CN114079088B - Lamination system and lamination method of battery cell - Google Patents
Lamination system and lamination method of battery cell Download PDFInfo
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- CN114079088B CN114079088B CN202111387908.9A CN202111387908A CN114079088B CN 114079088 B CN114079088 B CN 114079088B CN 202111387908 A CN202111387908 A CN 202111387908A CN 114079088 B CN114079088 B CN 114079088B
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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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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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
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or 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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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Materials Engineering (AREA)
Abstract
The invention relates to the technical field of batteries, in particular to a lamination system and a lamination method of an electric core. The lamination system of the battery cell comprises a disk body device and m groups of lamination parts, wherein each group of lamination part comprises an anode sheet lamination part, an anode diaphragm sheet lamination part, a cathode sheet lamination part and a cathode diaphragm sheet lamination part, the disk body device comprises a disk body which is horizontally arranged, the disk body comprises an upper surface, a lower surface and a side surface, an annular track is arranged around the side surface of the disk body in a circle, and 4n lamination sites are arranged on the annular track, wherein m=n; in each group of lamination parts, the positive plate lamination part, the positive diaphragm lamination part, the negative plate lamination part and the positive diaphragm lamination part are sequentially arranged around the annular track in a surrounding manner, and correspond to one lamination site respectively; the circular track is provided with a material sheet receiving device capable of circularly moving. The lamination system can simultaneously laminate a plurality of stations, can simultaneously stack a plurality of lamination stations and has higher efficiency.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a lamination system and a lamination method of an electric core.
Background
The square lamination technology is one of the most advanced lithium ion battery manufacturing technologies at present, wherein the lamination speed directly determines the whole line production capacity and the manufacturing cost of the battery cell. Currently, a z-type lamination technology is mostly adopted, and the lamination method has the following defects: the speed is slower; the number of the devices is large, and the occupied area is large; the acquisition cost is high; the later maintenance cost is high; the energy consumption is large. In addition, the existing lamination technology cannot thoroughly avoid the problem of membrane wrinkling.
In view of this, the present invention has been made.
Disclosure of Invention
The invention relates to a lamination system of an electric core, which comprises a disc body device and m groups of lamination parts, wherein each group of lamination parts comprises: the positive diaphragm lamination part is used for providing positive plates and carrying out positive plate lamination, the positive diaphragm lamination part is used for providing positive diaphragms and carrying out positive diaphragm lamination, the negative plate lamination part is used for providing negative plates and carrying out negative plate lamination, and the negative diaphragm lamination part is used for providing negative diaphragms and carrying out negative diaphragm lamination, wherein m is more than or equal to 1 and is an integer;
the disc body equipment comprises a disc body which is horizontally arranged, wherein the disc body comprises an upper surface, a lower surface and a side surface, an annular track is arranged around the side surface of the disc body in a circle, 4n lamination sites are arranged on the annular track, n is more than or equal to 1 and is an integer, and m=n;
in each group of lamination parts, the positive plate lamination part, the positive diaphragm lamination part, the negative plate lamination part and the negative diaphragm lamination part are sequentially arranged around the annular track in a surrounding manner in sequence, and any one of the positive plate lamination part, the positive diaphragm lamination part, the negative plate lamination part and the negative diaphragm lamination part corresponds to one lamination site respectively;
the circular track is provided with a plurality of tablet receiving devices which are used for placing tablets and can move circularly, and the number of the tablet receiving devices is the same as that of the lamination sites.
The lamination system can simultaneously laminate a plurality of stations, can simultaneously stack a plurality of lamination stations and has higher efficiency; and the arrangement of the devices enables the space utilization of the equipment to be higher.
According to another aspect, the invention also relates to a method for implementing lamination of the lamination system of the battery cell, comprising the following steps:
and after the stacking of the first material sheet is completed, the material sheet supporting devices continue to move, when the material sheet supporting devices move to the next lamination position respectively, the stacking operation of the material sheets is repeated until each material sheet supporting device completes the manufacture of the battery pole group, and the stacking mode of the material sheets is adopted on each material sheet supporting device.
The method can realize simultaneous lamination through each station, and simultaneously superimpose a plurality of lamination sheets, thereby greatly improving the lamination efficiency.
Compared with the prior art, the invention has the beneficial effects that:
(1) The lamination system can simultaneously laminate a plurality of stations, can simultaneously stack a plurality of lamination stations and has higher efficiency; and the arrangement of the devices enables the space utilization of the equipment to be higher.
(2) The method can realize simultaneous lamination through each station, and simultaneously superimpose a plurality of lamination sheets, thereby greatly improving the lamination efficiency; meanwhile, the problem of folds of the diaphragm can be effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a lamination system of the battery cell of the present invention;
FIG. 2 is a schematic representation of lamination sites for lamination on an endless track in accordance with the present invention;
FIG. 3 is a flow chart of the cell lamination method of the present invention;
fig. 4 is a schematic view of a battery pole group obtained by the lamination method of the present invention.
Reference numerals:
1-tray, 100-endless track, 101-first sheet receiving means, 102-second sheet receiving means, 103-third sheet receiving means, 104-fourth sheet receiving means, 105-fifth sheet receiving means, 106-sixth sheet receiving means, 107-seventh sheet receiving means, 108-eighth sheet receiving means, 1001-first lamination site, 1002-second lamination site, 1003-third lamination site, 1004-fourth lamination site, 1005-fifth lamination site, 1006-sixth lamination site, 1007-seventh lamination site, 1008-eighth lamination site;
2-first positive plate lamination part, 201-first positive manipulator, 202-first positive roll cutting device, 203-first positive roll feeding device, 3-first positive diaphragm lamination part, 301-first positive diaphragm manipulator, 302-first positive diaphragm roll cutting device, 303-first positive diaphragm roll feeding device, 4-first negative plate lamination part, 401-first negative manipulator, 402-first negative roll cutting device, 403-first negative roll feeding device, 5-first negative diaphragm lamination part, 501-first negative diaphragm manipulator, 502-first negative diaphragm roll cutting device, 503-first negative diaphragm roll feeding device;
6-second positive plate lamination part, 601-second positive manipulator, 602-second positive roll cutting device, 603-second positive roll feeding device, 7-second positive diaphragm lamination part, 701-second positive diaphragm manipulator, 702-second positive diaphragm roll cutting device, 703-second positive diaphragm roll feeding device, 8-second negative plate lamination part, 801-second negative manipulator, 802-second negative roll cutting device, 803-second negative roll feeding device, 9-second negative diaphragm lamination part, 901-second negative diaphragm manipulator, 902-second negative diaphragm roll cutting device, 903-second negative diaphragm roll feeding device.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
According to one aspect, the invention relates to a lamination system of a battery cell, comprising a disc device and m groups of lamination sections, each group of lamination sections comprising: the positive diaphragm lamination part is used for providing positive plates and carrying out positive plate lamination, the positive diaphragm lamination part is used for providing positive diaphragms and carrying out positive diaphragm lamination, the negative plate lamination part is used for providing negative plates and carrying out negative plate lamination, and the negative diaphragm lamination part is used for providing negative diaphragms and carrying out negative diaphragm lamination, wherein m is more than or equal to 1 and is an integer;
the disc body equipment comprises a disc body which is horizontally arranged, wherein the disc body comprises an upper surface, a lower surface and a side surface, an annular track is arranged around the side surface of the disc body in a circle, 4n lamination sites are arranged on the annular track, n is more than or equal to 1 and is an integer, and m=n;
in each group of lamination parts, the positive plate lamination part, the positive diaphragm lamination part, the negative plate lamination part and the negative diaphragm lamination part are sequentially arranged around the annular track in a surrounding manner in sequence, and any one of the positive plate lamination part, the positive diaphragm lamination part, the negative plate lamination part and the negative diaphragm lamination part corresponds to one lamination site respectively;
the circular track is provided with a plurality of tablet receiving devices which are used for placing tablets and can move circularly, and the number of the tablet receiving devices is the same as that of the lamination sites.
The lamination system can simultaneously laminate a plurality of stations, can simultaneously stack a plurality of lamination stations and has higher efficiency; and the arrangement of the devices enables the space utilization of the equipment to be higher.
The disk device of the invention can be a magnetic suspension turntable.
The material sheet receiving device and the annular track can be connected in a sliding way or a rolling way. The movement is controlled by electrical means.
Preferably, the positive electrode sheet lamination portion includes: the device comprises a positive electrode roll feeding device for providing a positive electrode material belt, a positive electrode roll cutting device for cutting the positive electrode material belt, and a positive electrode manipulator for stacking positive electrode plates. According to the invention, the positive plate is provided for the material sheet receiving device through the cooperation of the positive roll feeding device, the positive roll cutting device and the positive manipulator.
The positive electrode diaphragm lamination portion includes: the device comprises a positive electrode diaphragm roll feeding device for providing a positive electrode diaphragm material belt, a positive electrode diaphragm roll cutting device for cutting the positive electrode diaphragm material belt, and a positive electrode diaphragm manipulator for stacking positive electrode diaphragm sheets. According to the invention, the positive diaphragm sheet is provided for the sheet receiving device through the cooperation of the positive diaphragm roll feeding device, the positive diaphragm roll cutting device and the positive diaphragm mechanical arm.
The negative electrode sheet lamination portion includes: the negative electrode roll cutting device is used for providing a negative electrode roll feeding device of a negative electrode material belt, a negative electrode roll cutting device used for cutting the negative electrode material belt and a negative electrode mechanical arm used for stacking negative electrode pieces. According to the invention, the negative electrode roll feeding device, the negative electrode roll cutting device and the negative electrode mechanical arm are matched to provide the negative electrode piece for the material piece bearing device.
The negative electrode diaphragm lamination portion includes: the negative electrode diaphragm mechanical arm is used for stacking negative electrode diaphragm sheets. According to the invention, the negative diaphragm sheet is provided for the sheet receiving device through the cooperation of the negative diaphragm roll feeding device, the negative diaphragm roll cutting device and the negative diaphragm mechanical arm.
Preferably, each of the material sheet receiving devices is provided with a tablet pressing assembly for fixing the material sheets. The invention fixes the lamination placed on the material sheet bearing device through the pressing piece component.
Preferably, the lamination sites are uniformly distributed on the annular track.
In one embodiment, lamination sites are uniformly distributed on the annular track, i.e. the distance between each adjacent lamination site is equal.
Preferably, in each group of lamination parts, a positive electrode material belt defect detection device and a positive electrode material belt deviation correction device are arranged between the positive electrode roll feeding device and the positive electrode roll cutting device.
And a positive diaphragm defect detection device and a positive diaphragm deviation correction device are arranged between the positive diaphragm coil feeding device and the positive diaphragm coil cutting device.
And a negative electrode material belt defect detection device and a negative electrode material belt deviation correction device are arranged between the negative electrode roll feeding device and the negative electrode roll cutting device.
And a negative electrode diaphragm defect detection device and a negative electrode diaphragm deviation correction device are arranged between the negative electrode diaphragm winding feeding device and the negative electrode diaphragm winding cutting device.
The defect detection device and the deviation correction device are arranged to detect the quality and the position of the positive electrode material belt, the positive electrode diaphragm material belt, the negative electrode material belt and the negative electrode diaphragm material belt, so that high-quality material sheets are ensured to be obtained, and the quality of the obtained battery electrode group is further ensured.
Preferably, m is 2, 3 or 4.
Preferably, the annular track is in an elliptical configuration; when m=2, a first end point of the elliptical long axis is provided with a first lamination site, a second end point of the elliptical long axis is provided with a fifth lamination site, a second lamination site, a third lamination site and a fourth lamination site are sequentially arranged between the first lamination site and the fifth lamination site respectively according to the anticlockwise direction, and a sixth lamination site, a seventh lamination site and an eighth lamination site are sequentially arranged between the fifth lamination site and the first lamination site.
Preferably, the side surface of the tray body is further provided with: the first track is used for allowing the empty vehicle material sheet receiving device to enter, one end of the first track is connected with the material sheet receiving device supply device, and the other end of the first track is connected with the annular track; and one end of the second track is connected with the battery pole group accommodating device, and the other end of the second track is connected with the annular track.
In one embodiment, the insertion of the empty carrier web into the carrier web and the removal of the carrier web take place simultaneously.
According to another aspect, the invention also relates to a method for implementing lamination of the lamination system of the battery cell, comprising the following steps:
and after the stacking of the first material sheet is completed, the material sheet supporting devices continue to move, when the material sheet supporting devices move to the next lamination position respectively, the stacking operation of the material sheets is repeated until each material sheet supporting device completes the manufacture of the battery pole group, and the stacking mode of the material sheets is adopted on each material sheet supporting device.
The method can realize simultaneous lamination through each station, and simultaneously superimpose a plurality of lamination sheets, thereby greatly improving the lamination efficiency.
Preferably, the stacking of the webs specifically includes: the positive electrode roll feeding device provides a positive electrode material belt, the positive electrode roll cutting device cuts the positive electrode material belt into a plurality of positive electrode plates, and the positive electrode mechanical arm places one positive electrode plate on a corresponding material plate receiving device, or places at least two positive electrode plates on the corresponding material plate receiving device at intervals; specifically, the tablet can be 2 tablets, 3 tablets, 4 tablets and the like;
simultaneously, the positive diaphragm winding and feeding device provides a positive diaphragm material belt, the positive diaphragm material belt is cut into a plurality of positive diaphragm sheets by the positive diaphragm winding and cutting device, and one positive diaphragm sheet is placed on a corresponding sheet receiving device by the positive diaphragm mechanical arm, or at least two positive diaphragm sheets are placed on the corresponding sheet receiving device at intervals; specifically, the tablet can be 2 tablets, 3 tablets, 4 tablets and the like;
simultaneously, the negative electrode roll feeding device provides a negative electrode material belt, the negative electrode roll cutting device cuts the negative electrode material belt into negative electrode sheets, and the negative electrode mechanical arm places one negative electrode sheet on the corresponding material sheet receiving device, or places at least two negative electrode sheets on the corresponding material sheet receiving device at intervals; specifically, the tablet can be 2 tablets, 3 tablets, 4 tablets and the like;
meanwhile, the negative electrode diaphragm winding and feeding device provides a negative electrode diaphragm material belt, the negative electrode diaphragm winding and cutting device cuts the negative electrode diaphragm material belt into a plurality of negative electrode diaphragm sheets, and the negative electrode diaphragm manipulator places one negative electrode diaphragm sheet on a corresponding sheet receiving device, or places at least two negative electrode diaphragm sheets on the corresponding sheet receiving device at intervals, and the negative electrode diaphragm sheets can be particularly 2 sheets, 3 sheets, 4 sheets and the like.
Preferably, each of the tabletting assemblies performs a tabletting operation when the positive electrode manipulator, the positive electrode diaphragm manipulator, the negative electrode manipulator and the negative electrode diaphragm manipulator complete the lamination operation simultaneously.
In one embodiment, the robot arm places the web on the web receiving device, each of the compression assemblies secures the web, the robot arm moves back up at the same time, and after moving to the void, all of the web receiving devices begin to move.
Preferably, the web receiving means of the unloaded web is driven from a first track into the endless track; after lamination is completed, the web receiving device carrying the battery pole groups is driven away from the annular track from the second track.
Preferably, the positive electrode material belt, the positive electrode diaphragm material belt, the negative electrode material belt and the negative electrode diaphragm material belt respectively perform defect detection and correction in sequence.
The quality of the material sheet is ensured through defect detection and deviation correction operation.
In one embodiment, the process flow comprises: the anode and cathode electrode rolls and the diaphragm rolls respectively provide a material belt, detect defects, correct deviation, cut, position, laminate, blanking, rubberizing, hot pressing (short circuit detection), weighing and blanking (NG classification and rejection).
The invention will be further illustrated with reference to specific examples.
Fig. 1 is a schematic diagram of a lamination system of the battery cell of the present invention. Fig. 2 is a schematic view of lamination sites for lamination on an endless track according to the present invention. Fig. 3 is a flow chart of the cell lamination method of the present invention. Fig. 4 is a schematic view of a battery pole group obtained by the lamination method of the present invention.
Example 1
The lamination system of the battery cell comprises a disc device and 2 lamination parts, namely a first positive plate lamination part 2, a first positive plate lamination part 3, a first negative plate lamination part 4, a first negative plate lamination part 5, a second positive plate lamination part 6, a second positive plate lamination part 7, a second negative plate lamination part 8 and a second negative plate lamination part 9;
the disc body equipment comprises a disc body 1 which is horizontally arranged, wherein the disc body 1 comprises an upper surface, a lower surface and side surfaces, an annular track 100 is arranged around the side surfaces of the disc body 1 in a circle, and 8 lamination sites are arranged on the annular track 100; the circular track 100 is in an elliptical configuration, a first end point of a major axis of the ellipse is provided with a first lamination site 1001, a second end point of a major axis of the ellipse is provided with a fifth lamination site 1005, a second lamination site 1002, a third lamination site 1003 and a fourth lamination site 1004 are respectively and sequentially arranged between the first lamination site 1001 and the fifth lamination site 1005 in a counterclockwise direction, and a sixth lamination site 1006, a seventh lamination site 1007 and an eighth lamination site 1008 are sequentially arranged between the fifth lamination site 1005 and the first lamination site 1001;
the first positive plate lamination part 2, the first positive plate lamination part 3, the first negative plate lamination part 4, the first negative plate lamination part 5, the second positive plate lamination part 6, the second positive plate lamination part 7, the second negative plate lamination part 8 and the second negative plate lamination part 9 are sequentially arranged around the annular track 100 in a surrounding manner, and sequentially correspond to a second lamination site 1002, a third lamination site 1003, a fourth lamination site 1004, a fifth lamination site 1005, a sixth lamination site 1006, a seventh lamination site 1007 and an eighth lamination site 1008 respectively;
the annular track 100 is provided with 8 movable tablet receiving devices for placing tablets, namely a first tablet receiving device 101, a second tablet receiving device 102, a third tablet receiving device 103, a fourth tablet receiving device 104, a fifth tablet receiving device 105, a sixth tablet receiving device 106, a seventh tablet receiving device 107 and an eighth tablet receiving device 108;
the first positive electrode sheet lamination section 2 includes: a first positive electrode roll feeding device 203 for providing a first positive electrode material strip, a first positive electrode roll cutting device 202 for cutting the first positive electrode material strip, and a first positive electrode manipulator 201 for stacking first positive electrode sheets; the first positive electrode diaphragm lamination portion 3 includes: a first positive electrode diaphragm roll feeding device 303 for providing a first positive electrode diaphragm material belt, a first positive electrode diaphragm roll cutting device 302 for cutting the first positive electrode diaphragm material belt, and a first positive electrode diaphragm manipulator 301 for stacking first positive electrode diaphragm sheets; the first negative electrode sheet lamination portion 4 includes: a first negative electrode roll feeding device 403 for providing a first negative electrode material tape, a first negative electrode roll cutting device 402 for cutting the first negative electrode material tape, and a first negative electrode manipulator 401 for stacking the first negative electrode sheets; the first negative electrode separator lamination section 5 includes: a first negative electrode diaphragm roll feeding device 503 for providing a first negative electrode diaphragm material belt, a first negative electrode diaphragm roll cutting device 502 for cutting the first negative electrode diaphragm material belt, and a first negative electrode diaphragm manipulator 501 for stacking the first negative electrode diaphragm sheets;
the second positive electrode sheet lamination section 6 includes: a second positive electrode roll feeding device 603 for providing a second positive electrode material belt, a second positive electrode roll cutting device 602 for cutting the second positive electrode material belt, and a second positive electrode manipulator 601 for stacking the second positive electrode sheets; the second positive electrode diaphragm lamination portion 7 includes: a second positive electrode diaphragm roll feeding device 703 for providing a second positive electrode diaphragm material belt, a second positive electrode diaphragm roll cutting device 702 for cutting the second positive electrode diaphragm material belt, and a second positive electrode diaphragm manipulator 701 for stacking the second positive electrode diaphragm sheets; the second negative electrode sheet lamination portion 8 includes: a second negative electrode roll feeding device 803 for providing a second negative electrode material tape, a second negative electrode roll cutting device 802 for cutting the second negative electrode material tape, and a second negative electrode manipulator 801 for stacking the second negative electrode sheets; the second anode separator lamination portion 9 includes: a second negative electrode diaphragm roll feeding device 903 for providing a second negative electrode diaphragm material strip, a second negative electrode diaphragm roll cutting device 902 for cutting the second negative electrode diaphragm material strip, and a second negative electrode diaphragm manipulator 901 for stacking the second negative electrode diaphragm sheets;
each tablet receiving device is respectively provided with a tablet pressing component for fixing tablets;
lamination sites are uniformly distributed on the annular track 100;
a positive electrode material belt defect detection device and a positive electrode material belt deviation correction device are arranged between the first positive electrode roll feeding device 203 and the first positive electrode roll cutting device 202; a positive electrode diaphragm defect detection device and a positive electrode diaphragm deviation correction device are arranged between the first positive electrode diaphragm roll feeding device 303 and the first positive electrode diaphragm roll cutting device 302; a negative electrode material belt defect detection device and a negative electrode material belt deviation correction device are arranged between the first negative electrode roll feeding device 403 and the first negative electrode roll cutting device 402; a negative electrode diaphragm defect detection device and a negative electrode diaphragm deviation correction device are arranged between the first negative electrode diaphragm roll feeding device 503 and the first negative electrode diaphragm roll cutting device 502;
a positive electrode material belt defect detection device and a positive electrode material belt deviation correction device are arranged between the second positive electrode roll feeding device 603 and the second positive electrode roll cutting device 602; a positive electrode diaphragm defect detection device and a positive electrode diaphragm deviation correction device are arranged between the second positive electrode diaphragm roll feeding device 703 and the second positive electrode diaphragm roll cutting device 702; a negative electrode material belt defect detection device and a negative electrode material belt deviation correction device are arranged between the second negative electrode roll feeding device 803 and the second negative electrode roll cutting device 802; a negative electrode diaphragm defect detection device and a negative electrode diaphragm deviation correction device are arranged between the second negative electrode diaphragm roll feeding device 903 and the second negative electrode diaphragm roll cutting device 902;
the side of disk body still is provided with: the first rail is used for allowing the empty vehicle material sheet receiving device to enter, one end of the first rail is connected with the material sheet receiving device feeding device, and the other end of the first rail is connected with the annular rail 100; and a second rail from which the sheet receiving device carrying the sheet is driven, one end of the second rail being connected to the battery pole group accommodating device, and the other end of the second rail being connected to the annular rail 100.
Example 2
A method of cell lamination using the lamination system of the cell of example 1, comprising the steps of:
8 sheet receiving devices which do not carry sheets are driven into the annular track 100 on the side face of the tray body from the first track, the annular track 100 carries out the same-direction circular movement, each time the 8 sheet receiving devices move to respectively correspond to one lamination site, the movement is stopped, and each group of positive sheet lamination parts, positive diaphragm lamination parts, negative diaphragm lamination parts and negative diaphragm lamination parts of the lamination parts carry out the stacking of the sheets on the corresponding sheet receiving devices;
the stacking of the material sheets specifically includes: the first positive electrode roll feeding device 203 provides a first positive electrode material belt, the first positive electrode roll cutting device 202 cuts the first positive electrode material belt into a plurality of first positive electrode plates, and the first positive electrode mechanical arm 201 places the two first positive electrode plates on the corresponding material plate receiving devices at intervals; meanwhile, the first positive diaphragm roll feeding device 303 provides a first positive diaphragm material belt, the first positive diaphragm roll cutting device 302 cuts the first positive diaphragm material belt into a plurality of first positive diaphragm sheets, and the first positive diaphragm mechanical arm 301 places the two first positive diaphragm sheets on the corresponding sheet receiving devices at intervals; meanwhile, the first negative electrode roll feeding device 403 provides a first negative electrode material belt, the first negative electrode roll cutting device 402 cuts the first negative electrode material belt into first negative electrode pieces, and the first negative electrode mechanical arm 401 places the two first negative electrode pieces on the corresponding material piece receiving devices at intervals; meanwhile, the first negative electrode diaphragm roll feeding device 503 provides a first negative electrode diaphragm material belt, the first negative electrode diaphragm roll cutting device 502 cuts the first negative electrode diaphragm material belt into a plurality of first negative electrode diaphragm sheets, and the first negative electrode diaphragm mechanical arm 501 places the two first negative electrode diaphragm sheets on the corresponding material sheet receiving devices at intervals;
meanwhile, the second positive electrode roll feeding device 603 provides a second positive electrode material belt, the second positive electrode roll cutting device 602 cuts the second positive electrode material belt into a plurality of second positive electrode plates, and the second positive electrode mechanical arm 601 places the two second positive electrode plates on the corresponding material plate receiving device at intervals; meanwhile, the second positive diaphragm roll feeding device 703 provides a second positive diaphragm material belt, the second positive diaphragm roll cutting device 702 cuts the second positive diaphragm material belt into a plurality of second positive diaphragm sheets, and the second positive diaphragm mechanical arm 701 places the two second positive diaphragm sheets on the corresponding sheet receiving device at intervals; meanwhile, the second negative electrode roll feeding device 803 provides a second negative electrode material belt, the second negative electrode roll cutting device 802 cuts the second negative electrode material belt into second negative electrode pieces, and the second negative electrode mechanical arm 801 places the two second negative electrode pieces on the corresponding material piece receiving devices at intervals; meanwhile, a second negative electrode diaphragm roll feeding device 903 provides a second negative electrode diaphragm material belt, a second negative electrode diaphragm roll cutting device 902 cuts the second negative electrode diaphragm material belt into a plurality of second negative electrode diaphragm sheets, and a second negative electrode diaphragm mechanical arm 901 places the two second negative electrode diaphragm sheets on the corresponding sheet receiving devices at intervals;
after the stacking of the first material sheets is completed, the 8 material sheet receiving devices continue to move, and when the 8 material sheet receiving devices move to respectively correspond to the next lamination sites, the stacking operation of the material sheets is repeated, and the stacking of the material sheets is completed on each material sheet receiving device in a stacking mode;
all the positive electrode material belts, the positive electrode diaphragm material belts, the negative electrode material belts and the negative electrode diaphragm material belts are respectively subjected to defect detection and correction in sequence;
after all the positive electrode mechanical arm, the positive electrode diaphragm mechanical arm, the negative electrode mechanical arm and the negative electrode diaphragm mechanical arm finish lamination operation at the same time, each tabletting assembly performs tabletting operation;
after lamination is completed, the web receiving device carrying the battery pole groups is driven off the annular rail 100 from the second rail.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A lamination system for a battery cell comprising a tray device and m sets of lamination portions, each set of lamination portions comprising: the positive diaphragm lamination part is used for providing positive plates and carrying out positive plate lamination, the positive diaphragm lamination part is used for providing positive diaphragms and carrying out positive diaphragm lamination, the negative plate lamination part is used for providing negative plates and carrying out negative plate lamination, and the negative diaphragm lamination part is used for providing negative diaphragms and carrying out negative diaphragm lamination, wherein m is more than or equal to 1 and is an integer;
the disc body equipment comprises a disc body which is horizontally arranged, wherein the disc body comprises an upper surface, a lower surface and a side surface, an annular track is arranged around the side surface of the disc body in a circle, 4n lamination sites are arranged on the annular track, n is more than or equal to 1 and is an integer, and m=n;
in each group of lamination parts, the positive plate lamination part, the positive diaphragm lamination part, the negative plate lamination part and the negative diaphragm lamination part are sequentially arranged around the annular track in a surrounding manner in sequence, and any one of the positive plate lamination part, the positive diaphragm lamination part, the negative plate lamination part and the negative diaphragm lamination part corresponds to one lamination site respectively;
the circular track is provided with a plurality of tablet receiving devices which are used for placing tablets and can move circularly, and the number of the tablet receiving devices is the same as that of the lamination sites.
2. The battery cell lamination system of claim 1, wherein the positive plate lamination section comprises: the device comprises a positive electrode roll feeding device for providing a positive electrode material belt, a positive electrode roll cutting device for cutting the positive electrode material belt, and a positive electrode manipulator for stacking positive electrode plates;
the positive electrode diaphragm lamination portion includes: the device comprises a positive electrode diaphragm roll feeding device for providing a positive electrode diaphragm material belt, a positive electrode diaphragm roll cutting device for cutting the positive electrode diaphragm material belt, and a positive electrode diaphragm manipulator for stacking positive electrode diaphragm sheets;
the negative electrode sheet lamination portion includes: the negative electrode winding device is used for providing a negative electrode material belt, a negative electrode winding cutting device used for cutting the negative electrode material belt and a negative electrode manipulator used for stacking negative electrode sheets;
the negative electrode diaphragm lamination portion includes: the negative electrode diaphragm mechanical arm is used for stacking negative electrode diaphragm sheets.
3. The battery cell lamination system of claim 1, wherein each of the web receiving devices is provided with a respective lamination assembly for securing a web;
the lamination sites are uniformly distributed on the annular track.
4. The battery cell lamination system according to claim 2, wherein in each group of the lamination sections, a positive electrode material tape defect detection device and a positive electrode material tape correction device are provided between the positive electrode roll feeding device and the positive electrode roll cutting device;
a positive diaphragm defect detection device and a positive diaphragm deviation correction device are arranged between the positive diaphragm coil feeding device and the positive diaphragm coil cutting device;
a negative electrode material belt defect detection device and a negative electrode material belt deviation correction device are arranged between the negative electrode roll feeding device and the negative electrode roll cutting device;
and a negative electrode diaphragm defect detection device and a negative electrode diaphragm deviation correction device are arranged between the negative electrode diaphragm winding feeding device and the negative electrode diaphragm winding cutting device.
5. The cell lamination system of claim 1, wherein m is 2, 3 or 4;
the annular track is in an elliptical configuration;
when m=2, a first end point of a long axis of the ellipse is provided with a first lamination site, a second end point of the long axis of the ellipse is provided with a fifth lamination site, a second lamination site, a third lamination site and a fourth lamination site are sequentially arranged between the first lamination site and the fifth lamination site respectively in a counter-clockwise direction, and a sixth lamination site, a seventh lamination site and an eighth lamination site are sequentially arranged between the fifth lamination site and the first lamination site;
the side of disk body still is provided with: the first track is used for allowing the empty vehicle material sheet receiving device to enter, one end of the first track is connected with the material sheet receiving device supply device, and the other end of the first track is connected with the annular track; and one end of the second track is connected with the battery pole group accommodating device, and the other end of the second track is connected with the annular track.
6. Method for implementing lamination using a lamination system of cells according to any one of claims 1 to 5, characterized in that it comprises the following steps:
and after the stacking of the first material sheet is completed, the material sheet supporting devices continue to move, when the material sheet supporting devices move to the next lamination position respectively, the stacking operation of the material sheets is repeated until each material sheet supporting device completes the manufacture of the battery pole group, and the stacking mode of the material sheets is adopted on each material sheet supporting device.
7. The method according to claim 6, wherein the stacking of the webs comprises in particular: the positive electrode roll feeding device provides a positive electrode material belt, the positive electrode roll cutting device cuts the positive electrode material belt into a plurality of positive electrode plates, and the positive electrode mechanical arm places one positive electrode plate on a corresponding material plate receiving device, or places at least two positive electrode plates on the corresponding material plate receiving device at intervals;
simultaneously, the positive diaphragm winding and feeding device provides a positive diaphragm material belt, the positive diaphragm material belt is cut into a plurality of positive diaphragm sheets by the positive diaphragm winding and cutting device, and one positive diaphragm sheet is placed on a corresponding sheet receiving device by the positive diaphragm mechanical arm, or at least two positive diaphragm sheets are placed on the corresponding sheet receiving device at intervals;
simultaneously, the negative electrode roll feeding device provides a negative electrode material belt, the negative electrode roll cutting device cuts the negative electrode material belt into negative electrode sheets, and the negative electrode mechanical arm places one negative electrode sheet on the corresponding material sheet receiving device, or places at least two negative electrode sheets on the corresponding material sheet receiving device at intervals;
meanwhile, the negative diaphragm winding and feeding device provides a negative diaphragm material belt, the negative diaphragm winding and cutting device cuts the negative diaphragm material belt into a plurality of negative diaphragm sheets, and the negative diaphragm manipulator places one negative diaphragm sheet on the corresponding sheet receiving device or places at least two negative diaphragm sheets on the corresponding sheet receiving device at intervals.
8. The method of claim 7, wherein each tabletting assembly performs a tabletting operation after the positive electrode manipulator, the positive electrode separator manipulator, the negative electrode manipulator, and the negative electrode separator manipulator complete the lamination operation simultaneously.
9. The method of claim 6, wherein the web receiving device that is not carrying a web is driven from a first track into the endless track;
after lamination is completed, the web receiving device carrying the battery pole groups is driven away from the annular track from the second track.
10. The method of claim 7, wherein the positive electrode strip, the positive electrode separator strip, the negative electrode strip, and the negative electrode separator strip are each subjected to defect detection and correction in sequence.
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| WO2021008554A1 (en) * | 2019-07-16 | 2021-01-21 | 蜂巢能源科技有限公司 | Die-cutting lamination system and method |
| CN213184399U (en) * | 2020-07-09 | 2021-05-11 | 合肥国轩高科动力能源有限公司 | Battery lamination device |
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| CN102969538A (en) * | 2012-10-26 | 2013-03-13 | 东莞市鸿宝锂电科技有限公司 | Battery lamination stacking machine of lithium-ion power battery |
| JP5588579B1 (en) * | 2013-05-21 | 2014-09-10 | 日機装株式会社 | Laminating apparatus and laminating method |
| CN206893721U (en) * | 2017-05-12 | 2018-01-16 | 深圳迅泰德自动化科技有限公司 | Battery battery core automatic laminating equipment |
| CN208062198U (en) * | 2018-03-16 | 2018-11-06 | 南京博能自动化科技有限公司 | A kind of lamination device |
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| CN114079088A (en) | 2022-02-22 |
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