CN218849576U - Take winder of online gel mechanism - Google Patents
Take winder of online gel mechanism Download PDFInfo
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- CN218849576U CN218849576U CN202223107981.9U CN202223107981U CN218849576U CN 218849576 U CN218849576 U CN 218849576U CN 202223107981 U CN202223107981 U CN 202223107981U CN 218849576 U CN218849576 U CN 218849576U
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- liquid injection
- injection nozzle
- spraying
- gel
- gel electrolyte
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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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Abstract
The utility model discloses a winding machine with an on-line gel mechanism, which comprises an anode spraying mechanism and a cathode spraying mechanism, wherein a lamination mechanism is arranged between the anode spraying mechanism and the cathode spraying mechanism; the positive pole spraying mechanism comprises a sheet supply roll, a conveying belt is arranged above the sheet supply roll, and an upper liquid injection nozzle is arranged above the right side of the conveying belt; a lower liquid injection nozzle is arranged below the upper liquid injection nozzle; the upper liquid injection nozzle and the lower liquid injection nozzle are respectively communicated with a gel electrolyte storage tank through pipelines, and the pipelines are provided with screw pumps. The utility model has the advantages of simple structure, the gel spraying is even, the spraying is efficient, has simplified production technology simultaneously, has reduced equipment cost, has improved the security of production.
Description
Technical Field
The utility model relates to a lithium ion battery makes technical field, more specifically relates to a take winder of online gel mechanism.
Background
At present, lithium ion batteries are widely applied to the electronic fields of consumption, IT, communication and the like due to the advantages of high energy density, long cycle life, small self-discharge and the like.
The lithium ion battery is assembled by an anode, a cathode, a diaphragm and electrolyte, wherein the anode active material, the cathode active material and the diaphragm are immersed in the electrolyte. When the lithium ion battery is charged and discharged, and lithium ions are released and inserted between the positive electrode active material and the negative electrode active material, the electrolyte plays a medium role. The structure of the diaphragm is called microporous membrane, when the lithium ion battery is charged and discharged, the diaphragm plays the roles of isolating and insulating the positive electrode and the negative electrode, and the diaphragm which is impregnated with the electrolyte also plays the role of a lithium ion channel. The electrolyte is fully and uniformly infiltrated with the diaphragm and infiltrated with the positive and negative active substances, and is an important factor for the charge and discharge of the lithium ion battery.
When the existing lithium ion battery is produced, the energy density of the lithium ion battery needs to be improved, the winding of a battery cell material is required to be compact, and the winding of a compact battery cell brings difficulty to a liquid injection process. At present, the conventional liquid injection mode is liquid electrolyte with very low viscosity (equivalent to the viscosity of water), and battery liquid enters the battery by vacuumizing or applying positive pressure in a battery shell. However, the existing mode causes the phenomena of insufficient and uneven impregnation of electrolyte to the cell material in the cell to occur occasionally, which causes the problems of poor performance of the lithium ion battery, low potential safety hazard of the battery and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a take winder of online gel mechanism to solve the problem in the background art.
In order to solve the technical problem, the utility model adopts the following technical proposal.
A winding machine with an online gel mechanism comprises an anode spraying mechanism for spraying gel electrolyte on an anode piece and a cathode spraying mechanism for spraying gel electrolyte on a cathode piece, wherein a lamination mechanism for winding the anode piece and the cathode piece together after spraying the gel electrolyte is arranged between the anode spraying mechanism and the cathode spraying mechanism; the positive pole spraying mechanism comprises a positive pole piece supplying roll for supplying a positive pole piece, a conveying belt which has the same width as the positive pole piece and is used for conveying the positive pole piece is arranged above the positive pole piece supplying roll, and an upper liquid injection nozzle for spraying gel electrolyte on the upper surface of the positive pole piece is arranged above the right side of the conveying belt; a lower liquid injection nozzle which has the same structure as the upper liquid injection nozzle and is used for spraying gel electrolyte on the lower surface of the positive plate is arranged below the upper liquid injection nozzle; the upper liquid injection nozzle and the lower liquid injection nozzle are respectively communicated with a gel electrolyte storage tank through pipelines, and the pipelines are provided with screw pumps for controlling flow.
According to the technical scheme, the cathode spraying mechanism and the anode spraying mechanism are identical in structure and are symmetrically arranged.
According to the technical scheme, the sheet mechanism comprises an anode guide roller arranged on the left side and used for adjusting the direction of an anode sheet, and a cathode guide roller used for adjusting the direction of a cathode sheet is arranged on the right side of the anode guide roller; and a lamination roller for winding the positive plate and the negative plate together is arranged between the positive guide roller and the negative guide roller and above the positive guide roller and the negative guide roller.
According to the technical scheme, a collecting tank for receiving redundant gel electrolyte is arranged below the lamination roller.
According to the technical scheme, the upper liquid injection nozzle comprises a liquid storage box with a cavity arranged inside, and a liquid injection nozzle perpendicular to the running direction of the conveyor belt is arranged at the bottom of the liquid storage box; the length of the liquid injection nozzle is equal to that of the conveying belt.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model provides a take winder of online gel mechanism, through set up upper liquid injection nozzle, lower liquid injection nozzle respectively on the upper and lower sides of electrode slice, the gel electrolyte is the surface of even spraying to the electrode slice; the problems of difficult liquid seepage, long liquid seepage time, uneven liquid seepage and other process problems easily caused by a traditional liquid injection mode are solved, and the problem of poor battery performance caused by abnormal liquid seepage is also solved. The process flow of the battery is also from the original: winding (lamination) -assembling-baking-injecting-melting into partial volume, becoming: coating liquid-winding (lamination) -assembling-formation and partial volume; the steps of baking and liquid injection are omitted, and specific baking equipment and liquid injection equipment are also omitted. The utility model has the advantages of simple structure, the gel spraying is even, the spraying is efficient, has simplified production technology simultaneously, has reduced equipment cost, has improved the security of production.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of a part of the structure of the upper liquid injection nozzle, the electrode plate and the conveyor belt of the present invention;
wherein: 1. the device comprises a conveying belt, 2, a positive plate, 3, a negative plate, 4, an upper liquid injection nozzle, 41, a liquid injection nozzle, 5, a gel electrolyte storage tank, 6, a screw pump, 7, a lamination mechanism, 71, a positive guide roller, 72, a negative guide roller, 73, a lamination roller, 8, a lower liquid injection nozzle, 9, a collecting tank, 10 and a sheet supply roll.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A winding machine with an on-line gel mechanism is shown in a combined figure 1-2 and comprises a conveying belt 1, a positive plate 2, a negative plate 3, an upper liquid injection nozzle 4, a liquid injection nozzle 41, a gel electrolyte storage tank 5, a screw pump 6, a lamination mechanism 7, a lower liquid injection nozzle 8, a collecting tank 9 and a sheet supply roll. The lamination mechanism 7 includes a positive electrode guide roller 71, a negative electrode guide roller 72, and a lamination roller 73.
The positive electrode spraying mechanism is used for spraying gel electrolyte on the positive electrode plate 2. The positive electrode spraying mechanism comprises a sheet supply roll for supplying the positive electrode sheet 2. The conveying belt 1 is arranged above the sheet supply roll, and the conveying belt 1 is the same as the width of the positive plate 2 and is used for conveying the positive plate 2. An upper liquid injection nozzle 4 is arranged at the upper right of the conveyor belt 1 and used for spraying gel electrolyte on the upper surface of the positive plate 2. The upper liquid injection nozzle 4 comprises a liquid storage box with a cavity arranged inside, a liquid injection nozzle 41 perpendicular to the running direction of the conveyor belt 1 is arranged at the bottom of the liquid storage box, and the length of the liquid injection nozzle 41 is equal to that of the conveyor belt 1.
And a lower liquid injection nozzle 8 is arranged below the upper liquid injection nozzle 4, and the lower liquid injection nozzle 8 has the same structure as the upper liquid injection nozzle 4 and is used for spraying gel electrolyte on the lower surface of the positive plate 2. The upper liquid injection nozzle 4 and the lower liquid injection nozzle 8 are respectively communicated with a gel electrolyte storage tank 5 through pipelines, and the pipelines are provided with screw pumps 6 for controlling flow.
The cathode spraying mechanism and the anode spraying mechanism are identical in structure and are symmetrically arranged and used for spraying gel electrolyte on the cathode sheet 3.
And a lamination mechanism 7 is arranged between the anode spraying mechanism and the cathode spraying mechanism and is used for winding the anode plate 2 and the cathode plate 3 which are sprayed with the gel electrolyte together.
The lamination mechanism 7 includes a positive electrode guide roller 71 provided on the left side, and the positive electrode guide roller 71 is used to adjust the direction of the positive electrode sheet 2. A negative electrode guide roller 72 is provided to the right of the positive electrode guide roller 71 for adjusting the direction of the negative electrode sheet 3. A lamination roller 73 is arranged between the positive electrode guide roller 71 and the negative electrode guide roller 72 at an upper position, and is used for winding the positive electrode sheet 2 and the negative electrode sheet 3 sprayed with the gel electrolyte together.
Below the lamination roller 73 there is provided a collecting gutter 9 for receiving excess gel electrolyte squeezed out during the winding process.
The utility model discloses when the in-service use, with the confession piece book 10 of positive plate, the confession piece book of negative pole piece place respectively in the positive pole spraying mechanism, the negative pole spraying mechanism of winder. In the positive pole spraying mechanism: one pulled-out end of the positive plate 2 is conveyed through the conveying belt 1, when the positive plate 2 passes through the upper liquid injection nozzle 4, the screw pump 6 is opened, the flow rate is set, and in the running process of the positive plate 2, gel electrolyte is sprayed out through the liquid injection nozzle 41 by the upper liquid injection nozzle 4 and then coated on the upper surface of the positive plate 2; meanwhile, the lower pouring nozzle 8 sprays the gel electrolyte to the lower surface of the negative electrode sheet 3 through the liquid injection nozzle 41. The gel electrolyte sprayed positive electrode sheet 2 enters the lamination mechanism 7 to wait for being wound together with the negative electrode sheet 3 by the lamination roller 73. A collection trough 9 below the lamination roller 73 collects excess gel electrolyte for recovery and also maintains the cleanliness of the environment.
The cathode spraying mechanism has the same structure as the anode spraying mechanism, so the working principle of the cathode spraying mechanism is the same as that of the anode spraying mechanism.
Claims (5)
1. The utility model provides a take winder of online gel mechanism which characterized in that: the device comprises an anode spraying mechanism for spraying gel electrolyte on an anode plate (2), and a cathode spraying mechanism for spraying the gel electrolyte on a cathode plate (3), wherein a laminating mechanism (7) for winding the anode plate (2) and the cathode plate (3) sprayed with the gel electrolyte together is arranged between the anode spraying mechanism and the cathode spraying mechanism; the positive pole spraying mechanism comprises a sheet supply roll (10) for providing a positive pole sheet (2), a conveyor belt (1) which has the same width as the positive pole sheet (2) and is used for conveying the positive pole sheet (2) is arranged above the sheet supply roll (10), and an upper liquid injection nozzle for spraying gel electrolyte on the upper surface of the positive pole sheet (2) is arranged above the right side of the conveyor belt (1); a lower liquid injection nozzle (8) which has the same structure as the upper liquid injection nozzle (4) and is used for spraying gel electrolyte on the lower surface of the positive plate (2) is arranged below the upper liquid injection nozzle (4); the upper liquid injection nozzle (4) and the lower liquid injection nozzle (8) are respectively communicated with a gel electrolyte storage tank (5) through pipelines, and the pipelines are provided with screw pumps (6) for controlling flow.
2. The winding machine with an on-line gel mechanism as claimed in claim 1, wherein: the cathode spraying mechanism and the anode spraying mechanism are identical in structure and are symmetrically arranged.
3. The winding machine with an on-line gel mechanism as claimed in claim 1, wherein: the lamination mechanism (7) comprises a positive electrode guide roller (71) which is arranged on the left side and used for adjusting the direction of the positive electrode sheet (2), and a negative electrode guide roller (72) which is used for adjusting the direction of the negative electrode sheet (3) is arranged on the right side of the positive electrode guide roller (71); and a lamination roller (73) used for winding the positive electrode sheet (2) and the negative electrode sheet (3) together is arranged between the positive electrode guide roller (71) and the negative electrode guide roller (72) at the upper part.
4. The winding machine with an on-line gel mechanism as claimed in claim 3, wherein: a collecting groove (9) for receiving the surplus gel electrolyte is arranged below the lamination roller (73).
5. The winding machine with an on-line gel mechanism as claimed in claim 3, wherein: the upper liquid injection nozzle (4) comprises a liquid storage box with a cavity arranged inside, and the bottom of the liquid storage box is provided with a liquid injection nozzle (41) perpendicular to the running direction of the conveyor belt (1); the length of the liquid injection nozzle (41) is equal to that of the conveyor belt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223107981.9U CN218849576U (en) | 2022-11-23 | 2022-11-23 | Take winder of online gel mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223107981.9U CN218849576U (en) | 2022-11-23 | 2022-11-23 | Take winder of online gel mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218849576U true CN218849576U (en) | 2023-04-11 |
Family
ID=87298045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223107981.9U Active CN218849576U (en) | 2022-11-23 | 2022-11-23 | Take winder of online gel mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218849576U (en) |
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2022
- 2022-11-23 CN CN202223107981.9U patent/CN218849576U/en active Active
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