CN114583284A - Lamination equipment - Google Patents
Lamination equipment Download PDFInfo
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- CN114583284A CN114583284A CN202210220781.XA CN202210220781A CN114583284A CN 114583284 A CN114583284 A CN 114583284A CN 202210220781 A CN202210220781 A CN 202210220781A CN 114583284 A CN114583284 A CN 114583284A
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- lamination
- making mechanism
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- 238000003475 lamination Methods 0.000 title claims description 94
- 239000000463 material Substances 0.000 claims abstract description 320
- 230000007246 mechanism Effects 0.000 claims abstract description 219
- 238000005520 cutting process Methods 0.000 claims abstract description 65
- 238000013329 compounding Methods 0.000 claims description 59
- 239000012528 membrane Substances 0.000 claims description 38
- 238000007731 hot pressing Methods 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 230000006798 recombination Effects 0.000 claims 2
- 238000005215 recombination Methods 0.000 claims 2
- 238000004804 winding Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000012546 transfer Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000010405 anode material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000010406 cathode material Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000037303 wrinkles Effects 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
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Making Paper Articles (AREA)
Abstract
The invention relates to the technical field of battery manufacturing equipment, in particular to laminating equipment. According to the laminating equipment provided by the invention, the unit piece cutting device provided with the first sheet making mechanism is used for cutting the first material belt and the second material belt which move along the first preset direction to form the first unit piece, the unit piece cutting device provided with the second sheet making mechanism is used for cutting the first material belt and the second material belt which move along the second preset direction to form the second unit piece, the laminating mechanism positioned between the first sheet making mechanism and the second sheet making mechanism is arranged for sequentially laminating the second unit piece and the first unit piece to form a bare cell, the unit pieces used for manufacturing the bare cell are simultaneously conveyed to the laminating mechanism through the first sheet making mechanism and the second sheet making mechanism, and the first unit piece and the second unit piece respectively comprise at least one layer of first pole piece and one layer of second pole piece, so that the laminating efficiency for forming the bare cell is effectively improved, the working efficiency is improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of battery manufacturing equipment, in particular to laminating equipment.
Background
With the attention of people on environmental protection and resource utilization, the active development of new energy automobiles is a necessary trend of the automobile industry. The lithium ion battery is used as a key component of a new energy automobile, the production efficiency and the production cost of the lithium ion battery have important influence on the overall production efficiency and the overall cost of the automobile, in the production process of the battery, the speed of lamination directly influences the whole line productivity and the manufacturing cost of the battery, the z-shaped lamination technology is mostly adopted in the prior art, the diaphragm moves in a zigzag mode, and one electrode plate is placed on the diaphragm to realize lamination when the diaphragm is folded every time, however, the technical method is limited by the folding speed of the diaphragm and only one electrode plate can be placed when the diaphragm is folded every time, so that the lamination efficiency is difficult to be improved, and the high-efficiency production requirement cannot be met.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the lamination efficiency of the lamination device is difficult to improve in the prior art, so that the lamination device capable of improving the lamination efficiency is provided.
In order to solve the above technical problem, the present invention provides a lamination apparatus, including:
the first sheet-making mechanism comprises at least one first material belt, a second material belt and a unit piece cutting device, wherein the first material belt and the second material belt of the first sheet-making mechanism are stacked in sequence and are suitable for moving along a first preset direction, the unit piece cutting device is suitable for cutting the first material belt and the second material belt of the first sheet-making mechanism to form a first unit piece, and the linear speeds of the first material belt and the second material belt are the same;
the second sheet-making mechanism comprises at least one second material belt, a first material belt and a unit piece cutting device, wherein the second material belt of the second sheet-making mechanism is stacked with the first material belt in sequence and is suitable for moving along a second preset direction, the unit piece cutting device is suitable for cutting the second material belt and the first material belt of the second sheet-making mechanism to form a second unit piece, the second preset direction and the first preset direction are opposite, and the material belt of the second sheet-making mechanism and the material belt of the first sheet-making mechanism are at the same speed;
the lamination mechanism, set up in first film-making mechanism with between the second film-making mechanism, first die with the second die is suitable for respectively to follow first direction of predetermineeing, the second direction of predetermineeing removes to in the lamination mechanism, the lamination mechanism is suitable for stacking in proper order second die, first die.
Optionally, the first sheet-making mechanism includes two first tapes and one second tape, and one second tape is disposed between the two first tapes;
the second film-making mechanism includes two the second material area with one first material area, one first material area sets up in two between the second material area.
Optionally, the first sheet-making mechanism or the second sheet-making mechanism further includes: the diaphragm unwinding device comprises a first unwinding device, a second unwinding device and a diaphragm unwinding device, wherein the first unwinding device is suitable for emitting a first pole piece material belt, the second unwinding device is suitable for emitting a second pole piece material belt, the diaphragm unwinding device is suitable for emitting a diaphragm material belt, and the linear speed of the diaphragm unwinding device is greater than that of the first unwinding device and that of the second unwinding device.
Optionally, the first sheet making mechanism or the second sheet making mechanism further includes: the primary compounding device is arranged at the downstream of the first unwinding device and the diaphragm unwinding device and is suitable for compounding the first pole piece material belt and the diaphragm material belt to form the first material belt;
or the primary compounding device is arranged at the downstream of the second unwinding device and the diaphragm unwinding device and is suitable for compounding the second pole piece material belt and the diaphragm material belt to form the second material belt.
Optionally, the first sheet making mechanism or the second sheet making mechanism further includes: and the secondary compounding device is arranged at the downstream of the primary compounding device and is suitable for compounding the first material belt and the second material belt.
Optionally, the first sheet making mechanism or the second sheet making mechanism further includes: and the tertiary compounding device is arranged at the downstream of the primary compounding device and is suitable for compounding two first material belts and one second material belt, or is suitable for compounding two second material belts and one first material belt.
Optionally, the primary compounding device is a thermal compounding device.
Optionally, the lamination device further includes: the pole piece cutting device is arranged at the upstream of the primary compounding device and is suitable for cutting the first pole piece material belt to form a plurality of first pole pieces distributed at intervals;
or, the pole piece cutting device is suitable for cutting the second pole piece material belt to form a plurality of second pole pieces distributed at intervals.
Optionally, the first sheet making mechanism or the second sheet making mechanism further includes: and the hot-pressing device is arranged at the upstream of the unit piece cutting device and is suitable for hot-pressing the first material belt and the second material belt before cutting to adhere the adjacent diaphragm material belts, so that the cut first material belt and the cut second material belt form a bag-making unit piece.
Optionally, the lamination device further includes:
the first pre-positioning mechanism is arranged between the first sheet making mechanism and the sheet stacking mechanism, is provided with a detection unit and an adjusting unit and is suitable for detecting and adjusting the first unit sheet to a first preset position;
and the second pre-positioning mechanism is arranged between the second sheet making mechanism and the lamination mechanism, is provided with a detection unit and an adjustment unit, and is suitable for detecting and adjusting the second unit sheet to a second preset position.
The technical scheme of the invention has the following advantages:
1. according to the laminating equipment provided by the invention, the unit piece cutting device provided with the first film-making mechanism cuts the first material belt and the second material belt which move along the first preset direction to form the first unit piece, the unit piece cutting device provided with the second film-making mechanism cuts the first material belt and the second material belt which move along the second preset direction to form the second unit piece, the laminating mechanism arranged between the first film-making mechanism and the second film-making mechanism is arranged to sequentially stack the second unit piece and the first unit piece to form the naked cell core, the unit pieces used for manufacturing the naked cell core are simultaneously conveyed to the laminating mechanism through the first film-making mechanism and the second film-making mechanism, and the first unit piece and the second unit piece at least respectively comprise the first pole piece layer and the second pole piece layer, so that the laminating efficiency for forming the naked cell core is effectively improved, and the working efficiency is favorably improved, The production cost is reduced.
2. According to the lamination device provided by the invention, the first sheet-making mechanism comprises two first material belts and one second material belt positioned between the two first material belts, and the second sheet-making mechanism comprises two second material belts and one first material belt positioned between the two second material belts, so that the number of layers of pole pieces contained in the first unit piece and the second unit piece is further increased, and the lamination efficiency is further increased.
3. According to the lamination equipment provided by the invention, the first pole piece material belt and the diaphragm material belt are compounded by arranging the primary compounding device to form the first material belt, or the second pole piece material belt and the diaphragm material belt are compounded to form the second material belt, so that the fitting property between the first pole piece material belt and the diaphragm material belt or between the second pole piece material belt and the diaphragm material belt is increased, the stable first material belt or the stable second material belt is formed, the relative displacement of the first pole piece material belt and the diaphragm material belt in the conveying process is prevented, or the relative displacement of the second pole piece material belt and the diaphragm material belt in the conveying process is prevented, the subsequent adjustment work is reduced, and the work efficiency is improved.
4. According to the laminating equipment, the secondary compounding device is arranged to compound the first material belt and the second material belt, so that the first material belt and the second material belt are jointed to form a stable double-layer material belt, the first material belt and the second material belt are prevented from being displaced relatively in the conveying process to influence the accuracy of subsequent cutting, subsequent adjustment work is reduced, and the work efficiency is improved.
5. According to the lamination equipment provided by the invention, the three-time compounding device is arranged to compound two first material belts and one second material belt, or compound two second material belts and one first material belt, so that the three layers of material belts are jointed, a stable three-layer material belt is formed, the first material belt or the second material belt is prevented from generating relative displacement with the upstream formed double-layer material belt in the transmission process, the subsequent adjustment work is reduced, and the work efficiency is improved.
6. According to the laminating equipment provided by the invention, the pole piece cutting device is arranged to cut the first pole piece material belt to form a plurality of first pole pieces distributed at intervals or cut the second pole piece material belt to form a plurality of second pole pieces distributed at intervals, and the hot pressing device is arranged at the upstream of the unit piece cutting device to carry out hot pressing on the first material belt and the second material belt, so that hot pressing adhesion of the diaphragm material belts among the pole pieces distributed at intervals is realized, and thus a bag-making type unit piece is formed after the pole pieces are cut by the unit piece cutting device.
7. According to the lamination equipment provided by the invention, the first pre-positioning mechanism is arranged to detect and adjust the first unit piece to the first preset position, the second pre-positioning mechanism is arranged to detect and adjust the second unit piece to the second preset position, so that the offset between the first unit piece and the second unit piece and the preset position is reduced, the first unit piece and the second unit piece can be kept in an aligned state after moving to the lamination platform, the alignment of the pole pieces in the bare cell is ensured, and the qualification rate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a lamination apparatus of the present invention;
FIG. 2 is a schematic view of a first sheeting mechanism according to the present invention;
FIG. 3 is a schematic view of a second tableting mechanism according to the present invention;
FIG. 4 is a schematic structural view of a pre-positioning mechanism and a lamination mechanism according to the present invention;
FIG. 5 is a schematic diagram of a first die structure according to the present invention;
FIG. 6 is a schematic diagram of another first die structure according to the present invention;
FIG. 7 is a schematic diagram of a second die structure according to the present invention;
fig. 8 is a schematic diagram of a bare cell structure according to the present invention;
FIG. 9 is a schematic view of a first bagged die of the present invention;
fig. 10 is a schematic structural diagram of another bagged first die of the present invention;
FIG. 11 is a schematic view of a second pocket die according to the present invention;
fig. 12 is a schematic structural view of a bag-making bare cell according to the present invention.
Description of reference numerals:
1. a first sheet making mechanism; 2. a second sheet making mechanism; 31. a first pre-positioning mechanism; 32. a second pre-positioning mechanism; 33. a detection unit; 34. pre-positioning the platform; 4. a lamination mechanism; 41. a lamination platform; 51. a first unwinding device; 52. a second unwinding device; 53. a membrane unwinding device; 61. a first material belt; 611. a first pole piece material belt; 62. a second material belt; 621. a second pole piece material belt; 63. a membrane material belt; 71. a primary compounding device; 72. a secondary compounding device; 73. a third compounding device; 81. a pole piece cutting device; 82. a die cutting device; 91. a first die; 92. a second die; 101. a first pole piece; 102. a second pole piece; 103. a diaphragm.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 by those skilled in the art according to specific situations.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 12, the lamination apparatus provided in this embodiment includes:
the first sheet making mechanism 1 comprises at least one first material belt 61, a second material belt 62 and a unit piece cutting device 82, wherein the first material belt 61 and the second material belt 62 of the first sheet making mechanism 1 are sequentially stacked and are suitable for moving along a first preset direction, the unit piece cutting device 82 is suitable for cutting the first material belt 61 and the second material belt 62 of the first sheet making mechanism 1 to form a first unit piece 91, and the linear speeds of the first material belt 61 and the second material belt 62 are the same;
a second sheet-making mechanism 2, including at least one second material belt 62, a first material belt 61 and a unit piece cutting device 82, wherein the second material belt 62 and the first material belt 61 of the second sheet-making mechanism 2 are stacked in sequence and are adapted to move along a second preset direction, the unit piece cutting device 82 is adapted to cut the second material belt 62 and the first material belt 61 of the second sheet-making mechanism 2 to form a second unit piece 92, wherein the second preset direction is opposite to the first preset direction, and the material belts of the second sheet-making mechanism 2 and the material belts of the first sheet-making mechanism 1 have the same speed;
and the lamination mechanism 4 is arranged between the first sheet making mechanism 1 and the second sheet making mechanism 2, the first unit sheet 91 and the second unit sheet 92 are suitable for respectively moving to the lamination mechanism 4 along the first preset direction and the second preset direction, and the lamination mechanism 4 is suitable for sequentially stacking the second unit sheet 92 and the first unit sheet 91.
It should be noted that the first sheet making mechanism 1 and the second sheet making mechanism 2 are symmetrically disposed on two sides of the lamination mechanism 4, and the first preset direction and the second preset direction are opposite directions, so that the first unit piece 91 obtained by the first sheet making mechanism 1 and the second unit piece 92 obtained by the second sheet making mechanism 2 both move toward the lamination mechanism 4; the tapes of the second sheet-making mechanism 2 refer to a first tape 61 and a second tape 62 of the second sheet-making mechanism 2, and the tapes of the first sheet-making mechanism 1 refer to the first tape 61 and the second tape 62 of the first sheet-making mechanism 1; the moving speed values of the material belt of the second sheet-making mechanism 2 and the material belt of the first sheet-making mechanism 1 are equal and the directions are opposite; the traditional Z-shaped laminating device is limited by diaphragm tension control and manipulator carrying efficiency, the single-piece laminating time is 0.5-1 second/piece, particularly for a blade battery, the carrying weight is increased, and the diaphragm tension and wrinkles are more difficult to control; the stacking sequence of the first material belt 61 and the second material belt 62 of the first sheet-making mechanism 1 and the stacking sequence of the first material belt 61 and the second material belt 62 of the second sheet-making mechanism 2 are the same. Alternatively, the first sheet-making mechanism 1 and the second sheet-making mechanism 2 both include one first tape 61 and one second tape 62, so that the first tape 61 of the first sheet-making mechanism 1 is located below the second tape 62, and the first tape 61 of the second sheet-making mechanism 2 is located above the second tape 62, thereby ensuring that when a plurality of first unit slices 91 and a plurality of second unit slices 92 are cyclically stacked in the order of the second unit slice 92, the first unit slice 91, and the second unit slice 92 …, the pole piece vertically adjacent to the first pole piece 101 is the second pole piece 102, and similarly, the pole piece vertically adjacent to the second pole piece 102 is the first pole piece 101, where the upper and lower directions refer to "upper" and "lower" arrows in fig. 1.
Optionally, the linear speed of the first material belt 61 and the second material belt 62 is 5-50 m/min.
Optionally, the edge alignment precision of the pole pieces of the first unit piece 91 and the second unit piece 92 is 0 ± 0.1-1.0 mm, the size deviation of each edge of all the pole pieces after the pole pieces with different polarities are compounded is 0-4 mm, and the thickness of the laminated battery cell is 5-50 mm.
The lamination apparatus provided in this embodiment cuts the first tape 61 and the second tape 62 moving along the first preset direction by the die cutting device 82 of the first sheet making mechanism 1 to form the first die 91, cuts the first tape 61 and the second tape 62 moving along the second preset direction by the die cutting device 82 of the second sheet making mechanism 2 to form the second die 92, sets the lamination mechanism 4 between the first sheet making mechanism 1 and the second sheet making mechanism 2 to stack the second die 92 and the first die 91 in sequence to form the bare cell, simultaneously conveys the die for making the bare cell to the lamination mechanism 4 by the first sheet making mechanism 1 and the second sheet making mechanism 2, and the first die 91 and the second die 92 each include at least one layer of the first pole piece 101 and one layer of the second pole piece 102, thereby effectively promoted the lamination efficiency that forms naked electric core, be favorable to improving work efficiency, reduction in production cost.
Specifically, the first sheet making mechanism 1 includes two first tapes 61 and one second tape 62, and one second tape 62 is disposed between the two first tapes 61;
the second sheet making mechanism 2 includes two of the second tapes 62 and one of the first tapes 61, and one of the first tapes 61 is disposed between the two of the second tapes 62.
In addition, as shown in fig. 2, the three tapes of the first sheet making mechanism 1 are a first tape 61, a second tape 62, and a first tape 61 in sequence along the vertical direction; as shown in fig. 3, the three tapes of the second sheet-making mechanism 2 are a second tape 62, a first tape 61, and a second tape 62 sequentially along the up-down direction. By first film-making mechanism 1 or every unit piece that second film-making mechanism 2 made has at least three pole piece, lamination efficiency further obtains promoting, according to present single material area decide efficiency 200 ~ 400ppm the fastest (there is the difference in not unidimensional pole piece efficiency), the lamination equipment overall efficiency that this embodiment provided can reach 1200 ~ 2400ppm, refer to present ordinary 120 ~ 180ppm work efficiency of cutting and folding all-in-one, the lamination equipment overall efficiency that this embodiment provided can promote ten times, and cost increase is less than one time to realize that equipment quantity reduces by a wide margin, the factory building overall arrangement reduces, the cost investment reduces, energy consumption cost reduction.
The lamination device provided by this embodiment, by providing that the first sheet making mechanism 1 includes two first tapes 61 and one second tape 62 located between two first tapes 61, and the second sheet making mechanism 2 includes two second tapes 62 and one first tape 61 located between two second tapes 62, the number of layers of the pole pieces contained in the first unit piece 91 and the second unit piece 92 is further increased, thereby further increasing the lamination efficiency.
Specifically, the first sheet-making mechanism 1 or the second sheet-making mechanism 2 further includes: the device comprises a first unwinding device 51, a second unwinding device 52 and a membrane unwinding device 53, wherein the first unwinding device 51 is suitable for paying out a first pole piece material strip 611, the second unwinding device 52 is suitable for paying out a second pole piece material strip 621, and the membrane unwinding device 53 is suitable for paying out a membrane material strip 63.
It should be noted that the first unwinding device 51 and the second unwinding device 52 are polar roll unwinding devices, and the linear speed of the membrane unwinding device 53 is greater than the linear speeds of the first unwinding device 51 and the second unwinding device 52, which means that the linear speed of the membrane unwinding device 53 is slightly greater than the linear speeds of the first unwinding device 51 and the second unwinding device 52. Optionally, the linear speed of the membrane unwinding device 53 is 1 to 1.1 times of the linear speed of the first unwinding device 51 or the second unwinding device 52. It should be noted that each of the membrane unwinding devices 53 is disposed below the first unwinding device 51 or the second unwinding device 52, where the lower direction is "lower" indicated by an arrow in fig. 2 and 3; each unwinding device can be independently controlled, the starting and stopping of each unwinding device can be independently controlled according to production requirements, when the unwinding devices are started, the unwinding devices discharge the corresponding material belts, and when the unwinding devices are stopped, the unwinding devices stop discharging the corresponding material belts; when the first sheet-making mechanism 1 or the second sheet-making mechanism 2 only includes one first tape 61 and one second tape 62, the first sheet-making mechanism 1 or the second sheet-making mechanism 2 is respectively provided with one first unwinding device 51 and one second unwinding device 52, and two membrane unwinding devices 53; when first film-making mechanism 1 includes two first material belts 61 and a second material belt 62, when second film-making mechanism 2 includes two second material belts 62 and a first material belt 61, first film-making mechanism 1 is provided with two first unwinding device 51 and one second unwinding device 52, second film-making mechanism 2 is provided with two second unwinding device 52 and one first unwinding device 51 to and three diaphragm unwinding device 53.
Specifically, the first sheet-making mechanism 1 or the second sheet-making mechanism 2 further includes: a primary compounding device 71, wherein the primary compounding device 71 is disposed downstream of the first unwinding device 51 and the membrane unwinding device 53, and is adapted to compound the first pole piece material strip 611 and the membrane material strip 63 to form the first material strip 61;
alternatively, the primary combining device 71 is disposed downstream of the second unwinding device 52 and the membrane unwinding device 53, and is adapted to combine the second pole sheet material tape 621 with the membrane material tape 63 to form the second material tape 62.
It should be noted that the downstream refers to downstream in a preset direction, specifically, the downstream in the first sheet making mechanism 1 refers to downstream in the first preset direction, and the downstream in the second sheet making mechanism 2 refers to downstream in the second preset direction; the pole piece compounded by the primary compounding device 71 is bonded with the diaphragm, the pole piece and the diaphragm are not affected by the tension of the diaphragm after being bonded, and the relative displacement of the pole piece and the diaphragm is reduced, so that the stability of the first material belt 61 or the second material belt 62 is improved.
In the lamination apparatus provided in this embodiment, the primary compounding device 71 is arranged to compound the first pole piece material strip 611 and the membrane material strip 63 to form the first material strip 61, or compound the second pole piece material strip 621 and the membrane material strip 63 to form the second material strip 62, so as to increase the adhesion between the first pole piece material strip 611 and the membrane material strip 63 or between the second pole piece material strip 621 and the membrane material strip 63, and form the stable first material strip 61 or the stable second material strip 62, so as to prevent the first pole piece material strip 611 and the membrane material strip 63 from generating relative displacement in the conveying process, or prevent the second pole piece material strip 621 and the membrane material strip 63 from generating relative displacement in the conveying process, thereby reducing the subsequent adjustment work and improving the work efficiency.
Specifically, the first sheet making mechanism 1 or the second sheet making mechanism 2 further includes: a secondary compounding device 72, arranged downstream of said primary compounding device 71, adapted to compound one said first strip of material 61 with one said second strip of material 62.
Note that, the downstream of the primary lamination device 71 refers to the downstream in the first preset direction in the first sheet making mechanism 1, or the downstream in the second preset direction in the second sheet making mechanism 2; one first material area 61 and one second material area 62 process the compound back of secondary set of composite 72 the double-deck material area, double-deck material area in the first film-making mechanism 1 stacks in proper order by lower to upper for diaphragm material area, first material area, diaphragm material area, second material area, double-deck material area in the second film-making mechanism 2 stacks in proper order by lower to upper for diaphragm material area, second material area, diaphragm material area, first material area.
The lamination equipment that this embodiment provided is to one through setting up secondary set composite 72 first material area 61 with one the second material area 62 is compound, realizes first material area 61 with the laminating of second material area 62 to form stable double-deck material area, prevent first material area 61 with second material area 62 relative displacement appears in data send process and influence the accuracy of follow-up cutting, thereby reduce subsequent adjustment work, improve work efficiency. Specifically, the first sheet making mechanism 1 or the second sheet making mechanism 2 further includes: and the tertiary compounding device 73 is arranged downstream of the primary compounding device 71 and is suitable for compounding two first material belts 61 and one second material belt 62, or is suitable for compounding two second material belts 62 and one first material belt 61.
The downstream of the tertiary composite device 73 refers to the downstream in the first preset direction in the first sheet-making mechanism 1 or the downstream in the second preset direction in the second sheet-making mechanism 2.
The lamination equipment that this embodiment provided is right two through setting up cubic set composite 73 the first material area 61 with one the second material area 62 is compound, perhaps is two the second material area 62 with one the first material area 61 is compound, realizes the laminating between the three-layer material area to form stable three-layer material area, prevent first material area 61 or relative displacement appears between the transfer process in the second material area 62 and the double-layer material area that the upper reaches formed, thereby reduce subsequent adjustment work, improve work efficiency.
Optionally, the primary compounding device 71, the secondary compounding device 72, and the tertiary compounding device 73 each include two sets of press rollers disposed on upper and lower sides of the material tape, and the press rollers are adapted to roll the material tape and provide steering for the material tape. Further optionally, two sets of pressing rollers of the primary compounding device 71 are respectively disposed on the upper side of the first pole piece material strip 611 and the lower side of the membrane material strip 63, and are adapted to guide the first pole piece material strip 611 and the membrane material strip 63 to the same conveying direction and press the first pole piece material strip 611 and the membrane material strip 63 to be bonded together to form the first material strip 61, or are disposed on the upper side of the second pole piece material strip 621 and the lower side of the membrane material strip 63, and are adapted to guide the second pole piece material strip 621 and the membrane material strip 63 to the same conveying direction and press the second pole piece material strip 621 and the membrane material strip 63 to be bonded together to form the second material strip 62; the two sets of press rollers of the secondary compounding device 72 are respectively disposed on the upper side of the second material belt 62 and the lower side of the first material belt 61, or disposed on the upper side of the first material belt 61 and the lower side of the second material belt 62, and are adapted to guide the first material belt 61 and the second material belt 62 to the same conveying direction and roll the first material belt 61 and the second material belt 62, so as to form a double-layer material belt with the first material belt 61 and the second material belt 62 attached to each other; the two sets of pressing rollers of the third compounding device 73 are respectively disposed on the upper side of the first material belt 61 located above and the lower side of the first material belt 61 located below in the first sheet-making mechanism 1, or disposed on the upper side of the second material belt 62 located above and the lower side of the second material belt 62 located below in the second sheet-making mechanism 21, and are adapted to guide the three material belts to the same conveying direction and roll the three material belts to form three material belts attached to each other, where the upper and lower refer to "upper" and "lower" indicated by arrows in fig. 2 or fig. 3.
Alternatively, when the first sheet-making mechanism 1 or the second sheet-making mechanism 2 only includes one first tape 61 and one second tape 62, the first sheet-making mechanism 1 or the second sheet-making mechanism 2 only needs to be provided with the primary compounding device 71 and the secondary compounding device 72, and the tertiary compounding device 73 does not need to be provided; when the first sheet-making mechanism 1 includes two first tapes 61 and one second tape 62 or the second sheet-making mechanism 2 includes two second tapes 62 and one first tape 61, the first sheet-making mechanism 1 or the second sheet-making mechanism 2 is provided with the primary combining device 71, the secondary combining device 72, and the tertiary combining device 73.
As a modification, when the first sheet-making mechanism 1 includes two first tapes 61 and one second tape 62 or the second sheet-making mechanism 2 includes two second tapes 62 and one first tape 61, the first sheet-making mechanism 1 or the second sheet-making mechanism 2 is provided with only the primary combining device 71 and the tertiary combining device 73, and at this time, the tertiary combining device 73 is adapted to guide three spaced tapes to the same conveying direction and roll the three tapes to form three tapes attached to each other.
In particular, the primary compounding device 71 is a thermal compounding device adapted to bond the first strip of material 61 with the strip of membrane material 63, or to bond the second strip of material 62 with the strip of membrane material 63.
Optionally, the secondary compounding device 72 is a thermal compounding device.
Specifically, the lamination device further includes: the pole piece cutting device 81 is arranged at the upstream of the primary compounding device 71, and the pole piece cutting device 81 is suitable for cutting the first pole piece material belt 611 to form a plurality of first pole pieces 101 distributed at intervals;
alternatively, the pole piece cutting device 81 is adapted to cut the second pole piece material strip 621 to form a plurality of second pole pieces 102 distributed at intervals.
It should be noted that, the plurality of first pole pieces 101 are distributed at intervals, which means that the first pole pieces are distributed at intervals along the conveying direction of the first pole piece material strip 611; the plurality of second pole pieces 102 are spaced in the conveying direction of the second pole piece material tape 621. In the double-layer material belt formed by the secondary compounding device 72, the positions of the first pole piece 101 and the second pole piece 102 correspond to each other in the vertical direction; in the three-layer material belt formed by the three-time compounding device 73, the three-layer pole pieces correspond to each other in the up-down direction, wherein the up-down direction refers to the up and down direction indicated by the arrows in fig. 2 or fig. 3.
Optionally, the size precision of the pole piece obtained by cutting with the pole piece cutting device 81 is within ± 1mm of a preset value, where the preset value refers to the size of the preset pole piece, and the pole piece refers to the first pole piece 101 or the second pole piece 102.
Optionally, the first pole piece material strip 611 is an anode material strip, the second pole piece material strip 621 is a cathode material strip, and correspondingly, the first pole piece 101 is an anode piece, and the second pole piece 102 is a cathode piece; or, the first pole piece material strip 611 is a negative pole material strip, the second pole piece material strip 621 is a positive pole material strip, and correspondingly, the first pole piece 101 is a negative pole piece, and the second pole piece 102 is a positive pole piece. The size of positive plate is less than the size of negative pole piece, in the positive plate and the negative pole piece of following upper and lower direction one-to-one in the double-deck material area, the edge of positive plate all does not exceed the edge of negative pole piece, the negative pole piece surpasss positive plate 0 ~ 3 mm.
Optionally, a detection unit 33 is disposed above the double-layer material belt and adapted to detect whether the size of the negative electrode plate exceeding the positive electrode plate is qualified.
Optionally, when the first pole piece material strap 611 is an anode material strap, and the second pole piece material strap 621 is a cathode material strap, the first unwinding device 51 located above the first sheet making mechanism 1 is adapted to stop paying out the first pole piece material strap 611 according to the requirement of lamination, at this time, the unit piece formed by the first sheet making mechanism 1 is the first unit piece in the another form shown in fig. 6 or fig. 10, the unit piece at this time lacks a positive pole piece, and the uppermost layer is a diaphragm.
Further optionally, when the first pole piece tape 611 is an anode pole tape and the second pole piece tape 621 is a cathode pole tape, the stacking sequence of the stacking mechanism 4 is to stack the second unit cell 92, the first unit cell 91, the second unit cell 92, and the first unit cells 91 and … … in a circulating manner, and the uppermost layer of the stack is the first unit cell in another form as shown in fig. 6 or fig. 10; when first pole piece material area 611 is the negative pole material area, second pole piece material area 621 is the positive pole material area, the lamination order of lamination mechanism 4 is according to first cell 91, second cell 92, … …'s order circulation stack, and the superiors that stack are the second cell of another kind of form that lacks the negative pole piece of the superiors in similar figure 6 or figure 10, need guarantee promptly the top pole piece and the bottommost pole piece of the naked electric core that the lamination mechanism 4 lamination obtained are the negative pole piece, and the superiors of naked electric core are the diaphragm.
It should be noted that the uppermost of the unit chip located on the uppermost of the bare cell is a diaphragm, the first pole piece material strap 611 is an anode material strap, and the second pole piece material strap 621 is a cathode material strap for example to explain: the lamination device is provided with a counting device and a control device, the counting device is used for counting the number of the unit pieces cut by the unit piece cutting device 82, when the number of the unit pieces cut by the unit piece cutting device 82 reaches the number required by a bare cell, the control device controls the first unreeling device 51 positioned above in the first sheet making mechanism 1 to stop unreeling the first pole piece material belt 611, and the other unreeling devices still operate normally, the control device controls the first unreeling device 51 to stop operating within time t1, and just takes a distance of moving the first unit piece along the first preset direction corresponding to the material, so that the first sheet making mechanism 1 forms a first unit piece of another structural form as shown in fig. 6 or fig. 10, and the unit piece moves to the lamination mechanism 4 along the first preset direction for lamination, to form a bare cell meeting the requirement, after the operation time t1 is stopped, the first unwinding device 51 continues to operate to unwind the first pole piece tape 611, and then the first unit pieces 91 in a normal state are formed for lamination to form the next bare cell, so as to complete the cycle. As another modified embodiment, when the number of the unit pieces cut by the unit piece cutting device 82 reaches the number required by the bare cell, the control device controls all the unwinding devices in the first sheet making mechanism 1 and the two membrane unwinding devices 53 located above and in the middle to stop operating, and only the lowermost membrane unwinding device 53 is kept operating to discharge the membrane tape, at this time, the first sheet making mechanism 1 only cuts the membrane 103, and the membrane 103 moves to the lamination mechanism 4 along the first preset direction for lamination, and is stacked above the second unit piece 92, so as to form the bare cell meeting the requirement.
Specifically, the first sheet making mechanism 1 or the second sheet making mechanism 2 further includes: the hot-pressing device is arranged at the upstream of the unit piece cutting device 82 and is suitable for hot-pressing the first material belt 61 and the second material belt 62 before cutting to adhere the adjacent membrane material belts 63, so that the first material belt 61 and the second material belt 62 after cutting form a bag-making unit piece.
Optionally, the hot pressing device includes two sets of hot pressing rollers disposed on upper and lower sides of the three material belts, where the upper and lower directions refer to "upper" and "lower" as indicated by arrows in fig. 2 or fig. 3.
It should be noted that the pole pieces on the first material tape 61 or the second material tape 62 are distributed at intervals, so that a gap is formed between two adjacent pole pieces along the first preset direction or the second preset direction, the diaphragm material at the gap is continuous, and the width of the diaphragm material is greater than that of the pole pieces, so that when the hot-pressing device performs hot pressing, two adjacent layers of diaphragm materials above and below the periphery of the pole pieces are bonded, so that after being cut by the unit piece cutting device 82, the bag-making type unit pieces shown in fig. 9-11 are formed, and then the bag-making type bare cell shown in fig. 12 is formed after being laminated by the laminating mechanism 4; and because the positive plate and the negative plate have different self extension performances, the positive plate and the negative plate having opposite bending trends in the up-down direction can be formed after being rolled by the hot-pressing roller, and with the lamination device provided by this embodiment, the bending trends of the first unit piece 91 formed by the first sheet making mechanism 1 and the second unit piece 92 formed by the second sheet making mechanism 2 are opposite, and the first unit piece 91 and the second unit piece 92 are sequentially stacked on the lamination mechanism 4, so that the bending stresses are mutually offset, a flat bare cell is formed, and the integral forming of the cell into a tile shape is avoided.
Optionally, the hot pressing device and the tertiary compounding device 73 are integrated, that is, the tertiary compounding device 73 is a thermal compounding device, or the hot pressing device and the tertiary compounding device 73 are two independent devices, and the hot pressing device (not shown in the figure) is disposed between the tertiary compounding device 73 and the die cutting device 82.
As a modification, the first sheet making mechanism 1 or the second sheet making mechanism 2 is not provided with the hot press device, but performs adhesive bonding after the cutting by the unit piece cutting device 82 to bond the edges of the separators, and a bag-making type unit piece as shown in fig. 9 to 11 can also be formed.
The lamination equipment that this embodiment provided decides first pole piece material area 611 in order to form a plurality of interval distribution's first pole piece 101 or decides second pole piece material area 621 in order to form a plurality of interval distribution's second pole piece 102 through setting up pole piece cutting device 81 to it is right to set up hot press unit at the upper reaches of unit piece cutting device 82 first material area 61 with second material area 62 carries out the hot pressing, realizes that the diaphragm material area 63 between a plurality of interval distribution's the pole piece carries out the hot pressing bonding, thereby makes the process form system bag formula unit piece after unit piece cutting device 82 cuts, the structure of system bag formula can further effectively prevent that the displacement from appearing in the pole piece in the bag to the stability of reinforcing unit piece structure.
Specifically, the lamination device further includes:
a first pre-positioning mechanism 31, disposed between the first sheet-making mechanism 1 and the lamination mechanism 4, and provided with a detecting unit 33 and an adjusting unit, adapted to detect and adjust the first unit sheet 91 to a first preset position;
and the second pre-positioning mechanism 32 is arranged between the second sheet making mechanism 2 and the lamination mechanism 4, is provided with a detection unit 33 and an adjusting unit, and is suitable for detecting and adjusting the second unit sheet 92 to a second preset position.
It should be noted that the first preset position is a standard position where the first unit piece 91 needs to be placed, the second preset position is a standard position where the second unit piece 92 needs to be placed, and when the first unit piece 91 is located at the first preset position and the second unit piece 92 is located at the second preset position, the first unit piece 91 and the second unit piece 92 can smoothly enter the lamination mechanism 4 and keep alignment during lamination in the lamination mechanism 4, so that the yield of lamination is improved, the subsequent step of adjustment needed due to misalignment of the unit pieces is reduced, and further the working efficiency is improved.
Optionally, the detecting unit 33 of the first or second pre-positioning mechanism 31 or 32 is a CCD (Charge Coupled Device) camera.
Optionally, the first pre-positioning mechanism 31 and the second pre-positioning mechanism 32 are both provided with a pre-positioning platform 34, the pre-positioning platform 34 of the first pre-positioning mechanism 31 is suitable for placing the first unit piece 91, and the pre-positioning platform 34 of the second pre-positioning mechanism 32 is suitable for placing the second unit piece 92.
Further optionally, the first pre-positioning mechanism 31 and the second pre-positioning mechanism 32 each include a plurality of the pre-positioning platforms 34, and the first pre-positioning mechanism 31 or the second pre-positioning mechanism 32 can detect and adjust a plurality of dies at the same time, so that the lamination device can stack a plurality of dies at the same time.
Optionally, prepositioning platform 34 is the light-passing board, and by light is polished to the below of light-passing board, detecting element 33 detects from top to bottom first cell piece 91 or the edge profile of second cell piece 92, with first default position or the contrast is carried out to the second default position, treat behind detecting element 33 detects the offset that obtains cell piece and default position, prepositioning platform 34 carries out the translation and rotates, so that first cell piece 91 reachs first default position or makes second cell piece 92 reachs the second default position.
Optionally, the lamination device further comprises a transfer device comprising a first transfer mechanism adapted to transfer the first die 91 to the pre-positioning stage 34 of the first pre-positioning mechanism 31 or a second transfer mechanism adapted to transfer the second die 92 to the pre-positioning stage 34 of the second pre-positioning mechanism 32; the second transfer mechanism is adapted to transfer the first die 91 arriving at the first predetermined position or the second die 92 arriving at the second predetermined position onto the lamination stage 41 of the lamination mechanism 4.
Further optionally, the transfer device is a robot with a suction cup.
Optionally, a bare cell as shown in fig. 7 or fig. 12 is formed after lamination on the lamination platform 41, the bare cell is alternately arranged in sequence according to the sequence of the diaphragm, the negative pole piece, the diaphragm and the positive pole piece …, the outermost pole piece is the negative pole piece, the outermost layer is the diaphragm, and the size of the diaphragm is larger than or equal to that of the negative pole piece and larger than or equal to that of the positive pole piece (without the tab).
Optionally, the polarities of the positive plate and the negative plate can be exchanged, so that a bare cell with the outermost plate being the positive plate is obtained, and although waste of negative materials can be caused, the safety of the cell can be improved.
The lamination equipment provided by this embodiment detects and adjusts through setting up first prepositioning mechanism 31 first cell piece 91 to first default position, sets up second prepositioning mechanism 32 and detects and adjust second cell piece 92 to second default position to reduce first cell piece 91 with the offset of second cell piece 92 with the default position, thereby guarantee first cell piece 91 with second cell piece 92 can keep the alignment state after removing to lamination platform 41, guarantee the alignment of pole piece in the bare cell, improve the qualification rate.
In the same way, first film-making mechanism 1 of lamination equipment or second film-making mechanism 2 includes two each first material area 61 and two the second material area 62, the material area layer number that then forms is four layers, and in the same way, lamination equipment can also form the material area of the more number of layers to further improve lamination efficiency.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A lamination apparatus, comprising:
the first sheet-making mechanism (1) comprises at least one first material belt (61), a second material belt (62) and a unit piece cutting device (82), wherein the first material belt (61) and the second material belt (62) of the first sheet-making mechanism (1) are sequentially stacked and are suitable for moving along a first preset direction, the unit piece cutting device (82) is suitable for cutting the first material belt (61) and the second material belt (62) of the first sheet-making mechanism (1) to form a first unit piece (91), and the linear speeds of the first material belt (61) and the second material belt (62) are the same;
a second sheet-making mechanism (2) comprising at least one second material belt (62), a first material belt (61) and a unit piece cutting device (82), wherein the second material belt (62) and the first material belt (61) of the second sheet-making mechanism (2) are sequentially stacked and are suitable for moving along a second preset direction, the unit piece cutting device (82) is suitable for cutting the second material belt (62) and the first material belt (61) of the second sheet-making mechanism (2) to form a second unit piece (92), wherein the second preset direction is opposite to the first preset direction, and the material belt of the second sheet-making mechanism (2) and the material belt of the first sheet-making mechanism (1) have the same speed;
the lamination mechanism (4) is arranged between the first sheet making mechanism (1) and the second sheet making mechanism (2), the first unit sheet (91) and the second unit sheet (92) are suitable for moving to the lamination mechanism (4) along the first preset direction and the second preset direction respectively, and the lamination mechanism (4) is suitable for stacking the second unit sheet (92) and the first unit sheet (91) in sequence.
2. A lamination device according to claim 1, wherein said first sheeting means (1) comprises two said first strips (61) of material and one said second strip (62) of material, one said second strip (62) of material being arranged between two said first strips (61) of material;
the second sheet-making mechanism (2) comprises two second material belts (62) and one first material belt (61), and the one first material belt (61) is arranged between the two second material belts (62).
3. The lamination device according to claim 2, wherein the first tableting mechanism (1) or the second tableting mechanism (2) further comprises: the winding device comprises a first unwinding device (51), a second unwinding device (52) and a diaphragm unwinding device (53), wherein the first unwinding device (51) is suitable for paying off a first pole piece material belt (611), the second unwinding device (52) is suitable for paying off a second pole piece material belt (621), the diaphragm unwinding device (53) is suitable for paying off a diaphragm material belt (63), and the linear speed of the diaphragm unwinding device (53) is greater than the linear speeds of the first unwinding device (51) and the second unwinding device (52).
4. The lamination device according to claim 3, wherein the first tableting mechanism (1) or the second tableting mechanism (2) further comprises: a primary compounding device (71), wherein the primary compounding device (71) is arranged downstream of the first unwinding device (51) and the membrane unwinding device (53), and is adapted to compound the first pole piece material strip (611) and the membrane material strip (63) to form the first material strip (61);
or, the primary compounding device (71) is disposed downstream of the second unwinding device (52) and the membrane unwinding device (53), and is adapted to compound the second pole piece material tape (621) and the membrane material tape (63) to form the second material tape (62).
5. The lamination device according to claim 4, wherein the first sheet-making means (1) or the second sheet-making means (2) further comprise: -a secondary compounding device (72), arranged downstream of said primary compounding device (71), adapted to compound one of said first tapes (61) with one of said second tapes (62).
6. The lamination device according to claim 4, wherein the first tableting mechanism (1) or the second tableting mechanism (2) further comprises: -a tertiary compounding device (73), arranged downstream of said primary compounding device (71), adapted to compound two said first strips of material (61) with one said second strip of material (62), or adapted to compound two said second strips of material (62) with one said first strip of material (61).
7. Lamination device according to claim 4, characterized in that said primary recombination means (71) are thermal recombination means.
8. The lamination apparatus according to claim 4, further comprising: the pole piece cutting device (81) is arranged at the upstream of the primary compounding device (71), and the pole piece cutting device (81) is suitable for cutting the first pole piece material belt (611) to form a plurality of first pole pieces (101) distributed at intervals;
or the pole piece cutting device (81) is suitable for cutting the second pole piece material belt (621) to form a plurality of second pole pieces (102) distributed at intervals.
9. The lamination device according to claim 8, wherein the first tableting mechanism (1) or the second tableting mechanism (2) further comprises: the hot-pressing device is arranged at the upstream of the unit piece cutting device (82) and is suitable for hot-pressing the first material belt (61) and the second material belt (62) before cutting to adhere the adjacent diaphragm material belts (63), so that the cut first material belt (61) and the cut second material belt (62) form a bag-making unit piece.
10. The lamination apparatus according to any one of claims 4 to 9, further comprising:
the first pre-positioning mechanism (31) is arranged between the first sheet making mechanism (1) and the lamination mechanism (4), is provided with a detection unit (33) and an adjusting unit and is suitable for detecting and adjusting the first unit sheet (91) to a first preset position;
and the second pre-positioning mechanism (32) is arranged between the second sheet making mechanism (2) and the lamination mechanism (4), is provided with a detection unit (33) and an adjusting unit, and is suitable for detecting and adjusting the second unit sheet (92) to a second preset position.
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| CN202210220781.XA CN114583284A (en) | 2022-03-08 | 2022-03-08 | Lamination equipment |
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| CN202210220781.XA CN114583284A (en) | 2022-03-08 | 2022-03-08 | Lamination equipment |
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| CN116706256A (en) * | 2023-08-04 | 2023-09-05 | 苏州赛腾精密电子股份有限公司 | Battery pole piece lamination method |
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Application publication date: 20220603 |