CN215266423U - High-yield double-sided lithium supplementing system - Google Patents
High-yield double-sided lithium supplementing system Download PDFInfo
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- CN215266423U CN215266423U CN202121073487.8U CN202121073487U CN215266423U CN 215266423 U CN215266423 U CN 215266423U CN 202121073487 U CN202121073487 U CN 202121073487U CN 215266423 U CN215266423 U CN 215266423U
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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
Abstract
The utility model discloses a two-sided lithium system of mending of high yield, prolong tectorial membrane device, A face barrier film unwinding device, A face barrier film coiling mechanism, A face lithium area unwinding device, B face and prolong tectorial membrane device, B face barrier film unwinding device, B face barrier film coiling mechanism, B face lithium area unwinding device, pole piece unwinding device and pole piece coiling mechanism including A face. The utility model discloses production efficiency is high, compact structure, and occupation space is little, and is with low costs, excellent performance, can realize the industrialization and use.
Description
Technical Field
The utility model relates to a lithium cell production and processing equipment technical field, specific theory relates to a two-sided lithium system of mending of high yield.
Background
At present, the lithium ion battery industry at home and abroad has a good development prospect, and the lithium ion battery is generally applied to portable electrical appliances such as a portable computer, a camera and mobile communication due to the unique performance advantages of the lithium ion battery. The high-capacity lithium ion battery developed at present is tried out in electric automobiles, is expected to become one of main power sources of the electric automobiles in the 21 st century, and is applied to artificial satellites, aerospace and energy storage. With the shortage of energy and the pressure in the environmental protection of the world, the lithium battery is widely applied to the electric vehicle industry, especially the appearance of the high energy density material battery, and the development and the application of the lithium battery industry are further promoted.
In the production process of the battery, a lithium supplement process of the lithium ion battery pole piece is a key technology for improving the capacity of the lithium ion battery. The key point of the lithium supplementing process is that the rolling and the film covering are used as independent devices to play a non-replaceable role in the lithium supplementing process of the pole piece, but the rolling and the film covering are combined organically to form a complete device for production in order to form industrialization.
The above drawbacks are to be improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a high-yield double-sided lithium supplementing system.
The utility model discloses technical scheme as follows:
a high-yield double-sided lithium supplement system comprises an A-side calendering laminating device, an A-side isolating film unreeling device, an A-side isolating film reeling device, an A-side lithium belt unreeling device, a B-side calendering laminating device, a B-side isolating film unreeling device, a B-side isolating film reeling device, a B-side lithium belt unreeling device, a pole piece unreeling device and a pole piece reeling device;
the A-surface calendering laminating device comprises an A-surface calendering end and an A-surface laminating end, wherein an A-surface isolating film and an A-surface lithium belt simultaneously pass through the A-surface calendering end, so that the A-surface lithium belt is calendered into an A-surface lithium film, the A-surface isolating film passing through the A-surface calendering end is wound on the A-surface isolating film winding device, and the A-surface lithium film and a pole piece simultaneously pass through the A-surface laminating end, so that the A-surface lithium film is pressed into a coating layer on the A surface of the pole piece to form an A-surface lithium supplement pole piece;
b face calendering tectorial membrane device includes B face calendering end and B face tectorial membrane end, and B face barrier film passes through simultaneously with B face lithium area B face calendering end makes B face lithium area calendering becomes B face lithium membrane, process B face calendering end B face barrier film rolling in B face barrier film coiling mechanism, B face lithium membrane with A face mends lithium pole piece and passes through simultaneously B face tectorial membrane end makes B face lithium membrane presses in the coating layer of A face mends lithium pole piece B face forms two-sided mends lithium pole piece and rolling in pole piece coiling mechanism.
According to the scheme, the A-surface calendering and film-coating device comprises a first calendering movable roller, a first reference movable roller and a first film-coating movable roller which are arranged in parallel in sequence,
the surface A isolating membrane is positioned on one side of the surface A lithium strip, the other side of the surface A lithium strip is coated with silicon oil, the surface A isolating membrane and the surface A lithium strip simultaneously enter between the first calendaring movable roller and the first reference movable roller, when the first calendaring movable roller and the first reference movable roller are arranged, the surface A isolating membrane is in contact with the first calendaring movable roller, the side of the surface A lithium strip coated with the silicon oil is in contact with the first reference movable roller, and the rotating speed of the first calendaring movable roller is less than that of the first reference movable roller; the A face lithium area is in first calendering movable roll with it becomes to mangle between the first benchmark movable roll behind the A face lithium membrane, along first benchmark movable roll with the pole piece gets into simultaneously first benchmark movable roll with between the first tectorial membrane movable roll, the A face lithium membrane with the pole piece passes through first benchmark movable roll with after between the first tectorial membrane movable roll, the A face lithium membrane is pressed in form on the coating layer of pole piece A face the A face mends the lithium pole piece.
Further, the laminating device is prolonged to A face pressure still includes first fixed roll and the first device that pressurizes, first fixed roll sets up first calendering movable roll is kept away from one side of first benchmark movable roll, just first fixed roll with first calendering movable roll is parallel, first device that pressurizes drives first laminating movable roll past first fixed roll direction is exerted pressure.
Further, a first scraper device for removing the residual A-side lithium film attached to the first reference movable roller is arranged on the first reference movable roller.
Further, be provided with between first calendering movable roll with the first benchmark movable roll and be used for adjusting first calendering movable roll with the first clearance adjusting device in clearance between the first benchmark movable roll, first benchmark movable roll with be provided with between the first tectorial membrane movable roll and be used for adjusting the first benchmark movable roll with the second clearance adjusting device in clearance between the first tectorial membrane movable roll.
According to the scheme, the B-surface calendering and laminating device comprises a second calendering movable roller, a second reference movable roller and a second laminating movable roller which are arranged in parallel in sequence,
the surface B isolating film is positioned on one side of the surface B lithium belt, the other side of the surface B lithium belt is coated with silicon oil, the surface B isolating film and the surface B lithium belt simultaneously enter between the second calendaring movable roller and the second reference movable roller, when the surface B lithium belt is positioned between the second calendaring movable roller and the second reference movable roller, the surface B isolating film is contacted with the second calendaring movable roller, the side of the surface B lithium belt coated with the silicon oil is contacted with the second reference movable roller, and the rotating speed of the second calendaring movable roller is less than that of the second reference movable roller; the B face lithium area is in the second calendering movable roll with it becomes to mangle between the second benchmark movable roll behind the B face lithium membrane, along the second benchmark movable roll with the A face mends lithium pole piece and gets into simultaneously the second benchmark movable roll with between the second tectorial membrane movable roll, the B face lithium membrane with the A face mends lithium pole piece and passes through the second benchmark movable roll with back between the second tectorial membrane movable roll, the B face lithium membrane is pressed in form on the coating layer of A face mends lithium pole piece B face two-sided mends lithium pole piece.
Further, B face calendering tectorial membrane device still includes second fixed roll and second biasing means, the second fixed roll sets up second calendering movable roll is kept away from one side of second benchmark movable roll, just the second fixed roll with the second calendering movable roll is parallel, second biasing means drives the second tectorial membrane movable roll is past the second fixed roll direction is exerted pressure.
Further, a second scraper device for removing the residual B-surface lithium film attached to the second reference movable roller is arranged on the second reference movable roller.
Further, a third gap adjusting device used for adjusting a gap between the second rolling movable roller and the second benchmark movable roller is arranged between the second rolling movable roller and the second benchmark movable roller, and a fourth gap adjusting device used for adjusting a gap between the second benchmark movable roller and the second film covering movable roller is arranged between the second benchmark movable roller and the second film covering movable roller.
According to the above scheme the utility model discloses, still include CCD detection device and paste the mark device, CCD detection device with paste the mark device setting and be in two-sided lithium pole piece quilt of mending on the rolling route of pole piece coiling mechanism rolling.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model organically combines the original independent rolling device and the film covering device together to form a set of finished high-yield double-sided lithium supplementing system integrating rolling and film covering, which can not only double-sided lithium supplementing and improve the production efficiency, but also only needs one set of isolating film receiving and sending device for one set of rolling and film covering device, thereby leading the utility model to have high production efficiency, compact structure, small occupied space, low cost and excellent performance and realize industrialized application;
2. the utility model organically combines the originally independent A-surface calendering device and A-surface film covering device together through the first calendering movable roller, the first reference movable roller and the first film covering movable roller, and the lithium belt is finished by one roller;
3. the utility model discloses a second calendering movable roll, second benchmark movable roll and second tectorial membrane movable roll will originally independent B face calendering device and B face tectorial membrane device combine together organically, and a lithium area covers a pole piece roller and accomplishes.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a tape running of a surface-A calendering coating apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a tape running of a B-side calendering coating device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another embodiment of the present invention.
In the context of the figures, it is,
1. a surface calendering laminating device; 101. a first calendering movable roll; 102. a first reference movable roller; 103. a first film-coating movable roller; 104. a first fixed roller; 105. a first scraper device;
2. the A surface isolation film unwinding device;
3. the A surface isolation film winding device;
4. the surface A lithium belt unwinding device;
5. b surface calendering laminating device; 501. a second calendering movable roll; 502. a second reference movable roller; 503. a second film-coating movable roller; 504. a second fixed roller; 505. a second scraper device;
6. the unwinding device for the B-side isolation film;
7. a B-side isolating film winding device;
8. a B-side lithium belt unwinding device;
9. a pole piece unwinding device;
10. a pole piece winding device;
11. a CCD detection device;
12. a labeling device;
13. a fixed pulley;
100. a surface A lithium tape;
200. pole pieces;
300. a surface A isolating film;
400. a B-side lithium tape;
500. a B-side isolating film;
600. supplementing a lithium pole piece on the surface A;
700. and (4) double-sided lithium supplement pole pieces.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "side", "parallel", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are only for convenience of description and should not be construed as limiting the technical solution. The terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1, an embodiment of the present invention provides a high-throughput double-sided lithium replenishment system, the device comprises a surface A calendering laminating device 1 for calendering a surface A lithium belt 100 into a surface A lithium film and attaching the surface A lithium film to a pole piece 200, a surface A isolating film unreeling device 2 for supplying a surface A isolating film 300, a surface A isolating film reeling device 3 for recovering the surface A isolating film 300, a surface A lithium belt unreeling device 4 for supplying the surface A lithium belt 100, a surface B calendering laminating device 5 for calendering a surface B lithium belt 400 into a surface B lithium film and attaching the surface B lithium film to the pole piece 200, a surface B isolating film unreeling device 6 for supplying a surface B isolating film 500, a surface B isolating film reeling device 7 for recovering the surface B isolating film 500, a surface B lithium belt unreeling device 8 for supplying the surface B lithium belt 400, a pole piece unreeling device 9 for supplying the pole piece 200 and a pole piece reeling device 10 for recovering the pole piece 200 after lithium supplement.
The A-surface calendering laminating device 1 comprises an A-surface calendering end and an A-surface laminating end, the A-surface isolating film 300 and the A-surface lithium belt 100 simultaneously pass through the A-surface calendering end, so that the A-surface lithium belt is calendered into an A-surface lithium film, the A-surface isolating film 300 passing through the A-surface calendering end is wound in the A-surface isolating film winding device 3, and the A-surface lithium film and the pole piece 200 simultaneously pass through the A-surface laminating end, so that the A-surface lithium film is pressed into the coating layer on the A surface of the pole piece 200 to form an A-surface lithium supplement pole piece 600; the B-surface calendering laminating device 5 comprises a B-surface calendering end and a B-surface laminating end, the B-surface isolating film 500 and the B-surface lithium belt 400 simultaneously pass through the B-surface calendering end, so that the B-surface lithium belt 400 is calendered into a B-surface lithium film, the B-surface isolating film 500 passing through the B-surface calendering end is rolled in the B-surface isolating film rolling device 7, the B-surface lithium film and the A-surface lithium supplementing pole piece 600 simultaneously pass through the B-surface laminating end, so that the B-surface lithium film is pressed into a coating layer on the B-surface lithium supplementing pole piece 600 to form a double-surface lithium supplementing pole piece 700, and the double-surface lithium supplementing pole piece 700 is rolled in the pole piece rolling device 10.
Specifically, the a-surface isolating film 300 and the a-surface lithium strip 100 enter the rolling end of the a-surface rolling film covering device 1 simultaneously, the a-surface isolating film 300 is stripped after coming out of the rolling end of the a-surface rolling film covering device 1 and wound by the a-surface isolating film winding device 3, the a-surface lithium strip 100 is rolled into an a-surface lithium film after passing through the rolling end of the a-surface rolling film covering device 1 and enters the film covering end of the a-surface rolling film covering device 1 simultaneously with the pole piece 200, and after the a-surface lithium film and the pole piece 200 pass through the film covering end of the a-surface rolling film covering device 1, the a-surface lithium film is pressed into the coating layer of the a-surface of the pole piece 200 to form an a-surface lithium supplement pole piece 600; the B-surface isolating film 500 and the B-surface lithium strip 400 enter the rolling end of the B-surface rolling and laminating device 5 simultaneously, the B-surface isolating film 500 is stripped after coming out of the rolling end of the B-surface rolling and laminating device 5 and is rolled by the B-surface isolating film rolling device 7, the B-surface lithium strip 400 is rolled into a B-surface lithium film after passing through the rolling end of the B-surface rolling and laminating device 5 and enters the laminating end of the B-surface rolling and laminating device 5 together with the A-surface lithium supplement pole piece 600, the B-surface lithium film and the A-surface lithium supplement pole piece 600 enter the laminating end of the B-surface rolling and laminating device 5, and the B-surface lithium film is pressed into the coating layer on the B surface of the A-surface lithium supplement pole piece 600 to form a double-surface lithium supplement pole piece 700 and is rolled by the pole piece rolling device 10.
The utility model discloses a to combine originally independent calendering device and tectorial membrane device to be in the same place, form the two-sided lithium system of mending of high yield ability of the collection calendering and tectorial membrane of one set of completion, not only can two-sided improvement production efficiency who mends lithium at double, and one set of calendering tectorial membrane device only needs one set of barrier film send-receiver device, thereby makes the utility model discloses production efficiency is high, compact structure, and occupation space is little, and is with low costs, and excellent performance can realize the industrialization and use.
Referring to fig. 2, in a preferred embodiment, the a-side rolling film coating device 1 includes a first rolling movable roller 101, a first reference movable roller 102 and a first film coating movable roller 103, which are sequentially arranged in parallel. The A-surface isolating film 300 is located on one side of the A-surface lithium strip 100, the other side of the A-surface lithium strip 100 is coated with silicone oil, the A-surface isolating film 300 is used for protecting the A-surface lithium strip 100 from contacting with the first calendaring movable roller 101 in the calendaring process, and the silicone oil is used for preventing the A-surface lithium strip 100 from being stuck to the first reference movable roller 102 in the calendaring and laminating processes. The surface A isolating film 300 and the surface A lithium strip 100 simultaneously enter between a first calendering movable roller 101 and a first reference movable roller 102, when the first calendering movable roller 101 is in contact with the first reference movable roller 102, the surface A isolating film 300 is in contact with the first calendering movable roller 101, one side of the surface A lithium strip 100 coated with silicon oil is in contact with the first reference movable roller 102, and the rotating speed of the first calendering movable roller 101 is smaller than that of the first reference movable roller 102; after the a-side lithium tape 100 is rolled into an a-side lithium film between the first rolling movable roller 101 and the first reference movable roller 102, because the rotation speed of the first rolling movable roller 101 is lower than the rotation speed of the first reference movable roller 102 to generate a centrifugal force, the a-side lithium film enters between the first reference movable roller 102 and the first film-covering movable roller 103 along the first reference movable roller 102 and the pole piece 200 simultaneously under the action of the centrifugal force, the rotation speeds of the first reference movable roller 102 and the first film-covering movable roller 103 are consistent, and after the a-side lithium film and the pole piece 200 pass between the first reference movable roller 102 and the first film-covering movable roller 103, the a-side lithium film is pressed into the coating layer on the a-side of the pole piece 200 to form an a-side lithium-supplement pole piece 600. The utility model discloses a first calendering movable roll 101, first benchmark movable roll 102 and first tectorial membrane movable roll 103 will originally independent A face calendering device and A face tectorial membrane device combine together organically, and the lithium area covers a pole piece roller and accomplishes, compact structure, and occupation space is little, and excellent performance can realize the industrialization and use.
Referring to fig. 2, further, the a-side rolling laminating apparatus 1 further includes a first fixed roller 104 and a first pressing device (not shown, the same applies below), the first fixed roller 104 is disposed on a side of the first rolling movable roller 101 away from the first reference movable roller 102, the first fixed roller 104 is parallel to the first rolling movable roller 101, the first pressing device drives the first laminating movable roller 103 to press towards the first fixed roller 104, so that the first laminating movable roller 103 presses towards the first reference movable roller 102, the first reference movable roller 102 presses towards the first rolling movable roller 101, and the first fixed roller 104 is disposed to ensure that the first rolling movable roller 101 is not easily deformed when the first pressing device presses, thereby playing a role in reinforcement.
Referring to fig. 4, further, during the film coating process, the a-side lithium film may not be coated on the pole piece 200 for various reasons (such as uniform coating of silicone oil, etc.), and thus remains on the surface of the first reference movable roll 102, which affects the subsequent film coating or rolling operation, and therefore, in the present embodiment, the first reference movable roll 102 is provided with the first scraper device 105 for removing the a-side lithium film remaining on the first reference movable roll 102, and the first scraper device 105 is a conventional technology, and therefore, the description thereof is omitted.
Further, a first gap adjusting device (not shown, the same applies below) for adjusting the gap between the first rolling movable roll 101 and the first reference movable roll 102 is disposed between the first rolling movable roll 101 and the first reference movable roll 102, and since the a-side lithium ribbon 100 needs to be pressed into a thinner a-side lithium film with a certain pressure during the rolling process. The thinning of the surface a lithium tape 100 is in a certain proportion, too much damages the structure of the surface a lithium tape 100, too little damages the surface a lithium tape 100, and the surface a lithium tape 100 cannot be fully embedded into the coating area of the surface a of the pole piece 200, so the size of the working gap is particularly important under the condition of unchanged calendering force, and qualified products cannot be produced if the working gap is not adjusted.
A second gap adjusting device (not shown, the same applies below) for adjusting the gap between the first reference movable roller 102 and the first film application movable roller 103 is provided between the first reference movable roller 102 and the first film application movable roller 103. Because the film coating process is an embedded process, namely, a lithium film on the A surface is embedded into the coating area on the A surface of the pole piece 200 with a certain pressure, the pole piece 200 after film coating is thinner than the pole piece 200 before film coating. The thinning of the pole piece 200 is in a certain proportion, too much damages the structure of the coating area of the pole piece 200, too little A-surface lithium film cannot be fully embedded into the coating area of the A surface of the pole piece 200, so the size of the working gap is particularly important under the condition of unchanged laminating force, and qualified products cannot be produced if the working gap is not adjusted. Since the first gap adjusting device and the second gap adjusting device are conventional techniques, their description will be omitted.
Referring to fig. 3, in a preferred embodiment, the B-side rolling film coating device 5 includes a second rolling movable roller 501, a second reference movable roller 502 and a second film coating movable roller 503, which are sequentially arranged in parallel. The B-side isolating film 500 is located on one side of the B-side lithium strip 400, the other side of the B-side lithium strip 400 is coated with silicone oil, the B-side isolating film 500 aims to protect the B-side lithium strip 400 from contacting with the second calendering movable roller 501 in the calendering process, and the silicone oil is coated to prevent the B-side lithium strip 400 from being stuck to the second reference movable roller 502 in the calendering and film coating processes. The surface B isolating film 500 and the surface B lithium strip 400 simultaneously enter between a second calendering movable roller 501 and a second reference movable roller 502, when the second calendering movable roller 501 is located between the second reference movable roller 502, the surface B isolating film 500 is in contact with the second calendering movable roller 501, one side of the surface B lithium strip 400 coated with silicon oil is in contact with the second reference movable roller 502, and the rotating speed of the second calendering movable roller 501 is smaller than that of the second reference movable roller 502; after the B-side lithium ribbon 400 is rolled into a B-side lithium film between the second rolling movable roller 501 and the second reference movable roller 502, a centrifugal force is generated because the rotation speed of the second rolling movable roller 501 is smaller than the rotation speed of the second reference movable roller 502, the B-side lithium film enters between the second reference movable roller 502 and the second film covering movable roller 503 along the second reference movable roller 502 and the a-side lithium supplement electrode sheet 600 simultaneously under the action of the centrifugal force, the rotation speeds of the second reference movable roller 502 and the second film covering movable roller 503 are consistent, and after the B-side lithium film and the a-side lithium supplement electrode sheet 600 pass between the second reference movable roller 502 and the second film covering movable roller 503, the B-side lithium film is pressed into the coating layer on the B-side of the a-side lithium supplement electrode sheet 600 to form the double-side lithium supplement electrode sheet 700. The utility model discloses a second calendering movable roll 501, second benchmark movable roll 502 and second tectorial membrane movable roll 503 will originally independent B face calendering device and B face tectorial membrane device combine together organically, and the lithium area covers a pole piece roller and accomplishes, compact structure, and occupation space is little, and excellent performance can realize the industrialization and use.
Referring to fig. 3, further, the B-side rolling film covering device 5 further includes a second fixed roller 504 and a second pressing device (not shown, the same applies below), the second fixed roller 504 is disposed on a side of the second rolling movable roller 501 away from the second reference movable roller 502, the second fixed roller 504 is parallel to the second rolling movable roller 501, the second pressing device drives the second film covering movable roller 503 to press towards the second fixed roller 504, so that the second film covering movable roller 503 presses towards the second reference movable roller 502, the second quasi-movable roller presses towards the second rolling movable roller 501, and the second fixed roller 504 is disposed to ensure that the second rolling movable roller 501 is not easily deformed when the second pressing device presses, thereby playing a role in reinforcement.
Referring to fig. 4, further, during the film coating process, the B-side lithium film may not be coated on the pole piece 200 for various reasons (such as uniform coating of silicone oil, etc.), and thus remains on the surface of the second reference movable roller 502, which affects the subsequent film coating or rolling operation, so in this embodiment, the second reference movable roller 502 is provided with a second scraper device 505 for removing the B-side lithium film remaining on the second reference movable roller 502, and the second scraper device 505 is a conventional technology, and therefore, the description thereof is omitted.
Further, a third gap adjusting device (not shown, the same applies below) for adjusting the gap between the second rolling movable roller 501 and the second reference movable roller 502 is provided between the second rolling movable roller 501 and the second reference movable roller 502. The B-side lithium ribbon 400 needs to be pressed into a thinner B-side lithium film with a certain pressure during the rolling process. The thinning of the B-side lithium tape 400 is in a certain proportion, too much damages the structure of the B-side lithium tape 400, too little damages the B-side lithium tape 400, and the B-side lithium tape 400 cannot be fully embedded into the coating area of the B-side of the pole piece 200, so the size of the working gap is particularly important under the condition of unchanged calendering force, and qualified products cannot be produced if the working gap is not adjusted.
A fourth gap adjusting device (not shown, the same applies hereinafter) for adjusting the gap between the second reference movable roller 502 and the second film covering movable roller 503 is provided between the second reference movable roller 502 and the second film covering movable roller 503. Because the film coating process is an embedded process, i.e. a lithium film on the surface B is embedded into the coating area on the surface B of the pole piece 200 with a certain pressure, the pole piece 200 after film coating is thinner than the pole piece 200 before film coating. The thinning of the pole piece 200 is in a certain proportion, too much damages the structure of the coating area of the pole piece 200, too little the B-surface lithium film cannot be fully embedded into the coating area of the B surface of the pole piece 200, so the size of the working gap is particularly important under the condition of unchanged film coating force, and qualified products cannot be produced if the working gap is not adjusted. Since the third gap adjusting device and the fourth gap adjusting device are conventional techniques, their description will be omitted.
Referring to fig. 4, in a preferred embodiment, the high-throughput double-sided lithium replenishing system further includes a CCD detecting device 11 and a labeling device 12, and the CCD detecting device 11 and the labeling device 12 are disposed on a winding path of the double-sided lithium replenishing pole piece 700 wound by the pole piece winding device 10. The quality of the double-sided lithium supplement pole piece 700 is detected through the CCD detection device 11, if an unqualified product appears, the CCD detection device 11 sends a signal, the system instructs the labeling device 12 to act, the labeling device 12 identifies the unqualified product sections on the double-sided lithium supplement pole piece 700, and the subsequent processes are convenient to cut off the unqualified product sections of the double-sided lithium supplement pole piece 700.
Referring to fig. 1, in a preferred embodiment, since there are many components of the high-throughput double-sided lithium supplement system and there are many junctions, the layout of each component can be made more compact by adjusting the directions of the pole piece 200, the a-side lithium strip 100, the B-side lithium strip 400, the a-side isolation film 300, and the B-side isolation film 500, and the overall volume of the high-throughput double-sided lithium supplement system is reduced as much as possible.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
The above exemplary description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above manner, and various improvements made by the method concept and technical solution of the present invention or by directly applying the concept and technical solution of the present invention to other occasions without improvement are all within the protection scope of the present invention.
Claims (10)
1. A high-yield double-sided lithium supplement system is characterized by comprising an A-side calendering laminating device, an A-side isolating film unreeling device, an A-side isolating film reeling device, an A-side lithium belt unreeling device, a B-side calendering laminating device, a B-side isolating film unreeling device, a B-side isolating film reeling device, a B-side lithium belt unreeling device, a pole piece unreeling device and a pole piece reeling device;
the A-surface calendering laminating device comprises an A-surface calendering end and an A-surface laminating end, wherein an A-surface isolating film and an A-surface lithium belt simultaneously pass through the A-surface calendering end, so that the A-surface lithium belt is calendered into an A-surface lithium film, the A-surface isolating film passing through the A-surface calendering end is wound on the A-surface isolating film winding device, and the A-surface lithium film and a pole piece simultaneously pass through the A-surface laminating end, so that the A-surface lithium film is pressed into a coating layer on the A surface of the pole piece to form an A-surface lithium supplement pole piece;
b face calendering tectorial membrane device includes B face calendering end and B face tectorial membrane end, and B face barrier film passes through simultaneously with B face lithium area B face calendering end makes B face lithium area calendering becomes B face lithium membrane, process B face calendering end B face barrier film rolling in B face barrier film coiling mechanism, B face lithium membrane with A face mends lithium pole piece and passes through simultaneously B face tectorial membrane end makes B face lithium membrane presses in the coating layer of A face mends lithium pole piece B face forms two-sided mends lithium pole piece and rolling in pole piece coiling mechanism.
2. The high-yield double-sided lithium supplementing system according to claim 1, wherein the A-side rolling film covering device comprises a first rolling movable roller, a first reference movable roller and a first film covering movable roller which are arranged in parallel in sequence,
the surface A isolating membrane is positioned on one side of the surface A lithium strip, the other side of the surface A lithium strip is coated with silicon oil, the surface A isolating membrane and the surface A lithium strip simultaneously enter between the first calendaring movable roller and the first reference movable roller, when the first calendaring movable roller and the first reference movable roller are arranged, the surface A isolating membrane is in contact with the first calendaring movable roller, the side of the surface A lithium strip coated with the silicon oil is in contact with the first reference movable roller, and the rotating speed of the first calendaring movable roller is less than that of the first reference movable roller; the A face lithium area is in first calendering movable roll with it becomes to mangle between the first benchmark movable roll behind the A face lithium membrane, along first benchmark movable roll with the pole piece gets into simultaneously first benchmark movable roll with between the first tectorial membrane movable roll, the A face lithium membrane with the pole piece passes through first benchmark movable roll with after between the first tectorial membrane movable roll, the A face lithium membrane is pressed in form on the coating layer of pole piece A face the A face mends the lithium pole piece.
3. The high-yield double-sided lithium supplementing system according to claim 2, wherein the a-side rolling film coating device further comprises a first fixed roller and a first pressure applying device, the first fixed roller is arranged on one side of the first rolling movable roller, which is far away from the first reference movable roller, the first fixed roller is parallel to the first rolling movable roller, and the first pressure applying device drives the first film coating movable roller to apply pressure to the first fixed roller.
4. The high-yield double-sided lithium replenishment system according to claim 2, wherein a first scraper device for removing the residual A-side lithium film attached to the first reference movable roller is arranged on the first reference movable roller.
5. The high-yield double-sided lithium supplementation system according to claim 2, wherein a first gap adjusting device for adjusting a gap between the first calendaring movable roller and the first reference movable roller is arranged between the first calendaring movable roller and the first reference movable roller, and a second gap adjusting device for adjusting a gap between the first reference movable roller and the first film covering movable roller is arranged between the first reference movable roller and the first film covering movable roller.
6. The high-yield double-sided lithium supplementing system according to claim 1, wherein the B-side rolling film covering device comprises a second rolling movable roller, a second reference movable roller and a second film covering movable roller which are arranged in parallel in sequence,
the surface B isolating film is positioned on one side of the surface B lithium belt, the other side of the surface B lithium belt is coated with silicon oil, the surface B isolating film and the surface B lithium belt simultaneously enter between the second calendaring movable roller and the second reference movable roller, when the surface B lithium belt is positioned between the second calendaring movable roller and the second reference movable roller, the surface B isolating film is contacted with the second calendaring movable roller, the side of the surface B lithium belt coated with the silicon oil is contacted with the second reference movable roller, and the rotating speed of the second calendaring movable roller is less than that of the second reference movable roller; the B face lithium area is in the second calendering movable roll with it becomes to mangle between the second benchmark movable roll behind the B face lithium membrane, along the second benchmark movable roll with the A face mends lithium pole piece and gets into simultaneously the second benchmark movable roll with between the second tectorial membrane movable roll, the B face lithium membrane with the A face mends lithium pole piece and passes through the second benchmark movable roll with back between the second tectorial membrane movable roll, the B face lithium membrane is pressed in form on the coating layer of A face mends lithium pole piece B face two-sided mends lithium pole piece.
7. The high-yield double-sided lithium supplementing system according to claim 6, wherein the B-side rolling film coating device further comprises a second fixed roller and a second pressing device, the second fixed roller is arranged on one side of the second rolling movable roller, which is far away from the second reference movable roller, and the second fixed roller is parallel to the second rolling movable roller, and the second pressing device drives the second film coating movable roller to press towards the second fixed roller.
8. The high-yield double-sided lithium supplementing system according to claim 6, wherein a second scraper device for removing the B-side lithium film attached to the second reference movable roller is arranged on the second reference movable roller.
9. The high-yield double-sided lithium supplementing system according to claim 6, wherein a third gap adjusting device for adjusting a gap between the second rolling movable roll and the second reference movable roll is arranged between the second rolling movable roll and the second reference movable roll, and a fourth gap adjusting device for adjusting a gap between the second reference movable roll and the second film covering movable roll is arranged between the second reference movable roll and the second film covering movable roll.
10. The high-yield double-sided lithium supplementation system according to claim 1, further comprising a CCD detection device and a labeling device, wherein the CCD detection device and the labeling device are arranged on a winding path of the double-sided lithium supplementation pole piece wound by the pole piece winding device.
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| CN202121073487.8U CN215266423U (en) | 2021-05-19 | 2021-05-19 | High-yield double-sided lithium supplementing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116169369A (en) * | 2023-03-02 | 2023-05-26 | 广东捷盟智能装备有限公司 | Lithium supplementing device compatible with pole pieces of various specifications |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116169369A (en) * | 2023-03-02 | 2023-05-26 | 广东捷盟智能装备有限公司 | Lithium supplementing device compatible with pole pieces of various specifications |
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