CN113363553A - Battery winding device - Google Patents
Battery winding device Download PDFInfo
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- CN113363553A CN113363553A CN202110636028.4A CN202110636028A CN113363553A CN 113363553 A CN113363553 A CN 113363553A CN 202110636028 A CN202110636028 A CN 202110636028A CN 113363553 A CN113363553 A CN 113363553A
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- pole piece
- module
- positive pole
- unwinding
- deviation rectifying
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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
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
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 a positive pole piece; the negative pole piece unreeling module is used for unreeling a negative pole piece; the upper diaphragm unwinding module is used for unwinding an upper diaphragm; the lower diaphragm unreeling module is used for unreeling a 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 performing electrostatic dust collection on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; and the glue discharging and 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 also 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 is in a leap development in the automobile industry. The power battery is roughly divided into: laminate battery, cylinder battery and square battery, a process very crucial in battery production process is coiling or lamination, and wherein the lamination is applied to the laminate battery more, and the coiling is applied to cylinder battery and square battery more.
The lamination process is carried out by using a lamination machine, wherein a positive plate, a negative plate and a diaphragm which are subjected to die cutting forming are laminated into a battery cell monomer, and a battery pack is finally formed through the procedures of welding, packaging, liquid injection, formation and the like.
For winding a square or cylindrical lithium battery cell, the winding method of the pole piece in the prior art is to start winding the pole piece (a positive pole piece, a diaphragm, and a negative pole piece are sequentially stacked) from one end to the other end until the winding of the battery cell is completed. However, the existing pole piece winding has the problems of easy influence on product precision, secondary pollution and the like, and the performance and safety of the battery are seriously influenced.
Disclosure of Invention
The invention aims to provide a battery winding device which can improve the performance and the safety of a battery.
The invention provides a battery winding device, comprising: the positive pole piece unreeling module is used for unreeling a positive pole piece; the negative pole piece unreeling module is used for unreeling a negative pole piece; the upper diaphragm unwinding module is used for unwinding an upper diaphragm; the lower diaphragm unwinding module is used for unwinding a lower diaphragm; the turret module is positioned between the anode pole piece unreeling module and the cathode pole piece unreeling module, is positioned between the upper diaphragm unreeling module and the lower diaphragm unreeling module, and is used for reeling the anode pole piece, the cathode 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 performing electrostatic dust collection on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; and the glue discharging and rolling module is used for spraying glue on 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 optional implementation manner, the positive pole piece unwinding module includes a positive pole piece unwinding mechanism, a positive pole piece deviation rectifying mechanism and a positive pole piece tension detection control mechanism, the positive pole piece unwinding mechanism is used for unwinding 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 deviation of the positive pole piece, and the positive pole piece tension detection control mechanism is used for detecting and controlling unwinding tension of the positive pole piece in real time.
In an optional embodiment, the positive pole piece deviation rectifying mechanism comprises a positive pole piece unwinding deviation rectifying mechanism, a positive pole piece feeding deviation rectifying mechanism and a positive pole piece winding front deviation rectifying mechanism, wherein the positive pole piece unwinding deviation rectifying mechanism is used for performing deviation rectifying adjustment on unwinding tension of a positive pole piece, the positive pole piece feeding deviation rectifying mechanism is used for adjusting the position of the positive pole piece before entering the turret module, and the positive pole piece winding front deviation rectifying mechanism is used for performing deviation rectifying adjustment on tension of the positive pole piece before entering the turret module.
In an optional implementation manner, the upper membrane unwinding module includes an upper membrane unwinding mechanism and an upper membrane unwinding deviation rectifying mechanism, the upper membrane unwinding mechanism is configured to unwind the upper membrane to provide the upper membrane for the turret module, and the upper membrane unwinding deviation rectifying mechanism is configured to rectify the upper membrane, so that the deviation rectifying precision and the tension of the upper membrane are within a set range.
In an optional embodiment, the turret module includes a turret body, a mounting member, a telescopic motor and a rotating motor, the mounting member has a mounting chamber and an opening communicating with the mounting chamber, the telescopic motor and the rotating motor are in transmission connection and are both located in the mounting chamber, one of the telescopic motor and the rotating motor is mounted on the mounting member, the other one of the telescopic motor and the rotating motor is in transmission connection with the turret body, the telescopic motor can drive the turret body to extend out of or retract back from the opening relative to the mounting chamber, the rotating motor can drive the turret body to rotate around an axis of the turret body, and the turret body is provided with a needle winding hole for winding the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm.
In an optional 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 to each other and are connected to the connecting column, the first mounting plate, the connecting column, and the second mounting plate enclose the mounting cavity, and the opening is provided on the first mounting plate.
In an optional embodiment, the dust collection module comprises a negative pressure cavity and an ultrasonic dust removal component, the negative pressure cavity is used for adsorbing impurities to be removed, and the ultrasonic dust removal component is installed in the negative pressure cavity and used for performing ultrasonic treatment on the impurities.
In an optional embodiment, the glue discharging and rolling module comprises a vacuum adsorption roller, a glue discharging roller and a pressing roller, the vacuum adsorption roller is in press fit with the glue discharging roller, the glue discharging roller is in press fit with the pressing roller, and the pressing roller is in press fit with the turret module.
In an alternative embodiment, the battery winding apparatus further includes two groups of separator cutters for cutting the upper separator and the lower separator, respectively.
In an optional embodiment, the battery winding device further includes a blanking mechanism, and the blanking mechanism is adjacent to the turret module and is configured to perform core pressing and blanking on the wound battery cell.
The battery winding device provided by the embodiment of the invention comprises: the positive pole piece unreeling module is used for unreeling a positive pole piece, the negative pole piece unreeling module is used for unreeling a negative pole piece, the upper diaphragm unreeling module is used for unreeling an upper diaphragm, the lower diaphragm unreeling module is used for unreeling a lower diaphragm, and the unreeled positive pole piece, negative pole piece, upper diaphragm and lower diaphragm are mutually reeled 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 static electricity. The glue discharging and rolling module is used for pressing the diaphragm and the winding core tightly and spraying glue on the diaphragm. In the embodiment of the invention, the battery cell can be wound, so that the problems in the lamination process are 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 to produce and manufacture.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
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 unwinding module in fig. 1;
fig. 3 is a schematic structural diagram of the negative electrode tab unwinding module in fig. 1;
fig. 4 is a schematic structural diagram of the upper membrane unwinding module in fig. 1;
fig. 5 is a schematic structural diagram of the lower membrane unwinding module in fig. 1;
fig. 6 is a schematic structural view of the turret module of fig. 1;
FIG. 7 is a schematic view of the dust extraction module of FIG. 1;
FIG. 8 is a schematic structural diagram of the glue discharging and rolling module shown in FIG. 1;
fig. 9 is a schematic structural view of the glue rolling module and the turret module in fig. 8.
Icon: 100-a battery winding device; 110-an anode pole piece unreeling module; 111-unwinding mechanism of positive pole piece; 112-positive pole piece deviation rectifying mechanism; 1121-positive pole piece unwinding deviation rectifying mechanism; 1122-positive pole piece feeding deviation rectifying mechanism; 1123-a positive plate winding front deviation rectifying mechanism; 113-positive pole piece tension detection control mechanism; 1131, a positive pole piece tension control component; 1132-positive pole piece tension detecting component; 120-negative pole piece unreeling module; 121-a negative pole piece unwinding mechanism; 122-negative pole piece deviation rectifying mechanism; 1221-cathode pole piece unreeling deviation correcting mechanism; 1222-negative pole piece feeding deviation rectifying mechanism; 1223-a negative pole piece roll front deviation correcting mechanism; 123-a negative pole piece tension detection control mechanism; 1231-negative pole piece tension control component; 1232-negative pole piece tension detecting means; 130-upper membrane unwinding module; 131-an upper membrane unwinding mechanism; 132-upper membrane unwinding deviation rectifying mechanism; 140-lower membrane unwinding module; 141-lower membrane unwinding mechanism; 142-lower membrane unwinding deviation rectifying mechanism; 150-a turret module; 151-turret body; 152-a mounting member; 1521-mounting a chamber; 1522-an opening; 1523-first mounting plate; 1524-a second mounting plate; 1525-connecting column; 153-telescoping motor; 154-a rotating electrical machine; 160-dust suction module; 161-negative pressure cavity; 162-an ultrasonic dust removal component; 170-glue discharging and rolling module; 171-vacuum suction roll; 172-rubber roller discharging; 173-pressure roller; 180-diaphragm cutter; 190-blanking mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of 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 present invention, 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements 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. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the 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 otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, a battery winding apparatus 100 according to an embodiment of the present invention is provided. The battery winding apparatus 100 may be used to perform a cell winding process, and may improve battery performance and safety.
In the embodiment of the present invention, the battery winding device 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 suction module 160 and a glue discharging and rolling module 170. The positive pole piece unreeling module 110 is used for unreeling a positive pole piece; the negative pole piece unreeling module 120 is used for unreeling a negative pole piece; the upper membrane unwinding module 130 is used for unwinding an upper membrane; the lower membrane unwinding module 140 is used for unwinding a lower membrane; the turret module 150 is located between the positive electrode sheet unwinding module 110 and the negative electrode sheet unwinding module 120, and located between the upper diaphragm unwinding module 130 and the lower diaphragm unwinding module 140, and is used for winding a positive electrode sheet, a negative electrode sheet, an upper diaphragm and a lower diaphragm; the dust collection module 160 is arranged at the inlet of the turret module 150 and is used for performing electrostatic dust collection on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm; the glue discharging and rolling module 170 is used for spraying glue 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.
It can be understood that, in the embodiment of the present invention, the anode plate unwinding module 110 is used for unwinding an anode plate, the cathode plate unwinding module 120 is used for unwinding a cathode plate, the upper membrane unwinding module 130 is used for unwinding an upper membrane, the lower membrane unwinding module 140 is used for unwinding a lower membrane, and the unwound anode plate, the unwound cathode plate, the unwound upper membrane and the unwound lower membrane are wound around each other through the turret module 150. The dust collection module 160 is used for performing 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 static electricity. The glue discharging and rolling module 170 is used for pressing the diaphragm and the winding core and spraying glue on the diaphragm. In the embodiment of the invention, the battery cell can be wound, so that the problems in the lamination process are avoided. Meanwhile, in the embodiment of the present invention, the dust collection module 160 and the glue discharging and rolling module 170 can realize electrostatic dust collection and make the positive electrode plate, the negative electrode plate, the upper diaphragm and the lower diaphragm roll tightly, 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 electrode tab unwinding module 110 and the negative electrode tab unwinding module 120 may be implemented by using similar structural forms; the upper and lower membrane unwinding modules 130 and 140 may be implemented using a similar structure. The positive pole piece unreeling module 110 and the negative pole piece unreeling module 120 are realized by using the same or similar structural forms, so that the manufacturing cost is lower, and meanwhile, the assembly and the maintenance are convenient; the upper and lower membrane unwinding modules 130 and 140 may be implemented using a fairchild or similar structure, which may reduce manufacturing costs and facilitate assembly and maintenance. The economic benefit can be further improved by the arrangement. Of course, it should be understood that the cathode pole piece unwinding module 110 and the anode pole piece unwinding module 120 may also adopt different structural forms, and the upper membrane unwinding module 130 and the lower membrane unwinding module 140 may also adopt different structural forms, which is not specifically required and limited in the embodiment of the present invention.
Referring to fig. 2, in an optional embodiment, the positive electrode sheet unwinding module 110 may include a positive electrode sheet unwinding mechanism 111, a positive electrode sheet deviation rectifying mechanism 112, and a positive electrode sheet tension detection control mechanism 113, where the positive electrode sheet unwinding mechanism 111 is configured to unwind a positive electrode sheet to provide the positive electrode sheet to the turret module 150, the positive electrode sheet deviation rectifying mechanism 112 is configured to rectify the positive electrode sheet, and the positive electrode sheet tension detection control mechanism 113 is configured to detect and control unwinding tension of the positive electrode sheet in real time.
Further, the positive pole piece deviation rectifying mechanism 112 may include a positive pole piece unwinding deviation rectifying mechanism 1121, a positive pole piece feeding deviation rectifying mechanism 1122, and a positive pole piece winding front deviation rectifying mechanism 1123, where the positive pole piece unwinding deviation rectifying mechanism 1121 is configured to perform deviation rectifying adjustment on the unwinding tension of the positive pole piece, the positive pole piece feeding deviation rectifying mechanism 1122 is configured to adjust the position of the positive pole piece before entering the turret module 150, and the positive pole piece winding front deviation rectifying mechanism 1123 is configured to perform deviation rectifying adjustment on the tension of the positive pole piece before entering the turret module 150.
Further, the positive pole piece tension detection control mechanism 113 is used for detecting and controlling the unwinding tension of the positive pole piece, and may include a positive pole piece tension detection component 1132 and a positive pole piece tension control component 1131. It should be noted that, in the embodiment of the present invention, the unwinding deviation correcting mechanism 1121 of the positive electrode tab can also adjust the unwinding tension of the positive electrode tab. In the winding process, the tension of the positive pole piece is in a changing process, and the tension of the positive pole piece is changed along with the change of the winding number. For the tension range of the positive electrode sheet, it may be set at 50-2500gf (gf, gram force, hardness unit, unit of magnitude of gravity to which a substance of 1g mass is subjected).
Referring to fig. 3, in the embodiment of the invention, for the negative pole piece unwinding module 120, a structural form similar to that of the positive pole piece unwinding module 110 may be utilized. In this embodiment, the negative electrode sheet unwinding module 120 may include a negative electrode sheet unwinding mechanism 121, a negative electrode sheet deviation rectifying mechanism 122, and a negative electrode sheet tension detection control mechanism 123, where the negative electrode sheet unwinding mechanism 121 is configured to unwind the negative electrode sheet to provide the negative electrode sheet for the turret module 150, the negative electrode sheet deviation rectifying mechanism 122 is configured to rectify the negative electrode sheet, and the negative electrode sheet tension detection control mechanism 123 is configured to detect and control unwinding tension of the negative electrode sheet in real time.
Further, the negative pole piece deviation rectifying mechanism 122 may include a negative pole piece unwinding deviation rectifying mechanism 1221, a negative pole piece feeding deviation rectifying mechanism 1222, and a negative pole piece winding forward deviation rectifying mechanism 1223, where the negative pole piece unwinding deviation rectifying mechanism 1221 is configured to perform deviation rectifying adjustment on the unwinding tension of the negative pole piece, the negative pole piece feeding deviation rectifying mechanism 1222 is configured to adjust the position of the negative pole piece before entering the turret module 150, and the negative pole piece winding forward deviation rectifying mechanism 1223 is configured to perform deviation rectifying adjustment on the tension of the negative pole piece before entering the turret module 150.
Further, the negative electrode tab tension detection control mechanism 123 is configured to detect and control the unwinding tension of the negative electrode tab, and may include a negative electrode tab tension detection component 1232 and a negative electrode tab tension control component 1231. It should be noted that, in the embodiment of the present invention, the cathode plate unwinding correction mechanism 1221 may also adjust the unwinding tension of the cathode plate. In the winding process, the tension of the negative pole piece is in the changing process, and the tension of the negative pole piece is changed along with the change of the winding number, so that the unwinding tension of the negative pole piece is detected in real time by the negative pole piece tension detecting component 1232, and the tension of the negative pole piece is adjusted to be within the set range by the negative pole piece tension control component 1231, and therefore the tension of the negative pole piece is always within the set range in the unwinding process of the negative pole piece. For the tension range of the negative electrode tab, it may be set at 50 to 2500 gf.
Referring to fig. 4, in an alternative embodiment, the upper membrane unwinding module 130 may include an upper membrane unwinding mechanism 131 and an upper membrane unwinding deviation rectifying mechanism 132, where the upper membrane unwinding mechanism 131 is used for unwinding an upper membrane to provide the upper membrane to the turret module 150, and the upper membrane unwinding deviation rectifying mechanism 132 is used for rectifying deviation of the upper membrane so that deviation rectifying accuracy and tension of the upper membrane are within a set range. The tension range may be set at 50-2000 gf.
Referring to fig. 5, in an alternative embodiment, the lower film unwinding module 140 may have a structure corresponding to the upper film unwinding module 130. The lower membrane unwinding module 140 may include a lower membrane unwinding mechanism 141 and a lower membrane unwinding deviation rectifying mechanism 142, where the lower membrane unwinding mechanism 141 is configured to unwind the lower membrane to provide the lower membrane to the turret module 150, and the lower membrane unwinding deviation rectifying mechanism 142 is configured to rectify the lower membrane, so that the deviation rectifying precision and the tension of the lower membrane are within a set range. The tension range may be set at 50-2000 gf.
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 has a mounting chamber 1521 and an opening 1522 communicating with the mounting chamber 1521, the telescopic motor 153 and the rotating motor 154 are in transmission connection and are both located in the mounting chamber 1521, one of the telescopic motor 153 and the rotating motor 154 is mounted on the mounting member 152, and the other is in transmission connection with the turret body 151, the telescopic motor 153 can drive the turret body 151 to extend out of or retract from the opening 1522 relative to the mounting chamber 1521, the rotating motor 154 can drive the turret body 151 to rotate around an axis of the turret body 151, and the turret body 151 is provided with a winding pin hole for winding a positive electrode piece, a negative electrode piece, an upper diaphragm, and a lower diaphragm.
It should be noted that, in the embodiment of the present invention, the telescopic motor 153 and the rotating motor 154 may respectively drive the turret body 151 to perform telescopic movement and rotating movement, one of the telescopic motor 153 and the rotating motor 154 is mounted on the mounting part 152, and the other is in transmission connection with the mounting part 152 and is connected with the turret body 151. For example, the telescopic motor 153 is mounted on the mounting part 152, the rotating motor 154 is in transmission connection with the telescopic motor 153, the telescopic motor 153 can drive the rotating motor 154 to rotate, and the movement of the turret body 151 is a combined movement of the telescopic motor 153 and the rotating motor 154; that is, the turret body 151 may be rotated and extended, so that the winding is more convenient, which is advantageous to improve the winding efficiency.
Further, the mounting component 152 may include a first mounting plate 1523, a second mounting plate 1524 and a connecting column 1525, the first mounting plate 1523 and the second mounting plate 1524 are opposite to each other and are connected to the connecting column 1525, the first mounting plate 1523, the connecting column 1525 and the second mounting plate 1524 enclose a mounting chamber 1521, the opening 1522 is disposed on the first mounting plate 1523, and the turret body 151 may extend from the opening 1522. In addition, a guide post may be further provided, the guide post is slidably connected to the mounting plate of the rotating motor 154, the mounting plate of the rotating motor 154 is drivingly connected to the telescopic motor 153, that is, the mounting plate may perform telescopic motion, 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 suction module 160 may include a negative pressure chamber 161 and an ultrasonic dust removing component 162, where the negative pressure chamber 161 is used for adsorbing impurities to be removed, and the ultrasonic dust removing component 162 is installed in the negative pressure chamber 161 for performing ultrasonic treatment on the impurities. In this embodiment, the dust collection module 160 employs an ultrasonic negative pressure type dust collection mechanism, which is a non-contact dry internal circulation type ultrasonic dust collection mechanism, and is suitable for dust collection without dead angles such as concave-convex surfaces, curved surfaces and the like, the rotating gas carries ultrasonic waves to eliminate interface effects, and the fluid carries plasma to eliminate electrostatic influences.
Referring to fig. 8 and 9, in an alternative embodiment, the glue discharging and rolling module 170 may include a vacuum suction roller 171, a glue discharging roller 172, and a pressing roller 173, wherein the vacuum suction roller 171 is in rolling fit with the glue discharging roller 172, the glue discharging roller 172 is in rolling fit with the pressing roller 173, and the pressing roller 173 is in rolling fit with the turret module 150. The vacuum adsorption roller 171 can carry out vacuum adsorption on the winding part, and the rubber outlet roller 172 can spray and bond the tail part, so that the adverse effect of sticking a rubber belt in the prior art can be effectively solved.
In an alternative embodiment, the battery winding device 100 may further include a separator cutter 180, and the separator cutter 180 includes two groups for cutting the upper and lower separators, respectively.
In an alternative embodiment, the battery winding apparatus 100 may further include a blanking mechanism 190, where the blanking mechanism 190 is adjacent to the turret module 150 and is used for performing core pressing and blanking on the wound battery cell.
Referring to fig. 1 to 9, a battery winding device 100 according to an embodiment of the present invention: the positive pole piece unreeling module 110 is used for unreeling a positive pole piece, the negative pole piece unreeling module 120 is used for unreeling a negative pole piece, the upper diaphragm unreeling module 130 is used for unreeling an upper diaphragm, the lower diaphragm unreeling module 140 is used for unreeling a lower diaphragm, and the unreeled positive pole piece, negative pole piece, upper diaphragm and lower diaphragm are mutually reeled by the turret module 150. The dust collection module 160 is used for performing 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 static electricity. The glue discharging and rolling module 170 is used for pressing the diaphragm and the winding core and spraying glue on the diaphragm. In the embodiment of the invention, the battery cell can be wound, so that the problems in the lamination process are avoided. Meanwhile, in the embodiment of the present invention, the dust collection module 160 and the glue discharging and rolling module 170 can realize electrostatic dust collection and make the positive electrode plate, the negative electrode plate, the upper diaphragm and the lower diaphragm roll tightly, 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 to produce and manufacture.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery winding device, comprising:
the positive pole piece unreeling module (110), wherein the positive pole piece unreeling module (110) is used for unreeling a positive pole piece;
the negative pole piece unreeling module (120) is used for unreeling a negative pole piece;
the upper membrane unreeling module (130), wherein the upper membrane unreeling module (130) is used for unreeling an upper membrane;
the lower membrane unwinding module (140), wherein the lower membrane unwinding module (140) is used for unwinding a lower membrane;
a turret module (150), wherein the turret module (150) is located between the positive pole piece unwinding module (110) and the negative pole piece unwinding module (120), and located between the upper membrane unwinding module (130) and the lower membrane unwinding module (140), and is used for winding the positive pole piece, the negative pole piece, the upper membrane and the lower membrane;
a dust suction module (160), wherein the dust suction module (160) is arranged at the inlet of the turret module (150) and is used for performing electrostatic dust removal on the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm;
and the glue discharging and rolling module (170) is used for spraying glue 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.
2. The battery winding device according to claim 1, wherein the positive pole piece unwinding module (110) comprises a positive pole piece unwinding mechanism (111), a positive pole piece deviation rectifying mechanism (112) and a positive pole piece tension detection control mechanism (113), the positive pole piece unwinding mechanism (111) is configured to unwind the positive pole piece to provide the positive pole piece for the turret module (150), the positive pole piece deviation rectifying mechanism (112) is configured to rectify the positive pole piece, and the positive pole piece tension detection control mechanism (113) is configured to detect and control unwinding tension of the positive pole piece in real time.
3. The battery winding device according to claim 2, wherein the positive pole piece deviation rectifying mechanism (112) comprises a positive pole piece unwinding deviation rectifying mechanism (1121), a positive pole piece feeding deviation rectifying mechanism (1122) and a positive pole piece winding front deviation rectifying mechanism (1123), the positive pole piece unwinding deviation rectifying mechanism (1121) is used for performing deviation rectifying adjustment on unwinding tension of the positive pole piece, the positive pole piece feeding 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 winding front deviation rectifying mechanism (1123) is used for performing deviation rectifying adjustment on tension of the positive pole piece before entering the turret module (150).
4. The battery winding device according to claim 1, wherein the upper membrane unwinding module (130) comprises an upper membrane unwinding mechanism (131) and an upper membrane unwinding deviation rectifying mechanism (132), the upper membrane unwinding mechanism (131) is configured to unwind the upper membrane to provide the upper membrane for the turret module (150), and the upper membrane unwinding deviation rectifying mechanism (132) is configured to rectify the upper membrane to enable deviation rectifying accuracy and tension of the upper membrane within a set range.
5. The battery winding device according to claim 1, wherein the turret module (150) comprises a turret body (151), a mounting member (152), a telescopic motor (153) and a rotating motor (154), the mounting member (152) has a mounting chamber (1521) and an opening (1522) communicating with the mounting chamber (1521), the telescopic motor (153) and the rotating motor (154) are in transmission connection and are both located in the mounting chamber (1521), one of the telescopic motor and the rotating motor is mounted on the mounting member (152), the other one of the telescopic motor and the rotating motor is in transmission connection with the turret body (151), the telescopic motor (153) can drive the turret body (151) to extend or retract from the opening (2) relative to the mounting chamber (1521), and the rotating motor (152154) can drive the turret body (151) to rotate around the axis of the turret body (151), the turret body (151) is provided with a winding pin hole for winding the positive pole piece, the negative pole piece, the upper diaphragm and the lower diaphragm.
6. The battery winding device according to claim 5, wherein the mounting member (152) comprises a first mounting plate (1523), a second mounting plate (1524) and a connecting column (1525), the first mounting plate (1523) and the second mounting plate (1524) are opposite and are connected with the connecting column (1525), the first mounting plate (1523), the connecting column (1525) and the second mounting plate (1524) enclose the mounting chamber (1521), and the opening (1522) is arranged on the first mounting plate (1523).
7. The battery winding device according to claim 1, wherein the dust suction module (160) comprises a negative pressure cavity (161) and an ultrasonic dust removal component (162), the negative pressure cavity (161) is used for adsorbing impurities to be removed, and the ultrasonic dust removal component (162) is installed in the negative pressure cavity (161) and is used for performing ultrasonic treatment on the impurities.
8. The battery winding device according to claim 1, wherein the glue discharging and rolling module (170) comprises a vacuum suction roller (171), a glue discharging roller (172) and a pressing roller (173), the vacuum suction roller (171) is in roll fit with the glue discharging roller (172), the glue discharging roller (172) is in roll fit with the pressing roller (173), and the pressing roller (173) is in roll fit with the turret module (150).
9. The battery winding device according to claim 1, wherein the battery winding device (100) further comprises a separator cutter (180), and the separator cutter (180) comprises two groups for cutting the upper separator and the lower separator, respectively.
10. The battery winding device according to claim 1, wherein the battery winding device (100) further comprises a blanking mechanism (190), and the blanking mechanism (190) is adjacent to the turret module (150) and is used for performing core pressing blanking on the wound battery cell.
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| CN202110636028.4A CN113363553B (en) | 2021-06-08 | 2021-06-08 | Battery winding device |
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| CN202110636028.4A CN113363553B (en) | 2021-06-08 | 2021-06-08 | Battery winding device |
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| CN113363553B CN113363553B (en) | 2023-07-14 |
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| CN113363553B (en) | 2023-07-14 |
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