CN110364767B - Lamination frock - Google Patents
Lamination frock Download PDFInfo
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- CN110364767B CN110364767B CN201910674557.6A CN201910674557A CN110364767B CN 110364767 B CN110364767 B CN 110364767B CN 201910674557 A CN201910674557 A CN 201910674557A CN 110364767 B CN110364767 B CN 110364767B
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- positioning
- lamination
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- 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 invention provides a lamination tool, which is applied to the lamination of a pole group of a power battery, wherein the pole group comprises a plurality of positive plates, negative plates and diaphragms which are mutually stacked, the diaphragms are isolated between the positive plates and the negative plates, and the lamination tool comprises: the tool body and the positioning device arranged on the tool body are provided with positioning components, the positioning components are provided with positioning surfaces which are abutted against the side of the pole group, and the positioning surfaces have variable positions in the width direction of the pole group, so that the positioning components can respectively position the positive plate, the negative plate and the diaphragm during lamination.
Description
Technical Field
The invention relates to the technical field of power batteries, in particular to a lamination tool.
Background
The power battery is a battery for providing a power source for tools, and is a storage battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts. The lithium ion battery is one of the power batteries, and the manufacturing process is complex. The positive plate, the negative plate and the diaphragm are particularly important as the core of the lithium ion battery.
At present, in the process of manufacturing a lithium ion battery, a positive plate, a negative plate and a diaphragm are mainly combined into a battery cell through a winding or lamination process, wherein the positive plate and the negative plate are isolated by the diaphragm, the diaphragm covers the negative plate, the negative plate covers the positive plate, so that it is ensured that lithium ions in the positive plate can penetrate through the diaphragm and be embedded into the negative plate, and meanwhile, the negative plate has enough space to accommodate the lithium ions. At present, the combination of a positive plate, a negative plate and a diaphragm is mainly stacked through a laminating machine, and meanwhile, the alignment degree among the positive plate, the negative plate and the diaphragm can be ensured in the laminating process, so that the safety problems of battery short circuit and the like caused by poor alignment degree in the subsequent production process are prevented. For a newly developed battery cell model, due to the change of the size of the battery cell and the size of a pole piece, the existing lamination machine may not meet the size of the battery cell of the new model, and the newly purchased or improved lamination machine needs high cost and can only be produced in a manual lamination mode.
However, for the existing lamination tool, when manual lamination is performed, the alignment degree between the positive plate, the negative plate and the diaphragm is difficult to guarantee, and safety problems such as battery short circuit and the like are easily caused in the subsequent production process.
Disclosure of Invention
The invention provides a lamination tool, which can position a positive plate, a negative plate and a diaphragm during lamination and ensure the alignment degree of the positive plate, the negative plate and the diaphragm in the manual lamination process.
The invention provides a lamination tool, which is applied to the lamination of a pole group of a power battery, wherein the pole group comprises a plurality of positive plates, negative plates and diaphragms which are mutually stacked, the diaphragms are isolated between the positive plates and the negative plates, and the lamination tool comprises: the tooling body and establish positioner on the tooling body, positioner includes locating component, locating component has and is used for the butt to be in the locating surface of utmost point side of group, the locating surface is in the width direction of utmost point group has changeable position to make when the lamination locating component can be right positive plate negative pole piece with the diaphragm is fixed a position respectively.
Optionally, the tool body is provided with an accommodating cavity for accommodating the pole group, and the positioning surface can move relative to the accommodating cavity.
According to the lamination tool, optionally, the positioning assembly comprises a first positioning assembly and a second positioning assembly which are arranged on the side wall of the tool body, wherein the first positioning assembly is used for positioning the positive plate in the lamination process; the second positioning assembly is used for positioning the negative pole piece in the lamination process.
As above, optionally, the first positioning assembly includes a first positioning member and a positioning pin located in the first positioning member, the positioning pin is provided with a positioning boss at one axial side thereof, the end portion of the positioning boss is provided with the positioning surface, the positioning boss is provided in a positioning groove formed in the first positioning member, and the positioning boss is located in the positioning groove at a different position so as to extend into the accommodating cavity or be located outside the accommodating cavity.
According to the lamination tool, optionally, the number of the first positioning assemblies is multiple, and the first positioning assemblies are distributed on the same side or two sides of the tool body; the second positioning assembly is arranged on the tool body and opposite to the first positioning assembly.
Optionally, the length of the positioning boss of the first positioning assembly extending into the accommodating cavity is greater than the length of the positioning boss of the second positioning assembly extending into the accommodating cavity.
According to the lamination tool, optionally, a placing groove for placing the positioning boss is further formed in the first positioning piece, and the placing groove is communicated with the positioning groove;
when the positioning surface extends into the accommodating cavity, the positioning boss is positioned in the positioning groove; when the positioning surface is positioned on the outer side of the accommodating cavity, the positioning boss is positioned in the placing groove.
The lamination tooling as described in any above, optionally, the positioning device further includes: the second positioning piece and the third positioning piece are oppositely arranged on the tool body so as to position the end parts of the positive plate and the negative plate respectively.
According to the lamination tool, optionally, the second positioning piece is located at the first end of the tool body, and a first limiting groove for positioning the end of the positive plate is arranged on one side, close to the positive plate, of the second positioning piece;
the third setting element is located second tip on the frock body, just the third setting element is close to one side of negative pole piece is equipped with and is used for right the tip of negative pole piece advances line location's second spacing groove.
The lamination tooling as described in any above, optionally, the positioning device further includes: the tool comprises a first pressing plate and a second pressing plate, wherein at least part of the first pressing plate and at least part of the second pressing plate are clamped in the tool body, and the pole group is located between the first pressing plate and the second pressing plate.
The invention provides a lamination tool, which is applied to the lamination of a pole group of a power battery, wherein the pole group comprises a plurality of positive plates, negative plates and diaphragms which are mutually stacked, the diaphragms are isolated between the positive plates and the negative plates, and the lamination tool comprises: the tooling body and establish positioner on the tooling body, positioner includes locating component, locating component has and is used for the butt to be in the locating surface of utmost point side of group, the locating surface is in changeable position has on the width direction of utmost point group, and this locating component is along with piling up going on of process, through changing its for the position of tooling body can be right when the lamination the positive plate the negative pole piece with the diaphragm is fixed a position respectively, has guaranteed the alignment degree of manual lamination in-process positive plate, negative pole piece and diaphragm, can effectively prevent because of the safety problems such as battery short circuit that the lamination alignment degree is bad causes in the follow-up production process. Therefore, the lamination tool provided by the embodiment can be used for respectively positioning the positive plate, the negative plate and the diaphragm during lamination, and the alignment degree of the positive plate, the negative plate and the diaphragm in the manual lamination process is guaranteed, so that the technical problem that the alignment degree between the positive plate, the negative plate and the diaphragm is difficult to guarantee during manual lamination in the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a lamination tool according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first positioning element according to an embodiment of the present invention;
FIG. 3 is a first schematic structural diagram of a first positioning assembly according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first positioning assembly according to a first embodiment of the present invention;
fig. 5 is a third schematic structural diagram of the first positioning assembly according to the first embodiment of the present invention;
fig. 6 is a schematic stacking diagram of a positive electrode sheet, a negative electrode sheet and a separator according to a first embodiment of the present invention;
FIG. 7 is a schematic view of a stack of pole groups in a tool body according to an embodiment of the present invention;
FIG. 8 is an assembled view of the first platen, the second platen and the pole set provided in accordance with a third embodiment of the present invention;
fig. 9 is a schematic view of a lamination process of a lamination tool according to a fourth embodiment of the present invention.
Description of reference numerals:
1-positive plate;
101-positive pole tab;
102-a positive electrode material area;
2-negative pole piece;
201-negative pole tab;
202-negative electrode material area;
3-a separator;
4-a tool body;
401-a containment chamber;
5-a first positioning member;
501-positioning grooves;
502-placement of slots;
6-positioning pins;
601-positioning a boss;
6011-a positioning surface;
7-a second positioning element;
701-a first limit groove;
8-a third positioning element;
801-a second limit groove;
9-a first platen;
901-a first gap;
902-a first operating portion;
10-a second platen;
1001-second notch;
1002-a second operation section.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, a lamination machine is often adopted to combine and stack the positive plate 1, the negative plate 2 and the diaphragm 3 in the stacking process of the battery core, and the alignment degree among the positive plate 1, the negative plate 2 and the diaphragm 3 in the stacking process can be ensured. However, for a newly developed battery cell model, due to the change of the battery cell size and the size of the pole piece, the existing lamination machine may not meet the size of the battery cell of the new model, and the newly purchased or modified lamination machine needs high cost, and only the stacking of the pole group can be performed by the existing lamination tool in a manual lamination mode. However, for the existing lamination tool, when manual lamination is performed, it is difficult to ensure the alignment degree between the positive electrode plate 1, the negative electrode plate 2 and the diaphragm 3, and safety problems such as battery short circuit and the like are easily caused in the subsequent production process. Therefore, the invention provides a lamination tool to solve the technical problem that the alignment degree of a positive plate 1, a negative plate 2 and a diaphragm 3 is difficult to guarantee during manual lamination.
Example one
Fig. 1 is a schematic structural diagram of a lamination tool according to a first embodiment of the present invention, fig. 2 is a schematic structural diagram of a first positioning element according to a first embodiment of the present invention, fig. 3 is a schematic structural diagram of a first positioning assembly according to a first embodiment of the present invention, fig. 4 is a schematic structural diagram of a second positioning assembly according to a first embodiment of the present invention, fig. 5 is a schematic structural diagram of a third positioning assembly according to a first embodiment of the present invention, fig. 6 is a schematic stacking diagram of a positive electrode plate, a negative electrode plate and a separator according to a first embodiment of the present invention, and fig. 7 is a schematic stacking diagram of a pole group in a tool body according to a first embodiment of the present invention.
As shown in fig. 1, the present embodiment provides a lamination tool, which is applied to the lamination of a pole group of a power battery, where the pole group includes a plurality of positive plates 1, negative plates 2, and separators 3 stacked on each other, where the separators 3 are isolated between the positive plates 1 and the negative plates 2, and the lamination tool includes: the tooling comprises a tooling body 4 and a positioning device arranged on the tooling body 4, wherein the positioning device comprises a positioning component, the positioning component is provided with a positioning surface 6011 used for abutting against the side of the pole group, and the positioning surface 6011 has a variable position in the width direction of the pole group, so that the positioning component can respectively position the positive pole piece 1, the negative pole piece 2 and the diaphragm 3 during lamination.
In this embodiment, because the polar group is the lamellar structure that has the number of piles of certain layers that a plurality of positive plates 1 that pile up each other, negative pole piece 2 and diaphragm 3 pile up and form, it links to each other with structures such as the casing of battery and constitutes the battery, consequently, along with piling up going on of process, positive plate 1, negative pole piece 2 and diaphragm 3 are more and more big in the thickness that tool body 4 was piled up, in this embodiment, along with piling up going on of process, locating component can be through changing its position for tool body 4, if: the height is abutted to the side of the pole group through the positioning surface 6011 during lamination, the positive pole piece 1, the negative pole piece 2 and the diaphragm 3 can be respectively positioned, the alignment degree of the positive pole piece 1, the negative pole piece 2 and the diaphragm 3 in the manual lamination process is guaranteed, and the safety problems of battery short circuit and the like caused by poor alignment degree of the lamination in the subsequent production process can be effectively prevented.
In this embodiment, as shown in fig. 1, a containing cavity 401 for containing the pole group is provided in the tool body 4, in the lamination process, the positioning component can move relative to the containing cavity 401, when the thickness of the pole group in the containing cavity 401 is thicker and thicker along with the lamination process, the position of the positioning component relative to the containing cavity 401 can be changed by at least partially moving the positioning component to realize the positioning of the side of the pole group, and in this embodiment, the positioning of the side of the pole group can be realized by vertically moving at least partially the moving positioning component relative to the containing cavity 401 through the positioning surface 6011.
In this embodiment, as shown in fig. 1, 6, and 7, in the stacking process, the positive plate 1, the negative plate 2, and the diaphragm 3 are all stacked in the accommodating cavity 401 in the tool body 4, and along with the proceeding of the stacking process, the thickness of the pole group in the accommodating cavity 401 is larger and larger, in this embodiment, the positioning component can move up relative to the tool body 4 through the component playing a positioning role in the positioning component to meet the requirement of respectively positioning the positive plate 1, the negative plate 2, and the diaphragm 3 during lamination, so as to ensure the alignment degree of the positive plate 1, the negative plate 2, and the diaphragm 3 in the manual lamination process.
In this embodiment, as shown in fig. 6 and 7, the positive electrode tab 1 includes a positive electrode tab 101 and a positive electrode material region 102, the negative electrode tab 2 includes a negative electrode tab 201 and a negative electrode material region 202, and in the stacking process, the separator covers the separator 3 and covers the positive electrode material region 102 and the negative electrode material region 202, and the lengths of the separators are both greater than the lengths of the positive electrode material region 102 and the negative electrode material region 202 and both less than the total length of the positive electrode tab 1 and the negative electrode tab 2, so that at least parts of the positive electrode tab 101 and the negative electrode tab are both exposed to the separator 3.
It should be noted that fig. 7 is only for better explaining the relative positional relationship between the ends of the positive electrode sheet 1, the negative electrode sheet 2, and the separator 3 and the tool, and therefore, the positioning assembly is not shown in fig. 7, and reference may be made to fig. 1 for the positional relationship of the positioning assembly on the tool body.
In the present embodiment, as shown in fig. 6 and 7, since the widths of the separator 3, the negative electrode plate 2, and the positive electrode plate 1 in the electrode group are sequentially reduced, in order to perform a certain positioning function on the separator 3, in the present embodiment, the width of the accommodating cavity 401 is equal to the width of the separator 3, the separator 3 can be positioned in the width direction, and the end portions of the separator 3, the positive electrode plate 1, and the negative electrode plate 2 are positioned by the end portion of the accommodating cavity 401 on the tool body 4.
In the embodiment, in order to position the end portions of the diaphragm 3, the positive plate 1 and the negative plate 2, the end portions of the accommodating cavities 401 on the tool body 4 may be provided with corresponding clamps and structures for positioning, where the clamps and structures include, but are not limited to, clamps and structures provided with clamp grooves at positions corresponding to the end portions of the diaphragm 3, the positive plate 1 and the negative plate 2; in this embodiment, the card and the structure may be a structure integrally formed with the tool body 4 at the end of the tool body 4, or the card and the structure may be detachably connected with the tool body 4 at the end of the tool body 4. In the present embodiment, the card and the structure are not further limited, and it is only necessary to position the end portions of the separator 3, the positive electrode tab 1, and the negative electrode tab 2 by the card and the structure.
In this embodiment, as shown in fig. 1, 6 and 7, the positioning assembly includes a first positioning assembly and a second positioning assembly respectively disposed on the side wall of the tool body 4, wherein the first positioning assembly is used for positioning the positive plate 1 in the lamination process; the second positioning assembly is used for positioning the negative electrode tabs 2 in the lamination process.
In this embodiment, as shown in fig. 1, the first positioning assembly and the second positioning assembly are disposed on the side wall of the tool body 4, that is, the first positioning assembly and the second positioning assembly are located on the side wall of the accommodating cavity 401, and the positive plate 1 and the negative plate 2 are respectively positioned in the lamination process by the first positioning assembly and the second positioning assembly, so as to ensure the alignment degree of the positive plate 1, the negative plate 2 and the diaphragm 3 in the manual lamination process.
In this embodiment, as shown in fig. 1 to 5, the first positioning component includes a first positioning member 5 and a positioning pin 6 located in the first positioning member 5, the positioning pin 6 is provided with a positioning boss 601 on one axial side thereof, an end portion of the positioning boss 601 has a positioning surface 6011, a positioning groove 501 is provided in the first positioning member 5, the positioning boss 601 has a variable position in the positioning groove 501, and the positioning surface extends into the accommodating cavity 401 or is located outside the accommodating cavity 401 along with a difference of the position of the positioning boss 601 in the positioning groove 501, so as to position the positive plate 1.
In this embodiment, the end of the accommodating cavity 401 on the tool body 4 is adjusted to provide a corresponding clamp and structure, so that the positive plate 1 is located at the center position in the accommodating cavity 401. On the basis of the above, since the widths of the negative electrode sheet 2 and the positive electrode sheet 1 are smaller than the width of the separator 3, in order to ensure that the positive electrode sheet 1 is further positioned in the stacking process, as shown in fig. 3 and 4, the outermost positioning surface 6011 of the positioning boss 601 needs to extend into the accommodating cavity 401 to position the side wall of the positive electrode sheet 1, so as to position the positive electrode sheet 1. In this embodiment, as shown in fig. 3 and 4, the positioning pin 6 is located in the first positioning member 5, and as the stacking process proceeds, the thickness of the pole group in the accommodating cavity 401 increases continuously, and in order to position the positive plate 1 at the upper end of the pole group, in this embodiment, the positioning pin 6 moves up and down, and accordingly, the positioning surface 6011 at the outermost side of the positioning boss 601 also moves up and down along with the positioning pin, and the positioning surface 6011 at the end of the positioning boss 601 positions the side wall of the positive plate 1 to be positioned, so as to avoid affecting the lamination due to the change of the thickness of the pole group.
In this embodiment, the first positioning element 5 may be a positioning block having a certain thickness or other structures capable of opening the positioning groove 501 and accommodating the positioning pin 6, that is, the first positioning element 5 in this embodiment includes, but is not limited to, a positioning block.
In this embodiment, the first positioning element 5 may be detachably connected to the fixture body 4, and the first positioning element 5 may also be fixedly connected to the fixture body 4 as an integrated structure, i.e. the connection manner between the first positioning element 5 and the fixture body 4 in this embodiment includes, but is not limited to, detachable connection. In this embodiment, the detachable connection manner of the first positioning member 5 and the tool body 4 includes, but is not limited to, connection by a fastener, where the fastener includes a bolt or a screw.
In this embodiment, as shown in fig. 1, the first positioning assemblies are distributed on the same side or two sides of the tool body 4, wherein the second positioning assemblies and the first positioning assemblies have the same structure, and the second positioning assemblies are arranged on the tool body 4 opposite to the first positioning assemblies.
Wherein, in this embodiment, as shown in fig. 1, in order to play a better positioning effect to positive plate 1, the number of first locating component is a plurality of, when the number of first locating component is a plurality of, first locating component can distribute at the homonymy of frock body 4, be convenient for to the unilateral operation when positive plate 1 fixes a position, first locating component also can distribute in the both sides of frock body 4, and be close to 1 one end of positive plate and arrange, fix a position the both sides of positive plate 1 through the location boss 601 of frock body 4 both sides. Wherein, when first locating component is a plurality of, this embodiment, first locating component is preferred to be distributed at the homonymy of frock body 4, when guaranteeing to advance line location to positive pole piece 1, makes things convenient for operating personnel to control and operate from unilateral.
In this embodiment, as shown in fig. 1, the second positioning assembly has the same structure as the first positioning assembly, and in this embodiment, further description is not given to the structure of the second positioning assembly, and the process of positioning the negative plate 2 by the second positioning assembly may refer to the process of positioning the positive plate 1 by the first positioning assembly. In this embodiment, when the first positioning assemblies are distributed on the same side of the tool body 4, the second positioning assemblies are distributed on the opposite side of the tool body 4 from the first positioning assemblies; when the first positioning components are distributed on two sides of the tool body 4, the second positioning components are distributed on two sides of the tool body 4 and are arranged close to one end of the negative plate 2. In this embodiment, since the width of the positive plate 1 is smaller than the width of the negative plate 2, in order to ensure the positioning effect on the side wall of the positive plate 1, the length of the positioning boss 601 of the first positioning assembly extending into the accommodating cavity 401 is longer than the length of the positioning boss 601 of the second positioning assembly extending into the accommodating cavity 401,
in this embodiment, the length of the positioning boss 601 of the first positioning component extending into the accommodating cavity 401 is greater than the length of the positioning boss 601 of the second positioning component extending into the accommodating cavity 401, that is, in this embodiment, the length of the inner side wall of the positioning boss 601 of the first positioning component protruding out of the tool body 4 is greater than the length of the inner side wall of the positioning boss 601 of the second positioning component protruding out of the tool body 4. Therefore, in this embodiment, in order to ensure that the length of the inner side wall of the tool body 4 protruded by the positioning boss 601 of the first positioning assembly is greater than the length of the inner side wall of the tool body 4 protruded by the positioning boss 601 of the second positioning assembly, the depth of the groove of the positioning groove 501 in the first positioning member 5 in the first positioning assembly or the second positioning assembly can be adjusted, the length of the positioning boss 601 in the first positioning assembly and the second positioning assembly can also be adjusted, in this embodiment, it is only necessary to ensure that the length of the positioning boss 601 of the first positioning assembly extending into the accommodating cavity 401 is greater than the length of the positioning boss 601 of the second positioning assembly extending into the accommodating cavity 401.
In this embodiment, as shown in fig. 1 to 5, a placing groove 502 for placing the positioning boss 601 is further disposed in the first positioning member 5, and the placing groove 502 is communicated with the positioning groove 501; when the positioning surface 6011 extends into the accommodating cavity 401, the positioning boss 601 is located in the positioning groove 501; when the positioning surface 6011 is located outside the accommodating chamber 401, the positioning boss 601 is located in the placement groove 502. In this embodiment, when positive plate 1 or negative plate 2 needs to be positioned, positioning boss 601 is located positioning groove 501, and positioning surface 6011 stretches into and holds the chamber 401 and fixes a position positive plate 1 or negative plate 2's side, otherwise, when need not to fix a position positive plate 1 or negative plate 2's side, positioning boss 601 of locating pin 6 is located standing groove 502, and positioning surface 6011 is located and holds the chamber 401 outside, prevents to influence the piling up of other component parts in the polar group.
In this embodiment, as shown in fig. 1 to 5, the placing groove 502 is perpendicular to the positioning groove 501, the positioning pin 6 is located at the intersection of the placing groove 502 and the positioning groove 501, and the positioning boss 601 is located in the positioning groove 501 or the placing groove 502, that is, in this embodiment, the first positioning member 5 is further provided with a cavity structure for accommodating the positioning pin 6 at the intersection of the placing groove 502 and the positioning groove 501, and the shape of the cavity structure is adapted to the structure of the positioning pin 6.
In this embodiment, the structures of the positioning groove 501 and the placement groove 502 are both adapted to the structure of the positioning boss 601, in this embodiment, the positioning boss 601 preferably has a bar structure, and the positioning groove 501 and the placement groove 502 also have a bar structure.
In the present embodiment, as shown in fig. 1 to 5, the positioning boss 601 and the positioning pin 6 are integrally formed. In this embodiment, the positioning pin 6 and the positioning boss 601 are disposed in the first positioning member 5 and are in clearance fit with the placement groove 502 or the positioning groove 501 in the first positioning member 5.
As shown in fig. 1 to 5, in order to facilitate better identification of the first positioning assembly and the second positioning assembly, in this embodiment, positive and negative signs are respectively disposed on the first positioning assembly and the second positioning assembly, wherein the positive and negative signs may be preferably disposed on the positioning pins 6 of the first positioning assembly and the second positioning assembly. Besides, the embodiment can also avoid the positioning pin 6 from being misplaced due to improper operation of workers by changing the sizes of the first positioning assembly and the second positioning assembly, for example, making the size of the first positioning assembly slightly larger than that of the second positioning assembly.
Therefore, the lamination frock that this embodiment provided is applied to the stack of power battery's utmost point group, and utmost point group includes a plurality of positive plate 1, negative pole piece 2 and the diaphragm 3 that piles up each other, and wherein, diaphragm 3 keeps apart between positive plate 1 and negative pole piece 2, and the lamination frock includes: tool body 4, and establish the positioner on tool body 4, positioner includes locating component, locating component has the locating surface 6011 that is used for the butt in utmost point group side, locating surface 6011 has changeable position on the width direction of utmost point group, this locating component is along with the going on of piling up the process, through changing its position for tool body 4, can be when the lamination positive plate 1, negative pole piece 2 and diaphragm 3 fix a position respectively, positive plate 1 in the manual lamination in-process has been guaranteed, the alignment degree of negative pole piece 2 and diaphragm 3, can effectively prevent safety problems such as battery short circuit because of the lamination alignment degree is bad in the follow-up production process. Therefore, the lamination tool provided by the embodiment can position the positive plate 1, the negative plate 2 and the diaphragm 3 during lamination, and can ensure the alignment degree of the positive plate 1, the negative plate 2 and the diaphragm 3 in the manual lamination process, so that the technical problem that the alignment degree between the positive plate 1, the negative plate 2 and the diaphragm 3 is difficult to ensure during manual lamination in the prior art is solved.
Example two
Further, as shown in fig. 1, the difference between the present embodiment and the above-mentioned embodiment is that in the present embodiment, the positioning device further includes: the positioning device comprises a second positioning piece 7 and a third positioning piece 8, wherein the second positioning piece 7 and the third positioning piece 8 are oppositely arranged on the tool body 4 so as to respectively position the end parts of the positive pole piece 1 and the negative pole piece 2.
In this embodiment, the end portions of the positive electrode plate 1 and the diaphragm 3 are located by the second locating piece 7, and the end portions of the negative electrode plate 2 and the diaphragm 3 are located by the third locating piece 8, so as to ensure the alignment degree of the positive electrode plate 1, the negative electrode plate 2 and the diaphragm 3 in the manual lamination process.
In this embodiment, as shown in fig. 1, the second positioning element 7 is located at a first end portion of the tool body 4, a first limiting groove 701 for positioning an end portion of the positive plate 1 is disposed on one side, close to the positive plate 1, of the second positioning element 7, the positive tab 101 at the end portion of the positive plate 1 is located in the first limiting groove 701, the end portion of the positive plate 1 is positioned through the first limiting groove 701, and positioning in the length direction and the width direction of the positive plate 1 during lamination is achieved by combining the first positioning element;
the third setting element 8 is located the second tip on the frock body 4, and one side that the third setting element 8 is close to negative pole piece 2 is equipped with the second spacing groove 801 that is used for fixing a position the tip of negative pole piece 2, and the negative pole utmost point ear 201 of negative pole piece 2 tip is located second spacing groove 801, fixes a position 2 tip of negative pole piece through second spacing groove 801, combines second locating component to realize the location to negative pole piece 2 length and width direction when the lamination.
In this embodiment, as shown in fig. 1, the number of the second positioning parts 7 is two, the two second positioning parts are respectively located at two sides of the first end portion of the tooling body 4, and two sides of the end portion of the positive plate 1 are respectively positioned by the first limiting grooves 701 of the two second positioning parts 7; correspondingly, the number of the third positioning parts 8 is two, the third positioning parts are respectively located at two sides of the second end part of the tool body 4, and the two sides of the end part of the negative plate 2 are respectively positioned through the second limiting grooves 801 of the two third positioning parts 8.
In the present embodiment, as shown in fig. 1, the cross-sectional shapes of the first and second limiting grooves 701 and 801 are preferably L-shaped structures.
As shown in fig. 1, in order to better identify the second positioning element 7 and the third positioning element 8, in this embodiment, positive and negative signs are respectively disposed on the second positioning element 7 and the third positioning element 8.
In this embodiment, the second positioning element 7 and the third positioning element 8 may be positioning blocks, or may be other structures capable of positioning the ends of the positive electrode plate 1, the negative electrode plate 2, and the separator 3, that is, in this embodiment, the second positioning element 7 and the third positioning element 8 include, but are not limited to, positioning blocks.
In the present embodiment, since both ends of the separator 3 in the length direction are located at the positive electrode tab 101 and the negative electrode tab 201, and the separator 3 is wider than the positive electrode tab 1 and the negative electrode tab 2, an L-shaped concave structure is formed between both ends of the separator 3 and the positive electrode tab 101 and the negative electrode tab 201, respectively, so that the separator 3 can be positioned in the length direction of the separator 3 by the end portion of one end of the first limiting groove 701 and the end portion of one end of the second limiting groove 801.
In the present embodiment, the tab is a metal conductor that leads the positive and negative electrodes from the electrode group, that is, the positive tab 101 and the negative tab 201 are contact points when the battery is charged and discharged, and in the present embodiment, the positive tab and the negative tab 201 respectively refer to end structures where the positive electrode sheet 1 and the negative electrode sheet 2 are exposed with respect to the end of the separator 3.
EXAMPLE III
Fig. 8 is an assembly schematic diagram of the first pressure plate, the second pressure plate and the pole group provided by the third embodiment of the invention.
Further, on the basis of the above embodiment, as shown in fig. 8, in this embodiment, the positioning device further includes: the tool comprises a first pressing plate 9 and a second pressing plate 10, wherein at least part of the first pressing plate 9 and the second pressing plate 10 are clamped in the tool body 4, a pole group is located between the first pressing plate 9 and the second pressing plate 10, and in the embodiment, the first pressing plate 9 and the second pressing plate 10 are respectively located above and below the pole group so as to tightly press the pole group between the first pressing plate 9 and the second pressing plate 10.
In this embodiment, as shown in fig. 8, two ends of the first pressing plate 9 are provided with first notches 901 respectively matched with the first limiting groove 701 and the second limiting groove 801, two ends of the second pressing plate 10 are provided with second notches 1001 respectively matched with the first limiting groove 701 and the second limiting groove 801, before the pole sets are stacked in the accommodating cavity 401 in the tool body 4, the first pressing plate 9 is respectively clamped with the first limiting groove 701 and the second limiting groove 801 through the first notches 901 at the two ends, so that the first pressing plate 9 is clamped in the tool body 4; after the pole group is stacked, similarly, the second pressing plate 10 is respectively clamped with the first limiting groove 701 and the second limiting groove 801 through the second notches 1001 at the two ends of the second pressing plate, so that the second pressing plate 10 is clamped in the tool body 4, the second pressing plate 10 is located on the pole group, the pole group is fixed between the first pressing plate 9 and the second pressing plate 10 to press the pole group, then the upper pressing plate, the lower pressing plate and the pole group are manually and horizontally taken out, the hot pressing is carried out by the upper pressing plate and the lower pressing plate pressing the pole group together, the situation that the pole group moves to a hot pressing station to cause deviation and influence the alignment degree can be prevented, finally, the positive pole piece 2 and the negative pole piece 3 in the pole group can be adhered together through hot pressing equipment, and the positive pole piece 1, the negative pole piece 2 and the negative pole piece 3 after the hot pressing cannot cause deviation and are bad.
In the present embodiment, as shown in fig. 8, in order to facilitate the first pressing plate 9 and the second pressing plate 10 to be horizontally taken out from the tool body 4, the end portions of the two ends of the first pressing plate 9 and the second pressing plate 10 respectively extend to the outside of the tool body 4 along the space between the two second positioning elements 7 and the two third positioning elements 8, so as to form a first operation portion 902 of the first pressing plate 9 and a second operation portion 1002 of the second pressing plate 10, and when the first pressing plate 9 and the second pressing plate 10 need to be horizontally taken out, the first pressing plate 9, the second pressing plate 10 and the pole group can be horizontally taken out through the first operation portion 902 and the second operation portion 1002.
In the present embodiment, the first operating portion 902 and the second operating portion 1002 are integrally formed with the first presser plate 9 and the second presser plate 10, respectively.
It should be noted that, in the process of hot pressing, since the upper pressing plate and the lower pressing plate press the pole group to perform hot pressing together, the pole group is always in a fixed state and does not need to be fixed by other fixing methods, for example: the adhesive tape is adopted for fixing, so that the production efficiency can be improved, and the influence of uneven thickness of the electrode group after hot pressing on the hot pressing effect and the subsequent electrolyte infiltration effect caused by the adhesive tape can be avoided.
Example four
Fig. 9 is a schematic view of a lamination process of a lamination tool according to a fourth embodiment of the present invention.
Further, on the basis of the above embodiments, as shown in fig. 6 to 9, the present embodiment provides a lamination method of a lamination tool, which includes:
step 101: positioning pins 6 of the first positioning assembly and the second positioning assembly are placed in the placing groove 502, a piece of diaphragm 3 is placed in the tool body 4, and the diaphragm 3 is positioned through the accommodating cavity 401 of the tool body 4;
step 102: the positioning pin 6 of the second positioning assembly is placed in the positioning groove 501, one negative plate 2 is placed in the tool body 4, and the negative plate 2 is positioned through the positioning pin 6 of the second positioning assembly and the second end of the tool body 4;
step 103: a positioning pin 6 of the second positioning assembly is placed in the placing groove 502, and a piece of diaphragm 3 is placed in the tool body 4;
step 104: a positioning pin 6 of a first positioning assembly is placed in a positioning groove 501, a positive plate 1 is placed in a tool body 4, and the positive plate 1 is positioned through the positioning pin 6 of the first positioning assembly and a first end part of the tool body 4;
step 105: placing a positioning pin 6 of the first positioning assembly in the placing groove 502, and placing a piece of diaphragm 3 in the tool body 4;
step 106: and stacking the laminated plates in sequence until the number of laminated layers of the pole group is reached.
It should be noted that, in general, the requirements of the pole pack lamination are as follows: the separator 3 → the negative electrode → the separator 3 → the positive electrode → the separator 3 → the negative electrode → the separator 3 → the positive electrode …, and then the lamination is sequentially performed in the above-described order, and therefore, the lamination order of the pole group of the present embodiment follows the lamination requirement of the pole group in the usual case.
In this embodiment, the number of the positive and negative electrode lamination layers may be determined according to the design parameters of the battery core of the power battery, and the lamination may be performed in sequence according to the number of the lamination layers in the above manner.
In the embodiment, the first positioning assembly and the second positioning assembly can simultaneously position the positive plate 1, the negative plate 2 and the diaphragm 3 when the lamination is performed by changing the height of the first positioning assembly and the second positioning assembly relative to the tool body 4 along with the proceeding of the stacking process, so that the alignment degree of the positive plate 1, the negative plate 2 and the diaphragm 3 in the manual lamination process is ensured, and the safety problems of battery short circuit and the like caused by poor alignment degree of the lamination in the subsequent production process can be effectively prevented.
In the embodiment, after lamination, the first pressing plate 9 and the second pressing plate 10 are used for pressing the electrode group for hot pressing, the hot pressing equipment can adhere the single positive and negative electrode plates 2 and the diaphragm 3 in the electrode group together, and the positive and negative electrode plates 2 and the diaphragm 3 can not deviate after hot pressing, so that the situation of poor alignment of the electrode group is effectively avoided, and further the safety problems of battery short circuit and the like caused by poor alignment in the subsequent process are prevented. After the hot pressing is completed, the first pressing plate 9 and the second pressing plate 10 can be taken back to be placed in the tool body 4, and the manual lamination of the next pole group is continued.
In this embodiment, the negative electrode plates in the electrode group are more than the positive electrode plates by one, and the number of the separators is the sum of the numbers of the positive electrode plates and the negative electrode plates plus one.
The lamination tool and the lamination method provided by the embodiment can position the positive plate 1, the negative plate 2 and the diaphragm 3 during lamination, and ensure the alignment degree of the positive plate 1, the negative plate 2 and the diaphragm 3 in the manual lamination process, so that the technical problem that the alignment degree of the positive plate 1, the negative plate 2 and the diaphragm 3 is difficult to ensure during manual lamination in the prior art is solved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a lamination frock, is applied to the closed assembly of power battery's utmost point group, utmost point group includes a plurality of positive plates, negative pole piece and the diaphragm that piles up each other, wherein, the diaphragm is kept apart positive plate with between the negative pole piece, its characterized in that, the lamination frock includes: the positioning device comprises a positioning assembly, the positioning assembly is provided with a positioning surface which is used for abutting against the side of the pole group, and the positioning surface has a variable position in the width direction of the pole group, so that the positioning assembly can respectively position the positive pole piece, the negative pole piece and the diaphragm during lamination;
an accommodating cavity for accommodating the pole group is formed in the tool body, and the positioning surface can move relative to the accommodating cavity;
the positioning assembly comprises a first positioning assembly and a second positioning assembly which are arranged on the side wall of the tool body, wherein the first positioning assembly is used for positioning the positive plate in the lamination process; the second positioning assembly is used for positioning the negative pole piece in the lamination process, and the structure of the second positioning assembly is the same as that of the first positioning assembly;
the first positioning component comprises a first positioning piece and a positioning pin positioned in the first positioning piece, a positioning boss is arranged on one axial side of the positioning pin, the end part of the positioning boss is provided with the positioning surface, the positioning boss is arranged in a positioning groove formed in the first positioning piece, the positioning boss is provided with a variable position in the positioning groove, and the positioning surface extends into the accommodating cavity or is positioned outside the accommodating cavity along with the difference of the positions of the positioning boss in the positioning groove.
2. The lamination tool according to claim 1, wherein the number of the first positioning assemblies is multiple, and the first positioning assemblies are distributed on the same side or two sides of the tool body; the second positioning assembly is arranged on the tool body and opposite to the first positioning assembly.
3. The lamination tooling of claim 1, wherein the length of the positioning boss of the first positioning assembly extending into the accommodating cavity is greater than the length of the positioning boss of the second positioning assembly extending into the accommodating cavity.
4. The lamination tool according to claim 1, wherein a placing groove for placing the positioning boss is further formed in the first positioning piece, and the placing groove is communicated with the positioning groove;
when the positioning surface extends into the accommodating cavity, the positioning boss is positioned in the positioning groove; when the positioning surface is positioned on the outer side of the accommodating cavity, the positioning boss is positioned in the placing groove.
5. The lamination tooling of any one of claims 1 to 4, wherein the positioning device further comprises: the second positioning piece and the third positioning piece are oppositely arranged on the tool body so as to position the end parts of the positive plate and the negative plate respectively.
6. The lamination tooling according to claim 5, wherein the second positioning member is located at a first end portion of the tooling body, and a first limiting groove for positioning the end portion of the positive plate is arranged on one side, close to the positive plate, of the second positioning member;
the third setting element is located second tip on the frock body, just the third setting element is close to one side of negative pole piece is equipped with and is used for right the tip of negative pole piece advances line location's second spacing groove.
7. The lamination tooling of any one of claims 1 to 4, wherein the positioning device further comprises: the tool comprises a first pressing plate and a second pressing plate, wherein at least part of the first pressing plate and at least part of the second pressing plate are clamped in the tool body, and the pole group is located between the first pressing plate and the second pressing plate.
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| CN201910674557.6A CN110364767B (en) | 2019-07-25 | 2019-07-25 | Lamination frock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910674557.6A CN110364767B (en) | 2019-07-25 | 2019-07-25 | Lamination frock |
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| CN110364767A CN110364767A (en) | 2019-10-22 |
| CN110364767B true CN110364767B (en) | 2021-01-26 |
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| CN112053326B (en) * | 2020-08-13 | 2023-12-08 | 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 cells |
| CN113725476A (en) * | 2021-09-06 | 2021-11-30 | 苏州领湃新能源科技有限公司 | Lamination tool and lamination method for lithium ion battery |
| DE102021128348A1 (en) | 2021-10-29 | 2023-05-04 | Volkswagen Aktiengesellschaft | Method and device for laminating battery cell components |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038259Y (en) * | 2007-01-16 | 2008-03-19 | 天津力神电池股份有限公司 | Tool equipment for manufacturing irregular shape polymer battery polar pack |
| CN201038231Y (en) * | 2007-04-02 | 2008-03-19 | 周明明 | Accumulator polar pack lamination box |
| CN201163641Y (en) * | 2007-04-09 | 2008-12-10 | 比亚迪股份有限公司 | Clamper for battery lamination |
| CN202564490U (en) * | 2012-03-01 | 2012-11-28 | 合肥国轩高科动力能源有限公司 | Lithium battery lamination die |
| CN202797155U (en) * | 2012-07-14 | 2013-03-13 | 倪丰萍 | Plate group assembling device for storage battery |
| CN106785076A (en) * | 2016-12-30 | 2017-05-31 | 成都国珈星际固态锂电科技有限公司 | Pole piece positioning mechanism, lithium ion battery lamination device and lithium ion battery lamination method |
-
2019
- 2019-07-25 CN CN201910674557.6A patent/CN110364767B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038259Y (en) * | 2007-01-16 | 2008-03-19 | 天津力神电池股份有限公司 | Tool equipment for manufacturing irregular shape polymer battery polar pack |
| CN201038231Y (en) * | 2007-04-02 | 2008-03-19 | 周明明 | Accumulator polar pack lamination box |
| CN201163641Y (en) * | 2007-04-09 | 2008-12-10 | 比亚迪股份有限公司 | Clamper for battery lamination |
| CN202564490U (en) * | 2012-03-01 | 2012-11-28 | 合肥国轩高科动力能源有限公司 | Lithium battery lamination die |
| CN202797155U (en) * | 2012-07-14 | 2013-03-13 | 倪丰萍 | Plate group assembling device for storage battery |
| CN106785076A (en) * | 2016-12-30 | 2017-05-31 | 成都国珈星际固态锂电科技有限公司 | Pole piece positioning mechanism, lithium ion battery lamination device and lithium ion battery lamination method |
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