CN219873597U - Preparation equipment for high-performance lithium battery current collector - Google Patents
Preparation equipment for high-performance lithium battery current collector Download PDFInfo
- Publication number
- CN219873597U CN219873597U CN202321327386.8U CN202321327386U CN219873597U CN 219873597 U CN219873597 U CN 219873597U CN 202321327386 U CN202321327386 U CN 202321327386U CN 219873597 U CN219873597 U CN 219873597U
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- China
- Prior art keywords
- current collector
- fixed frame
- lithium battery
- pet substrate
- inner cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims description 8
- 239000000758 substrate Substances 0.000 claims abstract description 60
- 229910052751 metal Inorganic materials 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 46
- 239000011888 foil Substances 0.000 claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 abstract description 15
- 239000011230 binding agent Substances 0.000 abstract description 10
- 238000005096 rolling process Methods 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 description 14
- 230000001070 adhesive effect Effects 0.000 description 14
- 238000013461 design Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model belongs to the technical field of lithium battery manufacturing equipment, and discloses high-performance lithium battery current collector manufacturing equipment, wherein four groups of supporting legs are fixed on the periphery of the bottom of a fixed frame, a PET substrate is stably conveyed through supporting rollers, a current collector binder is attached to the surface of a conveying pipe through a discharge hole, the PET substrate is smeared with the current collector binder when passing through the conveying pipe, then a metal foil is bonded to the surface of the PET substrate through the limitation of a limiting rod, then a rotating disc drives a positive and negative threaded rod to rotate, a movable frame at the upper and lower positions is driven by the positive and negative threaded rod to move towards the middle in a fixed frame, the movable frame drives a squeeze roller to squeeze a metal plate and the PET substrate, the squeezing force can be kept unchanged, the thickness of a same batch of composite current collector is basically the same, the current collector binder can be uniformly distributed between the metal foil and the PET substrate through the rolling of the squeeze roller, and the stability of the composite current collector is improved, and the performance of a lithium battery is improved.
Description
Technical Field
The utility model relates to the technical field of lithium battery manufacturing equipment, in particular to high-performance lithium battery current collector manufacturing equipment.
Background
The lithium battery current collector refers to a structure or a part for collecting current, and the lithium battery is mainly referred to as a metal foil, such as copper foil and aluminum foil. The general finger can also comprise a tab, and the composite current collector has the advantages of more stability, lower manufacturing cost and the like compared with the traditional pure metal current collector.
The composite current collector needs to be coated with the metal foil on both sides of the substrate, the substrate is used for replacing part of metal materials, the cost is reduced, the current collector is more stable, the metal foil and the substrate are bonded by using a current collector binder when the composite current collector is manufactured, the traditional processing mode is that double-layer metal foil is attached to the substrate coated with the current collector binder, then the metal foil is scraped to be flat by a scraper, and the current collector binder is unevenly distributed between the substrate and the metal foil due to the fact that the scraper is not uniformly applied with force, so that bulges appear in local positions, and the quality and the layering of the composite current collector are uneven, so that the performance of a lithium battery is influenced.
Disclosure of Invention
In order to achieve the above-mentioned object, the present utility model provides a high-performance lithium battery current collector preparation device, which solves the above-mentioned technical problems by means of various structural improvement designs.
The utility model provides the following technical scheme:
the utility model provides a high performance lithium cell mass flow body preparation equipment, includes the fixed frame, all be fixed with four groups supporting legs around the fixed frame bottom, the left side of fixed frame inner chamber all loops through the bearing rotation from a left side to the right side and is connected with the backing roll, the top of backing roll is provided with the PET substrate, the top and the bottom of fixed frame all are fixed with the backup pad, one side in the backup pad opposite directions is rotated through the bearing and is connected with the wind-up roll, the surface winding of wind-up roll has the metal foil, the top and the bottom of PET substrate are laminated to the one end of metal foil extend to the right side, the right side front and back position of fixed frame inner chamber is fixed with the mount, the inner chamber upper and lower position of mount is provided with movable frame, the inner chamber of movable frame is rotated through the bearing and is connected with the squeeze roll, the squeeze roll is located the upper and lower both sides of PET substrate, the inner chamber of mount is provided with adjusting part.
Preferably, the adjusting component comprises a thread sleeve embedded in the front surface and the back surface of one side of the movable frame, the inner cavity of the thread sleeve is in threaded connection with a positive and negative threaded rod, the positive and negative threaded rod rotates in the inner cavity of the fixed frame through a bearing, and the top of the positive and negative threaded rod penetrates through the fixed frame to extend upwards and is fixed with a rotary table.
Preferably, a limiting rod is fixed on the upper and lower positions of the inner cavity of the fixed frame, and the limiting rod is positioned on the outer side of the metal foil.
Preferably, the front of fixed frame has been seted up logical groove, and the inner chamber swing joint who leads to the groove has the conveyer pipe, the conveyer pipe runs through to the inner chamber of fixed frame and backward extension, the discharge gate has all been seted up in proper order in the past to the back in one side that the conveyer pipe is in opposite directions, the conveyer pipe is located the upper and lower both sides of PET substrate.
Preferably, the surface of the conveying pipe is sequentially sleeved with elastic bands from front to back, and the elastic bands are located at the front position and the rear position of the PET base material.
Preferably, the inner cavity of the fixing frame is provided with a sliding groove, the inner cavity of the sliding groove is connected with a sliding block in a sliding mode, and one side, opposite to the sliding block, of the sliding block penetrates through the sliding groove and is fixed on the front face and the back face of the movable frame.
Preferably, the right side of fixed frame is provided with the stoving case, PET substrate and metal foil all run through the stoving case and extend rightwards.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through reasonable structural improvement design, the PET substrate is stably conveyed by the supporting roller, the current collector binder is adhered to the surface of the conveying pipe through the discharge hole to form a coating, the thickness of the coating formed after the PET substrate is smeared with the current collector binder when passing through the conveying pipe is controlled within 2 micrometers, and the viscosity of the PET substrate are uniformly distributed on the surface of the PET material; then the metal foil is attached to the surface of the PET substrate through the limitation of the limiting rod, then the rotary table is rotated to drive the positive and negative threaded rods to rotate, the movable frame at the upper and lower positions is driven by the positive and negative threaded rods to move towards the middle in the fixed frame, the movable frame drives the extrusion roller to extrude the metal plate and the PET substrate, the extrusion force can be ensured to be unchanged, the thickness of the composite current collector in the same batch is basically the same, meanwhile, the current collector adhesive can be uniformly distributed between the metal foil and the PET substrate through the rolling of the extrusion roller, the stability of the composite current collector is improved, and the performance of a lithium battery is improved.
2. According to the utility model, the upper and lower conveying pipes can be limited through the elastic band, so that the conveying pipes are attached to the surface of the PET base material, and meanwhile, the elastic band has elasticity, and the positions of the conveying pipes can be automatically adjusted according to the thickness of the PET base material.
3. The limiting rod is positioned on the right side of the conveying pipe for conveying the current collector adhesive, the PET substrate surface is attached to the conveying pipe when passing through the conveying pipe, at the moment, when the metal foil is attached to the PET substrate, the metal foil is easily adsorbed on the PET substrate by being bonded by the current collector adhesive, the metal foil can be limited and attached to the surface of the PET substrate by using the limiting rod, the smoothness of the surface is ensured, and wrinkling, sagging and deformation cannot occur; the design overcomes the problems that the foil and the PET substrate are thinner and a tension adjusting device is usually required to be applied, and the special tension adjusting device is not required, and the metal foil is well prevented from wrinkling, sagging and deforming when being attached to the PET substrate through the cooperation of the limiting rod and other parts.
Drawings
Fig. 1 is a schematic view of the overall outline and three-dimensional structure of a current collector preparation apparatus according to an embodiment of the present utility model;
fig. 2 is a schematic view of a partial perspective structure of a current collector manufacturing apparatus according to an embodiment of the present utility model;
fig. 3 is a schematic diagram showing the assembly structure of a fixed frame and a movable frame of a fluid preparation apparatus according to an embodiment of the present utility model.
Reference numerals in the drawings: 1. a fixed frame; 2. a support roller; 3. a PET substrate; 4. a support plate; 5. a wind-up roll; 6. a metal foil; 7. a fixing frame; 8. a movable frame; 9. a squeeze roll; 10. an adjustment assembly; 101. a thread sleeve; 102. a positive and negative threaded rod; 103. a turntable; 11. a limit rod; 12. a delivery tube; 13. a discharge port; 14. an elastic band; 15. a chute; 16. a slide block; 17. and a drying box.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-3, the high-performance lithium battery current collector preparation equipment provided by the utility model is used for forming a production line together with other equipment and producing a composite current collector (carbon-coated foil) of a power lithium battery, and comprises a metal fixing frame 1, four groups of supporting legs are respectively fixed on the periphery of the bottom of the fixing frame 1, a supporting roller 2 is respectively and sequentially connected with the left side of an inner cavity of the fixing frame 1 from left to right through bearings in a rotating manner, a PET substrate 3 is arranged at the top of the supporting roller 2, supporting plates 4 are respectively and fixedly arranged at the top and the bottom of the fixing frame 1, a winding roller 5 is respectively connected with one side of the supporting plates 4 in the opposite direction through bearings in a rotating manner, a metal foil 6 is wound on the surface of the winding roller 5, one end of the metal foil 6 is attached to the top and the bottom of the PET substrate 3 and extends rightward, a fixing frame 7 is fixedly arranged at the front and back of the right side of the inner cavity of the fixing frame 1, a movable frame 8 is arranged at the upper and lower positions of the inner cavity of the fixing frame 7, a squeezing roller 9 is respectively connected with the inner cavity of the movable frame 8 through bearings in a rotating manner, the squeezing roller 9 is positioned at the upper and lower sides of the PET substrate 3, and the inner cavity of the fixing frame 7 is provided with an adjusting component 10;
the PET substrate 3 is stably conveyed through the supporting roller 2, the current collector adhesive is adhered to the surface of the conveying pipe 12 through the discharge hole 13, the current collector adhesive is smeared on the PET substrate 3 when passing through the conveying pipe 12, then the metal foil 6 is bonded to the surface of the PET substrate 3 through the limit of the limit rod 11, then the rotating turntable 103 drives the positive and negative threaded rod 102 to rotate, the movable frame 8 at the upper and lower positions is driven by the positive and negative threaded rod 102 to move towards the middle in the fixed frame 7, the movable frame 8 drives the extrusion roller 9 to extrude the metal plate and the PET substrate 3, the extrusion force can be ensured to be unchanged, the thickness of the composite current collector in the same batch is basically the same, meanwhile, the current collector adhesive can be uniformly distributed between the metal foil 6 and the PET substrate 3 through the rolling of the extrusion roller 9, the stability of the composite current collector is improved, and the performance of a lithium battery is improved.
The adjusting component 10 comprises a thread sleeve 101 embedded in the front surface and the back surface of one side of the movable frame 8 in the opposite direction, a front threaded rod 102 is connected with the inner cavity of the thread sleeve 101 in a threaded manner, the front threaded rod 102 rotates in the inner cavity of the fixed frame 7 through a bearing, the top of the front threaded rod 102 penetrates through the fixed frame 7 to extend upwards and is fixedly provided with a rotary table 103, the front threaded rod 102 is driven to rotate through the rotary table 103, the upper threads and the lower threads of the front threaded rod 102 can be used for enabling the upper movable frame 8 and the lower movable frame 8 to move in the opposite direction through the thread sleeve 101, the distance between the extrusion rollers 9 is adjusted, and the pressure applied on the metal foil 6 by the extrusion rollers 9 is kept unchanged all the time.
The upper and lower positions of the inner cavity of the fixed frame 1 are fixed with the limiting rods 11, the limiting rods 11 are located on the outer sides of the metal foils 6, the metal foils 6 are conveniently limited through the arrangement of the limiting rods 11, and the metal foils 6 are prevented from shaking due to light weight in the conveying process.
The front of fixed frame 1 has been seted up logical groove, and logical inslot cavity swing joint has conveyer pipe 12, and conveyer pipe 12 runs through to the inner chamber of fixed frame 1 and backward extension, and conveyer pipe 12 opposite side all has seted up discharge gate 13 in proper order in the past to the back, and conveyer pipe 12 is located the upper and lower both sides of PET substrate 3, can carry the mass flow body binder through conveyer pipe 12, then scribbles on the surface of PET substrate 3 through discharge gate 13.
The surface of conveyer pipe 12 all overlaps in proper order from front to back and is equipped with elastic cord 14, and elastic cord 14 is located the front and back position of PET substrate 3, can carry out spacingly to conveyer pipe 12 of upper and lower position through elastic cord 14, makes conveyer pipe 12 laminating at the surface of PET substrate 3, and elastic cord 14 has elasticity simultaneously, can be automatically according to the position of thickness adjustment conveyer pipe 12 of PET substrate 3.
The inner chamber of mount 7 has seted up spout 15, and the inner chamber sliding connection of spout 15 has slider 16, and slider 16 one side in opposite directions runs through spout 15 and is fixed in the front and the back of movable frame 8, slides at the inner chamber of spout 15 through slider 16, makes the embedded movable frame 8 of mount 7 can keep relative stability, can not lead to rocking about, can carry out height-adjusting again simultaneously.
The right side of fixed frame 1 is provided with stoving case 17, and PET substrate 3 and metal foil 6 all run through stoving case 17 and extend rightwards, can carry out the stoving processing to metal foil 6 and PET substrate 3 after the extrusion through stoving case 17, accelerates the solidification of current collector binder, avoids adhering to the metal foil 6 on PET substrate 3 again to separate.
When the PET substrate 3 is specifically used, a user places the PET substrate 3 at the top of the supporting roller 2, then pulls the metal foil 6 wound on the surface of the winding roller 5 to the surface of the PET substrate 3, the current collector adhesive is conveyed to the upper position and the lower position of the PET substrate 3 by utilizing the conveying pipe 12, then the current collector adhesive is smeared on the surface of the PET substrate 3 through the discharge hole 13, under the limit of the limiting rod 11, the metal foil 6 is attached to the PET substrate 3, then the turntable 103 is rotated, the turntable 103 drives the positive and negative threaded rod 102 to rotate, the positive and negative threaded rod 102 drives the upper and lower movable frame 8 to fold towards the middle through the thread bush 101, then the extrusion roller 9 arranged in the movable frame 8 pressurizes the metal foil 6 and the PET substrate 3, the extrusion roller 9 extrudes the metal foil 6 and the PET substrate 3 rightwards along with the PET substrate 3, the current collector adhesive can be uniformly dispersed in the extrusion process, the redundant current collector adhesive is discharged, the quality of the processed composite current collector is ensured to reach the standard, and then the drying box 17 is used for quickly solidifying the current collector adhesive.
According to the embodiment of the utility model, through practical tests, the PET substrate is stably conveyed through the supporting roller, the current collector adhesive is adhered to the surface of the conveying pipe through the discharge hole, the PET substrate is smeared with the current collector adhesive when passing through the conveying pipe, then the metal foil is bonded to the surface of the PET substrate through the limitation of the limiting rod, then the rotating disc drives the positive and negative threaded rods to rotate, the movable frame at the upper and lower positions is driven to move towards the middle in the fixed frame by the positive and negative threaded rods, the movable frame drives the extrusion roller to extrude the metal plate and the PET substrate, so that extrusion force can be kept unchanged, the thickness of a same batch of composite current collector is basically the same, meanwhile, the current collector adhesive can be uniformly distributed between the metal foil and the PET substrate through the rolling of the extrusion roller, the stability of the composite current collector is improved, and the performance of a lithium battery is improved; can be applied to the production of various power lithium battery composite current collectors.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a high performance lithium cell mass flow body preparation equipment, includes fixed frame (1), its characterized in that: four groups of supporting legs are fixed on the periphery of the bottom of the fixed frame (1), the left side of an inner cavity of the fixed frame (1) is connected with a supporting roller (2) through bearing rotation in turn, the top of the supporting roller (2) is provided with a PET base material (3), the top and the bottom of the fixed frame (1) are both fixed with a supporting plate (4), one side of the supporting plate (4) opposite to each other is connected with a winding roller (5) through bearing rotation, the surface of the winding roller (5) is wound with a metal foil (6), one end of the metal foil (6) is attached to the top and the bottom of the PET base material (3) and extends rightward, a fixing frame (7) is fixed on the front and rear of the right side of the inner cavity of the fixed frame (1), the upper and lower positions of the inner cavity of the fixing frame (7) are provided with a movable frame (8), the inner cavity of the movable frame (8) is connected with extrusion rollers (9) through bearing rotation, the extrusion rollers (9) are located on the upper side and the lower side of the PET base material (3), and the inner cavity of the fixing frame (7) is provided with an adjusting component (10).
2. The high performance lithium battery current collector manufacturing apparatus of claim 1, wherein: the adjusting component (10) comprises a threaded sleeve (101) embedded in the front surface and the back surface of one side of the movable frame (8) in the opposite direction, a positive and negative threaded rod (102) is connected with an inner cavity of the threaded sleeve (101) in a threaded manner, the positive and negative threaded rod (102) rotates in the inner cavity of the fixed frame (7) through a bearing, and the top of the positive and negative threaded rod (102) penetrates through the fixed frame (7) to extend upwards and is fixedly provided with a rotary table (103).
3. The high performance lithium battery current collector manufacturing apparatus of claim 1, wherein: and a limiting rod (11) is fixed on the upper and lower positions of the inner cavity of the fixed frame (1), and the limiting rod (11) is positioned on the outer side of the metal foil (6).
4. The high performance lithium battery current collector manufacturing apparatus of claim 1, wherein: the front of fixed frame (1) has been seted up logical groove, and the inner chamber swing joint who leads to the groove has conveyer pipe (12), conveyer pipe (12) run through to the inner chamber of fixed frame (1) and backward extension, all seted up discharge gate (13) in proper order in the past to the back in one side in opposite directions conveyer pipe (12), conveyer pipe (12) are located the upper and lower both sides of PET substrate (3).
5. The high performance lithium battery current collector manufacturing apparatus of claim 4, wherein: the surface of the conveying pipe (12) is sequentially sleeved with elastic bands (14) from front to back, and the elastic bands (14) are located at the front position and the rear position of the PET base material (3).
6. The high performance lithium battery current collector manufacturing apparatus of claim 1, wherein: the inner cavity of the fixing frame (7) is provided with a sliding groove (15), the inner cavity of the sliding groove (15) is connected with a sliding block (16) in a sliding mode, and one side, opposite to the sliding block (16), of the sliding block penetrates through the sliding groove (15) and is fixed on the front face and the back face of the movable frame (8).
7. The high performance lithium battery current collector manufacturing apparatus of claim 1, wherein: the right side of fixed frame (1) is provided with stoving case (17), PET substrate (3) and metal foil (6) all run through stoving case (17) and extend rightwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321327386.8U CN219873597U (en) | 2023-05-29 | 2023-05-29 | Preparation equipment for high-performance lithium battery current collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321327386.8U CN219873597U (en) | 2023-05-29 | 2023-05-29 | Preparation equipment for high-performance lithium battery current collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219873597U true CN219873597U (en) | 2023-10-20 |
Family
ID=88320741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321327386.8U Active CN219873597U (en) | 2023-05-29 | 2023-05-29 | Preparation equipment for high-performance lithium battery current collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219873597U (en) |
-
2023
- 2023-05-29 CN CN202321327386.8U patent/CN219873597U/en active Active
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