CN102125907A - On-line system and method for controlling coating of electrode plates of lithium battery - Google Patents
On-line system and method for controlling coating of electrode plates of lithium battery Download PDFInfo
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- CN102125907A CN102125907A CN2011100312917A CN201110031291A CN102125907A CN 102125907 A CN102125907 A CN 102125907A CN 2011100312917 A CN2011100312917 A CN 2011100312917A CN 201110031291 A CN201110031291 A CN 201110031291A CN 102125907 A CN102125907 A CN 102125907A
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Abstract
The invention provides an on-line system for controlling coating of electrode plates of a lithium battery. The system comprises a first measuring device, a coating device, a drying device, a second measuring device and a procedure control device, wherein, the first measuring device, the coating device, the drying device and the second measuring device are sequentially connected together, and the first measuring device, the coating device and the second measuring device are respectively connected with the procedure control device; the first measuring device and the second measuring device respectively feed back the measured data about the loading capacity of a coating to the procedure control device; and the procedure control device calculates real-time loading capacity of the coating and compares the real-time loading capacity with preset loading capacity of the coating, and then issues an adjustment instruction to the coating device so as to adjust the slurry output quantity for coating. In addition, the invention further provides an on-line method for controlling coating of the electrode plates of the lithium battery by using the on-line control system.
Description
Technical field
The present invention relates to technical field of chemical power, particularly a kind of on-line control system and method for lithium battery pole slice coating.
Background technology
At battery industry, lithium battery because have energy density height, voltage height, advantage such as operating temperature range is wide, the life-span is long, the people's that have been subjected to getting more and more concern and attention.In more than ten years in the past, lithium battery once having occupied leading position in (not chargeable) and secondary (chargeable) Battery Market, is widely used in the portable electric appts such as mobile phone, notebook computer and digital camera.
Battery pole piece is the important component part of lithium battery, is the core of lithium battery.At present, produce battery pole piece and need carry out powder and starch, be coated with, roll and operation such as shearing, wherein, coating is the critical process of production battery pole piece.Electrode manufacturing process in the traditional handicraft mainly is that electrode material is mixed and made into the slurry with certain flowability, then it is coated in the surface of base material (for example metallic film), and it is molded to pass through dryer roll again.
This traditional coating technique adopts easy weigh means to come the useful load of coating is controlled usually, i.e. just carry out manual weighing after the slurry coating oven dry.For example can cut a sample piece that waits size with square template (the supposition area is S) on the pole piece after the coating, then this sample piece be weighed with assay balance, the gravimetric value that obtains is assumed to W; In like manner, cut the preceding base material of onesize coating and weigh, the gravimetric value that obtains is assumed to W
0, like this, the useful load Ln=(W-W of the sample piece that finally obtains
0)/S.This manual mode weighing all needs when taking a sample to shut down at every turn, cuts off the coating coiled strip then and takes a sample; carry out the sample piece again and manually weigh, also need at last the coating coiled strip is bonded together again, and adjust painting parameter; after waiting for that new coating medium rolls out, cut sampling again once more.So repeatedly, the continuity that is unfavorable for coating process, reduce the integrality (joint can be more) of coating coiled strip, therefore situation that can not complete monitoring coating useful load causes guaranteeing the stability of process of the useful load of coating further, makes the thin and thick skewness of coating, finally cause yield of products to descend, produce a lot of waste products, increased production cost, make product not have competitiveness.
Therefore, need a kind of method, can detect and observe the useful load situation of the single or double coating of pole piece in real time, and can finish real-time adjustment automatically, with the stability of the coating useful load of guaranteeing whole coating process to the coating useful load.
Summary of the invention
Introduced the notion of a series of reduced forms in the summary of the invention part, this will further describe in specific embodiment part.Summary of the invention part of the present invention does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to determine technical scheme required for protection.
For the useful load situation of the single or double coating that can detect and observe pole piece in real time, and can finish real-time adjustment automatically, the invention provides a kind of on-line control system and method for lithium battery pole slice coating the coating useful load.
At first, the invention provides a kind of on-line control system of lithium battery pole slice coating, described system comprises first measurement mechanism, apparatus for coating, drying unit, second measurement mechanism and presetting apparatus, described first measurement mechanism, apparatus for coating, drying unit and second measurement mechanism connect successively, and described first measurement mechanism, apparatus for coating and second measurement mechanism are connected with described presetting apparatus respectively; Described first measurement mechanism and second measurement mechanism feed back to described presetting apparatus with the data of the coating useful load that records respectively, described presetting apparatus calculates the real-time useful load of coating and compares with the default useful load of coating, issue regulating command then to described apparatus for coating, adjust the slurry output quantity of coating.
Preferably, the distance between described first measurement mechanism, apparatus for coating and second measurement mechanism keeps relative fixed.
Preferably, described first measurement mechanism is that the identical β ray that utilizes carries out the device of scanning survey with second measurement mechanism.
Preferably, described first measurement mechanism is that the identical gamma-rays that utilizes carries out the device of scanning survey with second measurement mechanism.
Secondly, the On-Line Control Method that the present invention also provides a kind of lithium battery pole slice that utilizes described on-line control system to realize to be coated with, described method comprises:
Provide and to carry out substrates coated;
First measurement mechanism detects described base material, obtains first useful load of described base material, and the data of first useful load are sent to presetting apparatus;
Apparatus for coating carries out feed according to the default useful load of coating, and described base material is coated with, and through the drying unit oven dry, forms coating at substrate surface then;
Second measurement mechanism detects finishing substrates coated, obtains second useful load of described base material, and the data of second useful load are sent to presetting apparatus;
Presetting apparatus gathers above-mentioned data and converts, calculate the real-time useful load of coating, and compare with the default useful load of coating, send regulating command to apparatus for coating according to result relatively, apparatus for coating increases or reduces the slurry output quantity of coating by the rotating speed of adjusting the servomotor of being responsible for feed, thereby the useful load of coating is adjusted in real time.
Preferably, described base material is metallic film or metallic film with single face coating.
Preferably, described metallic film is any in aluminium foil, Copper Foil, the pure nickel band.
According to the line traffic control system and method that is coated on of the present invention, realized the closed loop program control of the coating useful load of pole piece, reached the complete monitoring of the useful load of the single or double coating of pole piece and adjusted in real time, guarantee the stability of whole coating process floating coat useful load, improve the yields of battery pole piece.
Description of drawings
Following accompanying drawing of the present invention is used to understand the present invention at this as a part of the present invention.Embodiments of the invention and description thereof have been shown in the accompanying drawing, have been used for explaining principle of the present invention.In the accompanying drawings,
Fig. 1 is the schematic diagram of the on-line control system of lithium battery pole slice coating of the present invention;
Fig. 2 is that the position of device of the on-line control system of lithium battery pole slice of the present invention coating concerns schematic diagram;
Fig. 3 is the flow chart of the On-Line Control Method of lithium battery pole slice coating of the present invention;
Fig. 4 is the schematic diagram of the on-line control system of a preferred embodiment of the present invention.
The specific embodiment
In the following description, a large amount of concrete details have been provided so that more thorough understanding of the invention is provided.Yet, it will be apparent to one skilled in the art that the present invention can need not one or more these details and implemented.In other example,, be not described for technical characterictics more well known in the art for fear of obscuring with the present invention.
The invention provides a kind of on-line control system of lithium battery pole slice coating, this system is on traditional coating process basis, the useful load original to base material detects in real time with the useful load of finishing substrates coated, and adopt presetting apparatus to compare default useful load according to the real-time useful load of coating automatically, send regulating command then to apparatus for coating, automatically adjust the slurry output quantity of coating,, finally reach qualified coating useful load so that more accurately base material is coated with.
Fig. 1 shows the schematic diagram of the on-line control system of lithium battery pole slice coating of the present invention.First measurement mechanism 101, apparatus for coating 102, drying unit 103 and second measurement mechanism 104 connect successively, and described first measurement mechanism 101, apparatus for coating 102 and second measurement mechanism 104 are connected with described presetting apparatus 105 respectively.First measurement mechanism 101 detects the original useful load of base materials, i.e. first useful load, and the data of first useful load are sent to presetting apparatus 105; Second measurement mechanism 104 detects the useful load of finishing substrates coated, i.e. second useful load, data with second useful load send to presetting apparatus 105 then, the real-time useful load of the coating of presetting apparatus 105 by calculating base material, default useful load with coating compares then, calculates the coating useful load of required adjusting, and these data are sent to apparatus for coating 102, apparatus for coating 102 can be regulated in real time like this, to reach qualified useful load; And presetting apparatus 105 is presented at coating useful load figure on the computer screen by carrying out unified data reduction, compensate and gathering.By the useful load figure, can see real-time useful load, fluctuation situation and the overall distribution situation of coating very intuitively.Like this, when setting initial painting parameter value, operating personnel can be used as foundation, judge whether coating result's loading value satisfies code requirement; And be convenient to operating personnel and monitor real-time coating state, can in time find, have problems such as coating material self etc. for abnormality; In addition, also be convenient to the whole coating process of every batch coating coiled strip is monitored and record, guarantee that product quality is in controlled range.
For guaranteeing that two measured positions of measurement mechanism are consistent, first measurement mechanism, second measurement mechanism and apparatus for coating fixed-site need be got off, guarantee that the distance between them keeps relative fixed.As shown in Figure 2, first measurement mechanism 202 is installed in after the charging aperture 201, before the apparatus for coating 203, is used to detect the original useful load of base material, i.e. first useful load; 203 pairs of base materials of apparatus for coating are coated with, and drying unit 204 is installed in after the apparatus for coating 203, is used for coating is dried; Second measurement mechanism 205 is installed in after the drying unit 204 then, detects in real time finishing substrates coated, obtains having the useful load of the base material of coating, i.e. second useful load; The last base material that can obtain having coating at discharging opening 206 places.Described first measurement mechanism 202, second measurement mechanism 205 and apparatus for coating 203 keep constant with the relative distance of discharging opening 206, like this, convert time difference of fore-and-aft survey point by first measurement mechanism 202, second measurement mechanism 205 and apparatus for coating 203 distance and current coating speed between any two, measure before utilizing measurement mechanism to the base material coating again and after being coated with, what so just can guarantee two measurement mechanisms detections is same position.
Described first measurement mechanism adopts two identical measurement mechanisms with second measurement mechanism, respectively the base material that reaches after being coated with before being coated with is measured, like this, twice measurement is to adopt same apparatus to carry out under identical condition, guarantees that the real-time useful load of the coating that records is truly, accurately.
Employed on-line measuring device can adopt any one device that is used to measure weight of material or thickness among the present invention, is preferably the device that employing β ray carries out scanning survey, for example the beta-ray measurement instrument.Described measurement mechanism mainly is made of 1 sensor device and 1 closure frame.Sensor device is fixed on the closure frame, can drive it by the dynamical system on the framework and carry out back and forth movement, carries out dynamic scan.Sensor device is divided into upper and lower two parts, upper sensor emission β ray light source, and lower sensor receives light source, and measured material is middle by scanning from 2 sensors.According to what of loss of light source, thereby calculate the weight or the thickness of material.
What described beta-ray measurement instrument detected is the loading value of base material.A low intensive radioactive source radiates low-yield β ray shoots to testee in probe, this β ray is by object interaction, and consumed energy is transmitted on the detector then, and the signal that detector is measured is directly proportional with the quality of measured object.One efficiently crystal scintillation counter/photomultiplier tube detectors the β power conversion that receives is become photon, and finally convert data signal to, this data signal is directly relevant with the weight or the thickness of product.All one-tenth-value thickness 1/10s that record all pass through inner the conversion, embody by loading value.On being provided with, all adopt the standard sample of known coating useful load, set and calibrate the actual detected value of described measurement mechanism, guarantee that the loading value that measurement mechanism obtains is accurately.The measurement mechanism built-in system is according to standard sample useful load parameter value, and the loading value to actual detected carries out parametric compensation, to determine final true loading value.
When carrying out first coating, first measurement mechanism detects the original useful load of base material, and second measurement mechanism detects the useful load of the base material with single face coating, and like this, the two subtracts each other, and obtains the real-time useful load of the actual single face coating of base material; In like manner, during second coating, first measurement mechanism detects the useful load of the base material with single face coating, and second measurement mechanism detects the useful load of the base material with coated on both sides, and like this, the two subtracts each other, and obtains the real-time useful load of second finishing coat of base material.
In addition, described on-line measuring device can also be the measurement mechanism that adopts gamma-rays to scan.Described measurement mechanism can be measured weight of material or the thickness that all scannings are passed through.
Described apparatus for coating can adopt the device that is used for the pole piece coating arbitrarily, and unrestricted.For example can be transfer coated device, extrusion coated device etc., it generally comprises applicator roll, slurry chamber and feeding system, described applicator roll is used to draw metallic film, described slurry chamber is used to hold and store certain slurry, described feeding system can be adjusted the output quantity of slurry according to the regulating command that presetting apparatus sends, for example can change the rotating speed of the servomotor of being responsible for feed, adjust the unit interval supply of slurry.
According to described on-line control system, the invention provides a kind of On-Line Control Method of lithium battery pole slice coating.Fig. 3 shows the flow chart of the On-Line Control Method of lithium battery pole slice coating of the present invention.
In step S301, provide and to carry out substrates coated.This base material can be metallic film, and for example aluminium foil, Copper Foil, pure nickel band etc. also can be for having the described metallic film of single face coating.
In step S302, first measurement mechanism detects described base material, obtains the original useful load of described base material, i.e. first useful load, and the data of first useful load are sent to presetting apparatus.Described first measurement mechanism is preferably the device that utilizes the β ray to measure, and the one-tenth-value thickness 1/10 of mensuration converts through internal system, embodies by loading value.The unit of described first useful load is preferably mg/cm
2(every square centimeter milligram quantities) also can be other suitable units.
In step S303, apparatus for coating carries out feed according to the default useful load of coating, and described base material is coated with, and through the drying unit oven dry, forms coating at substrate surface then.The coating process that described apparatus for coating adopted can for example be transfer coated technology, extrusion coated technology etc., and described base material is coated with, and described apparatus for coating for example can adopt servomotor control screw pump to carry out feed, controls the coating useful load.Then, described base material enters drying unit, for example can adopt baking oven that coating is dried.
In step S304, second measurement mechanism detects finishing substrates coated, obtains second useful load of described base material, and the data of second useful load are sent to presetting apparatus.Described second measurement mechanism adopts and the identical measurement mechanism of first measurement mechanism, is preferably the device that utilizes the β ray to measure, and the one-tenth-value thickness 1/10 of mensuration converts through internal system, embodies by loading value.The unit of described second useful load is identical with the unit of first useful load, is preferably mg/cm
2(every square centimeter milligram quantities) also can be other suitable units.
In step S305, presetting apparatus gathers above-mentioned data and converts, calculate the difference of second useful load and first useful load, it is real-time useful load, and compare with the default useful load of coating, send regulating command to apparatus for coating according to result relatively, increase or reduce the slurry output quantity of coating, thereby the useful load of coating is adjusted in real time.For example described apparatus for coating can be regulated by the servomotor of adjusting screw pump, and promptly the rotating speed of servomotor is according to the requirement of adjustment amount, and beginning increases or reduce, and like this, new coating useful load begins to be used, to reach qualified standard.
In the actual production process, (variations in temperature can cause coating material viscosity to change to variations in temperature, and then this changes the supply that can influence interior coating compound of unit interval) and the fluctuation of coating material self all may influence the useful load of final coating, this phenomenon runs through in the whole coating process, therefore online detection and control technology will monitor this type of fluctuation and feed back automatically in real time, feedback signal can be controlled the servomotor rotating speed of being responsible for feed, enables to adjust timely the unit interval supply of coating material.Like this, cycle and stable real-time detection and adjust the whole coating process process that is applied in all the time.
How will set forth by specific embodiment below utilizes above-mentioned on-line control system to come On-line Control is carried out in lithium battery pole slice coating.
On-line control system as described in Figure 4 is provided, wherein, first measurement mechanism 402 is installed in after the charging aperture 401, before the apparatus for coating 403, drying unit 404 is installed in after the apparatus for coating 403, second measurement mechanism 405 is installed in after the drying unit 404 then, and described first measurement mechanism 402, apparatus for coating 403 and second measurement mechanism 405 are connected with presetting apparatus 406 respectively.Described first measurement mechanism 402 and second measurement mechanism 405 are the beta-ray measurement instrument.At first, base material enters first measurement mechanism 402 by after the charging aperture 401, and it is 5.4-5.6 mg/cm that scanning obtains the first loading value
2, first measurement mechanism 402 sends to presetting apparatus 406 with data simultaneously; Then, base material is finished coating process at apparatus for coating 403 places, obtains coating, and the base material of coating enters into second measurement mechanism 405 after drying unit 404 is dried, and it is 29.8-30.1 mg/cm that scanning obtains the second loading value
2, second measurement mechanism 402 sends to presetting apparatus 406 with data simultaneously; Presetting apparatus 406 gathers above-mentioned data and converts, and calculates the difference of second useful load and first useful load, and promptly useful load is 24.4-24.7 mg/cm in real time
2Send regulating command then to apparatus for coating 403, apparatus for coating 403 is regulated by the servomotor of adjusting screw pump, be of the requirement of the rotating speed of servomotor according to adjustment amount, begin to increase or reduce 520-530rpm(per minute rotating speed of motor), like this, new coating useful load begins to be used, to reach qualified standard; The last base material that can obtain having coating at discharging opening 407 places.
According to above-mentioned embodiment, the certainty of measurement of coating useful load can reach ± 0.20 mg/cm
2, the yields of the pole piece of producing has improved about 8%, and in whole coating process, it is stable that the coating useful load can keep, and can also detect and observe the useful load situation of pole piece single or double coating in real time, finishes the real-time adjustment to the coating useful load automatically.
According to above-mentioned coating On-Line Control Method, realized the closed loop program control of the coating useful load of pole piece, reached the complete monitoring of coating useful load and adjustment in real time, guaranteed the stability of the useful load of whole coating process floating coat, improved the yields of battery pole piece.By coating On-Line Control Method of the present invention, can improve the certainty of measurement of coating useful load, and this method not only can detect the useful load of base material single or double coating in real time, realization is to the real-time control of coating quality, also can detect the original useful load of base material, whether thickness is even to detect base material self, whether satisfies code requirement; In addition, control model can like this, in the time of the NDC system failure or maintenance, still switch to manual mode switching between the control automatically and manually, carries out equipment operation examination and maintenance operation, also can proceed the coating operation.
The present invention is illustrated by the foregoing description, but should be understood that, the foregoing description just is used for for example and illustrative purposes, but not is intended to the present invention is limited in the described scope of embodiments.It will be appreciated by persons skilled in the art that in addition the present invention is not limited to the foregoing description, can also make more kinds of variants and modifications according to instruction of the present invention, these variants and modifications all drop in the present invention's scope required for protection.Protection scope of the present invention is defined by the appended claims and equivalent scope thereof.
Claims (10)
1. the on-line control system of lithium battery pole slice coating, described system comprises first measurement mechanism, apparatus for coating, drying unit, second measurement mechanism and presetting apparatus, described first measurement mechanism, apparatus for coating, drying unit and second measurement mechanism connect successively, and described first measurement mechanism, apparatus for coating and second measurement mechanism are connected with described presetting apparatus respectively; Described first measurement mechanism and second measurement mechanism feed back to described presetting apparatus with the data of the coating useful load that records respectively, described presetting apparatus calculates the real-time useful load of coating and compares with the default useful load of coating, issue regulating command then to described apparatus for coating, adjust the slurry output quantity of coating.
2. on-line control system as claimed in claim 1 is characterized in that, the distance between described first measurement mechanism, apparatus for coating and second measurement mechanism keeps relative fixed.
3. on-line control system as claimed in claim 1 or 2 is characterized in that, described first measurement mechanism is that the identical β ray that utilizes carries out the device of scanning survey with second measurement mechanism.
4. on-line control system as claimed in claim 1 or 2 is characterized in that, described first measurement mechanism is that the identical gamma-rays that utilizes carries out the device of scanning survey with second measurement mechanism.
5. On-Line Control Method of utilizing the lithium battery pole slice coating that the described on-line control system of claim 1 realizes is characterized in that described method comprises:
Provide and to carry out substrates coated;
First measurement mechanism detects described base material, obtains first useful load of described base material, and the data of first useful load are sent to presetting apparatus;
Apparatus for coating carries out feed according to the default useful load of coating, and described base material is coated with, and through the drying unit oven dry, forms coating at substrate surface then;
Second measurement mechanism detects finishing substrates coated, obtains second useful load of described base material, and the data of second useful load are sent to presetting apparatus;
Presetting apparatus gathers above-mentioned data and converts, calculate the real-time useful load of coating, and compare with the default useful load of coating, send regulating command to apparatus for coating according to result relatively, apparatus for coating increases or reduces the slurry output quantity of coating by the rotating speed of adjusting the servomotor of being responsible for feed, thereby the useful load of coating is adjusted in real time.
6. On-Line Control Method as claimed in claim 5 is characterized in that, described base material is metallic film or metallic film with single face coating.
7. On-Line Control Method as claimed in claim 6 is characterized in that, described metallic film is any in aluminium foil, Copper Foil, the pure nickel band.
8. On-Line Control Method as claimed in claim 5 is characterized in that, the distance between described first measurement mechanism, apparatus for coating and second measurement mechanism keeps relative fixed.
9. On-Line Control Method as claimed in claim 5 is characterized in that, described first measurement mechanism is that the identical β ray that utilizes carries out the device of scanning survey with second measurement mechanism.
10. On-Line Control Method as claimed in claim 5 is characterized in that, described first measurement mechanism is that the identical gamma-rays that utilizes carries out the device of scanning survey with second measurement mechanism.
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| CN103008184A (en) * | 2013-01-11 | 2013-04-03 | 常州工学院 | Fully-automatic loading device for pole plate coating of lithium battery and adjustment method thereof |
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| DE102012224233A1 (en) | 2012-12-21 | 2014-06-26 | Robert Bosch Gmbh | Method for wet coating of substrate i.e. metal foil, utilized for manufacturing electrodes for lithium-ion-battery cells, involves adjusting geometry of nozzles during deviation of determined thickness from predetermined layer thickness |
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| CN104169010A (en) * | 2012-01-16 | 2014-11-26 | 玛太克司马特股份有限公司 | Coating method and device |
| CN104169010B (en) * | 2012-01-16 | 2016-04-06 | 玛太克司马特股份有限公司 | Coating method and device |
| DE102012224233A1 (en) | 2012-12-21 | 2014-06-26 | Robert Bosch Gmbh | Method for wet coating of substrate i.e. metal foil, utilized for manufacturing electrodes for lithium-ion-battery cells, involves adjusting geometry of nozzles during deviation of determined thickness from predetermined layer thickness |
| DE102012224251A1 (en) | 2012-12-21 | 2014-06-26 | Robert Bosch Gmbh | Method for monitoring thickness of active material applied on substrate i.e. metal foil, utilized for manufacturing electrodes for lithium-ion-battery cells, involves controlling application of layer on substrate based on measured thickness |
| DE102012224239A1 (en) | 2012-12-21 | 2014-06-26 | Robert Bosch Gmbh | Method for monitoring thickness of coating layer applied by wet coating method to substrate used in manufacture of lithium-ion battery cells, involves measuring layer thickness prior to drying of layer, with additional measuring head |
| DE102012224228A1 (en) | 2012-12-21 | 2014-06-26 | Robert Bosch Gmbh | Method for wet coating of substrate used in manufacture of lithium-ion battery cell, involves measuring layer thicknesses of coating layer on substrate, and independently regulating pressure in each of the first nozzle by second nozzle |
| DE102012224264A1 (en) | 2012-12-21 | 2014-06-26 | Robert Bosch Gmbh | Method for wet coating of substrate for electrode of lithium ion battery cell, involves adjusting pressure of coating material in spray head when detected deviation of film thickness is above predetermined desired layer thickness |
| CN103008184A (en) * | 2013-01-11 | 2013-04-03 | 常州工学院 | Fully-automatic loading device for pole plate coating of lithium battery and adjustment method thereof |
| CN103706528A (en) * | 2014-01-09 | 2014-04-09 | 合肥恒能新能源科技有限公司 | Process for controlling density of coating production surface of battery pole piece |
| CN104209246A (en) * | 2014-07-31 | 2014-12-17 | 中天储能科技有限公司 | Automatic coating control method and system |
| CN104209246B (en) * | 2014-07-31 | 2016-03-02 | 中天储能科技有限公司 | A kind of control coating process and control system automatically |
| CN105355840A (en) * | 2015-10-20 | 2016-02-24 | 四川科能锂电有限公司 | Coating and rolling-in all-one-one machine for electrode |
| CN106370116A (en) * | 2016-10-14 | 2017-02-01 | 四川赛尔雷新能源科技有限公司 | Method and system for detecting electrolyte coating |
| CN106370116B (en) * | 2016-10-14 | 2019-02-26 | 四川赛尔雷新能源科技有限公司 | A kind of electrolyte coating detection method and system |
| CN106840052A (en) * | 2017-03-21 | 2017-06-13 | 广州中国科学院沈阳自动化研究所分所 | Pole piece coating layer thickness on-line detecting system and detection method |
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| CN110024181B (en) * | 2017-07-20 | 2022-02-22 | 株式会社Lg化学 | System and method for manufacturing electrode of secondary battery |
| US11495783B2 (en) | 2017-07-20 | 2022-11-08 | Lg Energy Solution, Ltd. | System and method for reproducible manufacturing of electrode for secondary battery |
| CN109814483A (en) * | 2019-02-20 | 2019-05-28 | 湖南科霸汽车动力电池有限责任公司 | The control method of battery pole piece slurry filling weight |
| EP4156317A4 (en) * | 2021-03-26 | 2024-05-29 | LG Energy Solution, Ltd. | Roll map for electrode coating process, roll map creation method, and roll map creation system |
| CN116804611A (en) * | 2023-08-22 | 2023-09-26 | 宁德时代新能源科技股份有限公司 | Automatic evaluation method and system for detection equipment |
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