CN212113909U - Lamination device for improving lithium ion battery diaphragm fold - Google Patents
Lamination device for improving lithium ion battery diaphragm fold Download PDFInfo
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- CN212113909U CN212113909U CN202020657227.4U CN202020657227U CN212113909U CN 212113909 U CN212113909 U CN 212113909U CN 202020657227 U CN202020657227 U CN 202020657227U CN 212113909 U CN212113909 U CN 212113909U
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- diaphragm
- lamination
- feeding device
- plate feeding
- lithium ion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a lamination device for improving lithium ion battery diaphragm folds, which comprises a machine body, wherein a positive plate feeding device, a negative plate feeding device, a diaphragm unreeling mechanism, a roller set and a movable lamination platform are arranged on the machine body; two diaphragm smoothing rollers are movably arranged on the machine body between the positive plate feeding device and the negative plate feeding device, are positioned above the movable lamination table and do up-and-down reciprocating motion relative to the movable lamination table, and are used for smoothing wrinkles generated by the diaphragms in the lamination process. The utility model provides an improve lamination device of lithium ion battery diaphragm fold can improve the diaphragm fold problem of lithium ion battery lamination in-process, promotes electric core quality.
Description
Technical Field
The utility model relates to a lithium cell manufacture equipment technical field especially relates to an improve lamination device of lithium ion battery diaphragm fold.
Background
The lithium ion soft package battery has the characteristics of good safety performance, light weight, high capacity, high energy density, flexible design and the like. The lithium ion soft package power battery is rapidly popularized in use on new energy automobiles by virtue of the advantages of high energy density and high safety, and the market share of the soft package power battery is continuously increased.
The lithium ion power battery has large capacity, and is mostly produced in a lamination mode in the production process, namely, positive and negative pole pieces are moved to a lamination table after being positioned and corrected, and then are placed on a pressed diaphragm, and then are moved to the other end through the lamination table, and the diaphragm is naturally drawn and covered on the pole pieces to enable the diaphragm to move in a Z shape, and the positive and negative pole pieces are respectively placed in the lamination table and move repeatedly, so that the diaphragm is cut off to obtain a required product after a core cladding reaches the required number of layers. When the traditional lamination production process is used, the lamination machine mainly depends on the self weight of the floating roller to control the tension of the diaphragm, the tension of the diaphragm cannot be continuously constant by the control method, and once the control speed of the tension of the diaphragm cannot keep up with the speed of the lamination, the unevenness of the diaphragm which is laminated into the core bag can be caused, the diaphragm folding condition is generated, and the quality of the battery core is influenced.
At present, a long (greater than 400mm) battery core is produced by a company, and because the lithium ion battery of the type is long in length and wide in diaphragm, when the lamination process is produced, the existing equipment cannot effectively control the tension and the flatness of the diaphragm in the lamination process, the diaphragm is very easy to wrinkle in the lamination process, and the diaphragm wrinkle cannot be eliminated in later-stage production, so that the quality of the battery core is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of prior art, the utility model provides an improve lamination device of lithium ion battery diaphragm fold improves the fold that produces when lamination process production, improves electric core quality. In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a lamination device for improving lithium ion battery diaphragm wrinkles comprises a machine body, wherein a positive plate feeding device, a negative plate feeding device, a diaphragm unwinding mechanism and a roller set are arranged on the machine body; the diaphragm unwinding mechanism and the roller set are arranged at the upper end of the machine body, a wound diaphragm is placed on the diaphragm unwinding mechanism, the wound diaphragm is unwound by the diaphragm unwinding mechanism, and then tension is released by the roller set; the machine body is provided with a movable lamination table at the bottom, the positive plate feeding device and the negative plate feeding device are both arranged above the movable lamination table, the positive plate feeding device and the negative plate feeding device do up-down and front-back reciprocating motion, and the movable lamination table can move to the positions right below the positive plate feeding device and the negative plate feeding device through left-right reciprocating motion; two diaphragm smoothing rollers are movably arranged on the machine body between the positive plate feeding device and the negative plate feeding device, are arranged in parallel left and right, are both positioned above the movable lamination table and do reciprocating motion up and down relative to the movable lamination table; and a U-shaped clamp used for clamping the diaphragm is movably arranged on the movable lamination table.
Further, remove lamination platform including lamination platform body, control servo, slide rail and support column, control servo setting in the organism bottom, control servo output shaft and have the slide rail that the level set up, lamination platform body is fixed in the support column upper end, support column lower extreme swing joint is on the slide rail, and control servo control support column and do left and right reciprocating motion on the slide rail to control lamination platform body and remove under positive plate feedway and negative pole piece feedway.
Furthermore, the U-shaped clamps are movably arranged on the lamination table body, and the front end and the rear end of the lamination table body are respectively provided with two U-shaped clamps.
Furthermore, two diaphragm smoothing rollers are movably arranged on the machine body through a support respectively.
Further, the front-back width of the membrane smoothing roller is equal to or wider than the front-back width of the membrane.
Further, evenly be provided with a plurality of micelle on the diaphragm smooths the gyro wheel.
Furthermore, still be provided with diaphragm cutting device on the lamination platform body, after the lamination is accomplished, cut off the last layer diaphragm.
Furthermore, the diaphragm cutting device cuts off the diaphragm in a thermal cutting mode, the diaphragm cutting device comprises an upper servo, a lower servo, a resistance wire and a temperature control system, the upper servo controls the resistance wire to reciprocate up and down relative to the lamination table body, and the temperature control system is connected with the resistance wire and controls the temperature rise of the resistance wire.
Compared with the prior art, the utility model provides an improve lamination device of lithium ion battery diaphragm fold has following advantage: when the battery core with the large battery core length and the wide diaphragm is produced, the tension of supplied materials of the diaphragm is uneven, the diaphragm is prone to wrinkling, the diaphragm is smoothed by the diaphragm smoothing roller, and the wrinkling problem can be well improved.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.
Fig. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a top view of the lamination station body;
the upper, lower, left, right, front and back mentioned in the text are subject to the upper, lower, left, right, front and back pointed out in the drawings;
description of reference numerals: 1-body; 2, a diaphragm unwinding mechanism; 3-a separator; 4-a roller set; 5-a bracket; 6-membrane smoothing roller; 7-a support column; 8-a slide rail; 9-left and right servo; 10-U clamp; 11-a lamination table body; 12-positive plate feeding device; 13-positive plate; 14-negative plate feeding device; 15-negative pole piece.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g. as being either fixedly connected or detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A lamination device for improving lithium ion battery diaphragm wrinkles is shown in figures 1-2 and comprises a machine body 1, wherein a positive plate feeding device 12, a negative plate feeding device 14, a diaphragm unwinding mechanism 2 and a roller set 4 are arranged on the machine body 1; the diaphragm unwinding mechanism 2 and the roller set 4 are arranged at the upper end of the machine body 1, a wound diaphragm 3 is placed on the diaphragm unwinding mechanism 2, the wound diaphragm 3 is unwound by the diaphragm unwinding mechanism 2, and then tension is released by the roller set 4; a movable lamination table is arranged at the bottom of the machine body 1, the positive plate feeding device 12 and the negative plate feeding device 14 are both arranged above the movable lamination table, and the positive plate feeding device 12 and the negative plate feeding device 14 do reciprocating motion up and down and back and forth; the movable lamination table comprises a lamination table body 11, a left servo 9, a right servo 9, a slide rail 8 and a support column 7, wherein the left servo 9 and the right servo 9 are arranged at the bottom of the machine body 1, the output shaft of the left servo 9 and the right servo 9 are connected with the slide rail 8 which is horizontally arranged, the lamination table body 11 is fixed at the upper end of the support column 7, the lower end of the support column 7 is movably connected onto the slide rail 8, the slide rail 8 is a lead screw, the left servo 9 and the right servo 9 control the support column 7 to do left and right reciprocating motion on the slide rail 8 through forward rotation and reverse rotation, and therefore the lamination table body 11 is controlled to move to the position; the front end and the rear end of the lamination table body 11 are respectively provided with two U-shaped clamps 10, and when the diaphragm 3, the positive plate 13 or the negative plate 15 is laid on the lamination table body 11, the U-shaped clamps 10 press the diaphragm 3, the positive plate 13 or the negative plate 15 in the moving sequence of 'out → up → in → down'; the lamination table is characterized in that a diaphragm cutting device is further arranged on the lamination table body 11 and is used for cutting off the diaphragm 3 in a thermal cutting mode, the diaphragm cutting device comprises an upper servo, a lower servo, a resistance wire and a temperature control system, the upper servo and the lower servo control resistance wire reciprocate up and down relative to the lamination table body 11, the temperature control system is connected with the resistance wire and is used for controlling the temperature rise of the resistance wire, and after lamination is completed, the diaphragm cutting device is used for cutting off the last layer of diaphragm 3.
Two diaphragm smoothing rollers 6 are movably arranged on the machine body 1 between the positive plate feeding device 12 and the negative plate feeding device 14, the two diaphragm smoothing rollers 6 are arranged in parallel left and right, and the two diaphragm smoothing rollers 6 are respectively and movably arranged on the machine body 1 through a bracket 5; the two diaphragm smoothing rollers 6 are positioned above the movable lamination table and reciprocate up and down relative to the movable lamination table to smooth out wrinkles generated by the diaphragm 3 in the lamination process; the width of the diaphragm smoothing roller 6 in the front-back direction is equal to or wider than the width of the diaphragm 3 in the front-back direction; evenly be provided with a plurality of micells on the diaphragm smooths gyro wheel 6, can further promote the diaphragm and smooths the effect of smoothing of gyro wheel 6 to diaphragm 3.
When the diaphragm flattening device is used, a diaphragm 3 penetrates through the space between the two diaphragm flattening rollers 6 and then is laid on the lamination table body 11, the U-shaped clamp 10 clamps the first layer of diaphragm 3, when the lamination table body 11 moves rightwards, the diaphragm flattening roller 6 on the right side descends to press the diaphragm 3, the diaphragm 3 moves to drive the diaphragm flattening rollers 6 to rotate, and therefore the wrinkles of the diaphragm 3 are flattened; the negative plate feeding device 14 on the right places a negative plate 15 on the diaphragm 3 of the lamination table body 11 forwards and downwards, the U-shaped clamp 10 presses the negative plate 15 and the diaphragm 3 in the sequence of 'out → up → in → down', and after the negative plate 15 is placed down, the negative plate feeding device 14 returns to the plate taking position upwards and backwards; when the lamination table body 11 moves leftwards, the right diaphragm smoothing roller 6 resets, and the left diaphragm smoothing roller 6 falls down to smooth the next layer of diaphragm 3; then, the positive electrode tab feeding device 12 puts a positive electrode tab 13 forward and downward on the lamination table body 11, and then the clevis 10 presses the negative electrode tab 15, the separator 3, and the positive electrode tab 13, which have been stacked on the lamination table body 11, in the order of "out → up → in → down". And repeating the process, and when the number of the lamination layers reaches the set requirement, the diaphragm cutting device heats the resistance wire to cut the last diaphragm layer 3.
The utility model discloses be provided with the diaphragm and smooth gyro wheel 6, can smooth the 3 folds of diaphragm that the lamination in-process produced because 3 uneven tensions of diaphragm, improve the 3 folds problems of diaphragm in the lamination in-process greatly, realize that core package diaphragm 3 levels behind the lamination, improve electric core quality.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (8)
1. A lamination device for improving lithium ion battery diaphragm wrinkles comprises a machine body (1), wherein a positive plate feeding device (12), a negative plate feeding device (14), a diaphragm unwinding mechanism (2) and a roller set (4) are arranged on the machine body (1); the diaphragm unwinding mechanism (2) and the roller set (4) are arranged at the upper end of the machine body (1), a coiled diaphragm (3) is placed on the diaphragm unwinding mechanism (2), the coiled diaphragm (3) is unwound through the diaphragm unwinding mechanism (2), and then tension is released through the roller set (4); the method is characterized in that: the bottom of the machine body (1) is provided with a movable lamination table, the positive plate feeding device (12) and the negative plate feeding device (14) are both arranged above the movable lamination table, the positive plate feeding device (12) and the negative plate feeding device (14) do reciprocating motion up and down and back and forth, and the movable lamination table moves to the position right below the positive plate feeding device (12) and the negative plate feeding device (14) through reciprocating motion left and right; two diaphragm smoothing rollers (6) are movably arranged on the machine body (1) between the positive plate feeding device (12) and the negative plate feeding device (14), the two diaphragm smoothing rollers (6) are arranged in parallel left and right, and the two diaphragm smoothing rollers (6) are both positioned above the movable lamination table and reciprocate up and down relative to the movable lamination table; the movable lamination table is movably provided with a U-shaped clamp (10) used for clamping the diaphragm (3).
2. The lamination device for improving the folding of the lithium ion battery separator membrane according to claim 1, wherein: remove lamination platform including lamination platform body (11), control servo (9), slide rail (8) and support column (7), control servo (9) and set up in organism (1) bottom, control slide rail (8) that the output shaft of servo (9) set up of level, lamination platform body (11) are fixed in support column (7) upper end, support column (7) lower extreme swing joint is on slide rail (8), controls servo (9) control support column (7) and do left and right reciprocating motion on slide rail (8) about to control lamination platform body (11) and remove under positive plate feedway (12) and negative pole piece feedway (14).
3. The lamination device for improving the folding of the lithium ion battery separator membrane according to claim 2, wherein: the U-shaped clamps (10) are movably arranged on the laminating table body (11), and the front end and the rear end of the laminating table body (11) are respectively provided with two U-shaped clamps (10).
4. The lamination device for improving the folding of the lithium ion battery separator membrane according to claim 1, wherein: the two diaphragm smoothing rollers (6) are respectively and movably arranged on the machine body (1) through a support (5).
5. The lamination device for improving the folding of the lithium ion battery separator membrane according to claim 1, wherein: the front-back width of the diaphragm smoothing roller (6) is equal to or wider than the front-back width of the diaphragm (3).
6. The lamination device for improving the folding of the lithium ion battery separator membrane according to claim 1, wherein: a plurality of colloidal particles are uniformly arranged on the diaphragm flattening roller (6).
7. The lamination device for improving the folding of the lithium ion battery separator membrane according to claim 2, wherein: and a diaphragm cutting device is further arranged on the lamination table body (11), and the last layer of diaphragm (3) is cut off after lamination is completed.
8. The lamination device for improving the folding of the lithium ion battery separator membrane according to claim 7, wherein: the diaphragm cutting device cuts off the diaphragm (3) in a thermal cutting mode, the diaphragm cutting device comprises an upper servo, a lower servo, a resistance wire and a temperature control system, the upper servo controls the resistance wire to reciprocate up and down relative to the lamination table body (11), and the temperature control system is connected with the resistance wire and controls the temperature rise of the resistance wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020657227.4U CN212113909U (en) | 2020-04-26 | 2020-04-26 | Lamination device for improving lithium ion battery diaphragm fold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020657227.4U CN212113909U (en) | 2020-04-26 | 2020-04-26 | Lamination device for improving lithium ion battery diaphragm fold |
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| Publication Number | Publication Date |
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| CN212113909U true CN212113909U (en) | 2020-12-08 |
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| CN202020657227.4U Active CN212113909U (en) | 2020-04-26 | 2020-04-26 | Lamination device for improving lithium ion battery diaphragm fold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224368A (en) * | 2021-05-06 | 2021-08-06 | 上海兰钧新能源科技有限公司 | Film sticking machine and pole piece pressing method |
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2020
- 2020-04-26 CN CN202020657227.4U patent/CN212113909U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224368A (en) * | 2021-05-06 | 2021-08-06 | 上海兰钧新能源科技有限公司 | Film sticking machine and pole piece pressing method |
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