CN113002852A - Film pasting mechanism and device for soft package battery and film pasting method - Google Patents
Film pasting mechanism and device for soft package battery and film pasting method Download PDFInfo
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- CN113002852A CN113002852A CN202110340060.8A CN202110340060A CN113002852A CN 113002852 A CN113002852 A CN 113002852A CN 202110340060 A CN202110340060 A CN 202110340060A CN 113002852 A CN113002852 A CN 113002852A
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- battery
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- soft package
- package battery
- film sticking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B33/00—Packaging articles by applying removable, e.g. strippable, coatings
- B65B33/02—Packaging small articles, e.g. spare parts for machines or engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B41/00—Supplying or feeding container-forming sheets or wrapping material
- B65B41/12—Feeding webs from rolls
- B65B41/16—Feeding webs from rolls by rollers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to a film sticking mechanism and device for a soft package battery and a film sticking method, wherein the film sticking mechanism for the soft package battery is used for sticking a protective film on the surface of the soft package battery and comprises a battery bearing part and a rolling part, the battery bearing part is provided with a battery accommodating cavity with an open top, and an inflating unit for an external inflating device to inflate an aluminum plastic film shell of the soft package battery is arranged on the battery bearing part. The roll-pressing part comprises a driving unit and a press roll arranged on the driving end of the driving unit, the press roll can be elastically deformed in the radial direction, and can perform preset film pasting motion under the driving of the driving unit so as to attach the protective film to the surface of the aluminum plastic film shell. According to the film sticking mechanism for the soft package battery, the inflation unit is arranged, and the compression roller capable of elastically deforming in the radial direction is adopted, so that the protective film can be effectively stuck to the surface of the aluminum plastic film shell, bubbles can be effectively prevented from being generated, the aluminum plastic film shell can be prevented from deforming, and better sticking quality can be obtained.
Description
Technical Field
The invention relates to the technical field of manufacturing equipment of a soft package battery, in particular to a film sticking mechanism of the soft package battery, and also relates to a film sticking device of the soft package battery with the film sticking mechanism of the soft package battery and a film sticking method utilizing the film sticking mechanism of the soft package battery.
Background
The soft package battery is one of mainstream systems parallel to battery structures such as a cylinder, an aluminum shell and a plastic shell, and is widely applied to the fields of digital products, power and energy storage. The soft package lithium battery mainly comprises a positive electrode material, a negative electrode material, a diaphragm, electrolyte and an aluminum plastic film coated on the outermost layer. Because polymer laminate polymer battery dashes the pit shaping and is mostly the curved surface, the outmost nylon layer of plastic-aluminum membrane is in battery manufacturing process, easily by the machine fish tail, and lead to having the weeping, by the corrosion scheduling problem of electrolyte, consequently, pastes the protection film at laminate polymer battery's the outmost of plastic-aluminum membrane.
At present, the film is mainly pasted by adopting the following methods, one is that a protective film is pressed by a pair of rollers, the parallelism of the protective film cannot be ensured in the method because of the pressing by the pair of rollers, and the pair of rollers are generally made of soft rubber materials and are easy to adhere with foreign matters. The other method is to adopt a vacuum adsorption protective film to paste the film, the positioning effect is poor when the protective film is adsorbed, and the curved surface stress on the surface of the aluminum plastic film is uneven when the film is pressed, so that the film pasting quality is poor. And the third method is that the protective film is adsorbed on the pair roller in advance, when the battery passes through the gap between the pair roller, the speed is controlled, the battery advances along with the battery, and the film pasting is completed step by step, so that the method easily causes the deformation of the aluminum plastic film and easily generates various bubbles.
Disclosure of Invention
In view of this, the present invention is directed to a film pasting mechanism for a pouch battery, which can improve the pasting quality of a protection film on an aluminum plastic film casing.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a laminate polymer battery pad pasting mechanism for at laminate polymer battery's surface mounting protection film, laminate polymer battery pad pasting mechanism includes:
the battery bearing part is provided with a battery accommodating cavity with an opening at the top, and an inflating unit for an external inflating device to inflate the aluminum plastic film shell of the soft package battery is arranged on the battery bearing part;
and the rolling part comprises a driving unit and a pressing roller arranged on the driving end of the driving unit, the pressing roller can be elastically deformed in the radial direction, and under the driving of the driving unit, the pressing roller executes preset film pasting motion so as to paste the protection film on the surface of the aluminum plastic film shell.
Furthermore, the battery containing cavity and the part of the inflated soft package battery in the battery containing cavity are arranged along with the shape.
Further, the battery accommodating cavity is formed by punching pits.
Furthermore, the battery bearing part is provided with a vacuumizing unit which is communicated with an external vacuumizing device to vacuumize the battery accommodating cavity.
Furthermore, the battery bearing part comprises a lower seat body and an upper seat body connected with the lower seat body, and the upper seat body after connection can compress the edge part of the aluminum-plastic film shell.
Furthermore, the compression roller is a plurality of compression rollers arranged side by side, the compression roller comprises a main body connected with the driving end and a sponge layer coated outside the main body, and the main body is made of carbon fibers.
Further, the thickness of the sponge layer is 3-10 mm.
Furthermore, the driving unit comprises a longitudinal driving device and a transverse driving device arranged on the driving end of the longitudinal driving device, and the press roller is arranged on the driving end of the transverse driving device.
Further, laminate polymer battery pad pasting mechanism still includes with being located in the battery holds the chamber laminate polymer battery carries out the upset portion of upset.
Compared with the prior art, the invention has the following advantages:
according to the film sticking mechanism for the soft package battery, the inflating unit for the external inflating device to inflate the aluminum-plastic film shell is arranged on the battery bearing part, and the pressing roller capable of elastically deforming in the radial direction is adopted, so that the protective film can be effectively stuck to the surface of the aluminum-plastic film shell under the extrusion of the pressing roller, bubbles can be effectively prevented from being generated, the aluminum-plastic film shell can be prevented from deforming, and better sticking quality can be obtained.
In addition, the part of the battery accommodating cavity and the inflated soft package battery in the battery accommodating cavity is arranged along with the shape, so that the situation that the inflation inlet aluminum plastic film shell is not deformed to influence the pit flushing quality can be guaranteed. And be equipped with on the battery bearing part and hold the evacuation unit of intracavity evacuation with the outside evacuating device of intercommunication, not only can place when the battery holds the intracavity in laminate polymer battery, prevent effectively that the plastic-aluminum membrane casing from taking place to warp, also can improve laminate polymer battery's fixed effect simultaneously.
In addition, the upper seat body after will connecting constitutes the compressing tightly to plastic-aluminum membrane casing edge part, can improve laminate polymer battery's fixed effect. Through at the outer cladding sponge layer of main part, can improve the radial elastic deformation effect of compression roller to can improve the pad pasting quality. The turning part is arranged, so that the film sticking of the film sticking mechanism to the other side of the aluminum-plastic film shell can be conveniently realized.
Another objective of the present invention is to provide a film sticking device for a pouch battery, which includes an unwinding mechanism for unwinding a protection film, the film sticking mechanism for a pouch battery as described above located downstream of the unwinding mechanism, and a cutting mechanism disposed adjacent to the film sticking mechanism for a pouch battery to cut off the protection film.
According to the film sticking device for the soft-package battery, the film sticking mechanism for the soft-package battery is adopted, so that bubbles can be effectively prevented from being generated after film sticking, the aluminum plastic film shell can be prevented from deforming, and better sticking quality can be obtained, so that a better using effect can be achieved.
In addition, the invention also relates to a film pasting method of the film pasting mechanism of the soft package battery, and the film pasting method comprises the following steps: and inflating the soft package battery to ensure that the soft package battery is attached to the protective film, and executing preset film attaching action through the pressure roller to attach the protective film to the surface of the aluminum-plastic film shell.
The film pasting method is simple to operate, and can improve the pasting quality of the protective film on the aluminum plastic film shell.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a film sticking mechanism of a pouch battery according to an embodiment of the invention;
fig. 2 is an exploded view of a film sticking mechanism of a pouch battery according to an embodiment of the invention;
FIG. 3 is a distribution diagram of the pumping channel on the lower seat according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a film sticking device for a pouch battery according to an embodiment of the invention.
Description of reference numerals:
1. a lower seat body; 101. an air extraction channel; 2. an upper base body; 3. a pouch cell; 4. a compression roller; 5. a protective film; 6. a connecting assembly; 7. an unwinding mechanism; 8. a tension control mechanism; 9. a deviation rectifying mechanism; 10. a cutting mechanism; 11. a film pulling mechanism; 12. a turning part.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The embodiment relates to a laminate polymer battery pad pasting mechanism for paste the protection film on laminate polymer battery's surface, on overall structure, it mainly includes battery bearing part and roll-in portion. Wherein, the battery bearing part has the open battery in top and holds the chamber to be equipped with the unit of aerifing that supplies outside aerating device to aerify in laminate polymer battery's plastic-aluminum membrane casing on the battery bearing part. The roll-pressing part comprises a driving unit and a press roll arranged on the driving end of the driving unit, the press roll can be elastically deformed in the radial direction, and can perform preset film pasting motion under the driving of the driving unit so as to attach the protective film to the surface of the aluminum plastic film shell.
The laminate polymer battery pad pasting mechanism of this embodiment supplies outside aerating device to the interior gas cell of plastic-aluminum membrane casing through setting up on the battery bearing part to but adopt radial elastic deformation's compression roller, can be under the extrusion of compression roller from this, make the surface of protection film and plastic-aluminum membrane casing effectively laminate, thereby can effectively avoid the gassing, and can prevent that plastic-aluminum membrane casing from taking place to warp, and then can obtain better laminating quality.
Based on the above design concept, an exemplary structure of the film sticking mechanism for the pouch battery of the present embodiment is as shown in fig. 1 and fig. 2, in order to improve the fixing effect on the pouch battery 3, the battery carrying part of the present embodiment includes a lower seat body 1 and an upper seat body 2 detachably connected to the lower seat body 1, and the connected upper seat body 2 can form a compression on the edge portion of the aluminum-plastic film casing. Wherein, the lower seat body 1 and the upper seat body 2 can be connected in a conventional detachable way. And in order to improve the film pasting effect, the upper seat body 2 is preferably arranged along with the aluminum-plastic film shell on one side for compressing the edge of the aluminum-plastic film shell.
Still as shown in fig. 1, the above-mentioned inflation unit specifically includes an inflation channel constructed on the lower seat body 1, and a connection assembly 6 provided at a channel port of the inflation channel for connection with an external inflation device. The inflation channel is specifically arranged corresponding to the non-packaged surface of the soft package battery 3 so as to inflate gas into the aluminum-plastic film shell through the side surface, and the gas can be specifically oil-free compressed air or nitrogen. It is understood that the inflation channel may be formed on the upper seat 2, or formed by the upper seat 2 and the lower seat 1, in addition to the lower seat 1, but the sealing property of the inflation channel is considered.
In addition, for guaranteeing that the aluminum-plastic film shell does not deform after inflation and influence the quality of the punched hole, the battery accommodating cavity and the part of the soft package battery 3 after inflation, which is located in the battery accommodating cavity, are arranged along with the shape, and the punching hole forming can be specifically adopted. When the specific design is implemented, the aluminum-plastic film shell can be inflated firstly, and then the battery accommodating cavity is constructed according to the shape of the inflated aluminum-plastic film shell. And in order to prevent the aluminum plastic film shell from cracking during inflation, the inflation pressure can be limited to be 0.05 MPa-0.2 MPa.
In this embodiment, be equipped with on the battery supporting part and hold the evacuation unit of intracavity evacuation with the outside evacuating device of intercommunication, so set up, not only can place when the battery holds the intracavity in laminate polymer battery 3, prevent effectively that the plastic-aluminum membrane casing from taking place to warp, also can improve laminate polymer battery 3's fixed effect simultaneously, and then can improve the pad pasting effect. As shown in fig. 3, as a possible implementation, the vacuum pumping unit of the present embodiment specifically includes a plurality of pumping channels 101 configured on the lower seat body 1, and the plurality of pumping channels 101 are arranged substantially uniformly corresponding to the battery receiving cavities. Obviously, the pumping channel 101 can be adapted according to the specific situation, besides the distribution structure shown in fig. 3.
The driving unit comprises a longitudinal driving part capable of outputting longitudinal displacement and a transverse driving part which is arranged at the driving end of the longitudinal driving part and capable of outputting transverse displacement, and the press roller 4 is arranged at the driving end of the transverse driving part. The longitudinal driving part can specifically adopt a linear motor which is longitudinally arranged, and the transverse driving part can adopt a linear motor which is transversely arranged. Of course, the driving unit can also directly adopt the existing two-axis servo module.
In addition, the number of the press rolls 4 in this embodiment is several, and as a possible implementation manner, as shown in fig. 1 and fig. 2, the number of the press rolls 4 is specifically two, and each press roll 4 includes a main body connected to the driving end, and a sponge layer coated outside the main body, and the press rolls 4 can be elastically deformed in the radial direction due to the coating of the sponge layer. Wherein the main body is made of carbon fiber, and the sponge layer has a thickness of 3-10mm, such as 3mm, 5mm, 8mm, 10mm, etc. Here, it is understood that the main body may be made of other materials having a certain hardness, besides carbon fiber.
In addition, in order to further improve the use effect, the pouch battery film sticking mechanism of the present embodiment further includes an overturning portion 12 for overturning the pouch battery 3 located in the battery accommodating cavity. The turning part 12 may be a vane-type swing cylinder, and the structure of the clamping part for clamping the pouch battery 3 may be the same as the turning mechanism of the existing film sticking device.
In addition, the present embodiment further relates to a film laminating apparatus for a pouch battery, as shown in fig. 4, which includes an unwinding mechanism 7 for unwinding the protective film 5, the film laminating mechanism for a pouch battery as described above located at the downstream of the unwinding mechanism 7, and a cutting mechanism 10 disposed adjacent to the film laminating mechanism for a pouch battery for cutting off the protective film 5. And in order to improve the film sticking effect, the unwinding mechanism 8 and the cutting mechanism 10 are further provided with a tension control mechanism 8 and a deviation correcting mechanism 9, and the downstream of the press roller 4 is provided with a film pulling mechanism 11, wherein each mechanism can refer to the prior art, and is not described herein again.
In addition, the embodiment also relates to a film pasting method of the film pasting mechanism of the soft package battery, the film pasting method is used for inflating the soft package battery so as to enable the soft package battery to be pasted with the protective film, and then the protective film is pasted on the surface of the aluminum plastic film shell by executing a preset film pasting action through the pressure roller.
Specifically, the surface of the aluminum-plastic film shell of the soft package battery 3 is subjected to pretreatment such as dust removal, flaw detection, static electricity removal and the like; then put into laminate polymer battery pad pasting mechanism's battery with laminate polymer battery 3 and hold the intracavity to make upper base body 2 compress tightly laminate polymer battery 3 after, begin to aerify. Meanwhile, the pressing roller 4 moves down longitudinally under the driving of the driving unit so that the protective film 5 is attached to the aluminum-plastic film shell, and the pressure applied to the pressing roller 4 by the driving unit can be obtained by the inflation pressure and a closed-loop feedback system formed by the pressure, which can refer to the existing design. And then, the driving unit drives the press roller 4 to move transversely to complete the film pasting on the upper side surface of the aluminum plastic film shell, and the cutting mechanism 10 is used for cutting the protective film 5. Finally, after the soft package battery 3 is turned over by the turning part 12, the film pasting on the lower side surface of the aluminum plastic film shell can be completed by repeating the above procedures.
The film pasting method of the invention utilizes the film pasting mechanism to paste the film, thereby not only having simple operation, but also effectively avoiding the generation of bubbles after film pasting, and preventing the aluminum plastic film shell from deforming, and being capable of obtaining better pasting quality, thereby having better use effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a laminate polymer battery pad pasting mechanism for at the surface paste protection film (5) of laminate polymer battery (3), its characterized in that, laminate polymer battery pad pasting mechanism includes:
the battery bearing part is provided with a battery accommodating cavity with an opening at the top, and an inflating unit for an external inflating device to inflate the aluminum-plastic film shell of the soft package battery (3) is arranged on the battery bearing part;
the roll extrusion portion comprises a driving unit and a press roller (4) arranged on the driving end of the driving unit, the press roller (4) can be elastically deformed in the radial direction, and under the driving of the driving unit, the press roller (4) executes preset film pasting motion so as to enable the protection film (5) to be pasted on the surface of the aluminum plastic film shell.
2. The film sticking mechanism for the soft package battery according to claim 1, characterized in that: the battery containing cavity and the part of the inflated soft package battery (3) in the battery containing cavity are arranged along with the shape.
3. The film sticking mechanism for the soft package battery according to claim 1, characterized in that: the battery bearing part is provided with a vacuumizing unit which is communicated with an external vacuumizing device to vacuumize the battery accommodating cavity.
4. The film sticking mechanism for the soft package battery according to claim 1, characterized in that: the battery bearing part comprises a lower seat body (1) and an upper seat body (2) connected with the lower seat body (1), and the upper seat body (2) can compress the edge part of the aluminum plastic film shell after connection.
5. The film sticking mechanism for the soft package battery according to claim 1, characterized in that: the pressing roller (4) is a plurality of pressing rollers arranged side by side, the pressing roller (4) comprises a main body connected with the driving end and a sponge layer coated outside the main body, and the main body is made of carbon fibers.
6. The film sticking mechanism for the soft package battery according to claim 5, is characterized in that: the thickness of the sponge layer is 3-10 mm.
7. The film sticking mechanism for the soft package battery according to claim 1, characterized in that: the driving unit comprises a longitudinal driving device and a transverse driving device arranged on the driving end of the longitudinal driving device, and the press roller (4) is arranged on the driving end of the transverse driving device.
8. The film sticking mechanism for the laminate battery according to any one of claims 1 to 7, which is characterized in that: laminate polymer battery pad pasting mechanism still include with being located in the battery holds the chamber laminate polymer battery (3) carry out the upset portion of upset.
9. The utility model provides a laminate polymer battery pad pasting device which characterized in that: the flexible package battery film sticking mechanism comprises an unwinding mechanism for unwinding a protective film (5), the flexible package battery film sticking mechanism located at the downstream of the unwinding mechanism and according to any one of claims 1 to 8, and a cutting mechanism arranged adjacent to the flexible package battery film sticking mechanism and used for cutting off the protective film (5).
10. A film sticking method of a film sticking mechanism of a soft package battery is characterized by comprising the following steps: and inflating the soft package battery to ensure that the soft package battery is attached to the protective film, and executing preset film attaching action through the pressure roller to attach the protective film to the surface of the aluminum-plastic film shell.
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| CN202110340060.8A CN113002852B (en) | 2021-03-30 | 2021-03-30 | Film pasting mechanism and device for soft package battery and film pasting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110340060.8A CN113002852B (en) | 2021-03-30 | 2021-03-30 | Film pasting mechanism and device for soft package battery and film pasting method |
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| CN113002852A true CN113002852A (en) | 2021-06-22 |
| CN113002852B CN113002852B (en) | 2022-05-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115692818A (en) * | 2022-11-04 | 2023-02-03 | 天津大学 | Aluminum-plastic film packaging device for soft package battery |
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| CN111086315A (en) * | 2019-12-31 | 2020-05-01 | 苏州曦寰凯科技有限公司 | Laminating device and laminating frock of curved surface apron |
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| CN115692818A (en) * | 2022-11-04 | 2023-02-03 | 天津大学 | Aluminum-plastic film packaging device for soft package battery |
| CN115692818B (en) * | 2022-11-04 | 2024-03-26 | 天津大学 | Plastic-aluminum membrane packaging hardware of soft packet of battery |
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