CN111342107A - Thermal composite high-speed lamination machine - Google Patents
Thermal composite high-speed lamination machine Download PDFInfo
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- CN111342107A CN111342107A CN202010177026.9A CN202010177026A CN111342107A CN 111342107 A CN111342107 A CN 111342107A CN 202010177026 A CN202010177026 A CN 202010177026A CN 111342107 A CN111342107 A CN 111342107A
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- 238000003475 lamination Methods 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims description 62
- 150000001875 compounds Chemical class 0.000 claims abstract description 44
- 238000010030 laminating Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims description 112
- 238000000034 method Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 21
- 238000013329 compounding Methods 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 18
- 229920002799 BoPET Polymers 0.000 claims description 17
- 239000005041 Mylar™ Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims 8
- 230000006798 recombination Effects 0.000 claims 1
- 238000005215 recombination Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- 238000007731 hot pressing Methods 0.000 description 23
- 239000012528 membrane Substances 0.000 description 7
- 241000209140 Triticum Species 0.000 description 6
- 235000021307 Triticum Nutrition 0.000 description 6
- 238000009499 grossing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000004804 winding 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
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling 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
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- 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
- H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat 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
The invention provides a thermal compound high-speed laminating machine, which relates to the technical field of lithium battery manufacturing and comprises a supporting wallboard, a sheet making device and a laminating device, wherein the sheet making device and the laminating device are arranged on the supporting wallboard at intervals, the sheet making device is used for forming a compound pole piece, the laminating device comprises a swinging roller assembly and a folding table, the swinging roller assembly is arranged above the folding table and is used for folding and laminating the compound pole piece and forming a battery cell, and two sides of the folding table are provided with limit baffles so as to form a groove for accommodating the compound pole piece on the folding table. Due to the limiting and stopping effect of the limiting baffle, the battery core can be stopped and limited from two sides, the lamination is prevented from being loose, and therefore the lamination quality is improved.
Description
Technical Field
The invention relates to the technical field of lithium battery manufacturing, in particular to a thermal compound high-speed lamination machine.
Background
The process flow of the lithium ion battery at present is generally divided into the following contents: homogenizing → coating → rolling → cutting → flaking → making electric core → filling shell → injecting liquid → forming → grading, etc. Winding or lamination equipment is responsible for sheet production and manufacturing of battery cores, and the traditional lamination modes are various, but can be roughly divided into a single-sheet stacking mode, a zigzag folding mode and the like.
The defects of the prior art are that the pole pieces cannot be fixed because the pole pieces are in a loose state, the safety problem of the battery cell is easily caused, the lamination efficiency is very low, and the output battery cell quantity cannot keep up with the market demand.
In view of this, in order to solve the problem that electric core potential safety hazard and lamination efficiency are low, research and development a novel lamination mode, also greatly promoted lamination efficiency when can improve electric core quality is just seem to be very important.
Disclosure of Invention
The invention aims to provide a thermal compound high-speed laminating machine, which greatly improves the safety during laminating, improves the quality of a battery cell, and also greatly improves the laminating efficiency, so that the manufacturing efficiency of the battery cell is greatly improved.
The invention is realized by adopting the following technical scheme.
The invention provides a thermal composite high-speed laminating machine which comprises a supporting wallboard, a sheet making device and a laminating device, wherein the sheet making device and the laminating device are arranged on the supporting wallboard at intervals, the sheet making device is used for forming a composite pole piece, the laminating device comprises a swinging roller assembly and a folding table, the swinging roller assembly is arranged above the folding table and is used for folding and laminating the composite pole piece and forming a battery cell, and limiting baffles are arranged on two sides of the folding table so that a groove for containing the composite pole piece is formed in the folding table.
Furthermore, the swing roller assembly comprises a swing clamping roller and a feeding roller, the feeding roller is arranged above the folding table and used for conveying the composite pole pieces to the folding table, and the swing clamping roller is movably arranged between the feeding roller and the folding table and can drive the composite pole pieces to swing above two sides of the folding table so as to fold and stack the composite pole pieces.
Further, high-speed lamination machine of thermal compound still includes the frame, the hot pressing platform, get the material manipulator, unloading manipulator and conveying assembly all set up in the frame, and the hot pressing platform is close to the setting of the platform of folding paper, it sets up at the hot pressing platform and folds paper between the platform to get the material manipulator, be used for shifting to the hot pressing platform with electric core, the hot pressing platform is used for hot pressing electric core, conveying assembly is close to the setting of hot pressing platform, and unloading manipulator sets up the one side at conveying assembly, be used for shifting to conveying assembly with electric core and carry.
Furthermore, still be provided with accredited testing organization in the frame, get the material manipulator and still be used for shifting the electric core after the hot pressing to accredited testing organization and test, unloading manipulator still is used for shifting qualified electric core to conveyor assembly and carries.
Further, the film-making device is including unreeling subassembly, section subassembly and the hot composite assembly, unreels the subassembly and sets up at supporting wall board and keep away from folding paper and fold the platform setting, and the hot composite assembly is close to folding paper and fold the platform setting, and the section subassembly sets up at the hot composite assembly and unreels between the subassembly, unreels the subassembly and is used for providing pole piece and diaphragm, and the section subassembly is used for cutting the pole piece, and the hot composite assembly is used for hot composite pole piece and diaphragm and forms composite pole piece.
Furthermore, the unwinding assembly comprises a positive plate unwinding mechanism, a negative plate unwinding mechanism, a first diaphragm unwinding mechanism and a second diaphragm unwinding mechanism, wherein the positive plate unwinding mechanism and the negative plate unwinding mechanism are oppositely arranged on the upper side and the lower side of the supporting wall plate; the first diaphragm unwinding mechanism is arranged between the positive plate unwinding mechanism and the slicing assembly and used for providing a first layer of diaphragms, and the second diaphragm unwinding mechanism is arranged between the negative plate unwinding mechanism and the slicing assembly and used for providing a second layer of diaphragms.
Furthermore, the unwinding assembly further comprises a first process deviation rectifying mechanism and a second process deviation rectifying mechanism, wherein the first process deviation rectifying mechanism is arranged on a pole piece transmission path between the positive pole piece unwinding mechanism and the slicing assembly and used for rectifying deviation of the positive pole piece; the second process deviation rectifying mechanism is arranged on a pole piece transmission path between the negative pole piece unreeling mechanism and the slicing assembly and used for rectifying deviation of the negative pole piece.
Further, the section subassembly includes anodal cutter and negative pole cutter, and anodal cutter setting is on the support wallboard that is close to hot composite assembly, and the negative pole cutter setting is on the support wallboard that is close to the subassembly that unreels, and one side of anodal cutter is provided with anodal piece of rejecting useless, and one side of negative pole cutter is provided with the negative pole piece of rejecting useless.
Further, the hot composite assembly includes that first wheat draws unwinding mechanism, the unwinding mechanism is drawn to the second wheat, the roller is rolled to hot composite baking case, the feed end that the hot composite baked case was close to the section subassembly setting, be used for forming compound pole piece, first wheat draws unwinding mechanism to set up in the top that the hot composite baked case, be used for providing the wheat that covers at compound pole piece upside and draws the membrane, the second wheat draws unwinding mechanism to set up in the below that the hot composite baked case, be used for providing the wheat that covers at compound pole piece downside and draws the membrane, roll the roller setting at the discharge end of hot composite baking case, be used for hot rolling compound pole piece.
Further, the thermal compound assembly further comprises an area array camera shooting mechanism and a passive cache mechanism, the area array camera shooting mechanism is arranged on one side of the rolling roller far away from the thermal compound baking box and used for carrying out image acquisition on the compound pole piece of the moving belt, and the passive cache mechanism is arranged between the rolling roller and the swing roller assembly and used for providing tension during lamination.
The invention has the following beneficial effects:
according to the thermal composite high-speed laminating machine provided by the invention, the swing roller assembly is arranged above the folding and laminating table, the two sides of the folding and laminating table are also provided with the limiting baffle plates, and the composite pole pieces are folded and laminated through the swing roller assembly. Compared with the prior art, the thermal compound high-speed laminating machine provided by the invention has the advantages of high laminating quality and high laminating efficiency, and can greatly improve the quality of a battery core.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic overall structure diagram of a thermal composite high-speed lamination machine according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the stack of FIG. 1;
FIG. 3 is a schematic view of the lamination assembly of FIG. 2;
FIG. 4 is a schematic view of the connection structure of the unwinding assembly and the slicing assembly in FIG. 1;
FIG. 5 is a schematic view of the structure of the thermal composite assembly of FIG. 1.
Icon: 10-thermal compounding high speed lamination machine; 100-supporting wall panels; 200-a tabletting device; 210-an unwinding assembly; 211-positive plate unwinding mechanism; 213-negative pole piece unwinding mechanism; 215-a first diaphragm unwinding mechanism; 217-a second membrane unwinding mechanism; 218-a first process rectification mechanism; 219-a second process rectification mechanism; 230-a slicing assembly; 231-positive electrode cutter; 233-negative pole cutter; 235-positive electrode waste removing; 237-negative pole rejects; 239-pole piece drive belt; 250-a thermal composite assembly; 251-a first mylar unwinding mechanism; 253-a second mylar unwinding mechanism; 255-thermal compound oven; 257-roller compaction over rollers; 258-area array camera shooting mechanism; 259-passive caching mechanism; 300-a lamination device; 310-an oscillating roller assembly; 311-swinging clamping roller; 313-a feed roll; 330-a folder folding station; 350-a limit baffle; 370-a smoothing mechanism; 400-a rack; 500-hot pressing station; 600-a material taking manipulator; 700-a blanking manipulator; 800-a delivery assembly; 900-testing mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships conventionally put on the products of the present invention when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As disclosed in the background art, in the prior art, because no stopping component is provided during lamination, the lamination is loose, the stacking is easy to slip, the lamination quality is affected, and the edge alignment degree is low, so that the cell quality is affected. In order to reduce the probability of sliding of the laminated sheet when the laminated sheet is laminated, the laminated sheet needs to be slowly laminated, and the laminated sheet table slowly descends, so that the laminating efficiency is low, and the production requirement is difficult to meet.
The thermal compound high-speed laminating machine provided by the invention can efficiently and safely carry out laminating operation, and greatly improves the quality of a battery core.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
First embodiment
With reference to fig. 1 to 3, the present invention provides a thermal composite high-speed lamination machine 10, which has high lamination efficiency and high cell quality, and can effectively avoid the situation that the composite pole piece slides down.
The thermal composite high-speed laminating machine 10 provided by the embodiment comprises a supporting wall plate 100, a sheet making device 200, a laminating device 300, a rack 400, a hot pressing table 500, a material taking manipulator 600, an unloading manipulator 700 and a conveying assembly 800, wherein the sheet making device 200 and the laminating device 300 are arranged on the supporting wall plate 100 at intervals, the sheet making device 200 is used for forming composite pole pieces, the laminating device 300 comprises a swing roller assembly 310 and a folding table 330, the swing roller assembly 310 is arranged above the folding table 330 and used for folding and stacking the composite pole pieces and forming electric cores, and limit baffles 350 are arranged on two sides of the folding table 330 so as to form grooves for accommodating the composite pole pieces on the folding table 330. Hot pressing platform 500, reclaimer manipulator 600, unloading manipulator 700 and conveying component 800 all set up in frame 400, and hot pressing platform 500 is close to the setting of folding table 330, reclaimer manipulator 600 sets up between hot pressing platform 500 and folding table 330, be used for shifting electric core to hot pressing platform 500, hot pressing platform 500 is used for hot pressing electric core, conveying component 800 is close to hot pressing platform 500 and sets up, and unloading manipulator 700 sets up the one side at conveying component 800, be used for shifting electric core to conveying component 800 and carry.
In the present embodiment, the sheet-making device 200 and the stacking device 300 are disposed on the supporting wall panel 100, the supporting wall panel 100 is in a vertical placement state, and the components of the sheet-making device 200 and the stacking device 300 are spaced apart and reasonably distributed on the supporting wall panel 100, so that the components of the sheet-making device 200 and the stacking device 300 are operated in the vertical direction. And then the hot pressing platform 500 of rear end, reclaimer manipulator 600, unloading manipulator 700 and conveying component 800 set up in frame 400, combine lamination device 300 to form the lamination piece, frame 400 is in the level state of placing for hot pressing platform 500, reclaimer manipulator 600, unloading manipulator 700 and conveying component 800 all set up on the horizontal direction, reclaimer manipulator 600 and unloading manipulator 700 are used for translation electric core on the horizontal direction, conveying component 800 is used for carrying electric core on the horizontal direction.
The oscillating roller assembly 310 comprises an oscillating nip roller and a feed roller 313, the feed roller 313 is arranged above the folding table 330 and is used for conveying the composite pole piece to the folding table 330, and the oscillating nip roller is movably arranged between the feed roller 313 and the folding table 330 and can drive the composite pole piece to oscillate above two sides of the folding table 330 so as to fold and stack the composite pole piece. Specifically, the feeding roller 313 is rotatably disposed on the supporting wall plate 100, and the swinging clamping roller 311 is movably disposed on the supporting wall plate 100 and can swing in the left-right direction relative to the feeding roller 313, so as to fold and stack the composite pole pieces.
In this embodiment, fold paper and fold platform 330 top and still be provided with and smooth mechanism 370, smooth mechanism 370 including smooth roller, pivot and smooth arm, the pivot is rotated and is set up on supporting wallboard 100, and the one end and the pivot of smoothing the arm are connected, and the other end is connected with the smoothing roller, smoothes the action through the both sides of smoothing the roller to electric core, improves the wholeness degree of electric core.
It should be noted that folding and stacking the composite pole piece refers to stacking the composite pole piece in a zigzag stacking manner, and meanwhile, the positive plates on the composite pole piece are arranged on two sides of the negative plate in a staggered manner, so that the stress at the edges of the two sides can be reduced to the maximum extent during stacking, and the stacked edges of the composite pole piece are prevented from influencing the stacking quality.
It should be further noted that, in the composite pole piece in this embodiment, the upper side and the lower side of the negative pole piece are respectively covered with the first layer diaphragm and the second layer diaphragm, meanwhile, the positive pole pieces are arranged on the first layer diaphragm at intervals, the positive pole pieces are arranged on the second layer diaphragm at intervals, the positive pole pieces on the upper side and the negative side are arranged in a staggered manner, and at least one negative pole piece is arranged between every two adjacent positive pole pieces at intervals, so that the subsequent lamination is facilitated.
In this embodiment, the rack 400 is further provided with a testing mechanism 900, the material taking manipulator 600 is further configured to transfer the hot-pressed battery cell to the testing mechanism 900 for testing, and the material discharging manipulator 700 is further configured to transfer the qualified battery cell to the conveying assembly 800 for conveying. Specifically, the testing mechanism 900 includes a rubberizing tester and a short-circuit tester, the rubberizing tester is used for performing rubberizing tests on the electric core to detect the structural quality of the electric core, and the short-circuit tester is used for performing short-circuit tests on the electric core to detect the electrical performance of the electric core. For the detailed principles of the taping test and the short circuit test, reference is made to the existing test principles.
In the actual lamination process, folding and stacking the composite pole pieces through the swinging clamping roller 311, stacking the composite pole pieces in the groove of the folding table 330, and stopping the two sides of the battery cell due to the limit baffle 350, so as to prevent the composite pole pieces from sliding off. The material taking manipulator 600 takes down the folded battery cell and places the battery cell on the hot pressing platform 500 for hot pressing, after the hot pressing is completed, the material taking manipulator 600 takes out the battery cell and places the battery cell on the testing mechanism 900 for gluing and short circuit testing, and the hot pressing platform is provided with two sets, so that the efficiency is improved. If the battery cell is qualified, the battery cell is clamped and placed on the conveying assembly 800 by the discharging manipulator 700, specifically, the battery cell is conveyed to a manual material taking position by a belt, and if the battery cell is unqualified, the battery cell is placed in an NG discharging area by the discharging manipulator 700.
The sheet making device 200 comprises an unwinding assembly 210, a slicing assembly 230 and a thermal compounding assembly 250, wherein the unwinding assembly 210 is arranged on the supporting wall board 100 and is far away from the folding table 330, the thermal compounding assembly 250 is arranged close to the folding table 330, the slicing assembly 230 is arranged between the thermal compounding assembly 250 and the unwinding assembly 210, the unwinding assembly 210 is used for providing a pole piece and a diaphragm, the slicing assembly 230 is used for cutting the pole piece, and the thermal compounding assembly 250 is used for thermally compounding the pole piece and the diaphragm and forming a compounded pole piece.
Referring to fig. 4, the unwinding assembly 210 includes a positive plate unwinding mechanism 211, a negative plate unwinding mechanism 213, a first separator unwinding mechanism 215, and a second separator unwinding mechanism 217, where the positive plate unwinding mechanism 211 and the negative plate unwinding mechanism 213 are disposed at upper and lower sides of the supporting wall panel 100; the first membrane unwinding mechanism 215 is arranged between the positive plate unwinding mechanism 211 and the slicing assembly 230 and is used for providing a first layer of membranes, and the second membrane unwinding mechanism 217 is arranged between the negative plate unwinding mechanism 213 and the slicing assembly 230 and is used for providing a second layer of membranes.
In this embodiment, the positive plate unwinding mechanism 211 and the negative plate unwinding mechanism 213 are both two, wherein the upper portion of the supporting wall board 100 is provided with one positive plate unwinding mechanism 211 and one negative plate unwinding mechanism 213, the lower portion of the supporting wall board 100 is provided with one positive plate unwinding mechanism 211 and one negative plate unwinding mechanism 213, and the unwinding speed can be greatly increased through the two positive plate unwinding mechanisms 211 and the two negative plate unwinding mechanisms 213.
It should be noted that a tension control mechanism is further disposed on the discharge side of each positive plate unwinding mechanism 211 and the discharge side of each negative plate unwinding mechanism 213, and the tension control mechanism is configured to provide tension when conveying a pole piece, so as to ensure the conveying effect of the pole piece.
Further, the unwinding assembly 210 further includes a first process deviation rectifying mechanism 218 and a second process deviation rectifying mechanism 219, where the first process deviation rectifying mechanism 218 is disposed on the pole piece transmission path between the positive pole piece unwinding mechanism 211 and the slicing assembly 230, and is used for rectifying a deviation of the positive pole piece; the second process deviation rectifying mechanism 219 is disposed on the pole piece transmission path between the negative pole piece unwinding mechanism 213 and the slicing assembly 230, and is configured to rectify the deviation of the negative pole piece. In this embodiment, the number of the first process deviation rectifying mechanism 218 and the number of the second process deviation rectifying mechanism 219 are two, so that the deviation rectifying of the two positive plate unwinding mechanisms 211 and the deviation rectifying of the two negative plate unwinding mechanisms 213 can be realized, and the tape running precision is ensured.
The slicing assembly 230 comprises an anode cutter 231 and a cathode cutter 233, the anode cutter 231 is arranged on the supporting wallboard 100 close to the thermal composite assembly 250, the cathode cutter 233 is arranged on the supporting wallboard 100 close to the unreeling assembly 210, an anode rejecting piece 235 is arranged on one side of the anode cutter 231, and a cathode rejecting piece 237 is arranged on one side of the cathode cutter 233.
In this embodiment, a pole piece driving belt 239 is disposed between the positive electrode cutter 231 and the negative electrode cutter 233, and a pole piece driving belt 239 is also disposed between the positive electrode cutter 231 and the thermal composite assembly 250, and the pole pieces are driven to move by the pole piece driving belt 239.
In order to realize the efficiency of cutting the pole piece into the piece (the highest tape-moving speed is 600mm/s), an upper group of cutters and a lower group of cutters work alternately. Due to space limitation, a pole piece driving belt 239 is arranged between the negative pole cutter 233 and the positive pole cutter 231 to drive pole pieces, a group of pole piece rejecting parts are arranged on the right of each group of cutters to reject pole pieces with the problems of pole lug loss, labeling (the pole pieces with problems after laser cutting can be labeled), pole piece tearing and the like, a group of short pole piece driving belts 239 is arranged behind the positive pole cutter 231 to be butted with the thermal composite assembly 250, and the composite pole pieces passing through the cutters can enter the thermal composite assembly 250 to be composited more accurately.
Referring to fig. 5, the thermal compound assembly 250 includes a first mylar unwinding mechanism 251, a second mylar unwinding mechanism 253, a thermal compound baking box 255, a rolling roller 257, an area array camera mechanism 258 and a passive buffer mechanism 259, a feeding end of the thermal compound baking box 255 is disposed near the slicing assembly 230 for forming a compound pole piece, the first mylar unwinding mechanism 251 is disposed above the thermal compound baking box 255 for providing a mylar film covering an upper side of the compound pole piece, the second mylar unwinding mechanism 253 is disposed below the thermal compound baking box 255 for providing a mylar film covering a lower side of the compound pole piece, the rolling roller 257 is disposed at a discharging end of the thermal compound baking box 255 for thermally rolling the compound pole piece. The area array camera mechanism 258 is an area array CCD and is arranged on one side of the rolling roller 257 away from the thermal compound baking box 255 and used for acquiring images of the composite pole piece in the belt, and the passive buffer mechanism 259 is arranged between the rolling roller 257 and the swing roller assembly 310 and used for providing tension during lamination.
It should be noted that the thermal compound oven 255 works on the principle that the positive and negative electrode plates are fused with the diaphragm (the diaphragm is provided with glue) under the driving of the mylar film under the high temperature condition, and then the positive and negative electrode plates are tightly attached to the diaphragm under the rolling of the roller 257. The first mylar unwinding mechanism 251 and the second mylar unwinding mechanism 253 are arranged above and below the thermal compound baking oven 255, and tension control assemblies are arranged to control tension. In order to ensure the lamination precision, an area array CCD is arranged after the roller 257 is rolled to shoot the composite pole piece of the belt, a captured signal is sent to a deviation correcting mechanism of the unwinding assembly 210, and the deviation correcting mechanism executes related actions. The passive buffer functions to save the auxiliary time of the lamination, to perform the function of continuous feeding, and to provide tension for the lamination device 300 during lamination.
It should be further noted that, in this embodiment, because each part of the sheet making device 200 is disposed on the supporting wall plate 100, and the supporting wall plate 100 is vertically disposed, each part of the sheet making device 200 needs to be separated by a partition plate, so as to prevent the positive and negative electrode plates and the diaphragm from falling powder in the tape transport process to affect the production quality of the battery cell (the surfaces of the electrode plates are made of various composite materials such as carbon powder).
In summary, according to the thermal compound high-speed lamination machine 10 provided by this embodiment, the swing roller assembly 310 is disposed above the folding table 330, and the limit baffles 350 are further disposed on both sides of the folding table 330, so that the composite pole pieces are folded and laminated by the swing roller assembly 310, during the lamination process, due to the limit stop function of the limit baffles 350, the battery cell can be stopped and limited from both sides, and the lamination is prevented from loosening, thereby improving the lamination quality, ensuring the safety of the lamination process, and further improving the battery cell quality. In addition, through the reasonable layout among each part to the film-making device 200 for the structure is compacter, greatly reduced holistic occupation space.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a high-speed lamination machine of thermal recombination which characterized in that, includes supporting wall board, film-making device and lamination device, the film-making device with lamination device interval sets up on the supporting wall board, the film-making device is used for forming composite pole piece, the lamination device includes swing roller subassembly and folds paper and fold the platform, swing roller subassembly sets up fold the top of platform for fold paper and fold the top of platform, be used for folding paper and stack composite pole piece and form electric core, the both sides of folding paper and folding the platform are provided with limit baffle, be used for right electric core carries on spacingly, so that fold paper and form on the platform and be used for the holding the recess of electric core.
2. The thermal compounding high speed lamination machine of claim 1, wherein the swing roller assembly includes a swing nip roller and a feed roller, the feed roller is disposed above the folding table for feeding the composite pole piece to the folding table, the swing nip roller is movably disposed between the feed roller and the folding table and is capable of driving the composite pole piece to swing over both sides of the folding table for folding the composite pole piece.
3. The thermal compounding high-speed lamination machine according to claim 1, further comprising a frame, a thermal pressing table, a material taking manipulator, an unloading manipulator and a conveying assembly, wherein the thermal pressing table, the material taking manipulator, the unloading manipulator and the conveying assembly are all arranged on the frame, the thermal pressing table is close to the folding table, the material taking manipulator is arranged between the thermal pressing table and the folding table and used for transferring the battery cell to the thermal pressing table, the thermal pressing table is used for thermally pressing the battery cell, the conveying assembly is close to the thermal pressing table, and the unloading manipulator is arranged on one side of the conveying assembly and used for transferring the battery cell to the conveying assembly for conveying.
4. The thermal compounding high-speed lamination stacking machine according to claim 3, wherein a testing mechanism is further disposed on the rack, the material taking manipulator is further configured to transfer the thermally pressed battery cell to the testing mechanism for testing, and the material discharging manipulator is further configured to transfer the qualified battery cell to the conveying assembly for conveying.
5. The thermal compounding high-speed lamination machine according to claim 1, wherein the sheet-making device comprises an unwinding assembly, a slicing assembly and a thermal compounding assembly, the unwinding assembly is disposed on the supporting wall board and is disposed away from the folding table, the thermal compounding assembly is disposed close to the folding table, the slicing assembly is disposed between the thermal compounding assembly and the unwinding assembly, the unwinding assembly is used for providing a pole piece and a diaphragm, the slicing assembly is used for cutting the pole piece, and the thermal compounding assembly is used for thermally compounding the pole piece and the diaphragm and forming a compounded pole piece.
6. The thermal compound high-speed lamination stacking machine according to claim 5, wherein the unwinding assembly comprises a positive plate unwinding mechanism, a negative plate unwinding mechanism, a first diaphragm unwinding mechanism and a second diaphragm unwinding mechanism, and the positive plate unwinding mechanism and the negative plate unwinding mechanism are oppositely arranged on the upper side and the lower side of the supporting wall plate; the first diaphragm unwinding mechanism is arranged between the positive plate unwinding mechanism and the slicing assembly and used for providing a first layer of diaphragm, and the second diaphragm unwinding mechanism is arranged between the negative plate unwinding mechanism and the slicing assembly and used for providing a second layer of diaphragm.
7. The thermal compound high-speed lamination stacking machine as claimed in claim 6, wherein the unwinding assembly further comprises a first process deviation rectifying mechanism and a second process deviation rectifying mechanism, and the first process deviation rectifying mechanism is arranged on a pole piece transmission path between the positive pole piece unwinding mechanism and the slicing assembly and is used for rectifying deviation of the positive pole piece; the second process deviation rectifying mechanism is arranged on a pole piece transmission path between the negative pole piece unreeling mechanism and the slicing assembly and used for rectifying deviation of the negative pole piece.
8. The thermal composite high-speed lamination machine according to claim 5, wherein the slicing assembly comprises a positive electrode cutter and a negative electrode cutter, the positive electrode cutter is arranged on the supporting wall plate close to the thermal composite assembly, the negative electrode cutter is arranged on the supporting wall plate close to the unwinding assembly, one side of the positive electrode cutter is provided with a positive electrode waste removing piece, and one side of the negative electrode cutter is provided with a negative electrode waste removing piece.
9. The thermal compound high-speed lamination machine as claimed in claim 5, wherein the thermal compound assembly comprises a first mylar unwinding mechanism, a second mylar unwinding mechanism, a thermal compound baking box and a rolling roller, the feeding end of the thermal compound baking box is close to the slicing assembly for forming the compound pole piece, the first mylar unwinding mechanism is arranged above the thermal compound baking box for providing a mylar film covering the upper side of the compound pole piece, the second mylar unwinding mechanism is arranged below the thermal compound baking box for providing a mylar film covering the lower side of the compound pole piece, and the rolling roller is arranged at the discharging end of the thermal compound baking box for thermally rolling the compound pole piece.
10. The thermal compounding high-speed lamination stacking machine according to claim 9, wherein the thermal compounding assembly further comprises an area array camera mechanism and a passive buffer mechanism, the area array camera mechanism is arranged on the side of the laminating roller away from the thermal compounding baking box and used for carrying out image acquisition on the composite pole piece during the belt walking, and the passive buffer mechanism is arranged between the laminating roller and the oscillating roller assembly and used for providing tension during lamination.
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