CN113871721A - Laminating machine and laminating method - Google Patents
Laminating machine and laminating method Download PDFInfo
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- CN113871721A CN113871721A CN202110852179.3A CN202110852179A CN113871721A CN 113871721 A CN113871721 A CN 113871721A CN 202110852179 A CN202110852179 A CN 202110852179A CN 113871721 A CN113871721 A CN 113871721A
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- lamination
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000010030 laminating Methods 0.000 title description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 134
- 238000003475 lamination Methods 0.000 claims abstract description 116
- 238000013329 compounding Methods 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims description 142
- 150000001875 compounds Chemical class 0.000 claims description 48
- 239000013067 intermediate product Substances 0.000 claims description 44
- 239000012528 membrane Substances 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 230000005611 electricity Effects 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000006798 recombination Effects 0.000 description 4
- 238000005215 recombination Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
A lamination machine and a lamination method are provided. The lamination machine includes a plurality of lamination units that set gradually from the back forward, and every lamination unit includes: the pole piece belt supply device is used for supplying a pole piece belt forwards, the pole piece belt is a first pole piece belt or a second pole piece belt, and the polarities of the first pole piece belt and the second pole piece belt are opposite; the first cutting device is arranged corresponding to the pole piece belt supply device and is used for sequentially cutting pole pieces on the pole piece belt supplied forwards; the diaphragm supply device is arranged corresponding to the pole piece belt supply device and is used for supplying diaphragms forwards; and the thermal compounding device is positioned in front of the pole piece strip supply device, the first cutting device and the diaphragm supply device and is used for thermally compounding the diaphragm and the pole pieces. This lamination machine, electricity core production speed has promoted nearly N times, so the production efficiency of lamination electricity core is higher.
Description
Technical Field
The invention relates to the technical field of lithium battery production, in particular to a laminating machine and a laminating method.
Background
The lithium ion battery comprises a winding battery cell and a laminated battery cell. The winding battery core is high in processing speed and efficiency, but the side edge of the pole piece is seriously bent in the winding process, so that the winding battery core is poor in performance and low in energy storage capacity. The positive plate and the negative plate of the laminated battery cell are uniform in size and regular in appearance, so that the laminated battery cell is good in performance and high in energy storage capacity, and the laminated battery is also the current mainstream development direction.
At present, the cell lamination process mainly comprises the following steps:
the first type is Z-shaped lamination, namely, the diaphragm swings in a Z-shaped reciprocating manner, and a positive plate and a negative plate are sequentially superposed during swinging to finally manufacture a battery cell;
the second type is thermal composite lamination, namely a plurality of positive plates and a plurality of negative plates are arranged between two layers of diaphragms at intervals, the two layers of diaphragms, the plurality of positive plates and the plurality of negative plates are thermally compounded and then are divided into a plurality of diaphragm-coated pole piece units, and then the plurality of pole piece units are selectively stacked to finally manufacture the battery cell;
the third method is that a positive plate, a diaphragm and a negative plate are sequentially stacked, the diaphragm separates the positive plate from the negative plate, and finally the battery core is manufactured;
although the processes are all simple, the production efficiency of the laminated battery cell is low.
Disclosure of Invention
The embodiment of the invention provides a laminating machine which can effectively improve the production efficiency of laminated battery cells.
The embodiment of the invention also provides a lamination method.
The laminating machine provided by the embodiment of the invention comprises a plurality of laminating units which are sequentially arranged from back to front, wherein each laminating unit comprises: the pole piece belt supply device is used for supplying a pole piece belt forwards, the pole piece belt is a first pole piece belt or a second pole piece belt, and the polarities of the first pole piece belt and the second pole piece belt are opposite; the first cutting device is arranged corresponding to the pole piece belt supply device and is used for sequentially cutting pole pieces on the pole piece belt supplied forwards; the diaphragm supply device is arranged corresponding to the pole piece belt supply device and is used for supplying diaphragms forwards; the thermal compounding device is positioned in front of the pole piece strip supply device, the first cutting device and the diaphragm supply device and is used for thermally compounding the diaphragm and the pole piece; the pole piece belt supply device of the 2n +1 th lamination unit is a first pole piece belt supply device used for supplying a first pole piece belt; the pole piece belt supply device of the 2n +2 th lamination unit is a second pole piece belt supply device used for supplying a second pole piece belt, and n is an integer not less than 0.
In an exemplary embodiment, the 1 st lamination unit: the pole piece belt supply device comprises a first pole piece belt supply mechanism, the first cutting device comprises a first cutting mechanism, the diaphragm supply device comprises two diaphragm supply mechanisms, the first pole piece belt supply mechanism is located between the two diaphragm supply mechanisms, and the first cutting mechanism is located in front of the first pole piece belt supply mechanism.
In an exemplary embodiment, the 2n +3 th lamination unit: the pole piece belt supply device comprises two first pole piece belt supply mechanisms, the first cutting device comprises two first cutting mechanisms, the diaphragm supply device comprises two diaphragm supply mechanisms, the two first pole piece belt supply mechanisms are located between the two diaphragm supply mechanisms, and the two first cutting mechanisms are located in front of the two first pole piece belt supply mechanisms in a one-to-one correspondence mode.
In an exemplary embodiment, the 2n +2 th lamination unit: the pole piece belt supply device comprises two second pole piece belt supply mechanisms, the first cutting device comprises two first cutting mechanisms, the diaphragm supply device comprises two diaphragm supply mechanisms, the two second pole piece belt supply mechanisms are located between the two diaphragm supply mechanisms, and the two first cutting mechanisms are located in front of the two second pole piece belt supply mechanisms in a one-to-one correspondence mode.
In an exemplary embodiment, the 2n +3 th lamination unit: the pole piece belt supply device comprises a first pole piece belt supply mechanism, the first cutting device comprises a first cutting mechanism, the diaphragm supply device comprises a diaphragm supply mechanism, the first pole piece belt supply mechanism is located between the diaphragm supply mechanism and the 1 st lamination unit, and the first cutting mechanism is located in front of the first pole piece belt supply mechanism.
In an exemplary embodiment, the 2n +2 th lamination unit: the pole piece belt supply device comprises a second pole piece belt supply mechanism, the first cutting device comprises a first cutting mechanism, the diaphragm supply device comprises a diaphragm supply mechanism, the second pole piece belt supply mechanism is located between the diaphragm supply mechanism and the 1 st lamination unit, and the first cutting mechanism is located in front of the second pole piece belt supply mechanism.
In an exemplary embodiment, each lamination unit further includes: and a membrane processing device positioned in front of the membrane supply device and used for improving the adhesive property of the supplied membrane.
In an exemplary embodiment, the lamination machine further includes:
and the second cutting mechanism is positioned in front of the plurality of lamination units and used for cutting the continuous cells conveyed forwards into single cells.
In an exemplary embodiment, each thermal composite device comprises a first roller set, a heating plate set and a second roller set which are arranged from back to front in sequence, and the working temperature of the heating plate set is set to be 60-120 degrees.
In an exemplary embodiment, the heating plate set, the first pole piece strip supply, the second pole piece strip supply, the first cutting device, and the membrane supply are selectively operable and deactivatable.
The lamination method provided by the embodiment of the invention is applied to the lamination machine in any embodiment, and comprises the following steps:
the 1 st first cutting device sequentially cuts pole pieces on the pole piece belts supplied by the 1 st pole piece belt supply device, and the 1 st thermal compounding device enables the pole pieces cut by the 1 st first cutting device to be sequentially thermally compounded with the diaphragms supplied forwards by the 1 st diaphragm supply device;
the N +2 th first cutting device cuts out a pole piece on a pole piece belt supplied by the N +2 th pole piece belt supply device, the N +2 th thermal compound device compounds a pole piece cut out by the N +2 th first cutting device and a diaphragm supplied forward by the N +2 th diaphragm supply device on an outer diaphragm of an intermediate product output by the N +1 th thermal compound device, and the pole piece cut out by the N +2 th first cutting device is positioned between the diaphragm supplied forward by the N +2 th diaphragm supply device and the intermediate product output by the N +1 th thermal compound device, and finally, a continuous battery cell with N-time lamination is manufactured.
In an exemplary embodiment, in the step of thermally compounding the pole pieces cut by the 1 st first cutting device with the diaphragms fed forward by the 1 st diaphragm feeding device in sequence by the 1 st thermal compounding device, the pole pieces cut by the 1 st first cutting device are thermally compounded between two diaphragms fed forward by the 1 st diaphragm feeding device at intervals in sequence.
In an exemplary embodiment, in the step of combining the pole piece cut by the (n + 2) th first cutting device and the diaphragm fed forward by the (n + 2) th diaphragm feeding device on the outer diaphragm of the intermediate product output by the (n + 1) th thermal combining device, and the pole piece cut by the (n + 2) th first cutting device is positioned between the diaphragm fed forward by the (n + 2) th diaphragm feeding device and the intermediate product output by the (n + 1) th thermal combining device, two pole pieces cut by the (n + 2) th first cutting device at a time are correspondingly thermally combined on the two outer diaphragms of the intermediate product output by the (n + 1) th thermal combining device, and the position of the two layers of diaphragms supplied forward by the (n + 2) th diaphragm supply device is correspondingly thermally compounded on the side surfaces, back to the intermediate product, of the two pole pieces cut by the (n + 2) th first cutting device, corresponding to the positions of the pole pieces in the intermediate product.
In an exemplary embodiment, in the step of the n +2 th thermal compound device compounding the n +2 th first cutting device cut pole piece and the n +2 th diaphragm supplied forward by the diaphragm supply device on the outer diaphragm of the n +1 th intermediate product outputted from the thermal compound device, and the n +2 th first cutting device cut pole piece is positioned between the n +2 th diaphragm supplied forward by the diaphragm supply device and the n +1 th intermediate product outputted from the thermal compound device, one pole piece cut at a time by the n +2 th first cutting device is thermally compounded on the outer diaphragm of the first side of the n +1 th intermediate product outputted from the thermal compound device, and the position of the pole piece corresponds to that of the middle product, and the diaphragm supplied forward by the (n + 2) th diaphragm supply device is thermally compounded on the side surface, back to the middle product, of one pole piece cut by the (n + 2) th first cutting device.
In an exemplary embodiment, after the step of making N successive cells of a laminate, the method further includes: and cutting the manufactured continuous battery cell of the laminated sheet N times into single battery cells through a second cutting mechanism.
In an exemplary embodiment, the supplied membrane is subjected to a membrane treatment mechanism to enhance adhesion prior to thermal compounding.
In an exemplary embodiment, before the step that the 1 st first cutting device sequentially cuts out pole pieces on the pole piece belts supplied by the 1 st pole piece belt supply device, and the 1 st thermal compounding device sequentially thermally compounds the pole pieces cut out by the 1 st first cutting device with the diaphragms supplied forward by the 1 st diaphragm supply device, the method further comprises: and controlling the 1 st to Nth lamination units to operate, and controlling the heating plate groups, the first pole piece strip supply device, the second pole piece strip supply device, the first cutting device and the diaphragm supply device of the rest lamination units to stop.
The battery cell provided by the embodiment of the invention comprises: the base layer comprises two layers of diaphragms and a pole piece positioned between the two layers of diaphragms; and a plurality of stromatolites that stack gradually, set up the side of basic unit, every the stromatolite includes pole piece and diaphragm, every the pole piece of stromatolite is close to basic unit, diaphragm are kept away from the basic unit, and the polarity of two arbitrary adjacent pole pieces is opposite.
In an exemplary embodiment, both sides of the base layer are provided with a plurality of stacked layers which are sequentially stacked.
In an exemplary embodiment, the battery cell is manufactured by using the lamination machine provided in the above embodiment.
In an exemplary embodiment, a side of the base layer is provided with a plurality of stacked layers sequentially stacked.
The battery cell string provided by the embodiment of the invention comprises a plurality of battery cells in any one of the above embodiments, wherein adjacent battery cells are spaced, and diaphragms of the adjacent battery cells are connected in a one-to-one correspondence manner.
In an exemplary embodiment, the cell string is manufactured by using the lamination machine provided in the above embodiment.
In the lamination machine provided by the embodiment of the present invention, the pole piece strip supply device of the 2n +1 th lamination unit is a first pole piece strip supply device, the first pole piece strip supply device supplies a first pole piece strip, the pole piece strip supply device of the 2n +2 th lamination unit is a second pole piece strip supply device, the second pole piece strip supply device supplies a second pole piece strip, and the polarities of the first pole piece strip and the second pole piece strip are opposite; the 1 st first cutting device sequentially cuts pole pieces on the first pole piece belt supplied by the 1 st pole piece belt supply device, and the 1 st thermal compounding device forwards supplies diaphragms to the 1 st diaphragm supply device for thermal compounding; the N +2 th first cutting device cuts out the pole piece in proper order on the pole piece area of the supply of the N +2 th pole piece area feeding mechanism, the N +2 th thermal compound device compounds the pole piece that the N +2 th first cutting device cut out and the diaphragm that the N +2 th diaphragm feeding mechanism supplied forward again in the side of the intermediate product of the N +1 th thermal compound device output, make the continuous electric core of lamination N times finally, it can to cut into each individual electric core with the continuous electric core of making again, the polarity of adjacent pole piece is all opposite on every individual electric core of cutting into, electric core production speed has promoted nearly N times, so the production efficiency of this technology lamination electric core is higher.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic block diagram of a lamination stacking machine according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural diagram of an example of a single battery cell according to a first embodiment of the present invention;
fig. 3 is a schematic cross-sectional structural diagram of another example of a single battery cell according to the first embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
100 lamination units, 110 thermal compounding device, 111 first roller group, 112 heating plate group, 113 second roller group, 120 feeding device, 121 diaphragm supplying mechanism, 122 first pole piece belt supplying mechanism, 123 first cutting mechanism, 124 second pole piece belt supplying mechanism, 200 diaphragm processing mechanism, 300 second cutting mechanism, 400 single battery cores, 410 positive pole piece, 420 negative pole piece and 430 diaphragm.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Example one
The lamination machine provided by the embodiment of the invention comprises M lamination units 100 which are sequentially arranged along a transmission direction, as shown in FIG. 1, wherein each lamination unit 100 comprises a feeding device 120 and a thermal compounding device 110 which is positioned in front of the feeding device 120 along the transmission direction, each feeding device 120 comprises a diaphragm supply mechanism 121 and a pole piece supply device, a diaphragm roll (namely, a rolled diaphragm) is installed on the diaphragm supply mechanism 121, the diaphragm supply mechanism 121 is used for continuously supplying the diaphragm, a pole piece roll (namely, a rolled pole piece belt) is installed on the pole piece supply device, the pole piece supply device is used for continuously supplying pole pieces (the pole pieces are obtained by cutting the pole piece belt, two continuously supplied pole pieces have a supply interval, the supply interval can be not more than 5s), and the thermal compounding device 110 is used for thermally compounding the pole pieces and the diaphragm. The polarity of the lamination supplied by the adjacent feeding device 120 is opposite, that is, the polarity of the adjacent pole piece on any single cell is opposite.
This lamination machine, first feedway 120 all supplies diaphragm and pole piece forward continuously to nth (M is greater than or equal to N) feedway 120 along the direction of transmission, first heat set composite device 110 carries out heat recombination (makes continuous basic unit) with the pole piece and the diaphragm that first feedway 120 supplied continuously, the heat set composite device of next stage is in the side of the intermediate product of the heat set composite device 110 output of preceding stage again pole piece and diaphragm (makes the stromatolite in proper order, the pole piece of stromatolite all corresponds with the pole piece of basic unit), it is electric core (from the basic unit beginning to calculate, stromatolite N times) of lamination N times to make continuously finally, link together through the diaphragm between these adjacent electric core, it can to cut into each solitary electric core with the continuous electric core of making again, electric core production speed has promoted nearly N times, so the production efficiency of this technology lamination electric core is higher. The next stage and the previous stage are two adjacent stages. The next stage is located in front of the previous stage in the transport direction. The cell is a laminated cell.
In the manufactured continuous cells (i.e., cell strings, not shown in the figure), the interval between adjacent cells (individual cells) may be adjusted according to the interval of the stacked sheets supplied by the first feeding device 120, and will not be described herein again. The first electrode strip can be a positive electrode strip (the electrode piece cut from the positive electrode strip is a positive electrode), and the second electrode strip can be a negative electrode strip (the electrode piece cut from the negative electrode strip is a negative electrode); alternatively, the first electrode strip may be a negative electrode strip (the electrode piece cut from the negative electrode strip is a negative electrode piece), and the second electrode strip may be a positive electrode strip (the electrode piece cut from the positive electrode strip is a positive electrode piece).
In an exemplary embodiment, as shown in fig. 1, in the direction along the transport direction from back to front: the first feeding device 120 comprises two diaphragm supplying mechanisms 121 and a pole piece supplying device, and the pole piece supplying device is located between the two diaphragm supplying mechanisms 121 (one of the two diaphragm supplying mechanisms is located above the pole piece supplying device, and the other is located below the pole piece supplying device), and the pole piece is located between the two diaphragms after compounding; each of the other feeding devices 120 includes two diaphragm supplying mechanisms 121 and two pole piece supplying devices, the two pole piece supplying devices are located between the two diaphragm supplying mechanisms 121 (the two diaphragm supplying mechanisms are arranged at intervals from top to bottom, and the two pole piece supplying devices are also arranged at intervals from top to bottom), the two pole pieces supplied by the two pole piece supplying devices and the two diaphragms supplied by the two pole piece supplying devices are respectively thermally compounded on two side surfaces of the intermediate product output by the previous stage thermal compounding device 110, and the two pole pieces are located between the two diaphragms and the intermediate product, and are sequentially an intermediate product, two pole pieces and two diaphragms from inside to outside; as shown in fig. 2, reference numeral 400 is a single battery cell, reference numeral 410 is a positive electrode sheet, reference numeral 420 is a negative electrode sheet, reference numeral 430 is a diaphragm, the central negative electrode sheet 420 and two layers of diaphragms on two sides of the negative electrode sheet 420 form a base layer, and in this example, three laminated layers are disposed on two sides of the base layer.
In another exemplary embodiment, the first and second transport paths are arranged in a direction from the rear to the front in the transport direction: the first feeding device 120 comprises two diaphragm supply mechanisms 121 and a pole piece supply device, wherein the pole piece supply device is positioned between the two diaphragm supply mechanisms 121, and the pole piece is positioned between the two diaphragms after compounding; the remaining feeding devices 120 include a diaphragm feeding mechanism 121 and a pole piece feeding device, the pole piece feeding device is located between the diaphragm feeding mechanism 121 and the first feeding device 120, the pole piece fed by the pole piece feeding mechanism and the diaphragm fed by the pole piece feeding mechanism are respectively thermally compounded on one side of the intermediate product output by the previous stage thermal compounding device 110, and the pole piece is located between the diaphragm and the intermediate product (as can be understood in conjunction with fig. 1); as shown in fig. 3, reference numeral 400 is a single battery cell, reference numeral 410 is a positive electrode sheet, reference numeral 420 is a negative electrode sheet, reference numeral 430 is a separator, the lowermost negative electrode sheet 420 and two layers of separators at two sides of the negative electrode sheet 420 form a base layer, and in this example, five laminated layers are disposed on the upper side of the base layer.
The above two embodiments and their combination (for example, the other feeding devices may also be the combination of the manners disclosed in the above two embodiments) can achieve the purpose of the present application, and the purpose of the present application is not repeated herein without departing from the design concept of the present invention, and all of them should fall within the protection scope of the present application.
In an exemplary embodiment, as shown in fig. 1, a membrane treating mechanism 200 is disposed in front of each membrane supplying mechanism 121 in the transfer direction, and the membrane treating mechanism 200 is used to improve the adhesion performance of the membrane, so that the membrane can be better thermally compounded. For example, the membrane treating mechanism 200 may be provided as a corona machine (corona machine using voltage range is 2.0-3.5 KV) and its equivalent.
In an exemplary embodiment, as shown in fig. 1, each thermal recombination device 110 includes a first roll stack 111, a heating plate stack 112, and a second roll stack 113 arranged in this order from the rear to the front in the transport direction, and the operating temperature of the heating plate stack 112 is set to 60 to 120 degrees. The first set of rolls 111 and the second set of rolls 113 each comprise two press rolls, the set of heating plates 112 comprises two heating plates, and the intermediate product, the membrane and the pole piece are fed from back to front in the transport direction by passing between the two press rolls of the first set of rolls 111, between the two heating plates and between the two press rolls of the second set of rolls 113.
In an exemplary embodiment, the plurality of heating plate groups 112 and the plurality of feeding devices 120 can be selectively operated and stopped, and when M > N, all the heating plate groups 112 and the feeding devices 120 at the lower stage of the nth lamination unit 100 are controlled to be stopped, so that the finished cell lamination is performed N times. Of course, by selectively and reasonably operating and stopping the corresponding heating plate group 112 and the corresponding feeding device 120, cells with various lamination times can be rapidly manufactured, and the time for changing the model can be greatly shortened. And the laminating machine needs fewer preheating devices and prepressing devices, so that the manufacturing cost of the laminating machine can be effectively reduced.
In an exemplary embodiment, as shown in fig. 1, the laminator further comprises: the second cutting mechanism 300, which is located in front of the plurality of lamination units 100 at the same time in the conveying direction, is used to cut the manufactured continuous cells into individual cells (i.e., individual cells). The second cutting mechanism 300 may be a cold-cutting mechanism or a heating wire cutting mechanism, which can achieve the purpose of the present application, and the purpose of the present application is not described herein again, and all of them should fall within the protection scope of the present application.
In an exemplary embodiment, the pole piece supply device is provided as a robot capable of continuously supplying the positive pole piece or the negative pole piece.
In another exemplary embodiment, as shown in fig. 1, a pole piece supply of the 1 st lamination unit 100 includes a first pole piece strip supply mechanism 122 and a first cutting mechanism 123 located in front of the first pole piece strip supply mechanism 122 in the transport direction, a pole piece roll (e.g., a negative pole piece roll) is mounted on the first pole piece strip supply mechanism 122, the first pole piece strip supply mechanism 122 is used for conveying a first pole piece strip, the corresponding first cutting mechanism 123 is used for cutting a first pole piece on the first pole piece strip, the first pole piece strip supply of the 1 st lamination unit 100 includes 1 first pole piece strip supply mechanism 122 of the 1 st lamination unit 100, the first cutting device of the 1 st lamination unit 100 includes 1 first cutting mechanism of the 1 st lamination unit 100, and n is an integer not less than 0. Two pole piece supply devices of the 2n +3 th lamination unit 100, each of which includes a first pole piece tape supply mechanism 122 and a first cutting mechanism 123 located in front of the first pole piece tape supply mechanism 122 in the conveying direction, a pole piece roll (e.g., a negative pole piece roll) is mounted on the first pole piece tape supply mechanism 122, the first pole piece tape supply mechanism 122 is used for conveying a first pole piece tape, the corresponding first cutting mechanism 123 is used for cutting a first pole piece on the first pole piece tape, the first pole piece tape supply device of the 2n +3 th lamination unit 100 includes two first pole piece tape supply mechanisms 122 of the 2n +3 th lamination unit 100, the first cutting device of the 2n +3 th lamination unit 100 includes two first cutting mechanisms of the 2n +3 th lamination unit 100, n is an integer not less than 0. Two pole piece supplies of the 2n +2 th lamination unit 100, each including a second pole piece tape supply 124 and a first cutting mechanism 123 located in front of the second pole piece tape supply 124 in the transport direction, another pole piece roll (e.g., a positive pole piece roll) being mounted on the second pole piece tape supply 124, the second pole piece strip supply mechanism 124 is used for conveying a second pole piece strip, the corresponding first cutting mechanism 123 is used for cutting a second pole piece on the second pole piece strip, the second pole piece strip supply device of the 2n +2 lamination unit 100 comprises two second pole piece strip supply mechanisms 124 of the 2n +2 lamination unit 100, n is an integer not less than 0, the first cutting device of the 2n +2 lamination unit 100 comprises two first cutting mechanisms of the 2n +2 lamination unit 100, and n is an integer not less than 0.
Illustratively, the first cutting mechanism 123 may be a cutter cutting mechanism and an equivalent thereof.
Example two
The lamination method (not shown in the figure) provided by the embodiment of the invention is applied to the lamination machine described in any embodiment; the method comprises the following steps: diaphragm and pole piece are all supplied forward continuously to the first feeding device 120 to the Nth feeding device 120, the pole piece and the diaphragm supplied by the first feeding device 120 are subjected to thermal compounding by the first thermal compounding device 110, the pole piece and the diaphragm are compounded again on the side surface of an intermediate product output by the thermal compounding device 110 of the next stage, and finally, an electric core (manufactured into an electric core string) of the lamination N times is continuously manufactured, wherein M is more than or equal to N.
According to the lamination method, diaphragms and pole pieces are continuously supplied forwards from a first feeding device 120 to an Nth (M is larger than or equal to N) feeding device 120, the first thermal compounding device 110 sequentially thermally compounds the pole pieces and the diaphragms continuously supplied by the first feeding device 120, the next-stage thermal compounding device compounds the pole pieces and the diaphragms on the side faces of intermediate products output by the previous-stage thermal compounding device 110, and finally, N times of laminated battery cores (battery core strings are manufactured) are continuously manufactured, the adjacent battery cores are connected together through the diaphragms, the manufactured continuous battery cores are cut into single battery cores (shown in figures 2 and 3), the production speed of the battery cores is increased by nearly N times, and therefore the production efficiency of the laminated battery cores is high.
The first thermal compound device 110 thermally compounds the pole pieces and the diaphragms supplied by the first feeding device 120, the thermal compound device of the next stage compounds the pole pieces and the diaphragms on the side surfaces of the intermediate products output by the thermal compound device 110 of the previous stage, and finally, the battery cell of the lamination N times is continuously manufactured, namely: after the first thermal compound device 110 thermally compounds the pole pieces and the diaphragms supplied by the first feeding device 120, the second thermal compound device compounds the pole pieces and the diaphragms on the side surfaces of the intermediate products output by the first thermal compound device 110, and … … is carried out until the nth thermal compound device compounds the pole pieces and the diaphragms on the side surfaces of the intermediate products output by the N-1 th thermal compound device 110, so that the battery cell with N-times lamination can be continuously manufactured.
In an exemplary embodiment, after the step of continuously manufacturing the laminated N-times cells, the method further includes: the cells of the continuously produced stack are cut one by one (i.e., one individual cell at a time) by the second cutting mechanism 300. The second cutting mechanism 300 may also cut a plurality of battery cells into a plurality of single cells at a time (i.e., cut a plurality of single battery cells at a time), and the purpose of the present application may also be achieved, which is not departing from the design concept of the present invention and will not be described herein again, and all of which shall fall within the protection scope of the present application.
In an exemplary embodiment, before the steps of continuously supplying the membrane and the pole piece from the first material supplying device 120 to the nth material supplying device 120, thermally compounding the pole piece and the membrane supplied from the first material supplying device 120 by the first thermal compounding device 110, and re-compounding the pole piece and the membrane on the side surface of the intermediate product output by the thermal compounding device 110 of the next stage, the method further includes: the diaphragm roll and the pole piece roll are arranged on N feeders 120 from the back to the front in the conveying direction (namely, the diaphragm roll and the pole piece roll are arranged on the first feeder 120 to the Nth feeder 120), and the pole piece rolls arranged on the two adjacent feeders 120 have opposite polarities. Of course, the diaphragm roll and the pole piece roll may be mounted on all the feeding devices 120, and those skilled in the art may make reasonable selections as needed, which is not described herein again.
In an exemplary embodiment, the membranes supplied by each membrane supply mechanism 121 are also passed through the membrane treatment mechanism 200 to improve the adhesion properties of the membranes prior to lamination so that the membranes can be better heat laminated.
In an exemplary embodiment, M is greater than N, and all of the heater plate sets 112 and the supply devices 120 of the lower stages of the nth lamination unit 100 are controlled to stop. When the number of lamination of the battery cells is increased or decreased, it is sufficient to operate or stop the corresponding heating plate set 112 and the material supply device 120 reasonably.
The lamination method (not shown in the figure) provided by the embodiment of the invention comprises the following steps:
firstly: the diaphragm rolls and the pole piece rolls are arranged on the first feeding device 120 to the Nth feeding device 120, and the polarity of the pole piece rolls arranged on the two adjacent feeding devices 120 is opposite;
secondly, the first feeding device 120 to the Nth feeding device 120 continuously supply diaphragms and pole pieces forward along the conveying direction (the diaphragms are continuously and uninterruptedly supplied, the pole pieces are continuously and intermittently supplied), the diaphragms are all improved in adhesive property through the diaphragm processing mechanism 200, the first thermal compounding device 110 conveys intermediate products formed by thermal compounding of the pole pieces and the diaphragms supplied by the first feeding device 120 to a second-stage lamination unit (namely, a second compounding unit), the second-stage thermal compounding device 110 (namely, the second thermal compounding device) compounds the pole pieces and the diaphragms on the side surfaces of the intermediate products output by the first-stage thermal compounding device 110 (namely, the second thermal compounding device), … … is carried out until the thermal recombination device 110 of the Nth level recombines the pole piece and the diaphragm on the side surface of the intermediate product output by the thermal recombination device 110 of the Nth level-1 level, thus realizing the continuous manufacture of the battery core with N times of lamination;
finally, the continuous cells are cut one by the second cutting mechanism 300 to form individual cells.
EXAMPLE III
The lamination method (not shown in the figure) provided by the embodiment of the invention is applied to the lamination machine described in any embodiment; the method comprises the following steps:
the 1 st first cutting device sequentially cuts pole pieces on the pole piece belts supplied by the 1 st pole piece belt supply device, and the 1 st thermal compounding device 110 sequentially enables the pole pieces cut by the 1 st first cutting device to be thermally compounded with the 1 st diaphragm supply device for supplying diaphragms forwards;
the N +2 th first cutting device cuts out a pole piece on the pole piece belt supplied by the N +2 th pole piece belt supply device, the N +2 th thermal compound device 110 compounds the pole piece cut out by the N +2 th first cutting device and the diaphragm supplied forward by the N +2 th diaphragm supply device on the outer diaphragm of the intermediate product output by the N +1 th thermal compound device 110, and the pole piece cut out by the N +2 th first cutting device is positioned between the diaphragm supplied forward by the N +2 th diaphragm supply device and the intermediate product output by the N +1 th thermal compound device, and finally, a continuous battery cell with N-times laminated sheets is manufactured.
The continuous electric core of the lamination N times that makes, link together through the diaphragm between the adjacent electric core, cut into each monomer electric core (as shown in fig. 2 and fig. 3) with the continuous electric core that makes again can, electric core production speed has promoted nearly N times, so the production efficiency of this technology lamination electric core is higher.
In an exemplary embodiment, in the step of thermally compounding the pole pieces cut by the 1 st first cutting device with the diaphragms fed forward by the 1 st diaphragm feeding device in sequence by the 1 st thermal compounding device, the pole pieces cut by the 1 st first cutting device are thermally compounded between two diaphragms fed forward by the 1 st diaphragm feeding device at intervals in sequence.
In an exemplary embodiment, in the step of the n +2 th thermal compounding device compounding the pole piece cut by the n +2 th first cutting device and the diaphragm fed forward by the n +2 th diaphragm feeding device on the outer diaphragm of the intermediate product output by the n +1 th thermal compounding device, and the pole piece cut by the n +2 th first cutting device is positioned between the diaphragm fed forward by the n +2 th diaphragm feeding device and the intermediate product output by the n +1 th thermal compounding device, the two pole pieces cut by the n +2 th first cutting device at a time are correspondingly thermally compounded on the two outer diaphragms of the intermediate product output by the n +1 th thermal compounding device, and the position of the two layers of diaphragms supplied forward by the (n + 2) th diaphragm supply device is correspondingly thermally compounded on the side surfaces, back to the intermediate product, of the two pole pieces cut by the (n + 2) th first cutting device, corresponding to the positions of the pole pieces in the intermediate product.
Namely: after the pole pieces cut by the 1 st first cutting device are thermally compounded between the two side diaphragms supplied forward by the 1 st diaphragm supply device through the 1 st thermal compounding device 110, the two pole pieces cut by the 2 nd first cutting device and the two layers of diaphragms supplied forward by the 2 nd diaphragm supply device are respectively compounded on the two outer diaphragms of the intermediate product output by the 1 st thermal compounding device 110 through the 2 nd thermal compounding device, the two pole pieces cut by the 3 rd first cutting device and the two layers of diaphragms supplied forward by the 3 rd diaphragm supply device are respectively compounded on the two outer diaphragms of the intermediate product output by the 2 nd thermal compounding device 110 through the 3 rd thermal compounding device, and thus … … is carried out, and the continuous electric core with N-times of lamination is finally manufactured.
In an exemplary embodiment, in the step of the n +2 th thermal compound device compounding the pole piece cut by the n +2 th first cutting device and the diaphragm fed forward by the n +2 th diaphragm feeding device on the outer diaphragm of the intermediate product output by the n +1 th thermal compound device, and the pole piece cut by the n +2 th first cutting device is positioned between the diaphragm fed forward by the n +2 th diaphragm feeding device and the intermediate product output by the n +1 th thermal compound device, one pole piece cut by the n +2 th first cutting device at a time is thermally compounded on the outer diaphragm of the first side of the intermediate product output by the n +1 th thermal compound device, and the position of the pole piece corresponds to that of the middle product, and the diaphragm supplied forward by the (n + 2) th diaphragm supply device is thermally compounded on the side surface, back to the middle product, of one pole piece cut by the (n + 2) th first cutting device.
Namely: after the pole pieces cut by the 1 st first cutting device are thermally compounded between the two side diaphragms supplied forward by the 1 st diaphragm supply device through the 1 st thermal compounding device 110, a pole piece cut by the 2 nd first cutting device and a diaphragm supplied forward by the 2 nd diaphragm supply device are compounded on the outer diaphragm on the upper side (or the lower side) of the intermediate product output by the 1 st thermal compounding device 110 through the 2 nd thermal compounding device, a pole piece cut by the 3 rd first cutting device and a diaphragm supplied forward by the 3 rd diaphragm supply device are respectively compounded on the outer diaphragm on the upper side (or the lower side) of the intermediate product output by the 2 nd thermal compounding device 110 through the 3 rd thermal compounding device, and … … is carried out in such a way, and finally, a continuous battery core with N-times of laminated sheets is manufactured.
In an exemplary embodiment, after the step of manufacturing N consecutive cells of the laminate, the method further includes: the resulting N-times continuous cells of the stack are cut into individual cells (i.e., one individual cell at a time) by the second cutting mechanism 300. The second cutting mechanism 300 may also cut a plurality of battery cells into a plurality of single cells at a time (i.e., cut a plurality of single battery cells at a time), and the purpose of the present application may also be achieved, which is not departing from the design concept of the present invention and will not be described herein again, and all of which shall fall within the protection scope of the present application.
In an exemplary embodiment, before the step of the 1 st first cutting device sequentially cutting pole pieces on the pole piece belts supplied by the 1 st pole piece belt supply device, and the 1 st thermal compounding device 110 sequentially thermally compounding the pole pieces cut by the 1 st first cutting device with the 1 st diaphragm supply device to supply the diaphragms forward, the method further comprises: the 1 st to nth lamination units 100 are controlled to operate, and the heating plate groups, the first pole piece strip supply device, the second pole piece strip supply device, the first cutting device and the diaphragm supply device of the rest of the lamination units 100 are controlled to stop. Namely: when the number of lamination times of the battery cells is increased or decreased, the heating plate group, the first pole piece strip supply device, the second pole piece strip supply device, the first cutting device and the diaphragm supply device of the corresponding lamination unit 100 can be operated or stopped reasonably.
In an exemplary embodiment, the supplied membrane is provided with enhanced adhesion properties by the membrane treating mechanism 200 prior to thermal compounding. The membrane treating mechanism 200 may treat the entire membrane surface, or the membrane treating mechanism 200 may treat a location where the membrane edges are not easily bonded.
In summary, in the lamination machine provided in the embodiment of the present invention, the lamination machine includes M lamination units sequentially arranged along the transmission direction, each lamination unit includes a feeding device and a thermal compound device located in front of the feeding device along the transmission direction, each feeding device includes a diaphragm supply mechanism and a pole piece supply device, the diaphragm supply mechanism is used for supplying a diaphragm, the pole piece supply device is used for supplying a pole piece, the thermal compound device is used for thermally compounding the pole piece and the diaphragm, the first feeding device to the nth (M is greater than or equal to N) feeding devices continuously supply the diaphragm and the pole piece forward, the first thermal compound device thermally compounds the pole piece and the diaphragm supplied by the first feeding device, the thermal compound device of the next stage compounds the pole piece and the diaphragm on the side of the intermediate product output by the thermal compound device of the previous stage, finally, the battery cells laminated for N times are continuously manufactured, and the manufactured continuous battery cells are cut into individual cells, the production speed of the battery core is improved by nearly N times, so that the production efficiency of the laminated battery core is higher.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" structure ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the structures referred to have specific orientations, are configured and operated in specific orientations, and thus, are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through 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.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. A lamination machine, characterized in that it comprises a plurality of lamination units (100) arranged in succession from the rear to the front, each lamination unit (100) comprising:
the pole piece belt supply device is used for supplying a pole piece belt forwards, the pole piece belt is a first pole piece belt or a second pole piece belt, and the polarities of the first pole piece belt and the second pole piece belt are opposite;
the first cutting device is arranged corresponding to the pole piece belt supply device and is used for sequentially cutting pole pieces on the pole piece belt supplied forwards;
the diaphragm supply device is arranged corresponding to the pole piece belt supply device and is used for supplying diaphragms forwards; and
the thermal compounding device (110) is positioned in front of the pole piece strip supply device, the first cutting device and the diaphragm supply device and is used for thermally compounding the diaphragm and the pole piece;
wherein the pole piece strip supply device of the 2n +1 th lamination unit (100) is a first pole piece strip supply device used for supplying a first pole piece strip; the pole piece strip supply device of the 2n +2 th lamination unit (100) is a second pole piece strip supply device which is used for supplying a second pole piece strip, and n is an integer not less than 0.
2. The lamination machine according to claim 1, characterized in that the 1 st lamination unit (100):
the pole piece belt supply device comprises a first pole piece belt supply mechanism (122), the first cutting device comprises a first cutting mechanism (123), the diaphragm supply device comprises two diaphragm supply mechanisms (121), the first pole piece belt supply mechanism (122) is located between the two diaphragm supply mechanisms (121), and the first cutting mechanism (123) is located in front of the first pole piece belt supply mechanism (122).
3. The lamination machine according to claim 2, characterized in that the 2n +3 th lamination unit (100):
the pole piece belt supply device comprises two first pole piece belt supply mechanisms (122), the first cutting device comprises two first cutting mechanisms (123), the diaphragm supply device comprises two diaphragm supply mechanisms (121), the two first pole piece belt supply mechanisms (122) are positioned between the two diaphragm supply mechanisms (121), and the two first cutting mechanisms (123) are positioned in front of the two first pole piece belt supply mechanisms (122) in a one-to-one correspondence manner; the 2n +2 th lamination unit (100):
the pole piece belt supply device comprises two second pole piece belt supply mechanisms (124), the first cutting device comprises two first cutting mechanisms (123), the diaphragm supply device comprises two diaphragm supply mechanisms (121), the two second pole piece belt supply mechanisms (124) are located between the two diaphragm supply mechanisms (121), and the two first cutting mechanisms (123) are located in front of the two second pole piece belt supply mechanisms (124) in a one-to-one correspondence mode.
4. The lamination machine according to claim 2, characterized in that the 2n +3 th lamination unit (100):
the pole piece strip supply device comprises a first pole piece strip supply mechanism (122), the first cutting device comprises a first cutting mechanism (123), the diaphragm supply device comprises a diaphragm supply mechanism (121), the first pole piece strip supply mechanism (122) is positioned between the diaphragm supply mechanism (121) and the 1 st lamination unit (100), and the first cutting mechanism (123) is positioned in front of the first pole piece strip supply mechanism (122); the 2n +2 th lamination unit (100):
the pole piece tape supply comprises a second pole piece tape supply mechanism (124), the first cutting device comprises a first cutting mechanism (123), the diaphragm supply device comprises a diaphragm supply mechanism (121), the second pole piece tape supply mechanism (124) is positioned between the diaphragm supply mechanism (121) and the 1 st lamination unit (100), and the first cutting mechanism (123) is positioned in front of the second pole piece tape supply mechanism (124).
5. The lamination machine according to any one of claims 1 to 4, wherein each lamination unit (100) further comprises:
and a membrane processing device positioned in front of the membrane supply device and used for improving the adhesive property of the supplied membrane.
6. The laminator according to any one of claims 1 to 4, further comprising:
a second cutting mechanism (300) located in front of the plurality of lamination units (100) for cutting the forward conveyed continuous cells into individual cells.
7. A laminator according to any of claims 1 to 4, wherein each thermal compositing device (110) comprises a first set of rollers (111), a set of heating plates (112) and a second set of rollers (113) arranged in sequence from back to front, the set of heating plates (112) being set to an operating temperature of 60 to 120 degrees.
8. A lamination machine according to claim 7, wherein the set of heating plates (112), the first pole piece strip supply means, the second pole piece strip supply means, the first cutting means and the diaphragm supply means are selectively operable and stoppable.
9. A lamination method applied to a lamination machine according to any one of claims 1 to 8, characterized by comprising:
the 1 st first cutting device sequentially cuts pole pieces on the pole piece belts supplied by the 1 st pole piece belt supply device, and the 1 st thermal compounding device (110) sequentially thermally compounds the pole pieces cut by the 1 st first cutting device with the diaphragms supplied forwards by the 1 st diaphragm supply device;
the N +2 th first cutting device cuts out a pole piece on a pole piece belt supplied by the N +2 th pole piece belt supply device, the N +2 th heat compound device (110) compounds a pole piece cut out by the N +2 th first cutting device and a diaphragm supplied forward by the N +2 th diaphragm supply device on an outer diaphragm of an intermediate product output by the N +1 th heat compound device (110), and the pole piece cut out by the N +2 th first cutting device is positioned between the diaphragm supplied forward by the N +2 th diaphragm supply device and the intermediate product output by the N +1 th heat compound device (110), and finally, a continuous battery cell with N-time lamination is manufactured.
10. The lamination process according to claim 9, further comprising, after the step of forming N successive cells of the laminate, the steps of:
the resulting laminated N-times continuous cells are cut into individual cells by a second cutting mechanism (300).
11. A lamination process according to claim 9, wherein the supplied membranes are provided with adhesive properties enhanced by membrane handling means prior to thermal compounding.
12. The lamination method according to claim 9, wherein before the step of the 1 st first cutting device sequentially cutting pole pieces from the pole piece strip supplied by the 1 st pole piece strip supply device, the 1 st thermal compounding device (110) sequentially thermally compounding the pole pieces cut by the 1 st first cutting device with the diaphragm supplied by the 1 st diaphragm supply device, the lamination method further comprises:
and controlling the 1 st to Nth lamination units to run, and controlling the heating plate group (112), the first pole piece strip supply device, the second pole piece strip supply device, the first cutting device and the diaphragm supply device of the rest lamination units (100) to stop.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023184674A1 (en) * | 2022-04-02 | 2023-10-05 | 温在东 | High-speed lamination stacking machine for laminated cell, and lamination stacking method |
| WO2023221034A1 (en) * | 2022-05-15 | 2023-11-23 | 温在东 | Multi-station hot-lamination high-speed stacking machine for stacked cell and stacking method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207490030U (en) * | 2017-11-02 | 2018-06-12 | 合肥国轩高科动力能源有限公司 | A kind of efficient stacked wafer cells system of processing |
| CN207602714U (en) * | 2017-11-02 | 2018-07-10 | 合肥国轩高科动力能源有限公司 | A kind of stacked wafer cells producing device |
| CN112117494A (en) * | 2020-10-09 | 2020-12-22 | 昆山聚创新能源科技有限公司 | Laminate, lamination method and application thereof |
-
2021
- 2021-07-27 CN CN202110852179.3A patent/CN113871721A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207490030U (en) * | 2017-11-02 | 2018-06-12 | 合肥国轩高科动力能源有限公司 | A kind of efficient stacked wafer cells system of processing |
| CN207602714U (en) * | 2017-11-02 | 2018-07-10 | 合肥国轩高科动力能源有限公司 | A kind of stacked wafer cells producing device |
| CN112117494A (en) * | 2020-10-09 | 2020-12-22 | 昆山聚创新能源科技有限公司 | Laminate, lamination method and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023184674A1 (en) * | 2022-04-02 | 2023-10-05 | 温在东 | High-speed lamination stacking machine for laminated cell, and lamination stacking method |
| WO2023221034A1 (en) * | 2022-05-15 | 2023-11-23 | 温在东 | Multi-station hot-lamination high-speed stacking machine for stacked cell and stacking method |
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