CN216793768U - Film-making mechanism and cell production device - Google Patents
Film-making mechanism and cell production device Download PDFInfo
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- CN216793768U CN216793768U CN202220144731.3U CN202220144731U CN216793768U CN 216793768 U CN216793768 U CN 216793768U CN 202220144731 U CN202220144731 U CN 202220144731U CN 216793768 U CN216793768 U CN 216793768U
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- pole piece
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a sheet making mechanism and a cell production device, and relates to the technical field of batteries. The sheet making mechanism comprises a first pole piece unreeling assembly, a first pole piece assembly, a diaphragm unreeling assembly, a first composite assembly and a diaphragm connecting piece, wherein the first pole piece unreeling assembly is used for unreeling a first pole piece, the first pole piece assembly is used for cutting off the first pole piece to obtain a plurality of first pole piece units, the diaphragm unreeling assembly is used for unreeling an upper diaphragm and a lower diaphragm, the first composite assembly is used for sequentially compounding the plurality of first pole piece units at intervals between the upper diaphragm and the lower diaphragm to form a first composite material belt, and the diaphragm connecting piece is used for enabling the upper diaphragm and the lower diaphragm to be connected between any two adjacent first pole piece units. The sheet making mechanism provided by the utility model can prevent the diaphragm from being reversely folded in the lamination process, and can improve the performance and safety of the battery.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a sheet making mechanism and a battery cell production device.
Background
In the process of producing the battery, when the lamination machine is adopted to laminate the composite material belt, because two layers of diaphragms of the composite material belt are not bonded together, the diaphragms positioned in the inner layers are easy to reversely turn over at the folding positions, and the performance of the battery is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sheet making mechanism which can prevent a diaphragm from being reversely folded in a lamination process and improve the performance of a battery.
Another object of the present invention is to provide a cell production apparatus, which can prevent the membrane from being reversely folded during the lamination process, thereby improving the battery performance.
The utility model provides a technical scheme that:
the utility model provides a film-making mechanism, unreels subassembly, first slice subassembly, diaphragm including first pole piece, first pole piece unreels subassembly, first compound subassembly and diaphragm connecting piece, first pole piece unreels the subassembly and is used for unreeling first pole piece, first slice subassembly is used for cutting off first pole piece obtains a plurality of first pole piece units, the diaphragm unreels the subassembly and is used for unreeling upper diaphragm and lower floor's diaphragm, first compound subassembly is used for a plurality of first pole piece unit is in proper order the interval compound upper diaphragm with form first compound material area between the lower floor's diaphragm, the diaphragm connecting piece is used for making upper diaphragm with lower floor's diaphragm is in arbitrary adjacent two the position between the first pole piece unit is connected.
Furthermore, the diaphragm connecting piece is a glue dispenser, and the glue dispenser is arranged between the diaphragm unwinding assembly and the first composite assembly and is used for dispensing at least one of the upper diaphragm and the lower diaphragm.
Furthermore, the diaphragm connecting piece is arranged on the discharge side of the first composite assembly and used for connecting the upper diaphragm and the lower diaphragm on the first composite material belt at any position between any two adjacent first pole piece units.
Further, the diaphragm connecting piece is a laser welder, and the laser welder is used for performing laser breakdown on the upper diaphragm and the lower diaphragm on the first composite material belt at a position between any two adjacent first pole piece units.
Further, the diaphragm connecting piece is a heat sealing device, and the heat sealing device is used for performing heat sealing on the upper diaphragm and the lower diaphragm on the first composite material belt at the position between any two adjacent first pole piece units.
Further, the sheet making mechanism further comprises a second pole piece unreeling assembly, a second slice assembly and a second composite assembly, wherein the second pole piece unreeling assembly is used for unreeling the second pole piece, the second slice assembly is used for cutting off the second pole piece for multiple times to obtain a plurality of second pole piece units, and the second composite assembly is used for compositing the second pole piece units on the first composite material belt to form a second composite material belt.
Further, the diaphragm connecting piece is arranged between the first composite assembly and the second composite assembly and used for connecting the upper diaphragm and the lower diaphragm on the first composite material belt at any position between any two adjacent first pole piece units.
Furthermore, the diaphragm connecting piece is arranged on the discharge side of the second composite assembly and used for connecting the upper diaphragm and the lower diaphragm on the second composite material belt at any position between any two adjacent first pole piece units.
The utility model also provides a battery cell production device which comprises the production mechanism, wherein the production mechanism comprises a first pole piece unreeling assembly, a first pole piece assembly, a diaphragm unreeling assembly, a first composite assembly and a diaphragm connecting piece, the first pole piece unreeling assembly is used for unreeling a first pole piece, the first pole piece assembly is used for cutting off the first pole piece to obtain a plurality of first pole piece units, the diaphragm unreeling assembly is used for unreeling an upper diaphragm and a lower diaphragm, the first composite assembly is used for sequentially compounding the first pole piece units between the upper diaphragm and the lower diaphragm at intervals to form a first composite material belt, and the diaphragm connecting piece is used for enabling the upper diaphragm and the lower diaphragm to be connected between any two adjacent first pole piece units.
Compared with the prior art, the sheet making mechanism provided by the utility model is provided with the diaphragm connecting piece, so that the upper-layer diaphragm and the lower-layer diaphragm can be connected at any position between two adjacent first pole piece units, and the first pole piece units are positioned between the upper-layer diaphragm and the lower-layer diaphragm and can be positive pole piece units or negative pole piece units. In the process of laminating, the position between two adjacent first pole piece units is used as a folding position, and the upper-layer diaphragm and the lower-layer diaphragm are connected at the folding position under the action of the diaphragm connecting piece, so that any one of the upper-layer diaphragm and the lower-layer diaphragm is positioned in the folded inner layer, and reverse folding cannot occur. Therefore, the beneficial effects of the tabletting mechanism provided by the utility model comprise: the reverse turnover of the diaphragm in the lamination process can be prevented, and the performance and the safety of the battery are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the utility model and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural view of a sheeting mechanism according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a tableting mechanism according to a second embodiment of the present invention;
fig. 3 is a schematic structural view of a tableting mechanism according to a third embodiment of the present invention;
FIG. 4 is a schematic view of the second composite tape before lamination;
fig. 5 is a schematic structural view after the second composite tape is laminated.
Icon: 10-a first pole piece; 11-a first pole piece unit; 20-upper membrane; 30-a lower membrane; 40-a second pole piece; 41-second pole piece unit; 100-a tabletting mechanism; 110-a first pole piece unwinding assembly; 120-a first slice assembly; 130-a membrane unwinding assembly; 140-a first composite component; 150-diaphragm connector; 160-a second pole piece unwinding assembly; 170-a second slicing assembly; 180-second composite component.
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. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is also to be noted that, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the 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.
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a sheet making mechanism 100 according to a first embodiment.
The sheet-making mechanism 100 provided in this embodiment is used to unreel, cut, bond, and compound the positive electrode sheet, the negative electrode sheet, the upper-layer diaphragm 20, and the lower-layer diaphragm 30 to form a composite material tape, so as to perform subsequent lamination. The sheet-making mechanism 100 provided in this embodiment includes a first pole piece unwinding assembly 110, a first slice assembly 120, a membrane unwinding assembly 130, a first composite assembly 140, a membrane connector 150, a second pole piece unwinding assembly 160, a second slice assembly 170, and a second composite assembly 180.
The first pole piece unreeling assembly 110 is used for unreeling a first pole piece 10, the first slice assembly 120 is used for cutting off the first pole piece 10 to obtain a plurality of first pole piece units 11, the diaphragm unreeling assembly 130 is used for unreeling an upper diaphragm 20 and a lower diaphragm 30, and the first composite assembly 140 is used for sequentially compounding the plurality of first pole piece units 11 at intervals between the upper diaphragm 20 and the lower diaphragm 30 to form a first composite material belt. The membrane connector 150 is used to connect the upper membrane 20 to the lower membrane 30 at a position between any adjacent two of the first pole piece units 11.
The second pole piece unwinding assembly 160 is configured to unwind the second pole piece 40, the second slicing assembly 170 is configured to cut the second pole piece 40 multiple times to obtain a plurality of second pole piece units 41, and the second combining assembly 180 is configured to combine the plurality of second pole piece units 41 on the first compound material tape to form a second compound material tape.
In this embodiment, the first pole piece 10 is a negative pole piece, the first pole piece unit 11 is a negative pole piece unit, the second pole piece 40 is a positive pole piece, and the second pole piece unit 41 is a positive pole piece unit. In other embodiments, the first pole piece 10 may also be a positive pole piece, and the corresponding second pole piece 40 is a negative pole piece, according to practical applications.
In this embodiment, the diaphragm connecting member 150 is a dispenser, the dispenser is disposed between the diaphragm unwinding assembly 130 and the first composite assembly 140, that is, in a conveying path of the diaphragm, the dispenser is disposed between a discharging side of the diaphragm unwinding assembly 130 and a feeding side of the first composite assembly 140. The dispenser is used for dispensing at least one of the upper diaphragm 20 and the lower diaphragm 30.
In fact, the membrane unwinding assembly 130 includes an upper layer unwinding machine and a lower layer unwinding machine, the upper layer unwinding machine and the lower layer unwinding machine are respectively disposed on the upper side and the lower side of the first composite assembly 140, the upper layer unwinding machine is used for unwinding the upper membrane 20, and the lower layer unwinding machine is used for unwinding the lower membrane 30.
The membrane connectors 150 are used as glue dispensing machines, the number of the membrane connectors is two, the membrane connectors are respectively arranged between the upper-layer unreeling machine and the first composite assembly 140, and between the lower-layer unreeling machine and the first composite assembly 140, the two glue dispensing machines are used for respectively dispensing glue at intervals on the upper-layer membrane 20 and the lower-layer membrane 30, so that in the process that the first composite assembly 140 compounds the upper-layer membrane 20, the first pole piece units 11 and the lower-layer membrane 30, the upper-layer membrane 20 and the lower-layer membrane 30 can be bonded at the positions between the two adjacent first pole piece units 11.
In other embodiments, only one dispenser may be provided, and only the upper membrane 20 or only the lower membrane 30 may be dispensed at intervals. It can be understood that the dispenser may be set to dispense the corresponding diaphragms at preset time intervals, or may be set to dispense the corresponding diaphragms at a distance of one sheet width.
Referring to fig. 2, fig. 2 is a schematic mechanism diagram of a sheet making mechanism 100 according to a second embodiment.
The present embodiment provides a sheeting mechanism 100 that differs from the first embodiment in that a membrane connector 150 is provided on the discharge side of the first composite assembly 140 for connecting the upper membrane 20 and the lower membrane 30 on the first composite strip at a location between any adjacent two first pole piece units 11.
In fact, in the embodiment, the membrane connector 150 is disposed between the first composite member 140 and the second composite member 180, that is, the upper membrane 20 and the lower membrane 30 on the first composite strip are connected during the process of conveying the first composite strip from the first composite member 140 to the second composite member 180.
In addition, in this embodiment, the membrane connector 150 is a heat sealing device, and in the process of conveying the first composite material tape from the first composite assembly 140 to the second composite assembly 180, the heat sealing device performs heat sealing on the upper membrane 20 and the lower membrane 30 at intervals of one sheet width, so that the upper membrane 20 and the lower membrane 30 are connected between two adjacent first pole piece units 11.
In other embodiments, when the diaphragm coupling member 150 is disposed at this position, other devices capable of directly coupling the upper diaphragm 20 and the lower diaphragm 30 may be used, for example, the diaphragm coupling member 150 may also be a laser welder, and the laser welder performs laser breakdown on the upper diaphragm 20 and the lower diaphragm 30 at a distance of one piece width to couple the upper diaphragm 20 and the lower diaphragm 30.
Referring to fig. 3, fig. 3 is a schematic mechanism diagram of a sheet making mechanism 100 according to a third embodiment.
The present embodiment provides a sheeting mechanism 100 that differs from the second embodiment in that a membrane connector 150 is provided on the discharge side of the second composite assembly 180 for connecting the upper membrane 20 and the lower membrane 30 on the second composite strip at a location between any adjacent two first pole piece units 11.
Similarly, in the present embodiment, the diaphragm coupling member 150 is a heat sealing device, and in other embodiments, when the diaphragm coupling member 150 is disposed at this position, other devices capable of directly connecting the upper diaphragm 20 and the lower diaphragm 30, such as a laser welder, may be used.
Referring to fig. 4 and 5, fig. 4 is a schematic structural view before the second composite tape lamination, and fig. 5 is a schematic structural view after the second composite tape lamination.
Therefore, through the processing and preparation of the sheet making mechanism 100 provided by the utility model, the upper-layer diaphragm 20 and the lower-layer diaphragm 30 are connected at the position between the adjacent first pole piece units 11, and the diaphragm positioned at the inner layer can not be reversely folded in a laminated state, so that the performance and the safety of the battery are improved.
Therefore, the sheet making mechanism 100 that this embodiment provided can avoid the reverse book of lamination in-process diaphragm to turn over, and then promotes the yields of battery production, guarantees that the battery performance is qualified, promotes the security.
An embodiment of the present invention further provides a battery cell production apparatus, where the battery cell production apparatus includes a lamination machine and any one of the three aforementioned sheet-making mechanisms 100, and the lamination machine is configured to laminate the second composite material tapes prepared by the sheet-making mechanisms 100, so as to obtain a lamination structure shown in fig. 5.
Consequently, the electric core apparatus for producing that this embodiment provided can avoid the reverse book of folding of lamination in-process diaphragm to turn over, and then promotes the yields of battery production, guarantees that the battery performance is qualified, promotes the security.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a film-making mechanism, its characterized in that, unreels subassembly, first slice subassembly, diaphragm including first pole piece, unreels subassembly, first composite assembly and diaphragm connecting piece, first pole piece unreels the subassembly and is used for unreeling first pole piece, first slice subassembly is used for cutting off first pole piece obtains a plurality of first pole piece units, diaphragm unreels the subassembly and is used for unreeling upper diaphragm and lower floor's diaphragm, first composite assembly is used for a plurality of first pole piece unit is the interval complex in proper order upper diaphragm with form first composite material area between the lower floor's diaphragm, the diaphragm connecting piece is used for making upper diaphragm with lower floor's diaphragm is at arbitrary adjacent two position connection between the first pole piece unit.
2. The sheeting mechanism according to claim 1, wherein the membrane connecting member is a dispenser, and the dispenser is disposed between the membrane unreeling assembly and the first composite assembly, and is configured to dispense at least one of the upper membrane and the lower membrane.
3. The sheeting apparatus defined in claim 1 wherein said membrane connector is positioned on the discharge side of said first composite assembly for connecting the position of said upper membrane and said lower membrane on said first composite strip between any adjacent two of said first pole piece units.
4. The sheeting apparatus defined in claim 3 wherein the membrane connector is a laser welder for laser breakdown of the upper and lower membranes on the first composite tape at a location between any adjacent two of the first pole piece units.
5. The sheeting mechanism of claim 3 wherein said membrane connector is a heat seal device for heat sealing the position of said upper membrane and said lower membrane on said first composite strip between any adjacent two of said first pole piece units.
6. The sheeting apparatus as claimed in claim 1, further comprising a second pole piece unwinding assembly, a second slicing assembly, and a second combining assembly, wherein the second pole piece unwinding assembly is configured to unwind a second pole piece, the second slicing assembly is configured to cut the second pole piece multiple times to obtain a plurality of second pole piece units, and the second combining assembly is configured to combine a plurality of the second pole piece units on the first compound material tape to form a second compound material tape.
7. The sheeting mechanism of claim 6 wherein said membrane connector is disposed between said first composite assembly and said second composite assembly for connecting said upper membrane to said lower membrane on said first composite strip at a location between any adjacent two of said first pole piece units.
8. The sheeting mechanism of claim 6 wherein said membrane connector is disposed on the discharge side of said second composite assembly, said membrane connector being adapted to connect the upper membrane to the lower membrane on said second composite strip at a location between any adjacent two of said first pole piece units.
9. A cell production apparatus, characterized by comprising the sheeting mechanism of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220144731.3U CN216793768U (en) | 2022-01-19 | 2022-01-19 | Film-making mechanism and cell production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220144731.3U CN216793768U (en) | 2022-01-19 | 2022-01-19 | Film-making mechanism and cell production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216793768U true CN216793768U (en) | 2022-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220144731.3U Active CN216793768U (en) | 2022-01-19 | 2022-01-19 | Film-making mechanism and cell production device |
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| Country | Link |
|---|---|
| CN (1) | CN216793768U (en) |
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- 2022-01-19 CN CN202220144731.3U patent/CN216793768U/en active Active
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