CN109148967A - Combined type laminated cell and its stacked wafer cells and laminating method - Google Patents
Combined type laminated cell and its stacked wafer cells and laminating method Download PDFInfo
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- CN109148967A CN109148967A CN201810834683.9A CN201810834683A CN109148967A CN 109148967 A CN109148967 A CN 109148967A CN 201810834683 A CN201810834683 A CN 201810834683A CN 109148967 A CN109148967 A CN 109148967A
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- pole piece
- diaphragm
- stacked wafer
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- laminated cell
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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
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of combined type laminated cell and its stacked wafer cells and laminating method, wherein laminating method includes the following steps: stacked wafer cells making step, makes the first pole piece of laminated structure；Two surface dispensings to first pole piece；First diaphragm is compounded on the first pole piece surface for dispensing glue, the second diaphragm is compounded on the first pole piece another surface for dispensing glue, forms stacked wafer cells；Second pole piece making step, makes the second pole piece of laminated structure, and the polarity of second pole piece and the first pole piece is opposite；Step is stacked, is stacked alternately the stacked wafer cells and the second pole piece to form laminated cell.This method technique high concentration, in laminated cell produced, pole piece is not easy to misplace, diaphragm is not wrinkled, not high to the flexibility requirements of pole piece and diaphragm, further avoids the generation for the problems such as generating analysis lithium, short circuit.
Description
Technical field
The application designs lithium ion battery lamination battery core production field, and in particular to a kind of combined type laminated cell and its folded
Blade unit and laminating method.
Background technique
In lithium ion battery production process, need by ingredient, coating, roll-in, tab molding, lamination or winding, group
Dress, dry fluid injection, liquid injection port sealing, forming and capacity dividing process, wherein lamination or rolling step, determine the crucial work of battery quality
Sequence.
Zigzag lamination and winding battery core are mainstreams at present, zigzag lamination device be pole piece is transported to by manipulator it is folded
Piece station carries out positive and negative plate and replaces lamination, and diaphragm is moved repeatedly with lamination stacking table, and the problem of this device maximum is to be easy to lead
Diaphragm corrugation, folded multi-pole-piece are caused, making battery, there are security risks；Winding battery core winding device be by winding mechanism will just,
Negative electrode tab is wound together, and winding process is easy that there are internal stress there are tension force effect inside laminated cell, pole piece is in charge and discharge
It is easy to analysis lithium in the process, leads to security risk.
For the principle of above zigzag lamination device and winding device, using zigzag lamination device and winding device into
When row production laminated cell, have the disadvantage in that
The first, zigzag lamination device supplied materials when pole piece be stacking together, since there are electrostatic between pole piece, cause
There is certain adsorption capacity between pole piece, folded multi-disc is easily lead in manipulator moving process, influences product yield and safety
Property；
The second, lamination stacking table is moved repeatedly with diaphragm during zigzag lamination, and diaphragm is easy fold, and part is caused to analyse lithium,
Generate security risk；
Positive and negative plate and diaphragm are rolled into battery core by winding tension by third, winding device, and there are internal stress, electricity for inside
Pole piece is easy to produce deformation in the charge and discharge process of pond, and part is caused to analyse lithium, generates security risk；
4th, there are tension by winding process for winding device, have relatively high requirement to pole piece flexibility, at present mainstream
Develop toward high capacity, high-pressure solid direction, pole piece flexibility is poor, seriously affects efficiency and yields, winding process is not suitable
With；
5th, tab molding and lamination or winding are divided into two procedures, material transfer process often malfunctions, defective products is more,
Operator is more.
Therefore, the prior art has much room for improvement and improves.
Summary of the invention
The application is intended to provide a kind of combined type laminated cell and its stacked wafer cells and laminating method, to improve laminated cell
Production efficiency and product yields.
According to a first aspect of the present application, this application provides a kind of laminating methods of combined type laminated cell, including such as
Lower step:
Stacked wafer cells making step makes the first pole piece of laminated structure；Two surface dispensings to first pole piece；
First diaphragm is compounded on the first pole piece surface for dispensing glue, by the second diaphragm be compounded in the first pole piece it is for dispensing glue another
On surface, stacked wafer cells are formed；
Second pole piece making step makes the second pole piece of laminated structure, the polarity of second pole piece and the first pole piece
On the contrary；
Step is stacked, is stacked alternately the stacked wafer cells and the second pole piece to form laminated cell.
According to a second aspect of the present application, present invention also provides a kind of combined type laminations based on the laminating method
The stacked wafer cells of battery core, comprising: the first diaphragm, the first pole piece and the second diaphragm being cascading from top to bottom；Described
One diaphragm, the first pole piece and the second diaphragm structure in the form of sheets；Between first diaphragm and the first pole piece, first pole piece
Adhesive layer is provided between the second diaphragm, first diaphragm, the first pole piece and the second diaphragm pass through the binder
Layer bonding is integral.
According to the third aspect of the application, present invention also provides a kind of combined type laminations based on the laminating method
Battery core, comprising: the stacked wafer cells that m is stacked are provided with second pole piece between two adjacent stacked wafer cells,
In, m is the positive integer more than or equal to 2；Second pole piece structure in the form of sheets；The stacked wafer cells include: from top to bottom successively
The first diaphragm, the first pole piece and the second diaphragm being stacked；First diaphragm, the first pole piece and the second diaphragm are in the form of sheets
Structure；It is provided with adhesive layer between first diaphragm and the first pole piece, between first pole piece and the second diaphragm, institute
It is integral by adhesive layer bonding to state the first diaphragm, the first pole piece and the second diaphragm；First pole piece and second
The polarity of pole piece is opposite.
The beneficial effects of the present invention are:
This application provides a kind of laminating methods of combined type laminated cell, include the following steps: stacked wafer cells production step
Suddenly, the first pole piece of laminated structure is made；Two surface dispensings to first pole piece；First diaphragm is compounded in the first pole
On a piece surface for dispensing glue, the second diaphragm is compounded on the first pole piece another surface for dispensing glue, forms stacked wafer cells；The
Two pole piece making steps, make the second pole piece of laminated structure, and the polarity of second pole piece and the first pole piece is opposite；Stack step
Suddenly, the stacked wafer cells and the second pole piece are stacked alternately to form laminated cell.
Detailed description of the invention
Fig. 1 is the laminating method flow chart of combined type laminated cell provided by the invention；
Fig. 2 is the structural schematic diagram of the laminating equipment of production combined type laminated cell provided by the invention；
Fig. 3 is the structural scheme of mechanism of the device for pilling of production combined type laminated cell provided by the invention；
Fig. 4 is the structural schematic diagram of the stacked wafer cells of combined type laminated cell provided by the invention；
Fig. 5 is the structural schematic diagram of combined type laminated cell in a kind of embodiment provided by the invention；
Fig. 6 is the structural schematic diagram of combined type laminated cell in another embodiment provided by the invention.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.
Embodiment one,
It is shown in Figure 1, a kind of laminating method of combined type laminated cell is present embodiments provided, is included the following steps:
Stacked wafer cells making step 1000 makes the first pole piece of laminated structure；To the first of the laminated structure being fabricated to
Two surface dispensings of pole piece；First diaphragm is compounded on the first pole piece surface for dispensing glue, the second diaphragm is compounded in
On first pole piece another surface for dispensing glue, formed successively be bonded together by the first diaphragm, the first pole piece and the second diaphragm
The stacked wafer cells of composition.
Specifically, compound by quick-setting mode between the first pole piece and the first diaphragm and the second diaphragm after dispensing
Together, rapid curing can be realized by modes such as heating, so that the first diaphragm, the first pole piece and the second diaphragm quickly bond,
And it is firmly bonded, the production of process after not influencing.
Second pole piece making step 2000 makes the second pole piece of laminated structure, wherein the second pole piece and the first pole piece
Polarity is opposite.
Step 3000 is stacked, is stacked alternately stacked wafer cells and the second pole piece to form laminated cell.
Specifically, the stacked wafer cells and the second pole piece that are stacked alternately are in the stacking direction, the stacked wafer cells completed toward lamination
With the surrounding rubberizing of the second pole piece, or the mode compound by heat along the opposite direction of stacking, make the stacked wafer cells being stacked alternately
Laminated cell is formed with the second pole piece.
It is shown in Figure 2, to realize that laminating equipment used in the laminating method of combined type laminated cell includes: lamination list
First producing device 10, the second pole piece producer agency 20 and device for pilling 30, stacked wafer cells producing device 10 is for making lamination list
Member, the second pole piece producer agency 20 is for making the second pole piece, and device for pilling 30 is for being stacked alternately stacked wafer cells producing device
The stacked wafer cells of 10 production and the second pole piece of the second pole piece producer agency 20 production are to form laminated cell.Preferably, it stacks
Device 30 is located between the output end of stacked wafer cells producing device 10 and the output end of the second pole piece producer agency 20.
With continued reference to shown in Fig. 2, stacked wafer cells producing device 10 includes setting gradually: the first pole piece manufacturing mechanism, point
Gluing mechanism 14 and diaphragm composite structure.First pole piece manufacturing mechanism is used to the first pole piece coiled strip 100 being fabricated to the first pole piece
110；Two surface dispensings of the first pole piece 110 that glue applying mechanism 14 is used to be fabricated to the first pole piece manufacturing mechanism, i.e. dispensing
Dispensing is distinguished to the upper and lower surfaces of the first pole piece 110 by mechanism 14；Diaphragm composite structure is for the first diaphragm to be compounded in
On the surface for dispensing glue of first pole piece 110, the second diaphragm is compounded on the first pole piece another surface for dispensing glue, i.e. diaphragm
First diaphragm is compounded in the upper surface of the first pole piece 110 after dispensing by composite structure, after the second diaphragm is compounded in dispensing
The lower surface of first pole piece 110.Pass through quick-setting side between the first pole piece and the first diaphragm and the second diaphragm after dispensing
Formula is bonded together, to form stacked wafer cells,.
Specifically, the first pole piece manufacturing mechanism includes setting gradually: the first pole piece unwinding assembly 11, the first pole piece cut pole
Ear component 12 and first cuts component 13.First pole piece unwinding assembly 11 for unreeling out the first pole piece coiled strip 100, specifically with
The mode for unreeling discharging unreels out the first pole piece coiled strip 100；First, which cuts tab component 12, is arranged in the first pole piece unwinding assembly 11
Output end, be used to cut tab to the first pole piece coiled strip 100 that the first pole piece unwinding assembly 11 unreels out, it is preferred that first
Cutting tab component 12 is to cut tab in such a way that laser cuts tab, and with precision height, it is excellent that the burr of the tab cut lacks etc.
Point；First, which cuts component 13, is arranged in the first output end for cutting tab component 12, is used to cut tab component 12 for first and cuts pole
100 fixed length of the first pole piece coiled strip after ear cuts into the first pole piece 110.
Diaphragm composite structure include: the first diaphragm unwinding assembly 15, the second diaphragm unwinding assembly 16, roll-in component 17 and every
Film cuts component 18.First diaphragm unwinding assembly 15 is for discharging the first diaphragm coiled strip 300, and by the first diaphragm coiled strip of release
300 cover on a surface after 110 dispensing of the first pole piece, i.e. the first diaphragm unwinding assembly 15 is by the first diaphragm coiled strip 300
Upper surface after being discharged into 110 dispensing of the first pole piece；Second diaphragm unwinding assembly 16 is used to discharge the second diaphragm coiled strip 400, and
Second diaphragm coiled strip 400 of release is covered on another surface after 110 dispensing of the first pole piece, i.e. the second membrane unwinding group
Second diaphragm coiled strip 400 is discharged into the lower surface after 110 dispensing of the first pole piece by part 16；Roll-in component 17 is used for will by roll-in
First diaphragm coiled strip 300, the first pole piece 110 and the second diaphragm coiled strip 400 are compound, while roll-in, for realize pole piece and every
The rapid curing of film appropriate can heat so as to be located at the glue rapid curing on pole piece two sides；Diaphragm cuts component 18 for multiple
Fixed length is carried out to the first diaphragm coiled strip 300 and the second diaphragm coiled strip 400 before closing or after compound and cuts into the first diaphragm 310 and the
Two diaphragms 410, to form stacked wafer cells.Preferably, the output of the first diaphragm unwinding assembly 15 and the second diaphragm unwinding assembly 16
End is provided with diaphragm and cuts component 18, two diaphragms cut component 18 and meanwhile respectively to the first diaphragm coiled strip 300 and second every
400 fixed length of film roll material is cut, and forms the first diaphragm 310 and the second diaphragm 410.In other words, diaphragm cuts component 18 and can be set
In the upstream or downstream of roll-in component 17, when diaphragm cuts component 18, and the upstream of roll-in component 17 is arranged in, to compound preceding
First diaphragm coiled strip 300 and 400 fixed length of the second diaphragm coiled strip are cut；It is arranged under roll-in component 17 when diaphragm cuts component 18
You Shi, to after compound the first diaphragm coiled strip 300 and 400 fixed length of the second diaphragm coiled strip cut.
In the present embodiment, roll-in component 17 includes a pair of of roller, and a pair of of roller is separately positioned on first to be bonded together
Above and below diaphragm, the first pole piece and the second diaphragm, a pair of of roller is respectively to, extruding mobile close to the direction of stacked wafer cells
The first diaphragm 310, the first pole piece 110 and the second diaphragm 410 that are stacked simultaneously drive it to move forward together, by first every
Film 310, the first pole piece 110 and 410 roll-in of the second diaphragm are combined with each other, and form stacked wafer cells.
Second pole piece manufacturing mechanism 20 includes setting gradually: the second pole piece unwinding assembly 21, second cut tab component 22
Component 23 is cut with second.Second pole piece unwinding assembly 21 is for unreeling out the second pole piece coiled strip 200, specifically to unreel discharging
Mode unreel out the second pole piece coiled strip 200；Second cuts the output end that the second pole piece unwinding assembly 21 is arranged in tab component 22,
It is used to cut tab to the second pole piece coiled strip 200 that the second pole piece unwinding assembly 21 unreels out；Second, which cuts the setting of component 23, exists
Second cuts the output end of tab component 22, is used to cut tab component 22 for second and cuts the second pole piece coiled strip 200 after tab and determine
Length is cut to form the second pole piece 210.
Device for pilling 30 is specifically used for: stacking the sequence alternate of the second pole piece 210 after stacked wafer cells first to stack and is laminated to
The default number of plies finally stacks a stacked wafer cells again and forms laminated cell；Alternatively, with first stack stack after the second pole piece 210 it is folded
The sequence alternate of blade unit is laminated to the default number of plies, finally stacks second pole piece 210 again and forms laminated cell.
Specifically, the polarity of the first pole piece and the second pole piece is on the contrary, if the first pole piece is cathode pole piece, the second pole piece is positive
When the pole piece of pole, device for pilling 30 stacks the sequence alternate of the second pole piece 210 after stacked wafer cells and is laminated to the default number of plies first to stack,
A stacked wafer cells are finally stacked again forms laminated cell；If the first pole piece is the second pole piece of anode pole piece when being cathode pole piece,
Device for pilling 30 stacks the sequence alternates of stacked wafer cells after the second pole piece 210 and is laminated to the default number of plies first to stack, and finally folds again
It puts second pole piece 210 and forms laminated cell.Two kinds stack one layer of the top of laminated cell that sequence is produced and most
One layer is cathode pole piece below, therefore, can according to the polarity for needing to be arranged the first pole piece and the second pole piece of actual production, with
Determine that device for pilling 30 stacks the sequence of stacked wafer cells and the second pole piece.
In the present embodiment, device for pilling 30 includes: setting the first feeding station 31 on the same circumference, the second feeding work
The 32, first lamination station 33 of position and second lamination station 34.Line between first feeding station 31 and the second feeding station 32
By the center of circle, the line between the first lamination station 33 and second lamination station 34 also passes through the center of circle, and the first feeding station
31 and the second line between feeding station 32 it is vertical with the line between the first lamination station 33 and second lamination station 34, i.e.,
First feeding station 31, the second feeding station 32, the first lamination station 33 and second lamination station 34 are located on same circumference.The
One feeding station 31 is used for the feeding of stacked wafer cells, and the second feeding station 32 is used for the feeding of the second pole piece 210.First lamination work
Position 33 and second lamination station 34 are used to be stacked alternately stacked wafer cells and the second pole piece 210 to form laminated cell.
Further, device for pilling 30 further includes lamination mechanical arm 35, and the both ends of lamination mechanical arm are provided with clamping machine
Structure, respectively the first clamp assemblies 351 and the second clamp assemblies 352, the first clamp assemblies 351 and the second clamp assemblies 352 divide
The second pole piece 210 on the stacked wafer cells and the second feeding station 32 on the first feeding station 31 Yong Yu not clamped.It is understood that
, the first feeding station 31 on the same circumference, the second feeding station 32, the first lamination station 33 and second lamination station
34 form a circle, which is equal to the length of lamination mechanical arm 35, and the midpoint of lamination mechanical arm 35 is located at
On the center of circle of the circle, it is respectively positioned on positioned at first clamp assemblies 351 at lamination mechanical arm both ends and the midpoint of the second clamp assemblies 352
On the circular arc of the circle.
It is shown in Figure 3, for the direction shown in Fig. 3, when lamination mechanical arm 35 is located in horizontal direction, first
Clamp assemblies 351 and the second clamp assemblies 352 clamp stacked wafer cells and the second feeding station on the first feeding station 31 respectively
The second pole piece 210 on 32, after lamination mechanical arm 35 rotates clockwise 90 ° at this time, the first clamp assemblies 351 and the second clamping group
Part 352 discharges stacked wafer cells respectively and arrives second lamination station 34 to the first lamination station 33 and the second pole piece 210 of release；Laminating machine
Tool arm 35 is rotated by 90 ° reset counterclockwise again, and the first clamp assemblies 351 and the second clamp assemblies 352 clamp the first feeding respectively again
The second pole piece 210 on stacked wafer cells and the second feeding station 32 on station 31, lamination mechanical arm 35 are rotated by 90 ° counterclockwise
Afterwards, the first clamp assemblies 351 and the second clamp assemblies 352 discharge stacked wafer cells to second lamination station 34 and release second respectively
The 210 to the first lamination of pole piece station 33；Lamination mechanical arm 35 rotates clockwise 90 ° of resets, and successively reciprocation cycle stacks lamination list
Member and the second pole piece 210.Only reciprocal positive and negative rotation realization stacks movement to lamination mechanical arm 35 in the same circle, improves and stacks
The efficiency of stacked wafer cells and the second pole piece 210, and then improve the production efficiency of production laminated cell.
In the present embodiment, it is provided on the first lamination station 33 and second lamination station 34 for stacked wafer cells and
The fixed mechanism (not shown) that two pole pieces are positioned exists respectively in the first clamp assemblies 351 and the second clamp assemblies 352
First lamination station 33 and second lamination station 35 stack a stacked wafer cells and the second pole piece or the second pole piece and lamination list
After member, fixed mechanism respectively fixes stacked wafer cells and the second pole piece, in order to avoid stacking next stacked wafer cells and the second pole piece
When, the upper stacked wafer cells being located on the first lamination station 33 and second lamination station 34 and upper second pole piece are run
Partially, the quality that rear process is processed into finished product battery core is influenced.About the structure of fixed mechanism, can by any pair of stacked wafer cells and
The fixed mechanical structure of second pole piece realizes that details are not described herein.
Stacked wafer cells producing device 10 makes the process of stacked wafer cells and the second pole piece producer agency 20 makes the second pole piece
210 process is consecutive production, needs stacked wafer cells produced and the second pole piece 210 being placed on the first feeding station
31 and second are kept on feeding station 32, therefore, in combined type lamination device provided by the present embodiment, device for pilling 30
Further include: the first reclaimer robot and the second reclaimer robot.First reclaimer robot is used for from stacked wafer cells producing device 10
Stacked wafer cells are grabbed, and are placed on the first feeding station 31；Second reclaimer robot is used for from the second pole piece manufacturing mechanism 20
The second pole piece 210 is grabbed, and is placed on the second feeding station 32.
With continued reference to shown in Fig. 1, in stacked wafer cells making step 1000, the first pole piece 110 of laminated structure is made
Step is realized particular by the first pole piece producer agency comprising following steps:
The first pole piece coiled strip 100 is unreeled out, then tab is cut to the first pole piece coiled strip 100, will finally cut first after tab
100 fixed length of pole piece coiled strip cuts into the first pole piece 110.
Specifically, unreeling out the first pole piece coiled strip by the first pole piece unwinding assembly 11；Tab component 12 is cut by first again
Tab is cut to the first pole piece coiled strip 100, the mode for cutting tab is preferably that laser cuts tab, and being formed by tab can be positioned at
The side of one pole piece, or the opposite sides positioned at the first pole piece；Finally component 13 is cut to the first pole piece coiled strip by first again
100 fixed length cut the first pole piece 110 to form laminated structure.
In the present embodiment, the first diaphragm 310 is compounded in the first pole piece 110 by two surface dispensings to the first pole piece 110
On a surface for dispensing glue, the second diaphragm 410 is compounded on another surface for dispensing glue of the first pole piece 110, forms lamination list
The step of member is realized particular by diaphragm composite structure comprising following steps: the first diaphragm coiled strip 300 is discharged into the
On the surface for dispensing glue of one pole piece 110；Second diaphragm coiled strip 400 is discharged into another surface for dispensing glue of the first pole piece 110
On；It is by roll-in that the first diaphragm 310, the first pole piece 110 and the second diaphragm 410 is compound；To after compound preceding or compound
One diaphragm 310 and the second diaphragm 410 carry out fixed length and cut.
Specifically, the first diaphragm unwinding assembly 15 discharges the upper table for dispensing glue of first the 300 to the first pole piece of diaphragm coiled strip 110
Face, the second diaphragm unwinding assembly 16 discharge the lower surface for dispensing glue of second the 400 to the first pole piece of diaphragm coiled strip 110.Pass through roll-in group
First diaphragm 310, the first pole piece 110 and the second diaphragm 410 are combined into a monolithic construction by the roll-in of part 17.In roll-in component
Before 17, an also settable heating component, with to after dispensing the first pole piece and positioned at first two surfaces of pole piece first every
Film and the second diaphragm are heated, its rapid curing is made.By diaphragm cut component 18 to first after compound preceding or compound every
Film roll material 300 and 400 fixed length of the second diaphragm coiled strip cut to form the first diaphragm 310 and the second diaphragm 410.When compound preceding fixed
When length is cut, diaphragm cuts the upstream that roll-in component 17 is arranged in component 18；When fixed length is cut after compound, diaphragm cuts group
The downstream of roll-in component 17 is arranged in part 18.
In the present embodiment, the second pole piece making step 2000 is realized particular by the second pole piece producer agency 20, packet
It includes following steps: releasing the second pole piece coiled strip 200；Tab is cut to the second pole piece coiled strip 200；The second pole piece after tab will be cut
200 fixed length of coiled strip cuts to form the second pole piece 210.
Specifically, the second pole piece unwinding assembly 21 releases the second pole piece coiled strip 200.Second cuts tab component 22 to second
Pole piece coiled strip 200 cuts tab, and the mode for cutting tab is preferably that laser cuts tab.Second cuts component 23 to the second pole piece coiled strip
200 fixed length cut to form the second pole piece 210.
In the present embodiment, stacking step 3000 is realized by device for pilling 30, is specifically included:
The sequence alternate of the second pole piece 210 is stacked after stacked wafer cells be laminated to the default number of plies, finally stack again first to stack
One stacked wafer cells forms laminated cell；Alternatively, first to stack the sequence alternate stacking for stacking stacked wafer cells after the second pole piece 210
To the default number of plies, second pole piece 210 is finally stacked again and forms laminated cell.
Specifically, stacked wafer cells are placed on the first feeding station 31, the second pole piece 210 is placed on the second feeding work
Stacked wafer cells and the second pole piece 210 are transferred on the first lamination station 33 by lamination on position 32 simultaneously；Stacked wafer cells are placed on
On first feeding station 31, the second pole piece 210 is placed on the second feeding station 32, by stacked wafer cells and the second pole piece 210
It is transferred to lamination on second lamination station 32 simultaneously.
As above, lamination movement is realized particular by following process: stacked wafer cells are placed on by the first reclaimer robot
On first feeding station 31, after the second pole piece 210 is placed on the second feeding station 32 by the second reclaimer robot, lamination is mechanical
The first clamp assemblies 351 and the second clamp assemblies 352 on arm 35 are distinguished in the first feeding station 31 and the second feeding station 32
Clamp stacked wafer cells and the second pole piece 210, in the first clamp assemblies 351 and the second clamp assemblies 352 respectively by stacked wafer cells and
After the clamping of second pole piece, lamination mechanical arm 35 rotates clockwise 90 °, and stacked wafer cells are transferred on second lamination station 34, will
Second pole piece 210 is transferred on the first lamination station 33, completes to stack movement for the first time, meanwhile, the first lamination station 33 and the
Respectively arranged fixed mechanism fixes the stacked wafer cells stacked for the first time and the second pole piece on two lamination stations 34, prevents lamination
Unit and the second pole piece sideslip.
Lamination mechanical arm 35 is rotated by 90 ° reset counterclockwise again, and the first clamp assemblies 351 and the second clamp assemblies 352 divide again
The second pole piece 210 on the stacked wafer cells and the second feeding station 32 on the first feeding station 31, lamination mechanical arm 35 are not clamped
After being rotated by 90 ° counterclockwise, the first clamp assemblies 351 and the second clamp assemblies 352 discharge stacked wafer cells to second lamination work respectively
Second the 210 to the first lamination of pole piece station 33 of position 34 and release；Lamination mechanical arm 35 rotates clockwise 90 ° of resets again, thus complete
At movement is stacked for the second time, fixed mechanism is again fixed the second pole piece and stacked wafer cells that stack for the second time.It is successively reciprocal
Circulation stacks stacked wafer cells and the second pole piece 210.After stacking to the default number of plies, by the stacked wafer cells stacked and the second pole
The compound mode of the surrounding's rubberizing or hot pressing of piece 210 makes the multi-layer stacks unit stacked and is spaced between adjacent laminates unit
The second pole piece 210 be combined with each other to form laminated cell, complete the production of laminated cell.
Embodiment two,
A kind of stacked wafer cells of the combined type laminated cell of laminating method based on embodiment one are present embodiments provided, are closed
It has been elaborated in example 1 in the production method and equipment of stacked wafer cells, details are not described herein.Below only to lamination list
The structure of member is illustrated.
It is shown in Figure 4, the stacked wafer cells of this combined type laminated cell, comprising: to be cascading from top to bottom
One diaphragm 310, the first pole piece 110 and the second diaphragm 410；First diaphragm 310, the first pole piece 110 and the second diaphragm 410 are in piece
Shape structure；Bonding is provided between first diaphragm 310 and the first pole piece 110, between the first pole piece 110 and the second diaphragm 410
Oxidant layer, the first diaphragm 310, the first pole piece 110 and the second diaphragm 410 are bonded integral, the bonding process by adhesive layer
It can make its rapid curing by way of heating.In the present embodiment, the first pole piece 110 is to cut the pole piece after tab, and tab can
To be located at the side of the first pole piece 110, or the opposite sides positioned at the first pole piece 110；The polarity of first pole piece 110 can be negative
Pole pole piece, is also possible to anode pole piece.
Embodiment three,
The combined type laminated cell for present embodiments providing a kind of laminating method based on embodiment one, about laminated cell
Production method and equipment elaborate in example 1, details are not described herein.Below only to the structure of laminated cell into
Row explanation.
Shown in referring to figs. 5 and 6, this combined type laminated cell, comprising: the m stacked wafer cells being stacked, adjacent two
Second pole piece 210 is provided between a stacked wafer cells, wherein m is the positive integer more than or equal to 2, i.e., every adjacent laminates
It is provided with second pole piece 210 between unit, the second pole piece 210 structure in the form of sheets.Wherein, stacked wafer cells and embodiment two
In mechanism it is identical comprising: the first diaphragm 310, the first pole piece 110 and the second diaphragm being cascading from top to bottom
410, the first diaphragm 310, the first pole piece 110 and the second diaphragm 410 structure in the form of sheets, in the first diaphragm 310 and the first pole piece
Between 110, adhesive layer, the first diaphragm 310, the first pole piece 110 are provided between the first pole piece 110 and the second diaphragm 410
Integral by adhesive layer bonding with the second diaphragm 410, which can make it fast by way of heating
Speed solidification.In the present embodiment, the first pole piece 110 and the second pole piece 210 are the pole piece after cutting tab, and tab can be located at first
The same side or opposite two sides of pole piece 110 and the second pole piece 210 are respectively provided with.
In the present embodiment, the polarity of the first pole piece 110 and the second pole piece 210 is opposite.As shown in figure 5, when the first pole piece 110
For cathode pole piece, when the second pole piece 210 is anode pole piece, one layer of one layer of the bottom of laminated cell and the top are lamination list
Member；As shown in fig. 6, when the first pole piece 110 is anode, when the second pole piece 210 is cathode, one layer of the bottom of laminated cell and most
One layer is the second pole piece 210 above.In other embodiments, 110 He of the first pole piece can be set according to the needs of actual production
The polarity of second pole piece 210.
In the present embodiment, the first pole piece 110 after cutting tab and the tab of the second pole piece 210 after tab is cut in laminated battery
The same side of core, alternatively, cutting the first pole piece 110 after tab and cutting the tab of the second pole piece 210 after tab respectively in lamination
The opposite sides of battery core can be set according to needs of production.
In conclusion in combined type laminated cell provided in this embodiment and its stacked wafer cells and laminating method, using work
The laminating method of skill high concentration laminated cell produced, pole piece is not easy to misplace, diaphragm is not wrinkled, to pole piece and diaphragm
Flexibility requirements are not high, further avoid the generation for leading to the problem of analysis lithium, short circuit.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair
Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.
Claims (10)
1. a kind of laminating method of combined type laminated cell, which comprises the steps of:
Stacked wafer cells making step makes the first pole piece of laminated structure；Two surface dispensings to first pole piece；By
One diaphragm is compounded on the first pole piece surface for dispensing glue, and the second diaphragm is compounded in the first pole piece another surface for dispensing glue
On, form stacked wafer cells；
Second pole piece making step, makes the second pole piece of laminated structure, and the polarity of second pole piece and the first pole piece is opposite；
Step is stacked, is stacked alternately the stacked wafer cells and the second pole piece to form laminated cell.
2. the laminating method of combined type laminated cell as described in claim 1, which is characterized in that the production laminated structure
The step of first pole piece includes:
Unreel out the first pole piece coiled strip；
Tab is cut to the first pole piece coiled strip；
The first pole piece roll after tab will be cut anticipate length and cuts into the first pole piece.
3. the laminating method of combined type laminated cell as described in claim 1, which is characterized in that described to first pole piece
Two surface dispensings；First diaphragm is compounded on the first pole piece surface for dispensing glue, the second diaphragm is compounded in first
On pole piece another surface for dispensing glue, formed stacked wafer cells the step of include:
First diaphragm coiled strip is discharged on the first pole piece surface for dispensing glue；Second diaphragm coiled strip is discharged into the first pole piece
On another surface for dispensing glue；
It is by roll-in that the first diaphragm, the first pole piece and the second diaphragm is compound；
Fixed length is carried out to first diaphragm and second diaphragm after compound preceding or compound to cut.
4. the laminating method of combined type laminated cell as described in claim 1, which is characterized in that the second pole piece production step
Suddenly include:
Release the second pole piece coiled strip；
Tab is cut to the second pole piece coiled strip；
The second pole piece roll after tab will be cut anticipate length and cuts to form the second pole piece.
5. the laminating method of combined type laminated cell as described in claim 1, which is characterized in that the step that stacks specifically is wrapped
It includes:
The sequence alternate of second pole piece is stacked after the stacked wafer cells be laminated to the default number of plies, finally stack again first to stack
One stacked wafer cells forms laminated cell；Alternatively,
The sequence alternates of the stacked wafer cells is stacked after second pole piece be laminated to the default number of plies, finally stack again first to stack
One the second pole piece forms laminated cell.
6. the laminating method of combined type laminated cell as described in claim 1, which is characterized in that the step that stacks specifically is wrapped
It includes:
Stacked wafer cells are placed on the first feeding station, the second pole piece is placed on the second feeding station；
Stacked wafer cells and the second pole piece are transferred to lamination on the first lamination station；
Stacked wafer cells are placed on the first feeding station, the second pole piece is placed on the second feeding station；
Stacked wafer cells and the second pole piece are transferred to lamination on second lamination station；
Wherein, the first feeding station, the second feeding station, the first lamination station and second lamination station are arranged in same circumference
On.
7. a kind of stacked wafer cells of the combined type laminated cell based on laminating method described in claim 1, which is characterized in that packet
It includes: the first diaphragm, the first pole piece and the second diaphragm being cascading from top to bottom；First diaphragm, the first pole piece and
Second diaphragm structure in the form of sheets；Between first diaphragm and the first pole piece, between first pole piece and the second diaphragm
It is provided with adhesive layer, first diaphragm, the first pole piece and the second diaphragm are bonded integral by the adhesive layer.
8. the stacked wafer cells of combined type laminated cell as claimed in claim 7, which is characterized in that first pole piece is to cut pole
Pole piece after ear.
9. a kind of combined type laminated cell based on laminating method described in claim 1 characterized by comprising m stacking
The stacked wafer cells of setting are provided with second pole piece between two adjacent stacked wafer cells, wherein m is more than or equal to 2
Positive integer；Second pole piece structure in the form of sheets；The stacked wafer cells include: be cascading from top to bottom first every
Film, the first pole piece and the second diaphragm；First diaphragm, the first pole piece and the second diaphragm structure in the form of sheets；Described first every
Between film and the first pole piece, adhesive layer, first diaphragm, first are provided between first pole piece and the second diaphragm
Pole piece and the second diaphragm are bonded integral by the adhesive layer；The polarity of first pole piece and the second pole piece is opposite.
10. combined type laminated cell as claimed in claim 9, which is characterized in that first pole piece and the second pole piece are
Pole piece after cutting tab.
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| CN201810834683.9A CN109148967A (en) | 2018-07-26 | 2018-07-26 | Combined type laminated cell and its stacked wafer cells and laminating method |
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| CN201810834683.9A CN109148967A (en) | 2018-07-26 | 2018-07-26 | Combined type laminated cell and its stacked wafer cells and laminating method |
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| CN109921099A (en) * | 2019-02-26 | 2019-06-21 | 深圳吉阳智能科技有限公司 | A kind of laminating equipment |
| CN109950632A (en) * | 2019-03-15 | 2019-06-28 | 苏州迈展自动化科技有限公司 | A kind of preparation method and takeup type laminated batteries of takeup type laminated batteries |
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| CN113140780A (en) * | 2020-01-22 | 2021-07-20 | 钟浪均 | Fold formula of book electricity core and lithium ion battery |
| CN113140804A (en) * | 2020-01-22 | 2021-07-20 | 虞静敏 | Method and equipment for manufacturing lithium ion battery |
| CN112259802A (en) * | 2020-03-31 | 2021-01-22 | 蜂巢能源科技有限公司 | Lithium ion battery lamination method and device |
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| CN112382797A (en) * | 2020-07-17 | 2021-02-19 | 万向一二三股份公司 | Method for laminating sheets |
| CN112271340A (en) * | 2020-09-28 | 2021-01-26 | 江苏塔菲尔新能源科技股份有限公司 | Battery cell and preparation method thereof |
| CN112615061A (en) * | 2021-01-12 | 2021-04-06 | 深圳市格林晟科技有限公司 | Preparation method and stacking device of battery cell |
| CN112615061B (en) * | 2021-01-12 | 2022-12-30 | 深圳市格林晟科技有限公司 | Preparation method and stacking device of battery cell |
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