the intelligent sorter（42）Contain CPU.
4. a kind of lithium battery intelligent screening system based on chemical conversion data according to claim 1, it is characterised in that：It is described
Formation of Li-ion batteries data processing module（111）With the DCS acquisition controllers（21）Connection between and the grade classification mould
Block（122）Controller is screened with the DCS（22）Connection between using TCP/IP buses connection.
5. a kind of lithium battery intelligent screening system based on chemical conversion data according to claim 1, it is characterised in that：It is described
DCS acquisition controllers（21）With the PLC acquisition controllers（31）Connection between and the DCS screening controller（22）With institute
State PLC screening controllers（32）Connection between using FMS buses connection.
6. a kind of lithium battery intelligent screening system based on chemical conversion data according to claim 1, it is characterised in that：It is described
PLC acquisition controllers（31）With the intelligent transducer（41）Connection between and the PLC screening controller（32）With it is described
Intelligent sorter（42）Connection between using PROFIBUS buses connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710613934.6A CN107315148A (en) | 2017-07-25 | 2017-07-25 | A kind of lithium battery intelligent screening system based on chemical conversion data |
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| CN201710613934.6A CN107315148A (en) | 2017-07-25 | 2017-07-25 | A kind of lithium battery intelligent screening system based on chemical conversion data |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143085A (en) * | 2018-07-18 | 2019-01-04 | 中国电力科学研究院有限公司 | A kind of method and system carrying out early warning to lithium ion battery based on intelligent algorithm |
| CN110412480A (en) * | 2019-07-10 | 2019-11-05 | Oppo广东移动通信有限公司 | Battery screening technique, device and computer storage medium and test macro |
-
2017
- 2017-07-25 CN CN201710613934.6A patent/CN107315148A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143085A (en) * | 2018-07-18 | 2019-01-04 | 中国电力科学研究院有限公司 | A kind of method and system carrying out early warning to lithium ion battery based on intelligent algorithm |
| CN109143085B (en) * | 2018-07-18 | 2022-09-27 | 中国电力科学研究院有限公司 | Method and system for early warning of lithium ion battery based on artificial intelligence algorithm |
| CN110412480A (en) * | 2019-07-10 | 2019-11-05 | Oppo广东移动通信有限公司 | Battery screening technique, device and computer storage medium and test macro |
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