CN105024040B - A kind of double spread lamination assembling technique and its device in lithium battery manufacturing process - Google Patents
A kind of double spread lamination assembling technique and its device in lithium battery manufacturing process Download PDFInfo
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- CN105024040B CN105024040B CN201510431736.9A CN201510431736A CN105024040B CN 105024040 B CN105024040 B CN 105024040B CN 201510431736 A CN201510431736 A CN 201510431736A CN 105024040 B CN105024040 B CN 105024040B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0407—Methods of deposition of the material by coating on an electrolyte layer
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- 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
- H01M10/0404—Machines for assembling batteries
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- 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
- H01M10/045—Cells or batteries with folded plate-like electrodes
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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- 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
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- 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
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Abstract
The present invention relates to a kind of double spread lamination assembling devices in lithium battery manufacturing process, including substrate, first traction roller unit, dust-extraction unit, first coating assembly, second traction roller unit, third draws roller unit, second coating assembly, rolling device, slicing device, transfer device and traction device, substrate has the first face and the second face, second roll draws roller unit first, on second traction roller unit and third traction roller unit, and substrate is flipped after the second traction roller unit and third traction roller unit, substrate is in traction device, first traction roller unit, under the traction of second traction roller unit and third traction roller unit, pass sequentially through dust-extraction unit, first coating assembly, second coating assembly, rolling device, to complete the double spread of substrate, it is led again by the traction device for being located at device tail end Draw successively by slicing device and transfer device, completes subsequent pole piece laminating and battery assembly process.
Description
Technical field
The present invention relates to lithium battery manufacturing fields, and in particular to a kind of folded for the double spread in lithium battery manufacturing process
Piece packaging technology and its device.
Background technique
Lithium ion battery is because of the advantages that its specific energy density is big, specific power is high, operating voltage is high, good cycling stability
Consumption electronic product, electronic transport facility, the electric energy accumulation of energy being most widely used in clean energy resource energy-storage system at present
Solution.In the lithium ion battery applications fields such as electronic transport facility, clean energy resource energy-storage system, to lithium-ion electric
More stringent requirements are proposed for the safety in pond and energy storage density.With gel-form solid polymer electrolyte, solid polyelectrolyte, inorganic
All solid state electrolyte is the solid lithium ion battery of core because of its excellent security feature and huge energy storage density Improvement
Become the main trend of next-generation lithium ion battery energy storage technology development.
Lithium ion battery based on gel-form solid polymer electrolyte, solid polyelectrolyte, inorganic full-solid electrolyte exists
In manufacturing process, gel electrolyte membrane material, solid polyelectrolyte or inorganic full-solid electrolytic thin-membrane are all referred in pole
Prepared by the coating on piece surface, be particularly advantageous for gel electrolyte, solid polyelectrolyte and inorganic solid electrolyte and play
The double spread of its performance potential still has biggish challenge in technique.
Currently, having some coating process is applied to gel electrolyte membrane material, solid polyelectrolyte and inorganic
Prepared by the coating of all solid state electrolyte film, however, they have its limitation in industrial application.For example, rotary coating
(Spin-coating) technology is difficult to realize the even spread of large area；Best-Effort request film (Dip-coating) technology due to
The thickness uniformity of gravity during lifting, gained membrane material is difficult to ensure；Scraper method is coated with (DoctorBlading)
Technology in practical applications, be easy to gel mould material surface formed air blister defect, production precision it is lower, and raw material availability compared with
It is low, double spread efficiency is lower.Moreover, need to pass through in above-mentioned several coating process in order to realize double spread and lamination assembling
The modes such as clamping overturn or shift pole piece, and the destruction and damage of contact chucking position membrane materials for electrolyte are frequently resulted in during clamping
Wound.
Slot coated (Slot Die Coating) is a kind of high-precision coating technique fast-developing in recent years, and is convenient for
Realize that roll-to-roll double spread technique, production efficiency can be guaranteed.However, common roll-to-roll slot coating technique and routine
Coating equipment is easy to destroy the membrane materials for electrolyte for being coated on pole piece two sides during crossing roller, winding etc., causes product quality
It not can guarantee.
Summary of the invention
Pole piece two sides is coated on for survivable in lithium battery manufacturing process the object of the present invention is to provide a kind of
The packaging technology and its device of the double spread lamination of membrane materials for electrolyte, it is suitable for efficient positive/negative plate is double
Face coating and battery assembly.
The technical solution adopted by the present invention: a kind of double spread lamination assembling technique in lithium battery manufacturing process,
Have follow steps: step S1 chooses collector, and is dusted to the collector；Step S2, to the one of the collector
Face is infiltrated, is coated with polar active material and drying；Step S3 overturns the collector；Step S4, to the collection
The another side of fluid infiltrated, be coated with the polar active material of step S2 identical polar and drying, to form two-sided painting
The anode pole piece or cathode pole piece of cloth active material；Step S5 carries out roll-in compacting to the anode pole piece or cathode pole piece；Step
Rapid S6 chooses cathode pole piece, and is dusted to the cathode pole piece；Step S7, to soaking on one side for the cathode pole piece
Profit, coating gel electrolyte, solid polyelectrolyte or inorganic solid electrolyte material and drying；Step S8, to described negative
Pole pole piece is overturn；Step S9, the another side of the cathode pole piece is infiltrated, be coated with material identical with step S7 and
It is dry；Step S10 to the anode pole piece and is coated with gel electrolyte, solid polyelectrolyte or inorganic solid-state electrolysis
The cathode pole piece of material is sliced and is shifted；Step S11, by after slice anode pole piece and be coated with gel electrolyte,
The cathode pole piece of solid polyelectrolyte or inorganic solid electrolyte material carries out alternate lamination and encapsulates.
Effect of the invention is both to have can be used for gel-form solid polymer electrolyte membrane material, solid polyelectrolyte and inorganic
Prepared by the coating of all solid state electrolyte membrane material, it can also be used to which the coating of positive and negative electrode pole piece, applicability are wider.
Further, each pole piece all has ontology and tab after being sliced, and the ontology two sides of the anode pole piece applies
Positive electrode active materials are furnished with, the tab of the anode pole piece, which is not coated with, is furnished with positive electrode active materials；The ontology two of the cathode pole piece
Face has been coated with negative electrode active material, and the tab of the cathode pole piece, which is not coated with, is furnished with negative electrode active material.
Further, the ontology two sides of the cathode pole piece is further coated with polymer in addition to being coated with negative electrode active material
The tab two sides of gel electrolyte, solid polyelectrolyte or inorganic full-solid membrane materials for electrolyte, the cathode pole piece is leaned on
One end part of the nearly ontology is coated with gel-form solid polymer electrolyte, polymer solid electrolysis, inorganic full-solid electrolyte
Membrane material is covered with insulating tape.
The technical solution adopted by the present invention: a kind of double spread lamination assembling device in lithium battery manufacturing process,
Including substrate, first traction roller unit, dust-extraction unit, the first coating assembly, second traction roller unit, third traction roller unit,
Second coating assembly, slicing device, transfer device and traction device, wherein the substrate has the first face and the second face, institute
The second roll is stated on the first traction roller unit, the second traction roller unit and third traction roller unit, and the substrate passes through
It is flipped after crossing the second traction roller unit and third traction roller unit, the substrate is led in the traction device, first
Under the traction of pick-up roll unit, the second traction roller unit and third traction roller unit, the dust-extraction unit, the first coating are passed sequentially through
Component and the second coating assembly, to complete the double spread of the substrate, then the traction device by being located at device tail end is drawn
Successively pass through slicing device and transfer device, completes subsequent pole piece laminating and battery assembly process.
Effect of the invention: gel-form solid polymer electrolyte membrane material, solid polyelectrolyte and inorganic had both been can be used for
Prepared by the coating of all solid state electrolyte membrane material, it can also be used to which the coating of positive and negative electrode pole piece, applicability are wider；Furthermore it is ensured that
It is coated on gel-form solid polymer electrolyte on cathode pole piece, solid polyelectrolyte, inorganic full-solid membrane materials for electrolyte not
It will receive the mechanical presses of the devices such as traction roller, to effectively prevent gel electrolyte when double spread, polymer solid electricity
The destruction and damage for solving matter or inorganic full-solid membrane materials for electrolyte, in addition, preparing positive and negative anodes pole using double spread is not wound
Piece greatly improves production efficiency.
Further, when the substrate is collector, the double spread lamination in lithium battery manufacturing process
Assembling device further includes rolling device, the substrate the traction device, first traction roller unit, second traction roller unit and
Third is drawn under the traction of roller unit, and the dust-extraction unit, the first coating assembly, the second coating assembly and roll-in dress are passed sequentially through
It sets, to complete the double spread of the substrate, then is drawn by the traction device, successively pass through the slicing device and transfer
Device completes subsequent pole piece laminating and battery assembly process.
Further, first coating assembly includes the first infiltration apparatus, the first apparatus for coating and the first drying device,
Second coating assembly includes the second infiltration apparatus, the second apparatus for coating and the second drying device, first infiltration apparatus
It is respectively positioned on the delivery port of the first apparatus for coating above the first face of the substrate, second infiltration apparatus and the second painting arrange
The delivery port set is respectively positioned on above the second face of the substrate.
Further, first infiltration apparatus and the second infiltration apparatus are atomizer, spray equipment, immersion fluid are housed
Container or above-mentioned three any combination；First apparatus for coating and the second apparatus for coating are slot coated die head, ultrasound
Atomizer, two phase flow atomizer, spray equipment or above-mentioned four any combination；First drying device and second dry
Dry device be baking oven, ultraviolet curing device, light curring unit, convective drying case or above-mentioned four any combination.
Further, the dust-extraction unit be hairbrush dust-extraction unit, electrostatic precipitator, flow filtration dust-extraction unit or on
State any combination of three.
Further, the slicing device is cross cutting slicing device or laser dicing device；The transfer device is negative pressure
Suction piece device or manipulator tray device.
Further, the first traction roller unit, the second traction roller unit and third traction roller unit are air bearing traction
Roller or contact traction roller.
Detailed description of the invention
Fig. 1 show the double spread lamination assembling of first embodiment of the invention offer being used in lithium battery manufacturing process
Process flow chart.
Fig. 2 show structural schematic diagram of the plus plate current-collecting body after slicing step as shown in Figure 1.
Fig. 3 show structural schematic diagram of the cathode pole piece after slicing step as shown in Figure 1.
Fig. 4 show anode pole piece provided in an embodiment of the present invention, double spread has gel electrolyte, polymer solid electricity
Solve the top view of the lamination process of the cathode pole piece of matter or inorganic full-solid electrolyte.
Fig. 5 show the double spread lamination assembling of second embodiment of the invention offer being used in lithium battery manufacturing process
The structural schematic diagram of device.
In attached drawing, parts list represented by the reference numerals are as follows:
101, the first traction roller unit, the 102, second traction roller unit, 103, third traction roller unit, 104, traction dress
It sets, 105, dust-extraction unit, the 106, first infiltration apparatus, the 107, first apparatus for coating, the 108, first drying device, the 109, second leaching
Moisten device, the 110, second apparatus for coating, the 111, second drying device, 112, slicing device, 113, transfer device, 114, roll-in dress
It sets, 200, anode pole piece, 201, positive ontology, 202, positive pole ear, 300, cathode pole piece, 301, cathode ontology, 302, cathode
Tab.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Referring to Fig. 1, the double spread lamination being used in lithium battery manufacturing process provided for first embodiment of the invention
Process flow for assembling figure.In the fabrication process, the double spread lamination assembling process flow chart of collector has following lithium battery
Step:
Step S1 chooses collector, and is dusted to the collector；
Step S2 to being infiltrated on one side of the collector, is coated with polar active material and drying；
Step S3 overturns the collector；
Step S4 infiltrates the another side of the collector, is coated with polar active material with step S2 identical polar
And drying, to form the anode pole piece or cathode pole piece of double spread active material；
Step S5 carries out roll-in compacting to the anode pole piece or cathode pole piece；
Step S6 chooses cathode pole piece, and is dusted to the cathode pole piece；
Step S7 to being infiltrated on one side of the cathode pole piece, is coated with gel electrolyte, solid polyelectrolyte or nothing
Machine solid electrolyte material and drying；
Step S8 overturns the cathode pole piece；
Step S9 infiltrates the another side of the cathode pole piece, is coated with material identical with step S7 and drying；
Step S10 to the anode pole piece and is coated with gel electrolyte, solid polyelectrolyte or inorganic solid-state electrolysis
The cathode pole piece of material is sliced and is shifted；
Step S11, by after slice anode pole piece be coated with gel electrolyte, solid polyelectrolyte or inorganic solid
The cathode pole piece of state electrolyte carries out alternate lamination and encapsulates.
Referring to Fig. 2, forming anode pole piece after the two sides for collector provided by the invention is coated with positive electrode active materials
200 structural schematic diagram.Anode pole piece 200 has positive ontology 201 and positive pole ear 202 after being sliced, anode pole piece 200
Positive 201 two sides of ontology has been coated with positive electrode active materials, and positive pole ear 202, which is not coated with, is furnished with positive electrode active materials.
Referring to Fig. 3, the two sides for cathode pole piece 300 provided by the invention is coated with gel-form solid polymer electrolyte, polymerization
Structural schematic diagram after object solid electrolyte or inorganic full-solid membrane materials for electrolyte.Cathode pole piece 300 has negative after being sliced
Pole ontology 301 and negative lug 302,301 two sides of cathode ontology of cathode pole piece 300 are gone back in addition to being coated with negative electrode active material
It is coated with gel-form solid polymer electrolyte, solid polyelectrolyte or inorganic full-solid membrane materials for electrolyte, 302 liang of negative lug
Face, which is not coated with, is furnished with negative electrode active material, but close to cathode ontology 301 one end part be coated with gel-form solid polymer electrolyte,
Solid polyelectrolyte, inorganic full-solid membrane materials for electrolyte are covered with insulating tape.And the size of anode pole piece 200
Size compared with cathode pole piece 300 is bigger than normal.
Please refer to Fig. 4 which shows top view of the positive and negative electrode pole piece after lamination process.Due to anode pole piece
200 size is big compared with the size of cathode pole piece 300, and the negative lug 302 of cathode pole piece 300 is contacted with anode pole piece 200
Part is coated with gel electrolyte, solid polyelectrolyte, inorganic full-solid membrane materials for electrolyte or is covered with insulating tape,
In this way, battery short circuit can be effectively prevent.
It therefore, is to realize this lamination process, in coated polymeric gel electrolyte, solid polyelectrolyte or inorganic
When all solid state electrolyte membrane material, the size being sliced in coating width and slice process step should be reasonably set, so that negative
The negative lug 302 of pole pole piece 300 is close to one end part of cathode ontology 301 by gel-form solid polymer electrolyte, polymer solid
Electrolyte, inorganic full-solid membrane materials for electrolyte or insulating tape covering.
In addition, needing to use different immersion fluids, coating presoma according to technique in coating process.For example, for just,
When the coating of cathode pole piece active material, the coating presoma in the first face and the second face to the collector is positive or cathode coating
Slurry, wherein positive coating sizing-agent includes positive electrode active materials (cobalt acid lithium, lithium nickelate, LiMn2O4, cobalt nickel ion doped ternary material
And LiFePO4 etc. or combinations of the above), conductive agent, binder, solvent mixture.Cathode coating sizing-agent includes that cathode is living
The mixing of property material (graphite, lithium titanate, silicon/carbon compound cathode materials etc. or combinations of the above), conductive agent, binder, solvent
Object.The solvent of positive or negative pole material disperse system can be used in the immersion fluid that profit is invaded in the first face and the second face to the collector；For
When gel-form solid polymer electrolyte membrane material is coated with, presoma one that the first face of cathode pole piece 300 and the second face use when being coated with
As be by polymeric matrix, electrolyte ingredient lithium salts, plasticizer, surfactant, inorganic material nano particle, fire-retardant addition
Agent, antioxidant, film for additive, anti-overcharge additive and multi-solvents etc. are formulated, to the of the cathode pole piece 300
Immersion fluid when invading profit with the second face on one side selects primary solvent therein according to the formula of coating presoma；For polymerizeing
When object solid electrolyte or inorganic full-solid membrane materials for electrolyte are coated with, powder or its dispersion of the electrolyte can be selected
System.The characteristics of according to coating presoma, drying process and its device appropriate are selected in drying steps.
Technique provided by the invention both can be used for gel-form solid polymer electrolyte membrane material, solid polyelectrolyte and nothing
Prepared by the coating of machine all solid state electrolyte membrane material, it can also be used to which the coating of positive and negative electrode pole piece, applicability are wider.
Referring to Fig. 5, the double spread lamination being used in lithium battery manufacturing process provided for second embodiment of the invention
The structural schematic diagram of assembling device, the double spread lamination assembling device being used in lithium battery manufacturing process be not only suitable for just,
The coating of cathode pole piece, it can also be used to gel-form solid polymer electrolyte membrane material, solid polyelectrolyte and inorganic full-solid electricity
Solve the coating preparation of film material.
When the assembling device is used for the coating of positive and negative electrode pole piece, which includes substrate, the first traction roller unit
101, dust-extraction unit 105, the first infiltration apparatus 106, the first apparatus for coating 107, the first drying device 108, the second traction roller list
Member 102, third draw roller unit 103, the second infiltration apparatus 109, the second apparatus for coating 110, the second drying device 111, roll-in
Device 114, slicing device 112, transfer device 113 and traction device 104, and the substrate is collector, the first apparatus for coating 107
It is polar active material with the coating material in the second apparatus for coating 110.The substrate has the first face and the second face, second face
Volume is drawn on roller unit 102 and third traction roller unit 103 in the first traction roller unit 101, second, and the substrate passes through second
It is flipped after traction roller unit 102 and third traction roller unit 103.The substrate draws roller unit in traction device 104, first
101, under the traction of the second traction roller unit 102 and third traction roller unit 103, which has certain tension, successively passes through
Cross dust-extraction unit 105, the first infiltration apparatus 106, the first apparatus for coating 107 and the first drying device 108, the second infiltration apparatus
109, the second apparatus for coating 110, the second drying device 111, rolling device 114, so that the double spread of the substrate is completed, then
Sliced device 112 and transfer device 113, complete subsequent pole piece laminating and battery assembly process.First infiltration apparatus 106
It is respectively positioned on the delivery port of the first apparatus for coating 107 above first face of the substrate, the second infiltration apparatus 109 and the second painting arrange
110 delivery port is set to be respectively positioned on above the second face of the substrate.
When the assembling device is for gel-form solid polymer electrolyte membrane material, solid polyelectrolyte and inorganic full-solid electricity
When solving the coating of film material, which includes substrate, the first traction roller unit 101, the infiltration of dust-extraction unit 105, first
Device 106, the first apparatus for coating 107, the first drying device 108, second draw roller unit 102, third draws roller unit 103,
Second infiltration apparatus 109, the second apparatus for coating 110, the second drying device 111, slicing device 112, transfer device 113 and traction
Device 104, and the substrate is cathode pole piece, the coating material in the first apparatus for coating 107 and the second apparatus for coating 110 is gel
Electrolyte, solid polyelectrolyte or inorganic solid electrolyte material.The substrate has the first face and the second face, second face
Volume is drawn on roller unit 102 and third traction roller unit 103 in the first traction roller unit 101, second, and the substrate passes through second
It is flipped after traction roller unit 102 and third traction roller unit 103.The substrate draws roller unit in traction device 104, first
101, under the traction of the second traction roller unit 102 and third traction roller unit 103, which has certain tension, successively passes through
Cross dust-extraction unit 105, the first infiltration apparatus 106, the first apparatus for coating 107 and the first drying device 108, the second infiltration apparatus
109, the second apparatus for coating 110 and the second drying device 111, to complete the double spread of the substrate, then sliced device
112 and transfer device 113, complete subsequent pole piece laminating and battery assembly process.First infiltration apparatus 106 and the first coating
The delivery port of device 107 is respectively positioned on above the first face of the substrate, and the second infiltration apparatus 109 and the second apparatus for coating 110 are passed
Mouth is sent to be respectively positioned on above the second face of the substrate.
It can be air bearing traction roller that first traction roller unit 101, second, which draws roller unit 102 and third traction roller unit 103,
Or contact traction roller.
The dust-extraction unit 105 can be hairbrush dust-extraction unit, electrostatic precipitator, flow filtration dust-extraction unit or above-mentioned three
Any combination.After dust-extraction unit 105, the pollutants such as particulate solid adsorbed thereon are removed the substrate.Yu Ben
In embodiment, dust-extraction unit 105 is the combination of hairbrush dust-extraction unit and electrostatic precipitator.
First infiltration apparatus 106 and the second infiltration apparatus 109 are used to suitable immersion fluid being equably applied to substrate
Surface, by being infiltrated in advance so that sufficiently being infiltrated when applying material and coating object contact in subsequent coating process, guarantee applies
The effect of cloth technique.First infiltration apparatus 106 and the second infiltration apparatus 109 can be atomizer, spray equipment, equipped with infiltration
Any combination of the container of liquid or above-mentioned three.The folder of first infiltration apparatus 106 and the second infiltration apparatus 109 and the substrate plane
Angle can be adjusted according to flexible process design.It is to be appreciated that the first infiltration apparatus 106 and the second infiltration apparatus 109 can be identical,
It can not also be identical.
First apparatus for coating 107 and the second apparatus for coating 110 will be for that will be coated with the table that presoma is equably coated on substrate
Face.First apparatus for coating 107 and the second apparatus for coating 110 can be slot coated die head, ultrasonic atomizatio shower nozzle, two phase flow atomization
Spray head, spray equipment or above-mentioned four any combination, be precise dipping technology, the consistency of so certifiable technique is coagulated
The coating of glue dielectric film is up to 10um ± 500nm.First apparatus for coating 107 and the second apparatus for coating 110 and substrate plane
Angle can be adjusted according to flexible process design.It is to be appreciated that the first apparatus for coating 107 and the second apparatus for coating 110 can phases
It together, can not also be identical.
First drying device 108 and the second drying device 111 are used to make the presoma solidification of coating, film forming, densified sintering product
Change and adhere well to the surface of the substrate, also forms certain microstructure with phase separation in some cases.The
One drying device 108 and the second drying device 111 can for baking oven, ultraviolet curing device, light curring unit, drying box or on
State four any combination.In this present embodiment, the first infiltration apparatus 106 and the second infiltration apparatus 109 are two phase flow atomization spray
Head；First apparatus for coating 107 and the second apparatus for coating 110 are slot coated die head；First drying device 108 and the second dry dress
111 are set as drying box.It is to be appreciated that the first drying device 108 and the second drying device 111 can be identical, it can not also phase
Together.
Rolling device 114 is twin rollers, for increasing the compacted density for the polar active material being coated on the collector.
Slicing device 112 can be cross cutting slicing device or laser dicing device.In this present embodiment, slicing device 112 is
It is die cut slicing device.
Transfer device 113 can be negative pressure suction piece device or manipulator tray device.In this present embodiment, transfer device 113
Including vacuum suction piece transfer robot arm and a controller.
It is to be appreciated that the first infiltration apparatus 106, the first apparatus for coating 107 and the first drying device 108 can also all or
Part setting is between the second traction roller unit 102 and third traction roller unit 103.
The present invention both can be used for gel-form solid polymer electrolyte membrane material, solid polyelectrolyte and inorganic full-solid electricity
Solve the coating preparation of film material, it can also be used to which the coating of positive and negative electrode pole piece, applicability are wider；Furthermore it is ensured that being coated on negative
Gel-form solid polymer electrolyte, solid polyelectrolyte or inorganic full-solid membrane materials for electrolyte on the pole piece of pole not will receive and lead
The mechanical presses of the devices such as pick-up roll, to effectively prevent the destruction and damage of membrane material when double spread.In addition, using not receiving
Volume double spread prepares positive and negative electrode pole piece, greatly improves production efficiency.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of double spread lamination assembling device in lithium battery manufacturing process, it is characterised in that: including substrate, first
Draw roller unit, dust-extraction unit, the first coating assembly, second traction roller unit, third traction roller unit, the second coating assembly,
Slicing device, transfer device and traction device, wherein the substrate has the first face and the second face, and second roll exists
On the first traction roller unit, the second traction roller unit and third traction roller unit, and the substrate is led by described second
It is flipped after pick-up roll unit and third traction roller unit, the substrate is in the traction device, the first traction roller unit, second
Under the traction for drawing roller unit and third traction roller unit, the dust-extraction unit is passed sequentially through, the first coating assembly and second applies
Cloth component, to complete the double spread of the substrate, then the traction of the traction device by being located at device tail end is successively by being sliced
Device and transfer device complete subsequent pole piece laminating and battery assembly process；
When the substrate is collector, the double spread lamination assembling device in lithium battery manufacturing process further includes
Rolling device, the substrate draw roller unit in the traction device, the first traction roller unit, the second traction roller unit and third
Traction under, the dust-extraction unit, the first coating assembly, the second coating assembly and rolling device are passed sequentially through, to complete institute
The double spread of substrate is stated, then is drawn by the traction device, the slicing device and transfer device are successively passed through, is completed subsequent
Pole piece laminating and battery assembly process, wherein coating material in first coating assembly and the second coating assembly is polarity
Active material；
First coating assembly includes the first infiltration apparatus, the first apparatus for coating and the first drying device, second coating
Component includes the second infiltration apparatus, the second apparatus for coating and the second drying device, and first infiltration apparatus and first, which apply, to be arranged
The delivery port set is respectively positioned on above the first face of the substrate, and the delivery port of second infiltration apparatus and the second apparatus for coating is equal
Above the second face of the substrate；
The slicing device is cross cutting slicing device or laser dicing device；The transfer device is negative pressure suction piece device or machinery
Hand pallet apparatus.
2. as described in claim 1 for the double spread lamination assembling device in lithium battery manufacturing process, it is characterised in that:
First infiltration apparatus and the second infiltration apparatus are atomizer, spray equipment, the container equipped with immersion fluid or above-mentioned three
Any combination；First apparatus for coating and the second apparatus for coating are slot coated die head, ultrasonic atomizatio shower nozzle, two phase flow mist
Change spray head, spray equipment or above-mentioned four any combination；First drying device and the second drying device are baking oven, light is solid
Makeup sets, any combination of convective drying case or above-mentioned three.
3. as claimed in claim 1 or 2 for the double spread lamination assembling device in lithium battery manufacturing process, feature exists
In: the dust-extraction unit is any group of hairbrush dust-extraction unit, electrostatic precipitator, flow filtration dust-extraction unit or above-mentioned three
It closes.
4. as claimed in claim 1 or 2 for the double spread lamination assembling device in lithium battery manufacturing process, feature exists
In: the first traction roller unit, the second traction roller unit and third traction roller unit are that air bearing traction roller or contact are drawn
Roller.
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| CN107626538B (en) * | 2017-10-27 | 2018-08-07 | 深圳市信宇人科技股份有限公司 | Double spread method and device |
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| CN113013475A (en) * | 2021-02-25 | 2021-06-22 | 深圳吉阳智能科技有限公司 | Laminated cell production process, laminated cell production system and laminated cell |
| CN113206222A (en) * | 2021-05-06 | 2021-08-03 | 合肥国轩高科动力能源有限公司 | Method for preparing lithium battery pole piece with low solvent and prepared pole piece |
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