CN107626737B - Pole piece rolling system capable of extruding and extending current collector of battery pole piece - Google Patents
Pole piece rolling system capable of extruding and extending current collector of battery pole piece Download PDFInfo
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- CN107626737B CN107626737B CN201710949753.0A CN201710949753A CN107626737B CN 107626737 B CN107626737 B CN 107626737B CN 201710949753 A CN201710949753 A CN 201710949753A CN 107626737 B CN107626737 B CN 107626737B
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- pole piece
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
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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 invention provides a pole piece rolling system capable of extruding and extending a current collector of a battery pole piece, which is controlled based on an external PLC control system and comprises a roll-pair mechanism for rolling the pole piece, wherein one side of the roll-pair mechanism along the pole piece conveying direction is provided with a pole piece conveying mechanism, the other side of the roll-pair mechanism is provided with a pole piece collecting mechanism for collecting the rolled pole piece, the pole piece rolling system also comprises at least one current collector extending and extruding mechanism for rolling an uncoated area of the pole piece, and the current collector extending and extruding mechanism is arranged between the pole piece conveying mechanism and the roll-pair mechanism or between the roll-pair mechanism and the pole piece collecting mechanism. The invention has simple structure, and the current collector of the pole piece is extruded to reach the degree close to the elongation of the coating area of the pole piece, so the wrinkles generated in the rolling process of the pole piece can be effectively avoided. The invention is suitable for rolling all electrode plates at present.
Description
Technical Field
The invention belongs to the field of battery production and manufacturing, and particularly relates to a pole piece rolling system capable of extruding and extending a current collector of a battery pole piece.
Background
In the production and manufacturing process of the lithium battery, the current collector of the pole piece of the battery needs to be rolled, and in the continuous rolling production of the pole piece, the uncoated area of the current collector after rolling often has a wrinkle phenomenon, which is caused by that: in the rolling process of the pole piece, when the coating of the current collector reaches a certain compacted density, the coating area can generate unrecoverable extension deformation under the action of rolling force, and the uncoated area is not under the action of the rolling force, so that the uncoated area is not extended or slightly extended, and wrinkles are caused by different extension amounts in the length direction of each area of the pole piece current collector. The wrinkles on the battery pole piece can greatly affect the performance of the pole piece, so that how to remove the wrinkles from the battery pole piece is a problem which is urgently needed to be solved in the current battery production process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pole piece rolling system capable of extruding and extending a current collector of a battery pole piece so as to remove wrinkles of the battery pole piece in the rolling process.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a can extrude pole piece rolling system who extends battery pole piece mass flow body, based on outside PLC control system's control, it includes carries out rolling pair roller mechanism to the pole piece, be equipped with pole piece conveying mechanism along one side of pole piece direction of delivery to roller mechanism, the opposite side is equipped with the pole piece receiving mechanism who collects the pole piece after rolling, and it still includes that at least one carries out rolling mass flow body extension extrusion mechanism to the pole piece uncoated bay, the mass flow body extends extrusion mechanism and locates pole piece conveying mechanism and to between the roller mechanism, perhaps locates to between roller mechanism and the pole piece receiving mechanism. The invention enables the current collector of the pole piece to reach the degree close to the elongation of the coating area of the pole piece by extruding the current collector of the pole piece, thereby effectively avoiding the wrinkle of the pole piece in the rolling process.
As a limitation of the present invention: the mass flow body extends extrusion mechanism and is equipped with two, locates between pole piece conveying mechanism and the double-roll mechanism for one, and another locates between double-roll mechanism and the pole piece collecting mechanism.
As a definition of the current collector extrusion pole mechanism of the present invention: the current collector extension extrusion mechanism comprises at least one working roll, at least one supporting roll and a pressure device for providing extrusion force, wherein the supporting roll and the pressure device are mutually matched to apply extrusion force for extruding the uncoated area of the current collector sheet towards the working roll.
The current collector extension extrusion mechanism of the invention is further defined as follows: the current collector extending and extruding mechanism comprises a working roller, a supporting roller and a pressure device for providing extrusion force, wherein the supporting roller is used as a support and is arranged right above the working roller and is in contact with the peripheral surface of the working roller; the pressure device is arranged right below the working roller and provides thrust towards the supporting roller for the working roller, and the pole piece is arranged between the supporting roller and the working roller.
As another further definition of the current collector extrusion pole mechanism of the present invention: the current collector extending and extruding mechanism comprises two working rollers, two supporting rollers and a pressure device for providing extrusion force, wherein the two working rollers are arranged in a vertically opposite contact manner, the two supporting rollers are arranged in a vertically opposite non-contact manner, an uncoated area of the pole piece current collector is arranged between the two working rollers, and the two working rollers are clamped between the two supporting rollers; the pressure device is arranged right below the support roller at the lowest end and applies thrust towards the working roller direction to the support roller at the lowest end.
As still another further definition of the current collector extrusion pole mechanism of the present invention: the current collector extending and extruding mechanism comprises two working rollers, two supporting rollers and a pressure device for providing extrusion force, wherein the two working rollers are oppositely arranged in a vertical contact manner, an uncoated area of a current collector of a pole piece is arranged between the two working rollers, the two supporting rollers are symmetrically arranged on two sides of the working roller at the upper end and are in contact arrangement with the working rollers, and an included angle formed by the circle center distance between the two supporting rollers and the working roller at the upper end is less than 180 degrees; the pressure device is arranged right below the working roll at the lowest end and applies thrust towards the direction of the upper end working roll to the working roll at the lowest end.
As another limitation of the present invention: the tension maintaining mechanism is arranged between the pole piece conveying mechanism and the roll aligning mechanism and between the roll aligning mechanism and the pole piece collecting mechanism, the tension maintaining mechanism comprises a force measuring roller and a buffer roller which are used for winding and conveying the pole pieces, the tangent line of the pole piece on the force measuring roller and the diameter of the force measuring roller are arranged in an angle mode, and the tangent line of the pole piece on the buffer roller and the diameter of the buffer roller are arranged in parallel.
As still another limitation of the present invention: at least one steering roller is respectively arranged between the roll aligning mechanism and the pole piece conveying mechanism and between the roll aligning mechanism and the pole piece collecting mechanism.
There is also a limitation to the present invention: the diameter D of the working roll is smaller than the width C of an uncoated area of a current collector of the pole piece, and D-C = (0-15) mm.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
(1) the invention is provided with a double-roller mechanism and a current collector extending and extruding mechanism, wherein the double-roller mechanism is used for extruding the coating area of the pole piece, and the current collector extending and extruding mechanism is used for extruding the uncoated area of the pole piece assembly, so that the coating area and the uncoated area of the current collector of the battery pole piece can be rolled and extended, and wrinkles are avoided;
(2) the current collector extending and extruding mechanism is provided with different modes, so that extrusion on an uncoated area of a current collector is guaranteed, and meanwhile, the positions among all devices are not changed, so that the whole mechanism works more accurately;
(3) the tension maintaining mechanism is arranged to maintain the tension of the pole piece in the rolling process, so that the battery pole piece is uniformly rolled in the rolling process, and the generation of wrinkles is further avoided.
In conclusion, the invention has simple structure and can effectively avoid wrinkles generated in the rolling process of the pole piece.
The invention is suitable for rolling all electrode plates at present.
The present invention will be described in further detail with reference to specific examples.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural diagram of example 2 of the present invention;
FIG. 3 is a schematic structural diagram according to embodiment 3 of the present invention;
FIG. 4 is a schematic structural diagram of a force-measuring roller 8 according to embodiments 1, 2 and 3 of the present invention;
FIG. 5 is a schematic view showing the structure of a buffer roller 9 according to embodiments 1, 2 and 3 of the present invention;
fig. 6 is a schematic view of a matching structure of the pole piece 2 and the first guide roller 81 in embodiments 1, 2, and 3 of the present invention;
fig. 7 is a schematic view of a matching structure of the pole piece 2 and the second guide roller 91 in embodiments 1, 2, and 3 of the present invention;
FIG. 8 is a schematic structural diagram of a pole piece 2 in examples 1, 2, and 3 of the present invention;
fig. 9 is another structural schematic diagram of the pole piece 2 in embodiments 1, 2, and 3 of the present invention;
fig. 10 is a schematic view of rolling an uncoated area 21 of the current collector of the pole piece 2 shown in fig. 5.
In the figure: 1. the device comprises a pole piece conveying mechanism, 2, pole pieces, 21, an uncoated area, 22, a coated area, 3, a working roller, 4, a supporting roller, 5, a pressure device, 6, a pole piece collecting mechanism, 7, a roll aligning mechanism, 71, an upper roller, 72, a lower roller, 8, a force measuring roller, 81, a first guide roller, 82, tension sensors 82, 9, a buffer roller, 91, a second guide roller, 92, a buffer cylinder, 93, a position sensor, 101, 110 and first to tenth steering rollers.
Detailed Description
Embodiment 1 Pole piece rolling system capable of extruding and extending current collector of battery pole piece
The present embodiment is shown in fig. 1, and includes:
receive outside PLC control system control, and relative ground fixed roll mechanism 7, roll mechanism 7 is used for rolling pole piece 2, including the last roller 71 and the lower roller 72 that cooperate to use as shown in fig. 1, roll mechanism 7 is equipped with pole piece conveying mechanism 1 along one side of the direction that the pole piece was carried, and the opposite side is equipped with pole piece receiving mechanism 6 that collects pole piece 2 after pole piece 2 was rolled, conveying mechanism 1 and pole piece receiving mechanism 6 homogeneous phase are fixed the setting to ground, also receive outside PLC control system's control simultaneously.
In order to prevent wrinkles in the rolling process of the pole piece 2, the embodiment further provides two sets of current collector extension extrusion mechanisms controlled by an external PLC control system, wherein one set of current collector extension extrusion mechanism is arranged between the pole piece conveying mechanism 1 and the counter roll mechanism 7, and the other set of current collector extension extrusion mechanism is arranged between the counter roll mechanism 7 and the pole piece collecting mechanism 6.
The current collector extending and extruding mechanism of the embodiment comprises a working roll 3, a supporting roll 4 and a pressure device 5 for providing extruding force, wherein the supporting roll 4 is used for supporting and arranged right above the working roll 3 and is in contact with the peripheral surface of the working roll 3; the pressure device 5 is arranged right below the working roll 3 and provides thrust towards the supporting roll 4 for the working roll 3, the pole piece 2 passes through a gap between the supporting roll 4 and the working roll 3, and the working roll 3 and the supporting roll 4 are matched with each other to roll an uncoated area 21 of a current collector of the pole piece 2.
In order to ensure the tension of the pole piece 2 in the transmission process, the embodiment is further provided with two sets of tension maintaining mechanisms controlled by an external PLC control system, wherein one set of tension maintaining mechanism is arranged between the pole piece conveying mechanism 1 and the roll aligning mechanism 7, and the other set of tension maintaining mechanism is arranged between the roll aligning mechanism 7 and the pole piece collecting mechanism 6. The tension maintaining mechanism comprises a force measuring roller 8 and a buffer roller 9, wherein the force measuring roller 8 is shown in fig. 4 and comprises a first guide roller 81 used for winding and conveying the pole piece 2, a tension sensor 82 is arranged on a rotating shaft of the first guide roller 81, the tension sensor 82 is used for detecting tension in the transmission process of the pole piece 2 and transmitting the detected tension to an external PLC control system, a tangent line of the pole piece 2 and the first guide roller 81 is arranged at an angle with the diameter of the first guide roller 81, specifically, as shown in fig. 6, the tensions of the pole piece 2 on two sides of the first guide roller 81 are both F, and further, the resultant force formed by the pole piece 2 on the first guide roller 81 is F1; buffer roller 9 is shown including second deflector roll 91 in fig. 5, is equipped with cushion cylinder 92 in the axis of rotation of second deflector roll 91, is equipped with position sensor 93 in the axis of rotation of second deflector roll 91, position sensor 93 is used for detecting the positional information of second deflector roll 91 to send the information that detects to PLC control system, PLC control system then controls cushion cylinder 92 and adjusts the position of second deflector roll 91, and the tangent line of pole piece 2 and second roller 91 and the diameter parallel arrangement of second deflector roll 91, specifically as shown in fig. 7, the tension that pole piece 2 is located second deflector roll 91 both sides is F, and cushion cylinder 92 is F2 to the thrust of second deflector roll 91, F = F2 under the normal condition.
In order to better transmit the pole piece 2 in the embodiment, at least one steering roller is respectively arranged between the roller pair mechanism 7 and the pole piece conveying mechanism 1 and between the roller pair mechanism 7 and the pole piece collecting mechanism 6. In the embodiment, 6 turning rollers are arranged, wherein the first to third turning rollers 101 to 103 are sequentially arranged from the pole piece conveying mechanism 1 to the roll aligning mechanism 7 and are arranged between the pole piece conveying mechanism 1 and the roll aligning mechanism 7, the fourth to sixth turning rollers 104 to 106 are sequentially arranged from the roll aligning mechanism 7 to the pole piece collecting mechanism 6 and are arranged between the roll aligning mechanism 7 and the pole piece collecting mechanism 6, a set of current collector extending and extruding mechanism is arranged between the first turning roller 101 and the second turning roller 102, a buffer roller 9 is arranged between the current collector extending and extruding mechanism and the second turning roller 102, and a force measuring roller 8 is arranged between the second turning roller 102 and the third turning roller 103; a force measuring roller 8 is also arranged between the fourth steering roller 104 and the fifth steering roller 105, another set of pole piece current collector extending and extruding mechanism is arranged between the fifth steering roller 105 and the sixth steering roller 106, and a buffer roller 9 is also arranged between the fifth steering roller 105 and the second set of pole piece current collector extending and extruding mechanism.
On the current collector of the rolled pole piece 2 of this embodiment, at least one coated area 22 is provided, and left and right sides of the coated area 22 are respectively provided with an uncoated area 21. Fig. 8 of this example shows a schematic view of the structure of the pole piece 2 with only one coated region 22, while fig. 9 shows a schematic view of the structure of the pole piece 2 with three coated regions 22, where each coated region 22 is still provided with uncoated regions 21 on both left and right sides, but one uncoated region 21 is shared between two adjacent coated regions 22.
In addition, the specific number and the position of the pole piece conveying mechanism 1, the current collector extending and extruding mechanism, the tension maintaining mechanism, the roller aligning mechanism 7, the pole piece collecting mechanism 6 and the turning rollers in the embodiment can be adjusted correspondingly according to the actual situation. In the embodiment, the surface hardness of all the working rolls 3 is greater than or equal to 55HRC, as shown in fig. 10, the diameter D of the working roll 3 is smaller than the width C of the uncoated area of the current collector of the pole piece, and D-C = (0-15) mm, and the working roll has rotational power, and the rotational speed of the working roll is matched with the transfer speed of the pole piece conveying mechanism 1, the roll aligning mechanism 7, and the pole piece collecting mechanism 6.
The working principle of the embodiment is as follows: the pole piece conveying mechanism 1 is wound with a pole piece 2 made of a long strip-shaped foil, the pole piece conveying mechanism 1 can keep a certain tension F to convey the pole piece 2 which is not compacted, the pole piece 2 sequentially passes through a first steering roller 101, a first set of current collector extending and extruding mechanism, a buffer roller 9, a second steering roller 102, a force measuring roller 8 and a third steering roller 103 to be conveyed to a roll-aligning mechanism 7, when the pole piece 2 passes through the first set of current collector extending and extruding mechanism, an uncoated area 21 of a current collector can be rolled and extended, when the pole piece 2 passes through the roll-aligning mechanism 7, a coating area 22 of the current collector can be rolled and extended, namely, the coating area 22 and the uncoated area 21 of the current collector are rolled and extended, and wrinkles are effectively eliminated. In the transmission process, the tension sensor 82 arranged on the force measuring roller 8 detects the tension F of the pole piece 2 in real time and transmits a detected tension signal to an external PLC control system, the external PLC control system calculates a resultant force F1, when the tension F changes suddenly, the resultant force F1 also changes, the balance between the tension F and the thrust F2 of the buffer cylinder 93 is broken, the position of the second guide roller 91 changes, at the moment, the position sensor 93 outputs a signal to the external PLC control system according to the position change, and the thrust F2 of the buffer cylinder 93 is adjusted through PID adjustment of the external PLC control system, so that the tension F of the pole piece 2 and the thrust F2 of the buffer cylinder 93 reach balance again, and the tension F of the clamping piece 2 is in a proper range.
After the rolled pole piece 2 sequentially passes through the fourth steering roller 104, the force measuring roller 8, the fifth steering roller 105, the buffer roller 9, the second set of current collector extension extrusion mechanism and the sixth steering roller 106, the uncoated area 21 of the current collector of the pole piece 2 is rolled again to further extend the current collector, the effect of eliminating wrinkles is basically achieved, and finally the pole piece 2 is wound through the pole piece collecting mechanism 6 to finish collecting the pole piece 2.
Embodiment 2 pole piece rolling system capable of extruding and extending current collector of battery pole piece
This embodiment has substantially the same structure as that of embodiment 1, except that, as shown in fig. 2, the configuration of the current collector extension pressing mechanism and the number of the turning rolls are different from those of embodiment 1. The current collector extending and extruding mechanism in the embodiment is provided with two working rollers 3, two supporting rollers 4 and a pressure device for providing extrusion force, wherein the two working rollers 3 are arranged in a vertically opposite contact manner, the two supporting rollers 4 are arranged in a vertically opposite non-contact manner, the pole piece 2 passes through a gap between the two working rollers 3, and the two working rollers 3 are clamped between the two supporting rollers 4; the pressure device 5 is provided directly below the lowermost support roller 4, and applies a thrust force in the direction toward the work roller 3 to the lowermost support roller 4. And the turning rollers in this embodiment are provided with ten turning rollers, wherein the first to fifth turning rollers 101 to 105 are sequentially arranged between the pole piece conveying mechanism 1 and the roll-setting mechanism 7, the sixth to tenth turning rollers 106 to 110 are sequentially arranged between the roll-setting mechanism 7 and the pole piece collecting mechanism 6, current collector extending and extruding mechanisms are respectively arranged between the first turning roller 101 and the second turning roller 102, between the ninth turning roller 109 and the tenth turning roller 110, buffer rollers 9 are respectively arranged between the third turning roller 103 and the fourth turning roller 104, between the seventh turning roller 107 and the eighth turning roller 108, and force measuring rollers 8 are respectively arranged between the fourth turning roller 104 and the fifth turning roller 105, and between the sixth turning roller 106 and the seventh turning roller 107. The rest of the structure of this embodiment is completely the same as embodiment 1.
Embodiment 3 pole piece rolling system capable of extruding and extending current collector of battery pole piece
The structure of this embodiment is substantially the same as that of embodiments 1 and 2, except that, as shown in fig. 3, the current collector extending and extruding mechanism includes two working rolls 3, two supporting rolls 4, and a pressure device for providing extruding force, the two working rolls 3 are arranged in a vertically opposite contact manner, a pole piece passes through a gap between the two working rolls 3, the two supporting rolls 4 are symmetrically arranged on two sides of the working roll 1 at the upper end and are arranged in a contact manner with the working roll 1 at the upper end, and an included angle formed by the distance between the two supporting rolls 4 and the center of the working roll 3 at the upper end is smaller than 180 °, so that the two supporting rolls 4 are used as supports for the working roll 3 at the upper end, and can limit the displacement of the working rolls 3 in 2 directions, and further, the 4 directions of the working rolls 3 are all limited, so that the two working; the pressure device 5 is provided directly below the lowermost work roll 3, and applies a thrust force in the direction toward the upper work roll 3 to the lowermost work roll 3. In this embodiment, as in embodiment 2, 10 turning rolls are provided, and the positions of the current collector stretching and pressing mechanism, the force measuring roll 8, and the buffer roll 9 are also the same as those in embodiment 2. The rest of the structure of this embodiment is completely the same as embodiments 1 and 2.
Claims (5)
1. The utility model provides a can extrude pole piece rolling system of extension battery pole piece mass flow body, based on outside PLC control system's control, it includes carries out rolling pair roller mechanism (7) to pole piece (2), one side along pole piece (2) direction of delivery is equipped with pole piece conveying mechanism (1) to roller mechanism (7), and the opposite side is equipped with the pole piece of collecting pole piece (2) after the rolling and collects mechanism (6), its characterized in that: the current collector extension extrusion mechanism is arranged between the pole piece conveying mechanism (1) and the roll aligning mechanism (7) or between the roll aligning mechanism (7) and the pole piece collecting mechanism (6); the current collector extending and extruding mechanism comprises at least one working roll (3), at least one supporting roll (4) and a pressure device (5) for providing extruding force, wherein the pressure device (5) is matched with the supporting roll (4) or the working roll (3) to enable the supporting roll (4) and the working roll (3) to have the extruding force for extruding towards an uncoated area (21) of a current collector of the pole piece (2);
the current collector extending and extruding mechanism is any one of the following structures:
A. the current collector extending and extruding mechanism comprises a working roller (3), a supporting roller (4) and a pressure device (5) for providing extrusion force, wherein the supporting roller (4) is used as a support and is arranged right above the working roller (3) and is in contact with the peripheral surface of the working roller (3); the pressure device (5) is arranged right below the working roll (3) and provides thrust towards the supporting roll (4) for the working roll (3), and the pole piece (2) is arranged between the supporting roll (4) and the working roll (3);
B. the current collector extending and extruding mechanism comprises two working rollers (3), two supporting rollers (4) and a pressure device (5) for providing extrusion force, wherein the two working rollers (3) are arranged in a vertically opposite contact mode, the two supporting rollers (4) are arranged in a vertically opposite non-contact mode, an uncoated area (21) of a current collector of the pole piece (2) is arranged between the two working rollers (3), and the two working rollers (3) are clamped between the two supporting rollers (4); the pressure device (5) is arranged right below the supporting roller (4) at the lowest end and applies thrust towards the working roller (3) to the supporting roller (4) at the lowest end;
C. the current collector extending and extruding mechanism comprises two working rollers (3), two supporting rollers (4) and a pressure device (5) for providing extrusion force, the two working rollers (3) are arranged in a vertically opposite contact manner, an uncoated area (21) of a current collector of the pole piece (2) is arranged between the two working rollers (3), the two supporting rollers (4) are symmetrically arranged on two sides of the working roller (3) at the upper end and are arranged in a contact manner with the working rollers (3), and an included angle formed by the circle center distance between the two supporting rollers (4) and the working roller (3) at the upper end is smaller than 180 degrees; the pressure device (5) is arranged right below the working roll (3) positioned at the lowest end and applies thrust towards the direction of the upper end working roll (3) to the working roll (3) positioned at the lowest end.
2. The pole piece rolling system capable of extruding an extended battery pole piece current collector of claim 1, wherein: the current collector extends and extrudees the mechanism and is equipped with two, one locates between pole piece conveying mechanism (1) and to roller mechanism (7), and another locates between roller mechanism (7) and pole piece collection mechanism (6).
3. The pole piece rolling system capable of extruding an extended battery pole piece current collector of claim 1 or 2, wherein: at least one steering roller is respectively arranged between the roll aligning mechanism (7) and the pole piece conveying mechanism (1) and between the roll aligning mechanism (7) and the pole piece collecting mechanism (6).
4. The pole piece rolling system capable of extruding an extended battery pole piece current collector of claim 1 or 2, wherein: the diameter D of the working roll is smaller than the width C of an uncoated area (21) of a current collector of the pole piece (2), and C-D = (0-15) mm.
5. The pole piece rolling system capable of extruding an extended battery pole piece current collector of claim 3, wherein: the diameter D of the working roll is smaller than the width C of an uncoated area (21) of a current collector of the pole piece (2), and C-D = (0-15) mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019538554A JP6937048B2 (en) | 2017-03-30 | 2017-10-18 | A piece rolling system that can extrude and stretch a current collector of battery pieces |
| PCT/CN2017/106700 WO2018176802A1 (en) | 2017-03-30 | 2017-10-18 | Electrode plate rolling system capable of extruding and extending electrode plate current collector |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017102003135 | 2017-03-30 | ||
| CN201710200313.5A CN106910896A (en) | 2017-03-30 | 2017-03-30 | A kind of pole piece current collector stretch system of squash type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107626737A CN107626737A (en) | 2018-01-26 |
| CN107626737B true CN107626737B (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710200313.5A Pending CN106910896A (en) | 2017-03-30 | 2017-03-30 | A kind of pole piece current collector stretch system of squash type |
| CN201710949753.0A Active CN107626737B (en) | 2017-03-30 | 2017-10-13 | Pole piece rolling system capable of extruding and extending current collector of battery pole piece |
| CN201721315787.6U Active CN207288352U (en) | 2017-03-30 | 2017-10-13 | A kind of pole piece rolling system that can extrude extension battery pole piece collector |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710200313.5A Pending CN106910896A (en) | 2017-03-30 | 2017-03-30 | A kind of pole piece current collector stretch system of squash type |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721315787.6U Active CN207288352U (en) | 2017-03-30 | 2017-10-13 | A kind of pole piece rolling system that can extrude extension battery pole piece collector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6937048B2 (en) |
| CN (3) | CN106910896A (en) |
| WO (1) | WO2018176802A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023204455A1 (en) * | 2022-04-20 | 2023-10-26 | 주식회사 엘지에너지솔루션 | Device for manufacturing electrode |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910896A (en) * | 2017-03-30 | 2017-06-30 | 邢台海裕锂能电池设备有限公司 | A kind of pole piece current collector stretch system of squash type |
| CN110806356B (en) * | 2019-09-11 | 2022-01-28 | 浙江超威创元实业有限公司 | Method for detecting extension amount of positive plate |
| CN110586650A (en) * | 2019-09-19 | 2019-12-20 | 江苏塔菲尔新能源科技股份有限公司 | Rolling system of lithium battery pole piece |
| CN111900324B (en) * | 2020-07-17 | 2022-11-15 | 合肥国轩高科动力能源有限公司 | Lithium-ion battery pole piece rolling device |
| CN112018323A (en) * | 2020-08-13 | 2020-12-01 | 华中科技大学 | Lithium ion battery pole piece and preparation method thereof |
| EP4016664A1 (en) * | 2020-12-17 | 2022-06-22 | VARTA Microbattery GmbH | Device and method for compacting electrode material applied to a collector belt |
| JP7300655B2 (en) | 2021-03-12 | 2023-06-30 | プライムプラネットエナジー＆ソリューションズ株式会社 | Roll press device and method for manufacturing compacted strip electrode plate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143628A (en) * | 2013-05-08 | 2014-11-12 | 株式会社日立电力解决方案 | Rolling method and rolling device for electrode material |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5912039A (en) * | 1982-07-09 | 1984-01-21 | Nippon Kokan Kk <Nkk> | Tension control device in line with vertical furnace |
| JP2994132B2 (en) * | 1992-03-24 | 1999-12-27 | 株式会社東芝 | Coater control device |
| JPH0615802U (en) * | 1992-07-21 | 1994-03-01 | 宇部興産株式会社 | Rolling mill |
| JPH0648627A (en) * | 1992-07-30 | 1994-02-22 | Komori Corp | Tension controller and controlling method |
| JP2001001011A (en) * | 1999-06-16 | 2001-01-09 | Kobe Steel Ltd | High draft rolling mill |
| WO2006080045A1 (en) * | 2005-01-25 | 2006-08-03 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Facility for forming battery electrode plate |
| JP2012069266A (en) * | 2010-09-21 | 2012-04-05 | Nissan Motor Co Ltd | Press method for electrode foil for battery |
| JP5716622B2 (en) * | 2011-09-26 | 2015-05-13 | 日産自動車株式会社 | Strip electrode manufacturing apparatus and manufacturing method |
| JP2013235673A (en) * | 2012-05-07 | 2013-11-21 | Toray Eng Co Ltd | Battery electrode sheet manufacturing apparatus and manufacturing method |
| JP2014103068A (en) * | 2012-11-22 | 2014-06-05 | Mitsubishi Heavy Ind Ltd | Press device for electrode material and press-processing method |
| JP2015230825A (en) * | 2014-06-05 | 2015-12-21 | 株式会社豊田自動織機 | Press device |
| JP5717913B1 (en) * | 2014-12-11 | 2015-05-13 | 株式会社日立パワーソリューションズ | Thickness gauge and roll press machine provided with the thickness gauge |
| JP6027701B1 (en) * | 2016-05-20 | 2016-11-16 | 大野ロール株式会社 | Roll press machine with wrinkle prevention device and roll press method |
| CN106910896A (en) * | 2017-03-30 | 2017-06-30 | 邢台海裕锂能电池设备有限公司 | A kind of pole piece current collector stretch system of squash type |
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| WO2023204455A1 (en) * | 2022-04-20 | 2023-10-26 | 주식회사 엘지에너지솔루션 | Device for manufacturing electrode |
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| Publication number | Publication date |
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| JP2019537230A (en) | 2019-12-19 |
| WO2018176802A1 (en) | 2018-10-04 |
| CN107626737A (en) | 2018-01-26 |
| JP6937048B2 (en) | 2021-09-22 |
| CN106910896A (en) | 2017-06-30 |
| CN207288352U (en) | 2018-05-01 |
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