CN110364767A - A kind of lamination tooling - Google Patents
A kind of lamination tooling Download PDFInfo
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- CN110364767A CN110364767A CN201910674557.6A CN201910674557A CN110364767A CN 110364767 A CN110364767 A CN 110364767A CN 201910674557 A CN201910674557 A CN 201910674557A CN 110364767 A CN110364767 A CN 110364767A
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- Prior art keywords
- positioning
- lamination
- tooling
- negative electrode
- electrode tab
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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
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
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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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention provides a kind of lamination tooling, the closed assembly of pole group applied to power battery, the pole group includes multiple positive plates being stacked with, negative electrode tab and diaphragm, wherein, the diaphragm is isolated between the positive plate and the negative electrode tab, the lamination tooling includes: tooling ontology, and it is located at the positioning device on the tooling ontology, the positioning device includes positioning component, the positioning component has the positioning surface for being connected to pole group side, the positioning surface has variable position in the width direction of the pole group, so that the positioning component can be to the positive plate in lamination, the negative electrode tab and the diaphragm are positioned respectively, lamination tooling provided by the invention, realizing can be to positive plate in lamination, negative electrode tab and diaphragm are positioned, to positive plate during manual lamination, negative electrode tab with The purpose that the degree of registration of diaphragm is guaranteed.
Description
Technical field
The present invention relates to power battery technology field, in particular to a kind of lamination tooling.
Background technique
Power battery be powered tools source battery, Duo Zhiwei electric car, electric train, electric bicycle,
The battery of golf cart offer power.The one kind of lithium ion battery as power battery, complex manufacturing technology.Anode
Piece, negative electrode tab and diaphragm are particularly important as the core of lithium ion battery.
Currently, during the processing procedure of lithium ion battery, it is main by winding or lamination process by positive plate, negative electrode tab and
Diaphragm is combined into battery core, wherein diaphragm is isolated by positive plate and negative electrode tab, while diaphragm coats negative electrode tab, and negative electrode tab coats just
Pole piece, to guarantee that positive sheet lithium ion can penetrate diaphragm insertion negative electrode tab, while negative electrode tab has enough space lithium ions.
Currently, the main combination stacked that positive plate, negative electrode tab and diaphragm are carried out by laminating machine, while can guarantee anode during lamination
Degree of registration between piece, negative electrode tab and diaphragm, prevent during subsequent production because degree of registration it is bad caused by the safety such as battery short circuit
Property problem.For newly developed battery core model, due to the variation of battery core size, pole piece size, existing laminating machine may be by nothing
Method meets the size of new model battery core, and newly purchases or be transformed the cost that laminating machine needs great number, can only pass through manual lamination process
It is produced.
However, for existing lamination tooling, in manual lamination, it is difficult to between positive plate, negative electrode tab and diaphragm
Degree of registration is guaranteed, is easy to cause the safety issues such as battery short circuit during subsequent production.
Summary of the invention
The present invention provides a kind of lamination tooling, and positive plate, negative electrode tab and diaphragm can be determined in lamination by realizing
Position, the purpose that the degree of registration of positive plate, negative electrode tab and diaphragm during manual lamination is guaranteed.
The present invention provides a kind of lamination tooling, and the closed assembly of the pole group applied to power battery, the pole group includes multiple phases
Positive plate, negative electrode tab and the diaphragm mutually stacked, wherein the diaphragm is isolated between the positive plate and the negative electrode tab, institute
The positioning device that lamination tooling includes: tooling ontology and is located on the tooling ontology is stated, the positioning device includes positioning
Component, the positioning component have the positioning surface for being connected to pole group side, width of the positioning surface in the pole group
Spending has variable position on direction so that in lamination the positioning component can to the positive plate, the negative electrode tab and
The diaphragm is positioned respectively.
Lamination tooling as described above optionally, in the tooling ontology is equipped with the accommodating chamber for accommodating the pole group,
The positioning surface can be mobile relative to the accommodating chamber.
Lamination tooling as described above, optionally, the positioning component include the be located on described this body sidewall of tooling
One positioning component and the second positioning component, wherein first positioning component is used for during lamination to the positive plate
It is positioned；Second positioning component is for positioning the negative electrode tab during lamination.
Lamination tooling as described above, optionally, first positioning component include the first locating piece and are located at described
Positioning pin in first locating piece, the side of the positioning pin axially are equipped with positioning convex platform, the end of the positioning convex platform
With the positioning surface, the positioning convex platform is located in the locating slot opened up in first locating piece, and the positioning convex platform
The difference of position in the locating slot and protrude into the accommodating chamber or be located on the outside of the accommodating chamber.
Lamination tooling as described above, optionally, the number of first positioning component are multiple, first positioning
Components distribution is in the ipsilateral or two sides of the tooling ontology；Wherein, on tooling ontology described in second positioning component with institute
The first positioning component is stated to be oppositely arranged.
Lamination tooling as described above, optionally, the positioning convex platform of first positioning component protrudes into the accommodating chamber
Length be greater than second positioning component positioning convex platform protrude into the length in the accommodating chamber.
Lamination tooling as described above is optionally additionally provided in first locating piece for placing the positioning convex platform
Placing groove, the placing groove is connected with the locating slot；
When the positioning surface is protruded into the accommodating chamber, the positioning convex platform is located in the locating slot；The positioning surface
When on the outside of the accommodating chamber, the positioning convex platform is located in the placing groove.
As above any lamination tooling, optionally, the positioning device further include: the second locating piece and third positioning
Part, wherein second locating piece and the third locating piece are oppositely arranged on the tooling ontology, with respectively to it is described just
The end of pole piece and the negative electrode tab is positioned.
Lamination tooling as described above, optionally, second locating piece is located at the first end on the tooling ontology,
And the positioned for the end to the positive plate is equipped with close to the side of the positive plate on second locating piece
One limiting slot；
The third locating piece is located at the second end on the tooling ontology, and the third locating piece is close to described negative
The side of pole piece is equipped with the second limiting slot positioned for the end to the negative electrode tab.
As above any lamination tooling, optionally, the positioning device further include: the first pressing plate and the second pressing plate,
First pressing plate and second pressing plate are at least partly fastened in the tooling ontology, wherein the pole group is located at institute
It states between the first pressing plate and second pressing plate.
The present invention provides a kind of lamination tooling, and the closed assembly of the pole group applied to power battery, the pole group includes multiple phases
Positive plate, negative electrode tab and the diaphragm mutually stacked, wherein the diaphragm is isolated between the positive plate and the negative electrode tab, institute
The positioning device that lamination tooling includes: tooling ontology and is located on the tooling ontology is stated, the positioning device includes positioning
Component, the positioning component have the positioning surface for being connected to pole group side, width of the positioning surface in the pole group
Spending has variable position on direction, the positioning component with stacking process progress, by changing it relative to the tooling
The position of ontology can position respectively the positive plate, the negative electrode tab and the diaphragm in lamination, ensure that hand
The degree of registration of positive plate during work lamination, negative electrode tab and diaphragm can be effectively prevent during subsequent production because lamination is aligned
Spend it is bad caused by the safety problems such as battery short circuit.Therefore, realize can in lamination for lamination tooling provided in this embodiment
Positive plate, negative electrode tab and diaphragm are positioned respectively, to the degree of registration of positive plate during manual lamination, negative electrode tab and diaphragm
The purpose guaranteed solves in the prior art in manual lamination, it is difficult to pair between positive plate, negative electrode tab and diaphragm
The technical issues of Qi Du is guaranteed.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the lamination tooling that the embodiment of the present invention one provides；
Fig. 2 is the structural schematic diagram for the first locating piece that the embodiment of the present invention one provides；
Fig. 3 is the structural schematic diagram one for the first positioning component that the embodiment of the present invention one provides；
Fig. 4 is the structural schematic diagram two for the first positioning component that the embodiment of the present invention one provides；
Fig. 5 is the structural schematic diagram three for the first positioning component that the embodiment of the present invention one provides；
The stacking schematic diagram of positive plate, negative electrode tab and diaphragm that Fig. 6 embodiment of the present invention one provides；
The pole group that Fig. 7 embodiment of the present invention one provides is in the intrinsic stacking schematic diagram of tooling；
Fig. 8 is the assembling schematic diagram of the first pressing plate of the offer of the embodiment of the present invention three, the second pressing plate and pole group；
Fig. 9 is the lamination flow diagram for the lamination tooling that the embodiment of the present invention four provides.
Description of symbols:
1- positive plate；
101- positive pole ear；
102- anode material area；
2- negative electrode tab；
201- negative lug；
202- cathode material area；
3- diaphragm；
4- tooling ontology；
401- accommodating chamber；
The first locating piece of 5-；
501- locating slot；
502- placing groove；
6- positioning pin；
601- positioning convex platform；
6011- positioning surface；
The second locating piece of 7-；
The first limiting slot of 701-；
8- third locating piece；
The second limiting slot of 801-；
The first pressing plate of 9-；
The first notch of 901-；
The first operation portion of 902-；
The second pressing plate of 10-；
The second notch of 1001-；
The second operation portion of 1002-.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Currently, the combination of positive plate 1, negative electrode tab 2 and diaphragm 3 is carried out frequently with laminating machine during the stacking of battery core
It stacks, can guarantee the degree of registration during lamination between positive plate 1, negative electrode tab 2 and diaphragm 3.However for newly developed battery core
Model, due to the variation of its battery core size, pole piece size, existing laminating machine may will be unable to the ruler for meeting new model battery core
It is very little, and the cost that laminating machine needs great number is newly purchased or is transformed, it can only be in such a way that existing lamination tooling be using manual lamination
Carry out the stacking of pole group.However, for existing lamination tooling, in manual lamination, it is difficult to positive plate 1, negative electrode tab 2 with every
Degree of registration between film 3 is guaranteed, is easy to cause the safety issues such as battery short circuit during subsequent production.For this purpose, this
Invention provides a kind of lamination tooling, and degree of registration when solving manual lamination between positive plate 1, negative electrode tab 2 and diaphragm 3 is difficult to protect
The technical issues of card.
Embodiment one
Fig. 1 is the structural schematic diagram for the lamination tooling that the embodiment of the present invention one provides, and Fig. 2 is that the embodiment of the present invention one provides
The first locating piece structural schematic diagram, Fig. 3 be the embodiment of the present invention one provide the first positioning component structural schematic diagram one,
Fig. 4 is the structural schematic diagram two for the first positioning component that the embodiment of the present invention one provides, and Fig. 5 is that the embodiment of the present invention one provides
The stacking of the structural schematic diagram three of first positioning component, positive plate, negative electrode tab and diaphragm that Fig. 6 embodiment of the present invention one provides is shown
It is intended to, the pole group that Fig. 7 embodiment of the present invention one provides is in the intrinsic stacking schematic diagram of tooling.
As shown in Figure 1, the present embodiment provides a kind of lamination tooling, the closed assembly of the pole group applied to power battery, pole group packet
Including multiple positive plates 1 being stacked with, negative electrode tab 2 and diaphragm 3, wherein diaphragm 3 is isolated between positive plate 1 and negative electrode tab 2,
Lamination tooling includes: tooling ontology 4 and the positioning device that is located on tooling ontology 4, and positioning device includes positioning component, fixed
Hyte part has the positioning surface 6011 for being connected to pole group side, and positioning surface 6011 has variable in the width direction of pole group
Position so that positioning component can position respectively positive plate 1, negative electrode tab 2 and diaphragm 3 in lamination.
Wherein, in the present embodiment, due to pole group be multiple positive plates 1 being stacked with, negative electrode tab 2 and diaphragm 3 stack and
At the layer structure with certain number of plies, battery is connected to form with structural members such as the shells of battery, therefore, with stacking
The progress of journey, the thickness that positive plate 1, negative electrode tab 2 and diaphragm 3 stack in tooling ontology 4 is increasing, in the present embodiment, with
The progress of stacking process, positioning component can be by changing its position relative to tooling ontology 4, such as: height, in lamination
It is connected to the side of pole group by positioning surface 6011, positive plate 1, negative electrode tab 2 and diaphragm 3 can be positioned respectively, guarantees
The degree of registration of positive plate 1 during manual lamination, negative electrode tab 2 and diaphragm 3, can effectively prevent during subsequent production because folding
The safety problems such as battery short circuit caused by piece degree of registration is bad.
Wherein, in the present embodiment, as shown in Figure 1, the accommodating chamber 401 for accommodating pole group is equipped in tooling ontology 4, folded
During piece, positioning component can be mobile relative to accommodating chamber 401, when pole in the progress of the process with lamination, accommodating chamber 401
Group thickness it is more and more thicker, can be changed by least partly running fix component positioning component relative to accommodating chamber 401
Position realize the positioning to pole group side, in the present embodiment, can by will at least partly running fix component it is opposite
The positioning realized by positioning surface 6011 to pole group side is moved up and down in accommodating chamber 401.
Wherein, in the present embodiment, as shown in Fig. 1, Fig. 6 and Fig. 7, during stacking, positive plate 1, negative electrode tab 2 and every
Film 3 is stacked in the accommodating chamber 401 in tooling ontology 4, with the progress of stacking process, pole group in accommodating chamber 401
Thickness is increasing, the present embodiment, positioning component can by by the component to play the role of positioning in positioning component relative to tooling
Ontology 4 carries out in-migration satisfaction and positions respectively in lamination to positive plate 1, negative electrode tab 2 and diaphragm 3, guarantees manual lamination
In the process positive plate 1, negative electrode tab 2 and diaphragm 3 degree of registration.
Wherein, in the present embodiment, as shown in Figure 6 and Figure 7, positive plate 1 includes positive pole ear 101 and anode material area 102, is born
Pole piece 2 includes negative lug 201 and cathode material area 202, and during stacking, diaphragm covering diaphragm 3 is covered on anode material area
102 and cathode material area 202 on, and the length of diaphragm be all larger than anode material area 102 and cathode material area 202 length and be respectively less than just
The total length of pole piece 1 and negative electrode tab 2, therefore, positive pole ear 101 and negative lug at least partly expose to diaphragm 3.
It should be noted that Fig. 7 is merely to better illustrate positive plate 1, negative electrode tab 2 and 3 end of diaphragm and tooling
Therefore relative positional relationship does not embody positioning component in Fig. 7, about position of the positioning component on tooling ontology
The relationship of setting can refer to Fig. 1.
Wherein, in the present embodiment, as shown in Figure 6 and Figure 7, due to the width of pole group septation 3, negative electrode tab 2 and positive plate 1
It is sequentially reduced, therefore, in the present embodiment, in order to play certain positioning action, the width and diaphragm 3 of accommodating chamber 401 to diaphragm 3
Width it is equal, the width direction of diaphragm 3 can be positioned, by the end of accommodating chamber 401 on tooling ontology 4 to diaphragm
3, the end of positive plate 1 and negative electrode tab 2 is positioned.
Wherein, in the present embodiment, in order to realize that the end to diaphragm 3, positive plate 1 and negative electrode tab 2 positions, Ke Yitong
The corresponding card of end setting and structure for crossing the accommodating chamber 401 on tooling ontology 4 are positioned, wherein card and structure include but
It is not limited only to be equipped with the card and structure of card slot at the end opposite position with diaphragm 3, positive plate 1 and negative electrode tab 2；Wherein,
In the present embodiment, card and structure can be in the end of tooling ontology 4 and the structure integrally formed with tooling ontology 4, Ka Hejie
Structure can also tooling ontology 4 end and be detachably connected with tooling ontology 4.Wherein, in the present embodiment, for card and structure
It is not further qualified, need to only meet can position the end of diaphragm 3, positive plate 1 and negative electrode tab 2 by card and structure
?.
Wherein, in the present embodiment, as shown in Fig. 1, Fig. 6 and Fig. 7, positioning component includes being respectively provided at 4 side wall of tooling ontology
On the first positioning component and the second positioning component, wherein the first positioning component be used for during lamination to positive plate 1 into
Row positioning；Second positioning component is for positioning negative electrode tab 2 during lamination.
Wherein, in the present embodiment, as shown in Figure 1, the first positioning component and the second positioning component are located at 4 side wall of tooling ontology
Upper i.e. the first positioning component and the second positioning component are located at the side wall of accommodating chamber 401, are positioned by the first positioning component and second
Component respectively positions positive plate 1 and negative electrode tab 2 during lamination, to ensure positive plate 1 during manual lamination, negative
The degree of registration of pole piece 2 and diaphragm 3.
Wherein, in the present embodiment, as shown in Figures 1 to 5, the first positioning component includes the first locating piece 5 and is located at the
Positioning pin 6 in positioning piece 5, the side of positioning pin 6 axially are equipped with positioning convex platform 601, and the end of positioning convex platform 601 has
Have a positioning surface 6011, be equipped with locating slot 501 in the first locating piece 5, and positioning convex platform 601 have in locating slot 501 it is variable
Position, positioning surface with positioning convex platform 601 in locating slot 501 difference of position and protrude into accommodating chamber 401 or be located at and accommodate
401 outside of chamber, to be positioned to positive plate 1.
Wherein, in the present embodiment, by the corresponding card of end setting and knot that adjust the accommodating chamber 401 on tooling ontology 4
Structure, so that positive plate 1 is in center in accommodating chamber 401.On the basis of above-mentioned, due to negative electrode tab 2 and positive plate 1
Width is less than the width of diaphragm 3, in order to ensure positive plate 1 is further positioned during stacking, such as Fig. 3 and Fig. 4
Shown, the outermost positioning surface 6011 of positioning convex platform 601 need to protrude into accommodating chamber 401, be determined with the side wall to positive plate 1
Position, to realize the positioning to positive plate 1.In the present embodiment, as shown in Figure 3 and Figure 4, positioning pin 6 is located at the first locating piece 5
Interior, with the progress of stacking process, the thickness of pole group constantly increases in accommodating chamber 401, for the positive plate 1 to pole group upper end
It is positioned, the present embodiment is by moving up and down positioning pin 6, correspondingly, the outermost positioning surface 6011 of positioning convex platform 601
It can move up and down, be determined by the positioning surface 6011 of 601 end of positioning convex platform with the side wall to the positive plate 1 that need to be positioned therewith
Position, to avoid influencing lamination because of pole group thickness change.
Wherein, in the present embodiment, the first locating piece 5 can for certain thickness locating piece or other can open up
The structure of locating slot 501 and holding locating pin 6, i.e., the first locating piece 5 includes but are not limited to locating piece in the present embodiment.
Wherein, in the present embodiment, the first locating piece 5 can be detachably connected with tooling ontology 4, and the first locating piece 5 can also
With with 4 being connected to one structure of tooling ontology, i.e., the connection side of the first locating piece 5 and tooling ontology 4 in the present embodiment
Formula includes but are not limited to be detachably connected.In the present embodiment, the detachable connection method of the first locating piece 5 and tooling ontology 4
It includes but are not limited to connect by fastener, wherein fastener includes bolt or screw.
Wherein, in the present embodiment, as shown in Figure 1, the first positioning component is distributed in the ipsilateral or two sides of tooling ontology 4,
Wherein, the structure of the second positioning component and the first positioning component is identical, and the second positioning component is fixed with first on tooling ontology 4
Hyte part is oppositely arranged.
Wherein, in the present embodiment, as shown in Figure 1, in order to play to the better locating effect of positive plate 1, the first positioning group
The number of part be it is multiple, when the number of the first positioning component be it is multiple when, the first positioning component can be distributed in tooling ontology 4
It is ipsilateral, unilateral operation when convenient for positioning to positive plate 1, the first positioning component can also be distributed in the two sides of tooling ontology 4,
And arrange close to 1 one end of positive plate, the two sides of positive plate 1 are positioned by the positioning convex platform 601 of 4 two sides of tooling ontology.
Wherein, when the first positioning component is multiple, the present embodiment, the first positioning component is preferably distributed in the ipsilateral of tooling ontology 4, protects
While card positions positive plate 1, operator is facilitated to control and operate from unilateral.
Wherein, in the present embodiment, as shown in Figure 1, the second positioning component is identical as the structure of the first positioning component, implementing
In example, no longer the structure of the second positioning component is further detailed, negative electrode tab 2 is positioned by the second positioning component
Process can refer to the position fixing process by the first positioning component to positive plate 1.The present embodiment, when the first positioning component is distributed in work
Fill ontology 4 it is ipsilateral when, the second positioning component is distributed in side opposite with the first positioning component on tooling ontology 4；When first
When positioning component is distributed in the two sides of tooling ontology 4, the second positioning component is distributed in the two sides of tooling ontology 4 and close to negative electrode tab
It arranges 2 one end.Wherein, in the present embodiment, since the width of positive plate 1 is less than the width of negative electrode tab 2, in order to guarantee to just
The locating effect of the side wall of pole piece 1, the positioning convex platform 601 of the first positioning component protrude into the length in accommodating chamber 401 greater than second
The positioning convex platform 601 of positioning component protrudes into the length in accommodating chamber 401,
Wherein, in the present embodiment, the positioning convex platform 601 of the first positioning component protrudes into the length in accommodating chamber 401 and is greater than the
The positioning convex platform 601 of two positioning components protrudes into the length in accommodating chamber 401, that is to say, that in the present embodiment, the first positioning component
The length of inner sidewall of the prominent tooling ontology 4 of positioning convex platform 601 be greater than the prominent tooling of positioning convex platform 601 of the second positioning component
The length of the inner sidewall of ontology 4.Therefore, the prominent tooling of positioning convex platform 601 in the present embodiment, in order to guarantee the first positioning component
The length of the inner sidewall of ontology 4 is greater than the length of the inner sidewall of the prominent tooling ontology 4 of positioning convex platform 601 of the second positioning component,
It can also be led to by the groove depth of locating slot 501 in the first locating piece 5 in the first positioning component of adjusting or the second positioning component
The length of positioning convex platform 601 in the first positioning component and the second positioning component is overregulated, in the present embodiment, only needs to guarantee
The positioning convex platform 601 that the length that the positioning convex platform 601 of first positioning component protrudes into accommodating chamber 401 is greater than the second positioning component is stretched
Enter the length in accommodating chamber 401.
Wherein, it in the present embodiment, as shown in Figures 1 to 5, is additionally provided in the first locating piece 5 for placement positioning boss 601
Placing groove 502, placing groove 502 is connected with locating slot 501；When positioning surface 6011 is protruded into accommodating chamber 401, positioning convex platform
601 are located in locating slot 501；When positioning surface 6011 is located at 401 outside of accommodating chamber, positioning convex platform 601 is located in placing groove 502.
The present embodiment, when needing to position positive plate 1 or negative electrode tab 2, positioning convex platform 601 is located in locating slot 501, and positions
Face 6011 is protruded into accommodating chamber 401 and is positioned to the side of positive plate 1 or negative electrode tab 2, conversely, when without to positive plate 1 or
When the side of negative electrode tab 2 is positioned, the positioning convex platform 601 of positioning pin 6 is located in placing groove 502, and positioning surface 6011, which is located at, to be held
It receives on the outside of chamber 401, prevents the stacking for influencing other components in the group of pole.
Wherein, in the present embodiment, as shown in Figures 1 to 5, placing groove 502 is vertically arranged with locating slot 501, and positioning pin 6
In the intersection of placing groove 502 and locating slot 501, positioning convex platform 601 is located in locating slot 501 or placing groove 502, i.e. this implementation
Example, the first locating piece 5 are additionally provided with the cavity body structure for holding locating pin 6 in the intersection of placing groove 502 and locating slot 501,
The shape of the cavity body structure is adapted with the structure of positioning pin 6.
Wherein, in the present embodiment, the structure of locating slot 501 and placing groove 502 is mutually fitted with the structure of positioning convex platform 601
Match, in the present embodiment, the preferred strip structure of positioning convex platform 601, locating slot 501 and placing groove 502 are also strip structure.
Wherein, in the present embodiment, as shown in Figures 1 to 5, positioning convex platform 601 and positioning pin 6 are that integration forms structure.
In the present embodiment, positioning pin 6 and positioning convex platform 601 be set in the first locating piece 5 and with the placing groove 502 in the first locating piece 5
Or locating slot 501 is in clearance fit.
Wherein, as shown in Figures 1 to 5, for the ease of preferably being identified to the first positioning component and the second positioning component, this
In embodiment, positive and negative anodes symbol is respectively equipped on the first positioning component and the second positioning component, wherein positive and negative anodes symbol can be excellent
On the positioning pin 6 of choosing the first positioning component of setting and the second positioning component.In addition to this, the present embodiment can also be by changing the
The size of one positioning component and the second positioning component, as made the size of the first positioning component be slightly larger than the second positioning component
Size can avoid that positioning pin 6 is misplaced position due to staff's misoperation.
Therefore, a kind of lamination tooling provided in this embodiment, the closed assembly of the pole group applied to power battery, pole group include more
A positive plate 1 being stacked with, negative electrode tab 2 and diaphragm 3, wherein diaphragm 3 is isolated between positive plate 1 and negative electrode tab 2, lamination
Tooling includes: tooling ontology 4 and the positioning device that is located on tooling ontology 4, and positioning device includes positioning component, positioning group
Part has the positioning surface 6011 for being connected to pole group side, and positioning surface 6011 has variable position in the width direction of pole group
It sets, which can be in lamination by changing its position relative to tooling ontology 4 with the progress of stacking process
Positive plate 1, negative electrode tab 2 and diaphragm 3 are positioned respectively, ensure that positive plate 1 during manual lamination, negative electrode tab 2 with every
The degree of registration of film 3 can be effectively prevent during subsequent production because the safety such as battery short circuit is asked caused by lamination degree of registration is bad
Topic.Therefore, lamination tooling provided in this embodiment, which is realized, can carry out positive plate 1, negative electrode tab 2 and diaphragm 3 in lamination
Positioning solves existing the purpose that the degree of registration of positive plate 1, negative electrode tab 2 and diaphragm 3 during manual lamination is guaranteed
In technology in manual lamination, it is difficult to which the technology guaranteed the degree of registration between positive plate 1, negative electrode tab 2 and diaphragm 3 is asked
Topic.
Embodiment two
Further, as shown in Figure 1, the difference is that, in the present embodiment, positioning device is also wrapped with above-described embodiment
It includes: the second locating piece 7 and third locating piece 8, wherein the second locating piece 7 and third locating piece 8 are set relatively on tooling ontology 4
It sets, is positioned with the end respectively to positive plate 1 and negative electrode tab 2.
Wherein, in the present embodiment, the end of positive plate 1 and diaphragm 3 is positioned by the second locating piece 7, passes through
Three locating pieces 8 position the end of negative electrode tab 2 and diaphragm 3, with guarantee positive plate 1 during manual lamination, negative electrode tab 2 with
The degree of registration of diaphragm 3.
Wherein, in the present embodiment, as shown in Figure 1, the second locating piece 7 is located at the first end on tooling ontology 4, and second
The first limiting slot 701 positioned for the end to positive plate 1, anode are equipped on locating piece 7 close to the side of positive plate 1
The positive pole ear 101 of 1 end of piece is located in the first limiting slot 701, is determined by the first limiting slot 701 1 end of positive plate
Position, realizes the positioning in lamination to 1 length and width direction of positive plate in conjunction with the first positioning component；
Third locating piece 8 is located at the second end on tooling ontology 4, and third locating piece 8 is set close to the side of negative electrode tab 2
There is the second limiting slot 801 positioned for the end to negative electrode tab 2, the negative lug 201 of 2 end of negative electrode tab is located at second
In limiting slot 801,2 end of negative electrode tab is positioned by the second limiting slot 801, is realized in conjunction with the second positioning component folded
To the positioning in 2 length and width direction of negative electrode tab when piece.
Wherein, in the present embodiment, as shown in Figure 1, the number of the second locating piece 7 is two, it is located at tooling ontology 4
The two sides of first end, and by the first limiting slot 701 of two the second locating pieces 7 respectively to the two sides of 1 end of positive plate into
Row positioning；Correspondingly, the number of third locating piece 8 is two, the two sides of 4 the second end of tooling ontology are located at, and logical
The second limiting slot 801 for crossing two third locating pieces 8 respectively positions the two sides of 2 end of negative electrode tab.
Wherein, in the present embodiment, as shown in Figure 1, the cross sectional shape of the first limiting slot 701 and the second limiting slot 801 is preferred
For L-shaped structure.
Wherein, as shown in Figure 1, in order to preferably be identified to the second locating piece 7 and third locating piece 8, the present embodiment
In, positive and negative anodes symbol is respectively equipped on the second locating piece 7 and third locating piece 8.
Wherein, in the present embodiment, the second locating piece 7 and third locating piece 8 can be locating piece, or other can
The structure of positioning action is played to the end of positive plate 1, negative electrode tab 2 and diaphragm 3, i.e., in the present embodiment, 7 He of the second locating piece
Third locating piece 8 includes but are not limited to locating piece.
Wherein, in the present embodiment, since both ends of the diaphragm 3 on the direction of length are by chance located at positive pole ear 101
At negative lug 201, and diaphragm 3 is more wider than positive plate 1 and negative electrode tab 2, therefore, the both ends of diaphragm 3 respectively with positive pole ear
Between 101 and negative lug 201 formed a L shape sunk structure, therefore, by the end of one end of the first limiting slot 701, with
And second the end of one end of limiting slot 801 diaphragm 3 can be positioned on the length direction of diaphragm 3.
Wherein, in the present embodiment, tab is the metallic conductor for extracting positive and negative anodes from the group of pole, that is to say, that anode
Tab 101 and negative lug 201 are the contact point when battery carries out charge and discharge, in the present embodiment, anode ear and cathode pole
Ear 201 refers respectively to positive plate 1 and the end construction exposed relative to the end of diaphragm 3 of negative electrode tab 2.
Embodiment three
Fig. 8 is the assembling schematic diagram of the first pressing plate of the offer of the embodiment of the present invention three, the second pressing plate and pole group.
Further, on the basis of the above embodiments, as shown in figure 8, in the present embodiment, positioning device further include: the
One pressing plate 9 and the second pressing plate 10, the first pressing plate 9 and the second pressing plate 10 are at least partly fastened in tooling ontology 4, wherein pole
Group is between the first pressing plate 9 and the second pressing plate 10, and in the present embodiment, the first pressing plate 9 and the second pressing plate 10 are located at pole group
Above and below, pole group is pressed between the first pressing plate 9 and the second pressing plate 10.
Wherein, in the present embodiment, as shown in figure 8, the both ends of the first pressing plate 9 be equipped with respectively with the first limiting slot 701 and the
Compatible first notch 901 of two limiting slot 801, the both ends of the second pressing plate 10 be equipped with respectively with the first limiting slot 701 and second
Compatible second notch 1001 of limiting slot 801, before pole group is stacked in the accommodating chamber 401 in tooling ontology 4, first
Pressing plate 9 by first notch 901 at its both ends respectively with the first limiting slot 701 and the second limiting slot 801 card and, so that first presses
Plate 9 blocks and in tooling ontology 4；After pole group stacks completion, similarly, the second pressing plate 10 passes through second notch at its both ends
1001 respectively with the first limiting slot 701 and the second limiting slot 801 card and, so that the second pressing plate 10 block and in tooling ontology 4, and
Second pressing plate 10 is located on the group of pole, pole group is fixed between the first pressing plate 9 and the second pressing plate 10 to compress pole group, then hand
Work level takes out top board, lower platen and pole group, since top board and lower platen compress pole group and carry out hot pressing jointly, can prevent pole
Group shifts during being moved to hot pressing station and influences degree of registration, can be by the monolithic in the group of pole just finally by hot-press equipment
Negative electrode tab 2 and diaphragm 3 are sticked together, and the positive plate 1, negative electrode tab 2 and diaphragm 3 after hot pressing will not cause pair shifting
Its is bad.
Wherein, in the present embodiment, as shown in figure 8, for the ease of the first pressing plate 9 and the second pressing plate 10 from tooling ontology 4
Level is taken out, and the end at 10 both ends of the first pressing plate 9 and the second pressing plate is fixed respectively along two the second locating pieces 7 and two thirds
Space between the part 8 of position respectively extends to the outside of tooling ontology 4, forms the first operation portion 902, second pressure of the first pressing plate 9
Second operation portion 1002 of plate 10 passes through the first operation portion when needing to take out the first pressing plate 9 and 10 level of the second pressing plate
902 and second operation portion 1,002 first pressing plate 9, the second pressing plate 10 and pole group level can be taken out.
Wherein, in the present embodiment, the first operation portion 902 and the second operation portion 1002 are pressed with the first pressing plate 9 and second respectively
10 being formed as one structure of plate.
It should be noted that the present embodiment is during hot pressing, due to top board and lower platen compress pole group jointly into
Row hot pressing, therefore, pole group are in stationary state always and are fixed without other fixed forms, such as: using and tape
It is fixed, can be improved production efficiency, while uneven thickness influences hot pressing effect after the group hot pressing of pole caused by can avoid because of rubberizing
With subsequent electrolyte effect of impregnation.
Example IV
Fig. 9 is the lamination flow diagram for the lamination tooling that the embodiment of the present invention four provides.
Further, on the basis of the above embodiments, as shown in Figures 6 to 9, the present embodiment provides a kind of lamination toolings
Laminating method, the laminating method is as follows:
Step 101: the positioning pin 6 of the first positioning component and the second positioning component being placed in placing groove 502, in tooling
A piece of diaphragm 3 is placed in ontology 4, and diaphragm 3 is positioned by the accommodating chamber 401 of tooling ontology 4；
Step 102: the positioning pin 6 of the second positioning component being placed in locating slot 501, is placed in tooling ontology 4 a piece of
Negative electrode tab 2 positions negative electrode tab 2 by the positioning pin 6 of the second positioning component and the second end of tooling ontology 4；
Step 103: the positioning pin 6 of the second positioning component being placed in placing groove 502, places one in tooling ontology 4
Piece diaphragm 3；
Step 104: the positioning pin 6 of the first positioning component being placed in locating slot 501, is placed in tooling ontology 4 a piece of
Positive plate 1 positions positive plate 1 by the positioning pin 6 of the first positioning component and the first end of tooling ontology 4；
Step 105: the positioning pin 6 of the first positioning component being placed in placing groove 502, is placed in tooling ontology 4 a piece of
Diaphragm 3；
Step 106: successively being stacked in the order described above, until reaching the lamination number of plies of pole group.
It should be noted that under normal conditions, the requirement of pole group lamination are as follows: 3 → cathode of diaphragm → diaphragm 3 → anode → every
3 → cathode of film → diaphragm 3 → anode ..., then successively carries out lamination in the order described above, and therefore, the pole group of the present embodiment is folded
Piece sequence follows the lamination requirement of pole group under normal conditions.
Wherein, in the present embodiment, the positive and negative anodes lamination number of plies can be depending on the battery core design parameter of power battery, according to folded
The piece number of plies successively carries out lamination as above.
Wherein, in the present embodiment, the first positioning component and the second positioning component pass through change with the progress of stacking process
Its height relative to tooling ontology 4 can be carried out while be positioned to positive plate 1, negative electrode tab 2 and diaphragm 3 in lamination, guarantee
The degree of registration of positive plate 1 during manual lamination, negative electrode tab 2 and diaphragm 3, can effectively prevent during subsequent production because folding
The safety problems such as battery short circuit caused by piece degree of registration is bad.
Wherein, in the present embodiment, lamination compresses pole group by the first pressing plate 9 and the second pressing plate 10 after completing and carries out hot pressing,
Hot-press equipment can by the group of pole monolithic positive/negative plate 2 and diaphragm 3 be sticked together, positive/negative plate 2 and diaphragm 3 will not after hot pressing
It shifts again and effectively avoids the occurrence of pole group degree of registration is undesirable, further prevent in subsequent process because right
Qi Du is bad to cause the safety issues such as battery short circuit.After the hot pressing is completed, retrieval the first pressing plate 9 and the second pressing plate 10 are put back to
In tooling ontology 4, continue the manual lamination of next pole group.
It should be noted that much more a piece of negative electrode tab is than positive plate in the group of pole in the present embodiment, the quantity of diaphragm is positive plate
Add one again with the sum of negative electrode tab quantity.
Lamination tooling provided in this embodiment and laminating method are realized can be to positive plate 1,2 and of negative electrode tab in lamination
Diaphragm 3 is positioned, to the purpose that the degree of registration of positive plate 1, negative electrode tab 2 and diaphragm 3 during manual lamination is guaranteed, solution
It has determined in the prior art in manual lamination, it is difficult to which the degree of registration between positive plate 1, negative electrode tab 2 and diaphragm 3 is guaranteed
Technical problem.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instructions such as " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " includes " used herein and " having " and they
Any deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, being
System, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or
For the intrinsic other step or units of these process, methods, product or equipment.
Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. should do broad sense reason
Solution, such as may be a fixed connection, it may be a detachable connection, or be integrally formed；It can be directly connected, can also pass through
Intermediary is indirectly connected, and can make the connection inside two elements or the interaction relationship of two elements.For this field
Those of ordinary skill for, the specific meanings of the above terms in the present invention can be understood according to specific conditions.In addition, term
" first ", " second " etc. are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute
The quantity of the technical characteristic of instruction.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of lamination tooling, the closed assembly of the pole group applied to power battery, the pole group include multiple anodes being stacked with
Piece, negative electrode tab and diaphragm, wherein the diaphragm is isolated between the positive plate and the negative electrode tab, which is characterized in that described
Lamination tooling includes: tooling ontology and the positioning device that is located on the tooling ontology, and the positioning device includes positioning group
Part, the positioning component have the positioning surface for being connected to pole group side, width of the positioning surface in the pole group
There is variable position, so that the positioning component can be to the positive plate, the negative electrode tab and institute in lamination on direction
Diaphragm is stated to be positioned respectively.
2. lamination tooling according to claim 1, which is characterized in that be equipped in the tooling ontology for accommodating the pole
The accommodating chamber of group, the positioning surface can be mobile relative to the accommodating chamber.
3. lamination tooling according to claim 2, which is characterized in that the positioning component includes being located at the tooling ontology
The first positioning component and the second positioning component on side wall, wherein first positioning component is for right during lamination
The positive plate is positioned；Second positioning component is for positioning the negative electrode tab during lamination.
4. lamination tooling according to claim 3, which is characterized in that first positioning component include the first locating piece,
And the positioning pin in first locating piece, the side of the positioning pin axially is equipped with positioning convex platform, described fixed
The end of position boss has the positioning surface, and the positioning convex platform is located in the locating slot opened up in first locating piece, and
The positioning convex platform has variable position in the locating slot, and the positioning surface is with the positioning convex platform in the locating slot
The difference of interior position and protrude into the accommodating chamber or be located on the outside of the accommodating chamber.
5. lamination tooling according to claim 4, which is characterized in that the number of first positioning component be it is multiple,
First positioning component is distributed in the ipsilateral or two sides of the tooling ontology；Wherein, second positioning component is described
It is oppositely arranged on tooling ontology with first positioning component.
6. lamination tooling according to claim 4, which is characterized in that the positioning convex platform of first positioning component protrudes into institute
State the length that the length in accommodating chamber is protruded into greater than the positioning convex platform of second positioning component in the accommodating chamber.
7. lamination tooling according to claim 4, which is characterized in that be additionally provided in first locating piece for placing
The placing groove of positioning convex platform is stated, the placing groove is connected with the locating slot；
When the positioning surface is protruded into the accommodating chamber, the positioning convex platform is located in the locating slot；The positioning surface is located at
When on the outside of the accommodating chamber, the positioning convex platform is located in the placing groove.
8. any lamination tooling in -7 according to claim 1, which is characterized in that the positioning device further include: second
Locating piece and third locating piece, wherein second locating piece and the third locating piece are set relatively on the tooling ontology
It sets, is positioned with the end respectively to the positive plate and the negative electrode tab.
9. lamination tooling according to claim 8, which is characterized in that second locating piece is located on the tooling ontology
First end, and on second locating piece close to the positive plate side be equipped with for the end to the positive plate into
First limiting slot of row positioning；
The third locating piece is located at the second end on the tooling ontology, and the third locating piece is close to the negative electrode tab
Side be equipped with the second limiting slot for being positioned for the end to the negative electrode tab.
10. any lamination tooling in -7 according to claim 1, which is characterized in that the positioning device further include: first
Pressing plate and the second pressing plate, first pressing plate and second pressing plate are at least partly fastened in the tooling ontology, wherein
The pole group is between first pressing plate and second pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674557.6A CN110364767B (en) | 2019-07-25 | 2019-07-25 | Lamination frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910674557.6A CN110364767B (en) | 2019-07-25 | 2019-07-25 | Lamination frock |
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| CN110364767B CN110364767B (en) | 2021-01-26 |
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| CN201910674557.6A Active CN110364767B (en) | 2019-07-25 | 2019-07-25 | Lamination frock |
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| CN112053326A (en) * | 2020-08-13 | 2020-12-08 | 无锡先导智能装备股份有限公司 | Method, system, device and equipment for detecting alignment degree of battery cell |
| DE102021128348A1 (en) | 2021-10-29 | 2023-05-04 | Volkswagen Aktiengesellschaft | Method and device for laminating battery cell components |
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| Publication number | Publication date |
|---|---|
| CN110364767B (en) | 2021-01-26 |
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Address after: 213000 No. 8899, Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: SVOLT Energy Technology Co.,Ltd. Address before: 213000 168 Huacheng Road, Jintan District, Changzhou, Jiangsu Patentee before: SVOLT Energy Technology Co.,Ltd. |