CN113363553B - Battery winding device - Google Patents
Battery winding device Download PDFInfo
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- CN113363553B CN113363553B CN202110636028.4A CN202110636028A CN113363553B CN 113363553 B CN113363553 B CN 113363553B CN 202110636028 A CN202110636028 A CN 202110636028A CN 113363553 B CN113363553 B CN 113363553B
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- unreeling
- module
- pole piece
- diaphragm
- positive electrode
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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
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The embodiment of the invention provides a battery winding device, and relates to the field of battery manufacturing. The battery winding device includes: the positive pole piece unreeling module is used for unreeling the positive pole piece; the negative pole piece unreeling module is used for unreeling the negative pole piece; the upper diaphragm unreeling module is used for unreeling the upper diaphragm; the lower diaphragm unreeling module is used for unreeling the lower diaphragm; the turret module is used for winding the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; the dust collection module is used for carrying out electrostatic dust collection on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; and the glue outlet rolling module is used for spraying glue and rolling. The embodiment of the invention can improve the performance and the safety of the battery; compared with the lamination process, the embodiment of the invention can reduce waste and has better economic benefit.
Description
Technical Field
The invention relates to the field of battery manufacturing, in particular to a battery winding device.
Background
The power battery has the advantages of high specific energy density, long cycle life, good safety performance, flexible design and the like, so that the power battery can be developed in the automobile industry dramatically. The power battery is roughly classified into: the soft package battery, the cylindrical battery and the square battery are wound or laminated, wherein the laminated is applied to the soft package lithium battery, and the wound is applied to the cylindrical battery and the square battery.
The lamination process is carried out by using a lamination machine, and the positive plate, the negative plate and the diaphragm which are subjected to die cutting forming are laminated into a battery cell monomer, and then the battery pack is finally formed through the procedures of welding, packaging, liquid injection, formation and the like.
For square and cylindrical lithium battery winding cells, the pole piece winding mode in the prior art is to wind the pole piece (the positive pole piece, the diaphragm and the negative pole piece are sequentially overlapped) from one end to the other end until the cell winding is completed. However, the existing pole piece winding has the problems of easy influence on product precision, secondary pollution and the like, and seriously influences the performance and safety of the battery.
Disclosure of Invention
The invention aims to provide a battery winding device which can improve the performance and the safety of a battery.
The present invention provides a battery winding device, comprising: the positive pole piece unreeling module is used for unreeling the positive pole piece; the negative pole piece unreeling module is used for unreeling the negative pole piece; the upper diaphragm unreeling module is used for unreeling the upper diaphragm; the lower diaphragm unreeling module is used for unreeling the lower diaphragm; the turret module is positioned between the positive pole piece unreeling module and the negative pole piece unreeling module and between the upper diaphragm unreeling module and the lower diaphragm unreeling module and is used for winding the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; the dust collection module is arranged at the inlet of the turret module and is used for carrying out electrostatic dust collection on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; and the glue outlet rolling module is used for spraying glue to the upper diaphragm and the lower diaphragm and rolling the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm.
In an alternative embodiment, the positive pole piece unreeling module includes a positive pole piece unreeling mechanism, a positive pole piece deviation rectifying mechanism and a positive pole piece tension detection control mechanism, wherein the positive pole piece unreeling mechanism is used for unreeling the positive pole piece so as to provide the positive pole piece for the turret module, the positive pole piece deviation rectifying mechanism is used for rectifying the positive pole piece, and the positive pole piece tension detection control mechanism is used for detecting and controlling the unreeling tension of the positive pole piece in real time.
In an alternative embodiment, the positive pole piece deviation rectifying mechanism comprises a positive pole piece unreeling deviation rectifying mechanism, a positive pole piece unreeling deviation rectifying mechanism and a positive pole piece reeling front deviation rectifying mechanism, wherein the positive pole piece unreeling deviation rectifying mechanism is used for rectifying and adjusting unreeling tension of the positive pole piece, the positive pole piece unreeling deviation rectifying mechanism is used for adjusting the position of the positive pole piece before entering the turret module, and the positive pole piece reeling front deviation rectifying mechanism is used for rectifying and adjusting tension of the positive pole piece before entering the turret module.
In an alternative embodiment, the upper diaphragm unreeling module includes an upper diaphragm unreeling mechanism and an upper diaphragm unreeling correcting mechanism, the upper diaphragm unreeling mechanism is used for unreeling the upper diaphragm so as to provide the upper diaphragm for the turret module, and the upper diaphragm unreeling correcting mechanism is used for correcting the upper diaphragm so that the correction precision and the tension of the upper diaphragm are within a set range.
In an alternative embodiment, the turret module comprises a turret body, a mounting part, a telescopic motor and a rotating motor, wherein the mounting part is provided with a mounting cavity and an opening communicated with the mounting cavity, the telescopic motor and the rotating motor are in transmission connection and are both positioned in the mounting cavity, one of the telescopic motor and the rotating motor is mounted on the mounting part, the other telescopic motor is in transmission connection with the turret body, the telescopic motor can drive the turret body to extend or retract from the opening relative to the mounting cavity, the rotating motor can drive the turret body to rotate around the axis of the turret body, and the turret body is provided with a needle rolling hole site for winding the positive electrode plate, the negative electrode plate, the upper diaphragm and the lower diaphragm.
In an alternative embodiment, the mounting component includes a first mounting plate, a second mounting plate and a connecting column, the first mounting plate and the second mounting plate are opposite and are all connected with the connecting column, the first mounting plate, the connecting column and the second mounting plate enclose the mounting cavity, and the first mounting plate is provided with the opening.
In an alternative embodiment, the dust collection module comprises a negative pressure cavity and an ultrasonic dust collection component, wherein the negative pressure cavity is used for adsorbing impurities to be removed, and the ultrasonic dust collection component is installed in the negative pressure cavity and used for carrying out ultrasonic treatment on the impurities.
In an alternative embodiment, the glue outlet roller module comprises a vacuum adsorption roller, a glue outlet roller and a pressing roller, wherein the vacuum adsorption roller is in roller press fit with the glue outlet roller, the glue outlet roller is in roller press fit with the pressing roller, and the pressing roller is in roller press fit with the turret module.
In an alternative embodiment, the battery winding device further includes a separator cutter including two sets for cutting the upper separator and the lower separator, respectively.
In an alternative embodiment, the battery winding device further comprises a blanking mechanism, wherein the blanking mechanism is adjacent to the turret module and is used for blanking the rolled battery cells by pressing the battery cells.
The battery winding device provided by the embodiment of the invention comprises: the positive pole piece unreeling module is used for unreeling the positive pole piece, the negative pole piece unreeling module is used for unreeling the negative pole piece, the upper diaphragm unreeling module is used for unreeling the upper diaphragm, the lower diaphragm unreeling module is used for unreeling the lower diaphragm, and the unreeled positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm are mutually coiled through the turret module. The dust collection module is used for carrying out dust collection and electrostatic dust collection treatment on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm so as to remove dust and eliminate static electricity. The glue outlet rolling module is used for compressing the diaphragm and the winding core and spraying glue to the diaphragm. In the embodiment of the invention, the winding of the battery cell can be realized, so that the problem of lamination process is avoided. Meanwhile, in the embodiment of the invention, the dust collection module and the glue outlet rolling module can realize electrostatic dust collection and tightly roll the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm, thereby being beneficial to improving the performance and the safety of the battery. The embodiment of the invention can improve the performance and the safety of the battery, and the winding process has simple steps and is convenient for production and manufacture.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a battery winding device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the positive electrode sheet unreeling module in fig. 1;
fig. 3 is a schematic structural diagram of the negative pole piece unreeling module in fig. 1;
FIG. 4 is a schematic diagram of the upper membrane unwind module of FIG. 1;
FIG. 5 is a schematic diagram of the lower membrane unwind module of FIG. 1;
FIG. 6 is a schematic view of the turret module of FIG. 1;
FIG. 7 is a schematic view of the dust collection module of FIG. 1;
fig. 8 is a schematic structural diagram of the glue discharging roll module in fig. 1;
fig. 9 is a schematic structural diagram of the glue rolling module and turret module in fig. 8.
Icon: 100-battery winding device; 110-an anode piece unreeling module; 111-an anode piece unreeling mechanism; 112-a positive pole piece deviation correcting mechanism; 1121-an unreeling deviation correcting mechanism of the positive pole piece; 1122-positive pole piece feeding deviation correcting mechanism; 1123-correcting the deviation of the positive pole piece before winding; 113-a positive pole piece tension detection control mechanism; 1131-positive pole piece tension control component; 1132-positive pole piece tension detection component; 120-unreeling the negative pole piece; 121-an unwinding mechanism of the negative pole piece; 122-a negative pole piece deviation correcting mechanism; 1221-a negative pole piece unreeling deviation correcting mechanism; 1222-negative pole piece entering piece deviation correcting mechanism; 1223-a correcting mechanism before winding the negative pole piece; 123-a negative pole piece tension detection control mechanism; 1231-negative pole piece tension control component; 1232-a negative pole piece tension detecting component; 130-upper membrane unreeling module; 131-upper diaphragm unreeling mechanism; 132-an upper diaphragm unreeling deviation correcting mechanism; 140-lower diaphragm unreeling module; 141-lower diaphragm unreeling mechanism; 142-a lower diaphragm unreeling deviation correcting mechanism; 150-turret module; 151-turret body; 152-mounting a component; 1521-mounting a chamber; 1522-opening; 1523-a first mounting plate; 1524-a second mounting plate; 1525-connecting the column; 153-telescoping motor; 154-a rotating electric machine; 160-a dust collection module; 161-negative pressure cavity; 162-ultrasonic dust removal component; 170-a glue outlet rolling module; 171-vacuum suction rolls; 172-a glue outlet roller; 173-pinch rollers; 180-diaphragm cutter; 190-a blanking mechanism.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, a battery winding device 100 is provided in an embodiment of the invention. The battery winding device 100 may be used to implement a cell winding process and may improve battery performance and safety.
In an embodiment of the present invention, the battery winding apparatus 100 includes: the device comprises a positive pole piece unreeling module 110, a negative pole piece unreeling module 120, an upper diaphragm unreeling module 130, a lower diaphragm unreeling module 140, a turret module 150, a dust collection module 160 and a glue discharging roll pressing module 170. The positive pole piece unreeling module 110 is used for unreeling the positive pole piece; the negative pole piece unreeling module 120 is used for unreeling the negative pole piece; the upper diaphragm unreeling module 130 is used for unreeling the upper diaphragm; the lower diaphragm unreeling module 140 is used for unreeling the lower diaphragm; the turret module 150 is located between the positive pole piece unreeling module 110 and the negative pole piece unreeling module 120, and between the upper diaphragm unreeling module 130 and the lower diaphragm unreeling module 140, and is used for winding the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; the dust collection module 160 is arranged at the inlet of the turret module 150 and is used for carrying out electrostatic dust collection on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; the glue-out rolling module 170 is used for spraying glue to the upper diaphragm and the lower diaphragm, and rolling the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm.
It will be appreciated that in the embodiment of the present invention, the positive pole piece unwinding module 110 is used for unwinding a positive pole piece, the negative pole piece unwinding module 120 is used for unwinding a negative pole piece, the upper diaphragm unwinding module 130 is used for unwinding an upper diaphragm, the lower diaphragm unwinding module 140 is used for unwinding a lower diaphragm, and the unwound positive pole piece, negative pole piece, upper diaphragm and lower diaphragm are mutually wound by the turret module 150. The dust collection module 160 is used for collecting dust and removing static electricity on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm so as to remove dust and remove static electricity. The glue-out rolling module 170 is used for pressing the diaphragm and the winding core and spraying glue to the diaphragm. In the embodiment of the invention, the winding of the battery cell can be realized, so that the problem of lamination process is avoided. Meanwhile, in the embodiment of the invention, the dust collection module 160 and the glue outlet rolling module 170 can realize electrostatic dust collection and tightly roll the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm, thereby being beneficial to improving the performance and the safety of the battery.
Meanwhile, it should be noted that, in the embodiment of the present invention, the positive pole piece unreeling module 110 and the negative pole piece unreeling module 120 may be implemented by using similar structural forms; the upper diaphragm unwind module 130 and the lower diaphragm unwind module 140 may be implemented using similar configurations. The positive pole piece unreeling module 110 and the negative pole piece unreeling module 120 are realized by the same or similar structural forms, so that the manufacturing cost is lower, and meanwhile, the assembly and the maintenance are convenient; the upper diaphragm unreeling module 130 and the lower diaphragm unreeling module 140 are implemented by using a fairy child or similar structural form, which can make the manufacturing cost lower, and simultaneously facilitate the assembly and maintenance. The arrangement can further improve economic benefit. Of course, it should be understood that the positive pole piece unreeling module 110 and the negative pole piece unreeling module 120 may also take different structural forms, and the upper diaphragm unreeling module 130 and the lower diaphragm unreeling module 140 may also take different structural forms, which are not specifically required and limited in the embodiment of the present invention.
Referring to fig. 2, in an alternative embodiment, the positive pole piece unreeling module 110 may include a positive pole piece unreeling mechanism 111, a positive pole piece deviation correcting mechanism 112, and a positive pole piece tension detecting control mechanism 113, where the positive pole piece unreeling mechanism 111 is used for unreeling the positive pole piece, so as to provide the positive pole piece to the turret module 150, the positive pole piece deviation correcting mechanism 112 is used for correcting the positive pole piece, and the positive pole piece tension detecting control mechanism 113 is used for detecting and controlling the unreeling tension of the positive pole piece in real time.
Further, the positive pole piece deviation rectifying mechanism 112 may include a positive pole piece unreeling deviation rectifying mechanism 1121, a positive pole piece unreeling deviation rectifying mechanism 1122, and a positive pole piece reeling front deviation rectifying mechanism 1123, where the positive pole piece unreeling deviation rectifying mechanism 1121 is used for rectifying and adjusting the unreeling tension of the positive pole piece, the positive pole piece reeling deviation rectifying mechanism 1122 is used for adjusting the position of the positive pole piece before entering the turret module 150, and the positive pole piece reeling front deviation rectifying mechanism 1123 is used for rectifying and adjusting the tension of the positive pole piece before entering the turret module 150.
Further, the positive electrode sheet tension detection control mechanism 113 for detecting and controlling the unwinding tension of the positive electrode sheet may include a positive electrode sheet tension detecting section 1132 and a positive electrode sheet tension controlling section 1131. In the embodiment of the present invention, the unwinding correction mechanism 1121 may also adjust the unwinding tension of the positive electrode sheet. In the winding process, the tension of the positive electrode plate is in a change process, and along with the change of the winding fold number, the tension of the positive electrode plate is also changed. The tension range of the positive electrode sheet may be set to 50 to 2500gf (gf, gram force, hardness unit, which means a unit of the magnitude of gravity to which a substance of 1g mass is subjected).
Referring to fig. 3, in an embodiment of the present invention, a similar structure to the positive pole piece unwinding module 110 may be used for the negative pole piece unwinding module 120. In this embodiment, the negative pole piece unreeling module 120 may include a negative pole piece unreeling mechanism 121, a negative pole piece deviation correcting mechanism 122 and a negative pole piece tension detecting control mechanism 123, where the negative pole piece unreeling mechanism 121 is used for unreeling a negative pole piece to provide the negative pole piece to the turret module 150, the negative pole piece deviation correcting mechanism 122 is used for correcting the negative pole piece, and the negative pole piece tension detecting control mechanism 123 is used for detecting and controlling the unreeling tension of the negative pole piece in real time.
Further, the negative pole piece deviation rectifying mechanism 122 may include a negative pole piece unreeling deviation rectifying mechanism 1221, a negative pole piece reeling-in deviation rectifying mechanism 1222, and a negative pole piece reeling-in deviation rectifying mechanism 1223, where the negative pole piece unreeling deviation rectifying mechanism 1221 is used for rectifying and adjusting unreeling tension of the negative pole piece, the negative pole piece reeling-in deviation rectifying mechanism 1222 is used for adjusting a position of the negative pole piece before entering the turret module 150, and the negative pole piece reeling-in deviation rectifying mechanism 1223 is used for rectifying and adjusting tension of the negative pole piece before entering the turret module 150.
Further, for the negative electrode tab tension detection control mechanism 123 for detecting and controlling the unreeling tension of the negative electrode tab, a negative electrode tab tension detection part 1232 and a negative electrode tab tension control part 1231 may be included. It should be noted that, in the embodiment of the present invention, the unreeling deviation correcting mechanism 1221 of the negative electrode piece may also adjust the unreeling tension of the negative electrode piece. In the winding process, the tension of the negative pole piece is in a change process, and along with the change of the winding fold number, the tension of the negative pole piece is also changed. For the tension range of the negative electrode tab, it may be set at 50-2500gf.
Referring to fig. 4, in an alternative embodiment, the upper diaphragm unreeling module 130 may include an upper diaphragm unreeling mechanism 131 and an upper diaphragm unreeling deviation rectifying mechanism 132, wherein the upper diaphragm unreeling mechanism 131 is used for unreeling the upper diaphragm to provide the upper diaphragm to the turret module 150, and the upper diaphragm unreeling deviation rectifying mechanism 132 is used for rectifying the upper diaphragm so that the deviation rectifying accuracy and the tension of the upper diaphragm are within a set range. The tension range may be set at 50-2000gf.
Referring to fig. 5, in an alternative embodiment, a structure corresponding to the upper membrane unwind module 130 may be employed for the lower membrane unwind module 140. The lower diaphragm unreeling module 140 may include a lower diaphragm unreeling mechanism 141 and a lower diaphragm unreeling rectifying mechanism 142, the lower diaphragm unreeling mechanism 141 being used for unreeling the lower diaphragm to provide the lower diaphragm to the turret module 150, the lower diaphragm unreeling rectifying mechanism 142 being used for rectifying the lower diaphragm so that the rectifying accuracy and the tension of the lower diaphragm are within a set range. The tension range may be set at 50-2000gf.
Referring to fig. 6, in an alternative embodiment, the turret module 150 may include a turret body 151, a mounting member 152, a telescopic motor 153 and a rotating motor 154, the mounting member 152 having a mounting chamber 1521 and an opening 1522 communicating with the mounting chamber 1521, the telescopic motor 153 and the rotating motor 154 being in driving connection and both being located in the mounting chamber 1521, one of which is mounted on the mounting member 152, the other of which is in driving connection with the turret body 151, the telescopic motor 153 being capable of driving the turret body 151 to extend or retract from the opening 1522 relative to the mounting chamber 1521, the rotating motor 154 being capable of driving the turret body 151 to rotate about an axis of the turret body 151, the turret body 151 being provided with winding pin holes for winding the positive electrode sheet, the negative electrode sheet, the upper diaphragm and the lower diaphragm.
It should be noted that, in the embodiment of the present invention, the telescopic motor 153 and the rotary motor 154 may drive the turret body 151 to perform telescopic motion and rotary motion, respectively, one of the telescopic motor 153 and the rotary motor 154 is mounted on the mounting member 152, and the other is in transmission connection with the mounting member and connected with the turret body 151. For example, a telescopic motor 153 is mounted on the mounting component 152, the rotary motor 154 is in transmission connection with the telescopic motor 153, the telescopic motor 153 can drive the rotary motor 154 to rotate, and the movement of the turret body 151 is the compound movement of the telescopic motor 153 and the rotary motor 154; that is, the turret body 151 is rotatable and retractable, so that winding is more convenient, and winding efficiency is improved.
Further, the mounting component 152 may include a first mounting plate 1523, a second mounting plate 1524, and a connection post 1525, where the first mounting plate 1523 and the second mounting plate 1524 are opposite and are connected to the connection post 1525, the first mounting plate 1523, the connection post 1525, and the second mounting plate 1524 enclose a mounting chamber 1521, the first mounting plate 1523 is provided with the opening 1522, and the turret body 151 may extend from the opening 1522. In addition, a guide post may be further provided, and the guide post is slidably connected with the mounting plate of the rotating motor 154, and the mounting plate of the rotating motor 154 is in transmission connection with the telescopic motor 153, that is, the mounting plate may perform telescopic movement, and the guide post may limit the telescopic direction of the mounting plate, thereby limiting the telescopic path of the turret body 151.
Referring to fig. 7, in an alternative embodiment, the dust collection module 160 may include a negative pressure chamber 161 and an ultrasonic dust removal part 162, the negative pressure chamber 161 is used for adsorbing impurities to be removed, and the ultrasonic dust removal part 162 is installed in the negative pressure chamber 161 for performing ultrasonic treatment on the impurities. In this embodiment, the dust collection module 160 adopts an ultrasonic negative pressure type dust collection mechanism, and the mechanism is non-contact dry type internal circulation ultrasonic dust collection, and can be suitable for dust collection without dead angles such as concave-convex surfaces, curved surfaces and the like, the rotating gas can eliminate interface effects by self-contained ultrasonic waves, and the fluid can eliminate electrostatic influence by self-contained plasmas.
Referring to fig. 8 and 9, in an alternative embodiment, the glue-out roller module 170 may include a vacuum suction roller 171, a glue-out roller 172, and a pinch roller 173, wherein the vacuum suction roller 171 is in rolling fit with the glue-out roller 172, the glue-out roller 172 is in rolling fit with the pinch roller 173, and the pinch roller 173 is in rolling fit with the turret module 150. The vacuum adsorption roller 171 can vacuum adsorb the winding part, and the glue outlet roller 172 can spray glue the tail part, so that the adverse effect of sticking the adhesive tape in the prior art can be effectively solved.
In an alternative embodiment, the battery winding device 100 may further include a separator cutter 180, the separator cutter 180 including two sets for cutting the upper and lower separators, respectively.
In an alternative embodiment, the battery winding apparatus 100 may further include a discharging mechanism 190, and the discharging mechanism 190 is adjacent to the turret module 150 for core-pressing and discharging the wound battery cells.
Referring to fig. 1 to 9, a battery winding device 100 according to an embodiment of the invention is shown: the positive pole piece unreeling module 110 is used for unreeling the positive pole piece, the negative pole piece unreeling module 120 is used for unreeling the negative pole piece, the upper diaphragm unreeling module 130 is used for unreeling the upper diaphragm, the lower diaphragm unreeling module 140 is used for unreeling the lower diaphragm, and the unreeled positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm are mutually coiled through the turret module 150. The dust collection module 160 is used for collecting dust and removing static electricity on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm so as to remove dust and remove static electricity. The glue-out rolling module 170 is used for pressing the diaphragm and the winding core and spraying glue to the diaphragm. In the embodiment of the invention, the winding of the battery cell can be realized, so that the problem of lamination process is avoided. Meanwhile, in the embodiment of the invention, the dust collection module 160 and the glue outlet rolling module 170 can realize electrostatic dust collection and tightly roll the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm, thereby being beneficial to improving the performance and the safety of the battery. The embodiment of the invention can improve the performance and the safety of the battery, and the winding process has simple steps and is convenient for production and manufacture.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A battery winding device, characterized by comprising:
the positive pole piece unreeling module (110), wherein the positive pole piece unreeling module (110) is used for unreeling the positive pole piece;
the negative pole piece unreeling module (120), wherein the negative pole piece unreeling module (120) is used for unreeling the negative pole piece;
an upper diaphragm unreeling module (130), the upper diaphragm unreeling module (130) being used for unreeling the upper diaphragm;
a lower diaphragm unreeling module (140), the lower diaphragm unreeling module (140) being used for unreeling the lower diaphragm;
the turret module (150) is positioned between the positive pole piece unreeling module (110) and the negative pole piece unreeling module (120) and between the upper diaphragm unreeling module (130) and the lower diaphragm unreeling module (140) and is used for winding the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm;
the dust collection module (160) is arranged at the inlet of the turret module (150) and is used for carrying out electrostatic dust collection on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm;
the dust collection module (160) comprises a negative pressure cavity (161) and an ultrasonic dust collection component (162), wherein the negative pressure cavity (161) is used for adsorbing impurities to be removed, and the ultrasonic dust collection component (162) is arranged in the negative pressure cavity (161) and is used for carrying out ultrasonic treatment on the impurities;
glue outlet rolling module (170), glue outlet rolling module (170) is used for carrying out glue spraying treatment on the upper diaphragm and the lower diaphragm, and is used for rolling the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm, glue outlet rolling module (170) comprises a vacuum adsorption roller (171), a glue outlet roller (172) and a pressing roller (173), vacuum adsorption roller (171) is in rolling fit with glue outlet roller (172), glue outlet roller (172) is in rolling fit with pressing roller (173), and pressing roller (173) is in rolling fit with turret module (150);
the rotary electric machine (154) can drive the rotary electric machine (151) to rotate around the axis of the rotary electric machine (1521), and the rotary electric machine (151) is provided with a winding needle hole site for winding the positive electrode, the negative electrode, the upper diaphragm and the lower diaphragm.
2. The battery winding device according to claim 1, wherein the positive electrode sheet unreeling module (110) comprises a positive electrode sheet unreeling mechanism (111), a positive electrode sheet deviation correcting mechanism (112) and a positive electrode sheet tension detection control mechanism (113), the positive electrode sheet unreeling mechanism (111) is used for unreeling the positive electrode sheet so as to provide the positive electrode sheet to the turret module (150), the positive electrode sheet deviation correcting mechanism (112) is used for correcting the positive electrode sheet, and the positive electrode sheet tension detection control mechanism (113) is used for detecting and controlling the unreeling tension of the positive electrode sheet in real time.
3. The battery winding device according to claim 2, wherein the positive electrode sheet deviation rectifying mechanism (112) comprises a positive electrode sheet unreeling deviation rectifying mechanism (1121), a positive electrode sheet unreeling deviation rectifying mechanism (1122) and a positive electrode sheet reeling front deviation rectifying mechanism (1123), the positive electrode sheet unreeling deviation rectifying mechanism (1121) is used for rectifying and adjusting unreeling tension of the positive electrode sheet, the positive electrode sheet unreeling deviation rectifying mechanism (1122) is used for adjusting the position of the positive electrode sheet before entering the turret module (150), and the positive electrode sheet reeling front deviation rectifying mechanism (1123) is used for rectifying and adjusting tension of the positive electrode sheet before entering the turret module (150).
4. The battery winding device according to claim 1, wherein the upper diaphragm unreeling module (130) comprises an upper diaphragm unreeling mechanism (131) and an upper diaphragm unreeling correcting mechanism (132), the upper diaphragm unreeling mechanism (131) is used for unreeling the upper diaphragm so as to provide the upper diaphragm to the turret module (150), and the upper diaphragm unreeling correcting mechanism (132) is used for correcting the upper diaphragm so that the correction accuracy and tension of the upper diaphragm are within a set range.
5. The battery winding device according to claim 1, wherein the mounting member (152) includes a first mounting plate (1523), a second mounting plate (1524) and a connecting post (1525), the first mounting plate (1523) and the second mounting plate (1524) are opposite and are each connected to the connecting post (1525), the first mounting plate (1523), the connecting post (1525) and the second mounting plate (1524) enclose the mounting chamber (1521), and the opening (1522) is provided in the first mounting plate (1523).
6. The battery winding device according to claim 1, wherein the battery winding device (100) further comprises a diaphragm cutter (180), the diaphragm cutter (180) comprising two groups for cutting the upper and lower diaphragms, respectively.
7. The battery winding device according to claim 1, wherein the battery winding device (100) further comprises a blanking mechanism (190), the blanking mechanism (190) being adjacent to the turret module (150) for core-pressing blanking of the wound battery cells.
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| CN115149208B (en) * | 2022-08-03 | 2023-06-02 | 山东华太新能源电池有限公司 | Automatic pipe rolling equipment for positive diaphragm pipe |
| WO2024028726A1 (en) * | 2022-08-05 | 2024-02-08 | G.D S.P.A. | Apparatus for making a coil |
| CN116475998B (en) * | 2023-06-21 | 2023-09-05 | 中创新航科技集团股份有限公司 | Battery cell disassembling device and disassembling method |
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