CN220425641U - Spraying device for uniformly spraying lithium battery diaphragm - Google Patents
Spraying device for uniformly spraying lithium battery diaphragm Download PDFInfo
- Publication number
- CN220425641U CN220425641U CN202323308102.3U CN202323308102U CN220425641U CN 220425641 U CN220425641 U CN 220425641U CN 202323308102 U CN202323308102 U CN 202323308102U CN 220425641 U CN220425641 U CN 220425641U
- Authority
- CN
- China
- Prior art keywords
- spraying
- lithium battery
- battery separator
- separator according
- supply unit
- 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.)
- Active
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 64
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 8
- 239000002033 PVDF binder Substances 0.000 description 7
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000007761 roller coating Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009423 ventilation 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
- Battery Electrode And Active Subsutance (AREA)
Abstract
The application provides a spraying device of even spraying lithium cell diaphragm, including supply unit and spraying unit, supply unit is including the tertiary filter equipment that can separate into different particle diameters with thick liquids filtration, tertiary filter equipment contains the filter screen of upper strata agitating unit and the different mesh numbers of lower floor, the spraying unit includes the carousel structure, the carousel structure is including coaxial disk body and the apron of arranging, the disk body defines the holding tank, the holding tank is used for accepting the thick liquids after the separation of supply unit output, the outer fringe evenly distributed of holding tank has the draw-in groove, the outer fringe of apron is equipped with the picture peg that corresponds the joint with the draw-in groove, form effective flow area adjustable runner between adjacent two picture peg and the disk body. This application optimizes the improvement to current flush coater, can prepare the thick liquids of the even different particle diameters of dispersion through the filtration separation of supply unit, and the thick liquids after the separation are spouted through the runner on the carousel structure, have improved the homogeneity of spraying, through setting up the runner as effective flow area adjustable, have enlarged application scope.
Description
Technical Field
The application relates to the technical field of spraying machines, in particular to a spraying device for uniformly spraying a lithium battery diaphragm.
Background
The existing two common coating modes of polyvinylidene fluoride (PVDF) coating films for lithium battery diaphragms comprise roller coating and spraying, but due to the small particle size of PVDF, the roller coating is easy to have the defects of powder falling, large ventilation increment, uneven surface density and the like, thereby influencing the performance of assembled lithium batteries, and in addition, the ultra-thin PVDF coating is difficult to manufacture due to the defect of micro gravure roller coating; and the spraying is to atomize the liquid material into tiny fog drops under high-speed frequency rotation, and spray the tiny fog drops through centrifugal force, so that the material formed into the fog drops can be uniformly settled on the surface of the base material at the side edge, and the effect of film spraying/film coating is achieved.
The existing PVDF spraying diaphragm is characterized in that PVDF material is sprayed on the surface of a PP/PE base film, but the spraying uniformity and the spraying point size are random uncontrollable, so that the uniformity of a PVDF coating is poor, multiple spraying is possibly required for ensuring the uniformity of spraying, the production and manufacturing cost is high, the production speed is low, the patent with the publication number of CN217856766U discloses a rotary table and a spraying machine, a containing groove is communicated with a plurality of cutting flow passages, a spraying agent in the containing groove can be effectively cut through the plurality of cutting flow passages and enters the cutting flow passages in the rotary table rotating process, and the spraying agent can be uniformly sprayed out from the cutting flow passages in a radial arrangement mode through the cutting flow passages.
However, in the use process of the patent, the effective flow area of the cutting flow channel is fixed, so that the injection quantity of the spraying machine is difficult to adjust, the uniformity of the spraying agent material is difficult to control, and the application range is effective. To this end, the inventors propose a spraying device for uniformly spraying a lithium battery separator.
Disclosure of Invention
The utility model aims at providing a spraying device of even spraying lithium cell diaphragm, it can improve the homogeneity of spraying, has the advantage that application scope is wide.
Embodiments of the present application are implemented as follows:
the application provides a spraying device of even spraying lithium cell diaphragm, including supply unit and spraying unit, supply unit is including the tertiary filter equipment that can separate into different particle diameters with thick liquids filtration, tertiary filter equipment contains the filter screen of upper strata agitating unit and the different mesh numbers of lower floor, the spraying unit includes the carousel structure, the carousel structure is including coaxial disk body and the apron of arranging, the disk body defines the holding tank, the holding tank is used for accepting the thick liquids after the separation of supply unit output, the outer fringe evenly distributed of holding tank has the draw-in groove, the outer fringe of apron is equipped with the picture peg that corresponds the joint with the draw-in groove, form effective flow area adjustable runner between adjacent two picture peg and the disk body.
In an alternative embodiment, the three-stage filtering device comprises a stirring device arranged on the top layer inside the tank body and a filter screen sequentially arranged inside the tank body from bottom to top.
In an alternative embodiment, the bottom of the tray is provided with a rotating shaft connected to the drive shaft.
In an alternative embodiment, the clamping grooves are arranged in the radial direction of the disc body as a whole.
In an alternative embodiment, the clamping groove is arranged in parallel to the axis of the tray body as a whole.
In an alternative embodiment, the insert plate is arranged in parallel to the axis of the cover plate as a whole.
In an alternative embodiment, a support plate is provided on the inner edge of the cover plate.
In an alternative embodiment, the support plate is arranged entirely in the diameter direction of the cover plate.
In an alternative embodiment, an adjusting rod screwed with the tray body is rotatably connected to the supporting plate.
In an alternative embodiment, the adjustment rod is arranged vertically with respect to the support plate as a whole.
The beneficial effects of this application are: the slurry with different particle diameters can be prepared through the filtration and separation of the supply unit, the separated slurry is sprayed out through the flow passage on the turntable structure, the uniformity of spraying is improved, and the application range is enlarged by setting the flow passage to be adjustable in effective flow area.
Drawings
Exemplary embodiments of the present application will be described in detail below with reference to the attached drawings, and it should be understood that the embodiments described below are only for the purpose of explaining the present application and not limiting the scope of the present application, wherein:
FIG. 1 is a schematic illustration of a spray device for uniformly spraying a lithium battery separator according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a turntable structure according to an embodiment of the present application;
FIG. 3 is a top view of a tray according to an embodiment of the present application;
FIG. 4 is a schematic view of a cover plate according to an embodiment of the present application;
reference numerals:
1. a supply unit;
2. a spraying unit;
3. a turntable structure;
101. a tank body;
102. a stirring mechanism;
103. a filter screen;
104. a gasket;
105. a bolt;
10. a tray body;
20. a cover plate;
30. a drive shaft;
11. a receiving groove;
12. a clamping groove;
13. a rotating shaft;
21. inserting plate;
22. a support plate;
23. an adjusting rod;
24. and (5) limiting the nut.
Detailed Description
Example 1
Referring to fig. 1-4, in this embodiment, a spraying device for uniformly spraying a lithium battery separator includes a supply unit 1 and a spraying unit 2, the supply unit 1 is configured to filter and separate slurry into different particle sizes, the spraying unit 2 includes a turntable structure 3, the turntable structure 3 includes a disc body 10 and a cover plate 20 coaxially arranged, the disc body 10 defines a containing groove 11, the containing groove 11 is used for receiving separated slurry output by the supply unit 1, clamping grooves 12 are uniformly distributed on an outer edge of the containing groove 11, an insert plate 21 corresponding to the clamping grooves 12 is arranged on an outer edge of the cover plate 20, and an effective flow passage with an adjustable flow area is formed between two adjacent insert plates 21 and the disc body 10.
This application is through optimizing the improvement to current flush coater, can prepare the thick liquids of the even different particle diameters of dispersion through the filtration separation of supply unit 1, and the thick liquids after the separation are spouted through the runner on the carousel structure 3, have improved the homogeneity of spraying, through setting up the runner as effective flow area adjustable, have enlarged application scope.
It should be noted that, the supply unit 1 includes a tank 101, a stirring mechanism 102 is disposed at the top of the tank 101, the stirring mechanism 102 can stir slurry inside the tank 101, three layers of filter screens 103 are sequentially disposed inside the tank 101 from bottom to top, the filter screens 103 are fixedly connected inside the tank 101 through a gasket 104 and a bolt 105, specifically, the gasket 104 is integrally configured into a semicircle, the gasket 104 is fixedly connected on the inner wall of the tank 101 through the bolt 105, two gaskets 104 are disposed on the upper side and the lower side of the filter screen 103, and the two corresponding gaskets 104 are butted into a circle, and the filter screens 103 are integrally clamped between the upper side and the lower side of the gasket 104.
It should be further noted that, the three layers of filter screens 103 have different mesh numbers, and can filter and separate the slurry in the tank 101 into different particle sizes, and a feeding pipeline is arranged on the sidewall of the tank 101 below each layer of filter screen 103, and is used for conveying the slurry with different particle sizes to the corresponding spraying unit 2, and the spraying unit 2 comprises a return pipeline, and the return pipeline is used for conveying the residual materials generated in the spraying unit 2 into the tank 101 again, so as to realize recycling of the slurry.
In this embodiment, the turntable structure 3 includes a disc body 10 and a cover plate 20, the disc body 10 is integrally configured into a disc shape, a rotating shaft 13 connected with a driving shaft 30 is provided at the bottom of the disc body 10, as an example, the rotating shaft 13 and the disc body 10 are integrally configured, the disc body 10 is driven by the driving shaft 30 to rotate, the accommodating groove 11 is a lower groove formed on the top surface of the disc body 10, the clamping groove 12 is formed at the outer periphery of the accommodating groove 11 and uniformly distributed along the peripheral edge of the accommodating groove 11, the clamping groove 12 is integrally arranged along the radial direction of the disc body 10, and meanwhile, the clamping groove 12 is integrally arranged parallel to the axis of the disc body 10.
In addition, the cover plate 20 is integrally configured in a ring shape coaxially arranged with the tray body 10, the insert plate 21 is formed at the outer edge of the cover plate 20, and the insert plate 21 is integrally arranged in parallel with the axis of the cover plate 20, the insert plate 21 and the card slot 12 are in one-to-one correspondence, and the insert plate 21 can move in the axial direction of the tray body 10 inside the card slot 12, thereby changing the interval between the cover plate 20 and the tray body 10.
Further, a support plate 22 is provided on the inner edge of the cover plate 20, and the support plate 22 is disposed entirely along the diameter direction of the cover plate 20, an adjustment lever 23 is rotatably connected to the support plate 22 to be screwed with the disk 10, and the adjustment lever 23 is disposed entirely vertically to the support plate 22, and as an example, the adjustment lever 23 is disposed coaxially with the disk 10.
The adjusting rod 23 is a bolt, the nut of the bolt is abutted against the upper side of the supporting plate 22, the limit nut 24 is screwed on the bolt below the supporting plate 22, the limit nut 24 is abutted against the lower side of the supporting plate 22, the bolt can be rotatably locked on the supporting plate 22 by utilizing the limiting effect of the limit nut 24 and the nut, the lower end of the bolt is screwed on the axis of the tray 10, the screwing depth of the bolt in the tray 10 can be changed by rotating the bolt, the distance between the cover plate 20 and the tray 10 is changed, and the purpose of changing the area of a flow channel formed between two adjacent inserting plates 21 and the tray 10 is realized.
Although embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. The utility model provides a spraying device of even spraying lithium cell diaphragm, its characterized in that, includes supply unit and spraying unit, supply unit is including the tertiary filter equipment that can separate into different particle diameters with thick liquids filtration, tertiary filter equipment includes upper stirring device and the filter screen of lower floor's different mesh number, spraying unit includes the carousel structure, the carousel structure includes coaxial arrangement's disk body and apron, the disk body defines the holding tank, the holding tank is used for accepting the thick liquids after the separation of supply unit output, the outer fringe evenly distributed of holding tank has the draw-in groove, the outer fringe of apron be equipped with the picture peg of draw-in groove correspondence joint, adjacent two the picture peg with form effective flow area adjustable runner between the disk body.
2. The spraying device for uniformly spraying a lithium battery separator according to claim 1, wherein,
the three-stage filtering device comprises a stirring device arranged on the top layer inside the tank body and a filter screen sequentially arranged inside the tank body from bottom to top.
3. The spraying device for uniformly spraying a lithium battery separator according to claim 1, wherein,
the bottom of the tray body is provided with a rotating shaft connected with the driving shaft.
4. The spraying device for uniformly spraying a lithium battery separator according to claim 3,
the clamping grooves are integrally arranged along the radial direction of the disc body.
5. The spraying device for uniformly spraying a lithium battery separator according to claim 4, wherein,
the clamping grooves are integrally arranged in parallel with the axis of the disc body.
6. The spraying device for uniformly spraying a lithium battery separator according to claim 5, wherein,
the insert plate is arranged in parallel with the axis of the cover plate as a whole.
7. The spraying device for uniformly spraying a lithium battery separator according to claim 6, wherein,
and a supporting plate is arranged on the inner edge of the cover plate.
8. The spray device for uniformly spraying a lithium battery separator according to claim 7,
the support plate is integrally disposed along a diameter direction of the cover plate.
9. The spray device for uniformly spraying a lithium battery separator according to claim 8, wherein,
the supporting plate is rotatably connected with an adjusting rod which is screwed with the disc body.
10. The spray device for uniformly spraying a lithium battery separator according to claim 9,
the adjusting rod is arranged vertically to the supporting plate as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323308102.3U CN220425641U (en) | 2023-12-06 | 2023-12-06 | Spraying device for uniformly spraying lithium battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323308102.3U CN220425641U (en) | 2023-12-06 | 2023-12-06 | Spraying device for uniformly spraying lithium battery diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220425641U true CN220425641U (en) | 2024-02-02 |
Family
ID=89687866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323308102.3U Active CN220425641U (en) | 2023-12-06 | 2023-12-06 | Spraying device for uniformly spraying lithium battery diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220425641U (en) |
-
2023
- 2023-12-06 CN CN202323308102.3U patent/CN220425641U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |