CN111786003A - Battery cell positive and negative plate opposite pasting equipment and method - Google Patents

Battery cell positive and negative plate opposite pasting equipment and method Download PDF

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Publication number
CN111786003A
CN111786003A CN202010676055.XA CN202010676055A CN111786003A CN 111786003 A CN111786003 A CN 111786003A CN 202010676055 A CN202010676055 A CN 202010676055A CN 111786003 A CN111786003 A CN 111786003A
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CN
China
Prior art keywords
roller body
positive
negative
roller
negative pole
Prior art date
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Pending
Application number
CN202010676055.XA
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Chinese (zh)
Inventor
赵盛宇
林国栋
邓玮
温燕修
于鑫
黄瀚翔
陈文文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Hymson Laser Intelligent Equipment Co Ltd
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Shenzhen Hymson Laser Intelligent Equipment Co Ltd
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Application filed by Shenzhen Hymson Laser Intelligent Equipment Co Ltd filed Critical Shenzhen Hymson Laser Intelligent Equipment Co Ltd
Priority to CN202010676055.XA priority Critical patent/CN111786003A/en
Publication of CN111786003A publication Critical patent/CN111786003A/en
Pending legal-status Critical Current

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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
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • 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
    • 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 discloses a device and a method for oppositely pasting positive and negative pole pieces of a battery cell. The battery cell positive and negative pole piece opposite-pasting equipment comprises a rack, a first roller body, a second roller body, an adsorption device, a feeding device and a driving device, wherein the first roller body and the second roller body are arranged on the rack, roller cores are arranged on the same plane, the adsorption device is arranged on the first roller body and the second roller body, the feeding device is used for conveying positive and negative pole pieces to be close to the first roller body or the second roller body, and the driving device is used for driving the first roller body and the second roller body; according to the equipment for oppositely pasting the positive and negative pole pieces of the battery core, the equipment for oppositely pasting the positive and negative pole pieces of the battery core is simple in structure and can be used for efficiently oppositely pasting the positive and negative pole pieces. According to the method for pasting the positive and negative pole pieces of the battery cell, the four steps of feeding, transferring, pasting and moving out are carried out simultaneously, and the pasting efficiency of the positive and negative pole pieces is effectively improved.

Description

Battery cell positive and negative plate opposite pasting equipment and method
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a device and a method for oppositely pasting positive and negative pole pieces of a battery core.
Background
There are many battery cell forming processes, one of which requires the positive and negative electrode plates to be attached, and the quality of the method for attaching the positive and negative electrode plates to each other relates to the efficiency of subsequent battery cell forming. The existing method for attaching positive and negative pole pieces to each other is to use a manipulator to grab the pole pieces and then attach the pole pieces to two sides of an isolation film respectively. But the action speed of the mechanical arm is slow, the time for the mechanical arm to take the pole piece in the reciprocating movement is long, the space for improving the material grabbing efficiency is limited, and the overall efficiency for attaching the positive pole piece and the negative pole piece is low.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art. Therefore, the invention provides the equipment for oppositely pasting the positive and negative pole pieces of the battery core, which has a simple structure and can efficiently oppositely paste the positive and negative pole pieces.
The invention also provides a method for attaching the positive and negative pole pieces of the battery cell.
According to the embodiment of the first aspect of the invention, the equipment for attaching the positive and negative electrode plates of the battery cell comprises: a frame; the first roller body is arranged on the rack; the second roller body is arranged on the rack, and the roller centers of the first roller body and the second roller body are arranged on the same plane; the feeding devices are arranged on the rack and are used for conveying positive plates or negative plates to be close to the first roller body or the second roller body respectively; the adsorption device is arranged on the first roller body and the second roller body; a drive device for driving the first roller body and the second roller body.
According to the equipment for oppositely pasting the positive and negative pole pieces of the battery cell, the technical effects are at least as follows: the barrier film sets up between first roll body and second roll body, positive plate and negative pole piece are close to first roll body or second roll body under material feeding unit's transport, under adsorption equipment's effect, first roll body or second roll body will be close to its positive plate or negative pole piece and adsorb, and drive positive plate or negative pole piece common rotation under drive arrangement's drive, when positive plate or negative pole piece along with first roll body or second roll body move between the two rollers, positive plate or negative pole piece just are set up and accomplish the laminating of positive and negative pole piece on the barrier film.
According to some embodiments of the present invention, the roll frame further comprises a control device, the first roll body and the second roll body are movably disposed on the frame, and the control device is configured to adjust a distance and a pressure between the first roll body and the second roll body.
According to some embodiments of the invention, the first roller body and the second roller body are the same size.
According to some embodiments of the invention, the first roller body and the second roller body are different sizes.
According to some embodiments of the invention, the apparatus further comprises a positioning device for positioning the pole piece adjacent to the first roller body or the second roller body.
According to some embodiments of the invention, the positioning device comprises a stopper and a correction platform, the correction platform is provided with a plurality of correction bodies, the correction bodies are inclined at a certain angle with the conveying direction of the feeding device, and the stopper is arranged at the edge of the positioning device.
According to some embodiments of the invention, the device further comprises a traction device, the traction device is arranged on the frame, and the traction device is used for guiding the isolating membrane out of the space between the first roller body and the second roller body.
According to some embodiments of the invention, the feeding device is a conveyor belt.
According to the embodiment of the second aspect of the invention, the method for oppositely pasting the positive and negative pole pieces of the battery core comprises the following steps: conveying the positive plate and the negative plate through a feeding device to enable the negative plate and the positive plate to be close to the first roller body and the second roller body respectively; the first roller body rotates and sucks up the negative pole piece close to the first roller body, and the second roller body rotates and sucks up the positive pole piece close to the second roller body; the first roller body and the second roller body respectively drive the negative plate and the positive plate to rotate, the negative plate and the positive plate are respectively pressed and attached to two sides of the isolation film between the two rollers, and the isolation film attached with the plate group is led out between the two rollers by the traction device.
According to the method for attaching the positive and negative pole pieces of the battery cell to each other, at least the following technical effects are achieved: the positive plate or the negative plate is continuously close to the first roller body or the second roller body under the conveying of the feeding device, the positive plate and the negative plate are continuously adsorbed, transferred and pressed on the isolating film between the two roller bodies by the first roller body and the second roller body, the isolating film with the positive plate and the negative plate is continuously led out from the two roller bodies by the traction device, and the whole positive plate and negative plate mounting process can be efficiently carried out.
According to some embodiments of the present invention, the step of "the first roller body sucks up the negative electrode tab adjacent thereto while rotating, and the second roller body sucks up the positive electrode tab adjacent thereto while rotating" further includes the following steps: the feeding device respectively feeds the negative plate and the positive plate to the positioning device; after the negative plate and the positive plate are conveyed to the positioning device, the negative plate and the positive plate move obliquely under the driving of the correcting body and contact with the stop blocks at the edge of the positioning device to complete positioning.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a device for attaching positive and negative electrode plates of a battery cell to each other according to an embodiment of the present invention;
fig. 2 is a top view of a cell positive and negative electrode plate attaching device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another device for attaching positive and negative electrode plates of a battery cell according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a positioning device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another positioning device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a separator provided with positive and negative electrode plates according to an embodiment of the present invention.
Reference numerals:
the device comprises a first roller body 110, a second roller body 120, a conveyor belt 200, a driving device 300, a control device 400, a positioning device 500, a correction platform 510, a correction body 511, a first stop block 520, a second stop block 530, a traction device 600, a separation film 710, a positive electrode sheet 720 and a negative electrode sheet 730.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
The following describes the cell positive and negative pole piece facing equipment according to the embodiment of the invention with reference to fig. 1 to 6.
For example, as shown in fig. 1 and fig. 2, the device for attaching positive and negative electrode plates of a battery cell to each other according to an embodiment of the present invention includes: a frame; the first roller body 110, the first roller body 110 is set up on the framework; the second roller 120, the second roller 120 is arranged on the frame, and the roller centers of the first roller 110 and the second roller 120 are arranged on the same plane; the feeding devices are arranged on the rack and are used for conveying the positive plate 720 or the negative plate 730 to be close to the first roller body 110 or the second roller body 120 respectively; the adsorption devices are arranged on the first roller body 110 and the second roller body 120; and a driving device 300, wherein the driving device 300 is used for driving the first roller body 110 and the second roller body 120.
As shown in fig. 1 and 2, the first roller body 110 and the second roller body 120 are both disposed on the frame, the roller centers of the first roller body 110 and the second roller body 120 are disposed on the same horizontal plane, and the distance between the first roller body 110 and the second roller body 120 is small, leaving only a gap through which the positive electrode plate 720, the negative electrode plate 730, and the separator 710 pass. A feeding device is respectively arranged below the first roller body 110 and the second roller body 120, the end of each feeding device along the conveying direction coincides with the projection of the first roller body 110 or the second roller body 120 in the vertical direction, and the feeding device may be a conveyor belt 200 or a driving roller, but is not limited to one of the two. The driving device 300 is configured to drive the first roller 110 and the second roller 120 to rotate, and the rotation directions of the first roller 110 and the second roller 120 are shown in the figure, and it should be noted that the rotation directions of the first roller 110 and the second roller 120 are not limited to the directions shown in the figure, and a user can set the rotation directions of the first roller 110 and the second roller 120 according to an actual feeding direction. The method for driving the first roller 110 and the second roller 120 by the driving device 300 may be single-drive control, or double-drive synchronous control or double-drive asynchronous control, and during synchronous control, the rotation speeds of the first roller 110 and the second roller 120 are the same; in the asynchronous control, the rotation speeds of the first roller body 110 and the second roller body 120 may be the same or different. By providing the first roller body 110 and the second roller body 120 with the adsorption device, the first roller body 110 and the second roller body 120 adsorb the positive electrode sheet 720 or the negative electrode sheet 730 conveyed therebelow when rotating. The method for adsorbing the pole pieces by the first roller body 110 and the second roller body 120 may be negative pressure adsorption or electrostatic adsorption, but is not limited to one of the two. When the adsorption method is negative pressure adsorption, a plurality of tiny through holes are formed in the first roller body 110 and the second roller body 120, a vacuum pump is arranged on the roller bodies, the vacuum pump works to enable the internal air pressure of the roller bodies to be smaller than the external air pressure, and when the pole piece moves to the position right below the roller bodies, the pole piece is adsorbed by the through holes in the roller bodies and moves together with the roller bodies; when the adsorption method is electrostatic adsorption, the first roller 110 and the second roller 120 are made of an insulating material, static electricity is generated on the surfaces of the first roller 110 and the second roller 120 before use, and when the pole piece moves to a position right below the rollers, the pole piece is adsorbed on the surface of the first roller 110 or the second roller 120 under the action of the static electricity.
According to the equipment for oppositely attaching the positive and negative pole pieces of the battery cell, disclosed by the embodiment of the invention, the positive and negative pole pieces can be efficiently oppositely attached, specifically, the isolation film 710 is arranged between the first roller body 110 and the second roller body 120, the feeding device sends the positive pole piece 720 to the lower part of the second roller body 120, and conveys the negative pole piece 730 to the lower part of the first roller body 110, the first roller body 110 and the second roller body 120 adsorb the positive pole piece 720 or the negative pole piece 730 which is positioned right below the first roller body under the action of the adsorption device, and the driving device 300 drives the positive pole piece 720 or the negative pole piece 730 to jointly rotate, and when the positive pole piece 720 or the negative pole piece 730 moves between two rollers along with the roller bodies, the positive pole piece 720 or the negative pole piece 730 can be pressed and attached to the isolation film 710 between the two roller bodies to finish the oppositely attaching of the. The fixing mode between the positive and negative electrode plates and the isolation film 710 includes four modes of glue, static electricity, molecular exchange and exhaust, but not limited to one of the four modes. Specifically, when the positive and negative electrode plates are fixed to the separator 710 by glue, the two sides of the separator 710 are coated with glue in advance, and when the positive electrode plate 720 or the negative electrode plate 730 reaches between two rollers along with the rotation of the roller body, the positive electrode plate 720 or the negative electrode plate 730 is pressed against the two sides of the separator 710, thereby completing the connection between the positive and negative electrode plates and the separator 710. After the facing, the user moves the part of the isolation film 710 with the positive and negative pole pieces out between the two rollers, and the first roller body 110 or the second roller body 120 can continue to set the positive pole piece 720 or the negative pole piece 730 on the isolation film 710. The first roller body 110, the second roller body 120 and the feeding device do not stop, the transfer and the facing of the positive and negative pole pieces are carried out simultaneously, and the facing of the positive and negative pole pieces is efficiently completed.
In some embodiments of the present invention, a control device 400 is further included, the first roller 110 and the second roller 120 are movably disposed on the frame, and the control device 400 is used for adjusting the distance and the pressure between the first roller 110 and the second roller 120. For example, as shown in fig. 2, the first roller body 110 and the second roller body 120 are movably disposed on the frame, and the control device 400 is disposed on both sides of the first roller body 110 and the second roller body 120. When the positive and negative electrode plates with different specifications need to be attached in actual production, a user can adjust the distance between the two rollers and the pressure through the control device 400, so that the positive and negative electrode plates are smoothly attached.
In some embodiments of the present invention, the first roller body 110 and the second roller body 120 are the same size. For example, as shown in fig. 1, the roll centers of the first roll body 110 and the second roll body 120 are disposed on the same horizontal plane, and the diameters of the first roll body 110 and the second roll body 120 are the same. By the arrangement, the positive and negative electrode plates with similar sizes can be stably arranged on the two sides of the isolation film 710 by the first roller body 110 and the second roller body 120.
In some embodiments of the present invention, the first roller body 110 and the second roller body 120 are different sizes. For example, as shown in fig. 3, the roll centers of the first roll body 110 and the second roll body 120 are disposed on the same horizontal plane, and the diameter of the first roll body 110 is larger than that of the second roll body 120. When the positive and negative electrode plates with large size difference need to be attached to each other in actual production, the positive and negative electrode plates are adsorbed and transferred by the roller bodies with the same size, so that the electrode plates can not be normally adsorbed by the roller bodies, or the electrode plates are attached to the isolating film 710 by the roller bodies, and the electrode plates are askew due to the fact that the positions of the electrode plates are deviated. In order to ensure that the roller body can normally adsorb the pole pieces and prevent the pole pieces from being pasted askew, the sizes of the first roller body 110 and the second roller body 120 need to be selected according to the actual sizes of the pole pieces in actual production.
In some embodiments of the present invention, a positioning device 500 is further included, and the positioning device 500 is used to position the pole piece near the first roller body 110 or the second roller body 120. For example, as shown in fig. 1 and 3, two positioning devices 500 are respectively provided at the ends of the two feeding devices in the conveying direction, and just below the first roller body 110 and the second roller body 120. By arranging the positioning device 500 in the equipment for attaching the positive and negative electrode plates of the battery cell to each other, before the positive and negative electrode plates are adsorbed by the first roller body 110 or the second roller body 120, the positioning device 500 can firstly correct the positions of the electrode plates, so that the position accuracy of attaching the positive and negative electrode plates of the battery cell to each other is effectively improved, and the production quality of the battery cell lamination raw material is improved. The positioning device 500 may be a robot positioning mechanism, a friction roller positioning mechanism, a friction wheel positioning mechanism, an air-floating positioning mechanism, or a CCD vision detection positioning mechanism, but is not limited to one of the five mechanisms.
In some embodiments of the present invention, the positioning device 500 includes a stopper and a correction platform 510, the correction platform 510 is provided with a plurality of correction bodies 511, the correction bodies 511 are disposed at an angle to the conveying direction of the feeding device, and the stopper is disposed at the edge of the positioning device 500. For example, as shown in fig. 4 and 5, a tab is provided at one end of the positive and negative electrode sheets, and the inclination direction of the corrector 511 is determined depending on the direction of the tab: when the positive and negative electrode plates are attached to the separator 710 and the tabs thereof are disposed at the same end, the inclination directions of the corrector 511 are opposite; when the positive and negative electrode plates are attached to the separator 710 and the tabs are disposed at different ends, the inclination directions of the correctors 511 are the same. The oblique movement of the pole piece on the corrector 511 can be orthogonally decomposed into two movements pointing to a pair of adjacent sides of the positioning device 500 and perpendicular to each other, and the two adjacent sides of the positioning device 500 pointed by the orthogonally decomposed movements are respectively provided with a first stopper 520 and a second stopper 530. The pole pieces are transported to the leveling platform 510 and driven by the leveling body 511 to approach the first stop 520 and the second stop 530. When the pole piece contacts the first stop 520 and the second stop 530, positioning in the positioning device 500 is completed. The angle of the corrector 511 is required to be greater than 0 ° and less than 90 °, so as to ensure that the pole piece can move obliquely under the conveying action of the corrector 511.
In some embodiments of the present invention, a pulling device 600 is further included, the pulling device 600 is disposed on the frame, and the pulling device 600 is used for guiding the isolation film 710 out between the first roller body 110 and the second roller body 120. For example, as shown in fig. 1 and 3, a drawing device 600 is disposed above the first roller body 110 and the second roller body 120, and one end of the separation film 710 is connected to the drawing device 600. Under the traction of the traction device 600, the raw material of the isolation film 710 can be continuously unwound and continuously pass between the first roller body 110 and the second roller body 120. By arranging the traction device 600 in the equipment for attaching the positive and negative pole pieces of the electric core, the isolation film 710 is not required to be manually pulled by a user, and the first roller body 110, the second roller body 120, the feeding device and the traction device 600 continuously act, so that the positive and negative pole pieces can be continuously pressed on two sides of the isolation film 710 and the isolation film 710 with the positive and negative pole pieces can be pulled out, and the efficiency of attaching the positive and negative pole pieces is effectively improved.
In some embodiments of the invention, the feeding device is a conveyor belt 200. For example, as shown in fig. 1 to 5, the pole piece is transported by the conveyor 200 to the positioning device 500, and the position of the pole piece is corrected by the positioning device 500 and then transferred to both sides of the separator 710 by the first roller 110 or the second roller 120. The conveying belts 200 are arranged in the equipment for attaching the positive and negative pole pieces of the battery cell, so that the pole pieces can be quickly and accurately conveyed to the positioning device 500, and the efficiency of attaching the positive and negative pole pieces of the battery cell is effectively improved.
According to the embodiment of the second aspect of the invention, the method for attaching the positive and negative pole pieces of the battery cell comprises the following steps: conveying the positive plate 720 and the negative plate 730 through a feeding device to enable the negative plate 730 and the positive plate 720 to be close to the first roller body 110 and the second roller body 120 respectively; the first roller body 110 sucks up the negative electrode sheet 730 adjacent thereto while rotating, and the second roller body 120 sucks up the positive electrode sheet 720 adjacent thereto while rotating; the first roller body 110 and the second roller body 120 respectively drive the negative plate 730 and the positive plate 720 to rotate, the negative plate 730 and the positive plate 720 are respectively pressed and attached to two sides of the isolating film 710 between the two rollers, and the isolating film 710 attached with the electrode plate group is led out between the two rollers by the traction device 600.
By the above attaching method, the positive electrode sheet 720 and the negative electrode sheet 730 can be efficiently and continuously attached to both sides of the separator 710 at a constant pitch. Specifically, the feeding device, the first roller 110, the second roller 120, and the traction device 600 do not stop, and the pole pieces are conveyed to the lower side of the roller and then adsorbed onto the roller, and rotate together with the roller until being pressed against two sides of the isolation film 710. The separator 710 is continuously pulled by the pulling device 600, and when the positive plate 720 and the negative plate 730 are respectively attached to the two sides of the separator 710, the portion is led out between the two rollers by the pulling device 600, so that the next pair of positive and negative plates can be smoothly attached to the two sides of the separator 710. Because the action and the rotation of the roller body for adsorbing the materials and the action of the roller body for arranging the pole pieces on the isolating film 710 are carried out simultaneously, compared with the traditional method for taking and attaching the pole pieces by a mechanical arm, the action of grabbing the pole pieces by the mechanical arm for reciprocating movement is avoided, and the efficiency of attaching the positive pole piece and the negative pole piece of the battery cell is effectively improved. The first roller body 110 and the second roller body 120 may rotate continuously or intermittently.
According to the method for attaching the positive and negative electrode plates of the battery cell in the embodiment of the second aspect of the present invention, the step of rotating the first roller body 110 while sucking up the negative electrode plate 730 close to the first roller body and rotating the second roller body 120 while sucking up the positive electrode plate 720 close to the first roller body further comprises the following steps: the feeding device respectively feeds the negative plate 730 and the positive plate 720 to the positioning device 500; after the negative electrode plate 730 and the positive electrode plate 720 are conveyed to the positioning device 500, they are driven by the straightening body 511 to move obliquely and contact with the stoppers on the edge of the positioning device 500 to complete the positioning.
By the above attaching method, before the pole pieces are adsorbed by the roller body, the positioning device 500 may correct the positions of the pole pieces on the positioning device, and the first roller body 110 or the second roller body 120 adsorbs and transfers the pole pieces with corrected positions. The correction process is as follows: after the pole piece reaches the leveling platform 510, the pole piece is driven by the leveling body 511 to move in a diagonal direction, and the pole piece is positioned when the pole piece simultaneously contacts the first stop 520 and the second stop 530 at the edge of the positioning device 500. The correction procedure is arranged in the opposite pasting method, so that the feeding accuracy of the positive and negative pole pieces can be ensured, the positioning device 500 is arranged at the tail end of the feeding device, correction and feeding are carried out simultaneously, and the opposite pasting efficiency of the positive and negative pole pieces of the battery core is improved.
The following describes in detail the cell positive and negative electrode plate attaching apparatus and method according to an embodiment of the present invention with a specific embodiment with reference to fig. 1 to 6. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.
As shown in fig. 1 to 6, the apparatus for attaching positive and negative electrode plates to a battery cell includes a rack, a first roller 110, a second roller 120, an adsorption device, a conveyor belt 200, a driving device 300, a control device 400, a positioning device 500, and a traction device 600. The conveyor belt 200 is provided with two, and two conveyor belts 200 set up relatively along its direction of delivery, the end of every conveyor belt 200 is provided with positioner 500 respectively, positioner 500 is including rectifying platform 510, correction body 511, first dog 520 and second dog 530, rectify the end that platform 510 set up at the direction of delivery of conveyor belt 200, be equipped with a plurality of and conveyor belt 200 direction of delivery slope certain angle's correction body 511 on rectifying platform 510, first dog 520 and second dog 530 set up the edge at positioner 500. The first roller body 110 and the second roller body 120 are respectively arranged above the two positioning devices 500, the roller centers of the two positioning devices are located on the same horizontal plane, and the first roller body 110 and the second roller body 120 are provided with adsorption devices. The control device 400 and the driving device 300 are disposed at one side of the first roller body 110 and the second roller body 120, wherein the control device 400 is used for controlling the distance and pressure between the two rollers, and the driving device 300 is used for driving the first roller body 110 and the second roller body 120 to rotate. A drawing device 600 is disposed above the first roller body 110 and the second roller body 120 for drawing the separator 710 to pass between the two roller bodies continuously.
When the positive and negative pole pieces are attached to each other by the electrical core positive and negative pole piece attaching equipment, the positive pole piece 720 and the negative pole piece 730 are respectively arranged on the two feeding devices, and the isolating film 710 passes through the space between the first roller body 110 and the second roller body 120 and is connected with the traction device 600. Then, the battery cell positive and negative pole piece facing equipment is started, the whole equipment starts to operate, the positive pole piece 720 is conveyed to the positioning device 500 below the second roller body 120 by the conveying belt 200, the negative pole piece 730 is conveyed to the positioning device 500 below the first roller body, after the pole piece reaches the correction platform 510, the correction body 511 drives the pole piece to be close to the first stop block 520 and the second stop block 530, and when the pole piece is contacted with the first stop block 520 and the second stop block 530, the positioning is completed. The first roller body 110 and the second roller body 120 rotate, the first roller body 110 adsorbs the negative plate 730 which is positioned while rotating, the second roller body 120 adsorbs the positive plate 720 which is positioned while rotating, the positive plate 720 and the negative plate 730 can rotate together with the roller body after being adsorbed on the roller body, when the positive plate 720 and the negative plate 730 rotate between two rollers along with the roller body, the positive plate 720 and the negative plate 730 are pressed on two sides of the isolating film 710 to be attached, the part of the isolating film 710 attached with the positive and negative plates can continuously leave between the two roller bodies under the action of the traction device 600, the part of the isolating film 710 without the attached positive and negative plates enters between the two rollers, and preparation is made for the attachment of the positive and negative plates at the next time.
According to the equipment for oppositely pasting the positive and negative pole pieces of the battery cell, at least some effects as follows can be achieved through the arrangement: in the whole attaching process, the steps of feeding, correcting, adsorbing, attaching and removing are carried out synchronously, so that compared with the traditional method for taking and attaching the pole piece by a mechanical arm, the time for taking the pole piece by reciprocating movement of the mechanical arm is saved, and the positive and negative pole pieces can be attached to the two sides of the isolating film 710 efficiently and accurately.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides an electric core positive and negative pole piece is to pasting equipment which characterized in that includes:
a frame;
a first roller body (110), the first roller body (110) being disposed on the frame;
the second roller body (120) is arranged on the rack, and the roller centers of the first roller body (110) and the second roller body (120) are arranged on the same plane;
the feeding devices are arranged on the rack and are used for conveying positive plates (720) or negative plates (730) to be close to the first roller body (110) or the second roller body (120) respectively;
an adsorption device disposed on the first roller body (110) and the second roller body (120);
a drive device (300), the drive device (300) being configured to drive the first roller body (110) and the second roller body (120).
2. The battery cell positive and negative pole piece facing equipment according to claim 1, further comprising a control device (400), wherein the first roller body (110) and the second roller body (120) are movably arranged on the rack, and the control device (400) is configured to adjust a distance and a pressure between the first roller body (110) and the second roller body (120).
3. The battery cell positive and negative pole piece facing equipment according to claim 1, wherein the first roller body (110) and the second roller body (120) are the same in size.
4. The battery cell positive and negative pole piece facing equipment according to claim 1, wherein the first roller body (110) and the second roller body (120) are different in size.
5. The battery cell positive and negative pole piece facing equipment of claim 1, further comprising a positioning device (500), wherein the positioning device (500) is used for positioning the pole piece close to the first roller body (110) or the second roller body (120).
6. The battery cell positive and negative pole piece opposite-sticking equipment according to claim 5, wherein the positioning device (500) comprises a stop block and a correction platform (510), the correction platform (510) is provided with a plurality of correction bodies (511), the correction bodies (511) are inclined at a certain angle with the conveying direction of the feeding device, and the stop block is arranged at the edge of the positioning device (500).
7. The battery cell positive and negative pole piece opposite-sticking equipment according to claim 1, further comprising a traction device (600), wherein the traction device (600) is arranged on the rack, and the traction device (600) is used for leading the isolation film (710) out of the space between the first roller body (110) and the second roller body (120).
8. The equipment for oppositely attaching the positive and negative pole pieces of the battery cell of claim 1, wherein the feeding device is a conveyor belt (200).
9. A method for oppositely pasting positive and negative plates of an electric core is characterized by comprising the following steps:
conveying the positive plate (720) and the negative plate (730) through a feeding device to enable the negative plate (730) and the positive plate (720) to be close to the first roller body (110) and the second roller body (120) respectively;
the first roller body (110) sucks up the negative electrode sheet (730) close to the first roller body while rotating, and the second roller body (120) sucks up the positive electrode sheet (720) close to the second roller body while rotating;
the first roller body (110) and the second roller body (120) respectively drive the negative plate (730) and the positive plate (720) to rotate, the negative plate (730) and the positive plate (720) are respectively pressed and attached to two sides of the isolating film (710) between the two rollers, and the isolating film (710) attached with the plate group is led out between the two rollers by the traction device (600).
10. The method for attaching positive and negative pole pieces of a battery cell to each other according to claim 9, wherein the step of rotating the first roller body (110) while sucking up the negative pole piece (730) adjacent thereto and rotating the second roller body (120) while sucking up the positive pole piece (720) adjacent thereto further comprises the following steps:
the feeding device respectively feeds the negative plate (730) and the positive plate (720) to the positioning device (500);
after the negative electrode plate (730) and the positive electrode plate (720) are conveyed to the positioning device (500), the negative electrode plate and the positive electrode plate are driven by the correcting body (511) to move obliquely and contact with a stop block at the edge of the positioning device (500) to complete positioning.
CN202010676055.XA 2020-07-14 2020-07-14 Battery cell positive and negative plate opposite pasting equipment and method Pending CN111786003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010676055.XA CN111786003A (en) 2020-07-14 2020-07-14 Battery cell positive and negative plate opposite pasting equipment and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010676055.XA CN111786003A (en) 2020-07-14 2020-07-14 Battery cell positive and negative plate opposite pasting equipment and method

Publications (1)

Publication Number Publication Date
CN111786003A true CN111786003A (en) 2020-10-16

Family

ID=72768186

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010676055.XA Pending CN111786003A (en) 2020-07-14 2020-07-14 Battery cell positive and negative plate opposite pasting equipment and method

Country Status (1)

Country Link
CN (1) CN111786003A (en)

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