CN210296536U - Battery core preparation equipment - Google Patents
Battery core preparation equipment Download PDFInfo
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- CN210296536U CN210296536U CN201921275930.2U CN201921275930U CN210296536U CN 210296536 U CN210296536 U CN 210296536U CN 201921275930 U CN201921275930 U CN 201921275930U CN 210296536 U CN210296536 U CN 210296536U
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- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 446
- 238000005520 cutting process Methods 0.000 claims abstract description 130
- 230000007547 defect Effects 0.000 claims abstract description 72
- 238000001514 detection method Methods 0.000 claims abstract description 56
- 230000002950 deficient Effects 0.000 claims abstract description 41
- 239000002699 waste material Substances 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 210000001503 joint Anatomy 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 238000011143 downstream manufacturing Methods 0.000 claims description 21
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 21
- 238000003475 lamination Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 239000002131 composite material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides an electricity core preparation equipment relates to battery production facility technical field. The battery cell preparation equipment comprises a first detection mechanism, a first driving mechanism, a first cutting mechanism, a first sheet conveying mechanism, a first waste removing mechanism and a controller. The first driving mechanism is in transmission connection with the first cutting mechanism so as to drive the first cutting mechanism to move relative to the substrate, the first cutting mechanism is used for cutting the first pole piece coiled material to form a first pole piece, and the first detection mechanism is used for detecting whether a defect exists on the first pole piece coiled material or the first pole piece. The controller is arranged to control the first cutting mechanism to move to a position where the first piece feeding mechanism is in butt joint under the condition that the first piece is not defective; and controlling the first cutting mechanism to move to a position for butting with the first rejecting mechanism under the condition that the first pole piece is defective. The battery cell preparation equipment reduces the waste of pole piece materials and improves the utilization rate of the pole piece materials.
Description
Technical Field
The utility model relates to a battery production facility technical field particularly, relates to an electricity core preparation equipment.
Background
The manufacturing method of the lithium ion battery mainly comprises a winding type and a lamination type. The lamination process mainly comprises free lamination, Z-shaped lamination, composite lamination and the like. The composite lamination is formed by laminating the cathode sheet, the diaphragm and the anode sheet in a certain sequence, heating/pressurizing and compounding. The mode of rejecting the defective pole piece in the existing composite lamination process wastes pole piece materials, and the utilization rate of the pole piece materials is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electricity core preparation equipment, its pole piece that can will have the defect before pole piece and diaphragm are compound rejects to reduce the waste of pole piece material, improve the utilization ratio of pole piece material.
The embodiment of the utility model discloses a can realize like this:
the embodiment of the utility model provides a battery cell preparation device, which comprises a substrate, a first detection mechanism, a first driving mechanism, a first cutting mechanism, a first piece conveying mechanism, a first waste removing mechanism and a controller, wherein the first detection mechanism, the first driving mechanism, the first cutting mechanism, the first piece conveying mechanism, the first waste removing mechanism and the controller are arranged on the substrate;
first detection mechanism, first actuating mechanism are connected with the controller electricity respectively, and first actuating mechanism is connected with first mechanism's transmission of cutting and removes for the base plate in order to drive first mechanism of cutting, and first mechanism of cutting is used for cutting first pole piece coil stock and forms first pole piece and downstream conveying first pole piece, and first detection mechanism is used for detecting whether there is the defect on first pole piece coil stock or the first pole piece, and the controller is set up to:
judging whether the first pole piece has defects or not according to the detection result of the first detection mechanism;
under the condition that the first pole piece has no defects, the first cutting mechanism is controlled to move to a position where the first cutting mechanism is in butt joint with the first piece feeding mechanism, so that the first pole piece is fed to the first piece feeding mechanism;
and under the condition that the first pole piece is defective, controlling the first cutting mechanism to move to a position in butt joint with the first waste removing mechanism so as to send the first pole piece to the first waste removing mechanism.
In an alternative embodiment, the first cutting mechanism is rotationally coupled to the substrate and the first drive mechanism is configured to drive the first cutting mechanism to rotate relative to the substrate.
In an alternative embodiment, in the conveying direction of the first pole piece roll, the first detecting mechanism is arranged upstream of the first cutting mechanism to detect whether the first pole piece roll has a defect, and the controller is configured to:
and judging whether the first pole piece has defects or not according to the detection result of the first detection mechanism, the conveying speed of the first cutting mechanism and the path length between the detection position of the first detection mechanism and the discharge position of the first cutting mechanism.
In an alternative embodiment, the first reject mechanism comprises a reject belt assembly for transporting the first pole piece having the defect.
In an alternative embodiment, the first sheet feeding mechanism comprises a sheet feeding belt assembly for conveying the first pole piece without defects.
In an optional embodiment, the battery cell preparation apparatus includes a second detection mechanism, a second driving mechanism, a second cutting mechanism, and a second sheet feeding mechanism, which are disposed on the substrate; the second sheet conveying mechanism and the first sheet conveying mechanism are both connected to the downstream processing mechanism;
the second detection mechanism and the second driving mechanism are respectively electrically connected with the controller, the second driving mechanism is in transmission connection with the second cutting mechanism so as to drive the second cutting mechanism to move relative to the substrate, the second cutting mechanism is used for cutting a second pole piece coil to form a second pole piece and conveying the second pole piece downstream, and the second detection mechanism is used for detecting whether the second pole piece coil or the second pole piece has defects; the controller is configured to:
and if the second pole piece is not defective, the second cutting mechanism is controlled to rotate to a position butted with the second piece feeding mechanism so as to feed the second pole piece to the second piece feeding mechanism.
In an alternative embodiment, the cell preparation apparatus includes a second reject mechanism, and the controller is configured to:
under the condition that the first pole piece is not defective, if the second pole piece is defective, the second cutting mechanism is controlled to rotate to a position in butt joint with the second waste removing mechanism so as to send the second pole piece to the second waste removing mechanism.
In an alternative embodiment, the downstream processing mechanism comprises a diaphragm mechanism, the discharge end of the first sheet feeding mechanism and the discharge end of the second sheet feeding mechanism are respectively butted with the diaphragm mechanism, and the diaphragm mechanism is used for stacking diaphragms on the surfaces of the first pole piece and the second pole piece.
In an optional embodiment, the cell preparation equipment comprises a first auxiliary sheet feeding mechanism arranged between the first sheet feeding mechanism and the downstream processing mechanism, and the first auxiliary sheet feeding mechanism is used for delivering the first pole piece output by the first sheet feeding mechanism to the downstream processing mechanism.
In an optional embodiment, the cell preparation apparatus includes a second auxiliary sheet feeding mechanism disposed between the second sheet feeding mechanism and the downstream processing mechanism, and the second auxiliary sheet feeding mechanism is configured to send the second pole piece output by the second sheet feeding mechanism to the downstream processing mechanism.
The utility model discloses beneficial effect includes:
the battery cell preparation equipment comprises a substrate, and a first detection mechanism, a first driving mechanism, a first cutting mechanism, a first sheet conveying mechanism, a first waste removing mechanism and a controller which are arranged on the substrate. The first detection mechanism and the first driving mechanism are respectively electrically connected with the controller, the first driving mechanism is in transmission connection with the first cutting mechanism so as to drive the first cutting mechanism to move relative to the substrate, the first cutting mechanism is used for cutting the first pole piece coil stock to form a first pole piece and conveying the first pole piece downstream, and the first detection mechanism is used for detecting whether a defect exists on the first pole piece coil stock or the first pole piece. The controller is configured to: judging whether the first pole piece has defects or not according to the detection result of the first detection mechanism; under the condition that the first pole piece has no defects, the first cutting mechanism is controlled to move to a position where the first cutting mechanism is in butt joint with the first piece feeding mechanism, so that the first pole piece is fed to the first piece feeding mechanism; and under the condition that the first pole piece is defective, controlling the first cutting mechanism to move to a position in butt joint with the first waste removing mechanism so as to send the first pole piece to the first waste removing mechanism. The battery cell preparation equipment is provided with the first cutting mechanism which can move relative to the substrate to selectively butt the first sheet feeding mechanism and the first waste removing mechanism, and under the condition that the first sheet pole has no defect, the first cutting mechanism is controlled to move to a position where the first sheet feeding mechanism is butted, so that the first sheet pole is fed to the first sheet feeding mechanism and then conveyed to the downstream processing mechanism for normal processing production; and under the condition that the first pole piece is defective, controlling the first cutting mechanism to move to a position in butt joint with the first waste removing mechanism so as to send the first pole piece to the first waste removing mechanism, and further timely removing the defective first pole piece from the normal production line. Therefore, in the preparation process of the battery cell, the pole piece with the defect is removed before being compounded with the diaphragm, and compared with the traditional waste removing mode of directly removing the lamination unit containing the pole piece with the defect or the whole battery cell, the waste of pole piece materials is effectively reduced, and the utilization rate of the pole piece materials is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a battery cell preparation apparatus in an embodiment of the present invention, when a first set of mechanism normally feeds a cell;
FIG. 2 is an enlarged view of the portion A of FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a first sheet feeding mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a first reject mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of the electrical core preparation equipment in the embodiment of the present invention when the first set of mechanism rejects the defective pole piece;
fig. 6 is a schematic structural diagram of an electrical core preparation apparatus in an embodiment of the present invention, when the second set of mechanism normally feeds sheets.
Icon: 100-cell preparation equipment; 110-a substrate; 120-a first detection mechanism; 140-a first cutting mechanism; 142-a mounting plate; 143-upper material receiving plate; 144-a receiving plate assembly; 145-lower flitch; 146-a cutter assembly; 147-a fixed cutter; 148-a movable cutter; 149-discharge position; 160-a first sheet feeding mechanism; 163-first sheet feeding belt; 164-a second sheet feed belt; 165-feeding a compressing wheel; 170-a first reject mechanism; 173-first reject belt; 174-second reject belt; 175-rejecting pinch roller; 190-first pole piece coil stock; 192-a first auxiliary sheet-feeding mechanism; 220-a second detection mechanism; 240-a second cutting mechanism; 260-a second sheet feeding mechanism; 270-a second reject mechanism; 280-a diaphragm mechanism; 290-second pole piece roll stock; 292-second auxiliary sheet-feeding mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to 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, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Defects such as air holes, foreign body shrinkage holes, exposed foils, uneven coating thickness and the like can be generated in the pole piece in the early production process, and potential safety hazards exist in the performance of the battery due to the defective pole piece. The existing composite lamination process mainly comprises two modes, one mode is to remove a lamination unit containing a defective pole piece and consisting of a cathode piece, a diaphragm and an anode piece, and the other mode is to completely remove a battery cell containing the defective pole piece. The presence of a defective pole piece is incidental. The lamination units containing the defective pole pieces are divided into three types: only the cathode piece is a defective pole piece, only the anode piece is a defective pole piece or both the cathode piece and the anode piece are defective pole pieces. Whether the lamination unit is rejected or the whole battery core is discarded, the pole piece without the defect can be discarded as the defective pole piece, so that the waste of the pole piece material is caused, and the utilization rate of the pole piece material is reduced.
Referring to fig. 1, to solve the above problem, the present embodiment provides a battery cell manufacturing apparatus 100, which includes a substrate 110, and a first detecting mechanism 120, a first driving mechanism, a first cutting mechanism 140, a first sheet feeding mechanism 160, a first rejecting mechanism 170, and a controller disposed on the substrate 110.
The first detection mechanism 120 and the first driving mechanism are electrically connected to the controller, respectively. The first driving mechanism is in transmission connection with the first cutting mechanism 140 to drive the first cutting mechanism 140 to move relative to the substrate 110. The first cutting mechanism 140 is configured to cut the first pole piece roll 190 to form a first pole piece and convey the first pole piece downstream. The first detecting mechanism 120 is used to detect whether there is a defect on the first pole piece roll material 190 or the first pole piece. The controller is configured to:
judging whether the first pole piece has defects according to the detection result of the first detection mechanism 120;
under the condition that the first pole piece has no defects, the first cutting mechanism 140 is controlled to move to a position where the first pole piece is butted with the first piece feeding mechanism 160 so as to feed the first pole piece to the first piece feeding mechanism 160, and then the first pole piece is fed to a downstream processing mechanism to continue normal processing;
in case that the first electrode sheet is defective, the first cutting mechanism 140 is controlled to move to a position where it is abutted against the first rejecting mechanism 170 so as to transfer the first electrode sheet to the first rejecting mechanism 170, thereby rejecting the defective electrode sheet before the next process.
The substrate 110 is a vertical plate fixed in the battery cell manufacturing apparatus 100, and is used to mount and fix the first detection mechanism 120, the first driving mechanism, the first cutting mechanism 140, the first sheet feeding mechanism 160, the first reject mechanism 170, and the like.
The first detecting mechanism 120 includes a sensor and an industrial camera, and in this embodiment, the first detecting mechanism 120 is disposed upstream of the first cutting mechanism 140 in the conveying direction of the first pole piece roll 190 to detect whether the first pole piece roll 190 has a defect. When the first pole piece web 190 passes the detection position of the first detection mechanism 120 at the upstream, the sensor and the industrial camera cooperate to detect whether there is a defect on the first pole piece web 190. In other embodiments, the first detection mechanism 120 may be disposed downstream of the cutting position of the first cutting mechanism 140 to directly detect the first pole piece formed by cutting.
In the embodiment, the first cutting mechanism 140 is rotatably connected to the substrate 110, and the first driving mechanism is used for driving the first cutting mechanism 140 to rotate relative to the substrate 110 so as to interface with the first sheet feeding mechanism 160 or interface with the first rejecting mechanism 170.
Specifically, the first driving mechanism includes a direct drive motor, one end of which is mounted on the substrate 110, and the other end of which is connected to the first cutting mechanism 140.
Referring to fig. 1 and 2, the first cutting mechanism 140 includes a mounting plate 142, and a material receiving plate assembly 144 and a cutter assembly 146 disposed on the mounting plate 142. The mounting plate 142 is rotatably connected to the base plate 110 and is connected to the first driving mechanism. The receiving plate assembly 144 includes an upper receiving plate 143 and a lower receiving plate 145, and the first pole piece coil 190 from upstream passes between the upper receiving plate 143 and the lower receiving plate 145 to be conveyed to the cutter assembly 146. The cutter assembly 146 includes a fixed cutter 147 and a movable cutter 148, the movable cutter 148 being movable toward the fixed cutter 147 to cut the first pole piece web 190 to form a first pole piece of equal length and to deliver the first pole piece downstream from the outfeed location 149. In other embodiments, the first cutting mechanism 140 may also move relative to the substrate 110 in other manners, such as a combination of translation and rotation, and may be designed according to the actual installation environment and the actual requirements, so long as the first cutting mechanism 140 can be butted against the first feeding mechanism 160 and the first rejecting mechanism 170 after making corresponding movement.
Referring to fig. 3, in the present embodiment, the first sheet feeding mechanism 160 includes a sheet feeding belt assembly for conveying the first pole piece without defects. Specifically, the sheet feeding belt assembly comprises a first sheet feeding belt 163 and a second sheet feeding belt 164, the rotation directions of the first sheet feeding belt 163 and the second sheet feeding belt 164 are opposite, and when the first cutting mechanism 140 is abutted to the first sheet feeding mechanism 160, the first sheet from the first cutting mechanism 140 can be clamped by the first sheet feeding belt 163 and the second sheet feeding belt 164. A sheet feeding pinch roller 165 is arranged on the first sheet feeding belt 163, and the sheet feeding pinch roller 165 is used for pressing the first sheet feeding belt 163 and the first sheet pole to increase the conveying force when the first sheet pole is located between the first sheet feeding belt 163 and the second sheet feeding belt 164. It is understood that in other embodiments, the first sheet feeding mechanism 160 may take other forms, such as a robotic arm for handling, etc., only to meet production requirements.
Referring to fig. 4, in the present embodiment, the first reject mechanism 170 is similar to the first sheet feeding mechanism 160. The first reject mechanism 170 includes a reject belt assembly for transporting the first pole piece having defects. Specifically, the first waste removing mechanism 170 includes a first waste removing belt 173 and a second waste removing belt 174, and the first waste removing belt 173 and the second waste removing belt 174 rotate in opposite directions, so that when the first cutting mechanism 140 is abutted to the first waste removing mechanism 170, the first pole piece from the first cutting mechanism 140 can be pinched by the first waste removing belt 173 and the second waste removing belt 174. The second rejecting belt 174 is provided with a rejecting pinch roller 175, and the rejecting pinch roller 175 is used for compressing the second rejecting belt 174 and the first pole piece when the first pole piece is positioned between the first rejecting belt 173 and the second rejecting belt 174 to increase the transmission force. In addition, the conveying direction of the first rejecting mechanism 170 is different from the conveying direction of the first sheet conveying mechanism 160, so that the first pole piece with the defect is rejected from the normal production line in time, and the first pole piece is prevented from entering a downstream processing mechanism. In other embodiments, the first rejecting mechanism 170 may be configured in other manners, such as being carried by a robot arm or being directly configured to receive the defective first pole piece from the first cutting mechanism 140, and the like, and only needs to be configured according to actual needs.
The controller may be PC controlled. The controller is configured to determine whether the first pole piece has a defect based on the detection result of the first detection mechanism 120, the conveying speed of the first cutting mechanism 140, and the path length between the detection position of the first detection mechanism 120 and the discharge position 149 of the first cutting mechanism 140. Specifically, in this embodiment, the first detecting mechanism 120 is disposed upstream of the first cutting mechanism 140 to detect whether there is a defect on the first pole piece roll 190, the conveying speed of the first cutting mechanism 140 and the path length between the detecting position of the first detecting mechanism 120 and the discharging position 149 of the first cutting mechanism 140 are fixed, and the controller can process the first conveying time spent by the defect on the first pole piece roll 190 from the detecting position of the first detecting mechanism 120 to the discharging position 149 of the first cutting mechanism 140 according to the conveying speed and the path length, so that the first conveying time is also fixed, and therefore, once the upstream first detecting mechanism 120 detects that there is a defect on the first pole piece roll 190, the controller can control the first cutting mechanism 140 to rotate to the position where the waste-removing belt assembly is abutted before the first conveying time. In addition, because the length of the first pole piece is fixed and the second conveying time of the single first pole piece is also fixed in the normal production, it can be determined that there is a defect on the first pole piece to be sent out according to the first conveying time and the second conveying time, the controller is configured to control the mounting plate 142 of the first cutting mechanism 140 to rotate to drive the whole first cutting mechanism 140 to rotate to the position where the discharging position 149 of the first cutting mechanism 170 is butted with the first rejecting mechanism 140 when the first pole piece without defect (another first pole piece located at the downstream of the first pole piece with defect) has been sent out to the first pole piece conveying mechanism 160 and the first pole piece with defect has not been sent out from the discharging position 149 of the first cutting mechanism 140, and then the first pole piece with defect is sent out to the first rejecting mechanism 170. In other embodiments, if the first detecting mechanism 120 is disposed downstream of the cutting position to directly detect the first pole piece formed by cutting, the first detecting mechanism 120 detects which first pole piece has a defect, that is, before the first pole piece with the defect is sent out of the discharging position 149 of the first cutting mechanism 140, the first cutting mechanism 140 rotates to a position where it is abutted against the first rejecting mechanism 170 under the control of the first driving mechanism by the controller, and then the first pole piece with the defect is sent out to the first rejecting mechanism 170.
The first detection mechanism 120, the first driving mechanism, the first cutting mechanism 140, the first sheet feeding mechanism 160, the first waste removing mechanism 170 and the controller form a first set of mechanism, and the mechanisms cooperate with each other to remove the defective pole pieces in the cell preparation production line in time. In order to further improve the production efficiency of the whole battery cell preparation device 100, in this embodiment, another set of corresponding mechanism is provided in the battery cell preparation device 100 as a replacement, and when the first set of mechanism performs the reject action, the second set of mechanism can perform the normal sheet feeding action, so as to ensure the continuity of the normal production.
Specifically, the battery cell preparation apparatus 100 includes a second detection mechanism 220, a second driving mechanism, a second cutting mechanism 240, and a second sheet feeding mechanism 260, which are disposed on the substrate 110. The second sheet feeding mechanism 260 and the first sheet feeding mechanism 160 are both connected to a downstream processing mechanism.
The second detecting mechanism 220 and the second driving mechanism are electrically connected to the controller, respectively, and the second driving mechanism is in transmission connection with the second cutting mechanism 240 to drive the second cutting mechanism 240 to move relative to the substrate 110. The second cutting mechanism 240 is used to cut the second pole piece web 290 into a second pole piece and transport the second pole piece downstream. The second pole piece has the same polarity as the first pole piece. The second detection mechanism 220 is used to detect whether the second pole piece web 290 or the second pole piece has defects. The controller is configured to determine whether the second pole piece has a defect if the first pole piece has a defect, and if the second pole piece has no defect, please refer to fig. 5, control the second cutting mechanism 240 to rotate to a position abutting against the second pole piece feeding mechanism 260, so as to send the second pole piece to the second pole piece feeding mechanism 260 and then to a downstream processing mechanism.
To further enable the two mechanisms to be used alternately to ensure continuous production, the battery cell manufacturing apparatus 100 includes a second reject mechanism 270. The controller is configured to control the second cutting mechanism 240 to rotate to a position where it is abutted against the second rejecting mechanism 270 to transfer the second pole piece to the second rejecting mechanism 270 if the second pole piece is defective in the case where the first pole piece is not defective. The second detection mechanism 220, the second driving mechanism, the second cutting mechanism 240, the second sheet feeding mechanism 260 and the second waste removing mechanism 270 constitute a second set of mechanism, so that any one of the first set of mechanism and the second set of mechanism can be used as a main production line, and the other one can be used as a substitute to ensure the production continuity.
In this embodiment, the second detecting mechanism 220 and the first detecting mechanism 120, the second driving mechanism and the first driving mechanism, the second cutting mechanism 240 and the first cutting mechanism 140, the second sheet feeding mechanism 260 and the first sheet feeding mechanism 160, and the second rejecting mechanism 270 and the first rejecting mechanism 170 have the same structure.
The downstream processing mechanism comprises a diaphragm mechanism 280, the discharge end of the first sheet feeding mechanism 160 and the discharge end of the second sheet feeding mechanism 260 are respectively butted with the diaphragm mechanism 280, and the diaphragm mechanism 280 is used for stacking diaphragms on the surfaces of the first pole piece and the second pole piece. In order to facilitate the transmission of the pole pieces to the diaphragm mechanism 280, a first auxiliary pole piece entering mechanism 192 is further arranged between the discharge end of the first pole piece feeding mechanism 160 and the diaphragm mechanism 280, a second auxiliary pole piece entering mechanism 292 is further arranged between the discharge end of the second pole piece feeding mechanism 260 and the diaphragm mechanism 280, and the first auxiliary pole piece entering mechanism 192 is used for receiving and sending the first pole piece from the first pole piece feeding mechanism 160 to the diaphragm mechanism 280. The second auxiliary sheet feeding mechanism 292 is used for receiving the second pole piece from the second sheet feeding mechanism 260 to the diaphragm mechanism 280. In this embodiment, the first auxiliary sheet-feeding mechanism 192 and the second auxiliary sheet-feeding mechanism 292 each include a mechanical arm, and the mechanical arm is used to send the first pole piece or the second pole piece to the diaphragm mechanism 280.
In this embodiment, the first set of mechanisms is disposed above the upper working area, and the second set of mechanisms is disposed below the lower working area. When the upper working area is a main production line, the lower working area can be used as a substitute, namely when the upper working area is used for normal film feeding, the lower working area is in standby state, and when the upper working area is used for waste removal, the lower working area is used for film feeding. Referring to fig. 6, when the lower working area is the main production line, the upper working area can be used as a substitute — when the lower working area performs normal film feeding, the upper working area is in standby, and when the lower working area performs waste removal, the upper working area performs film feeding. In the whole production process, the first set of mechanism and the second set of mechanism alternately send the piece, so that the production efficiency is improved. The straight arrows in the figure are used to illustrate the orientation of the first and second pole pieces.
The lithium ion battery process flow is generally divided into the following contents: homogenizing → coating → rolling → cutting → flaking → making electric core → filling shell → injecting liquid → forming → grading, etc. The cell preparation method based on the cell preparation apparatus 100 includes:
judging whether the first pole piece has defects according to the detection result of the first detection mechanism 120;
under the condition that the first pole piece has no defects, the first cutting mechanism 140 is controlled to move to a position where the first pole piece is butted with the first piece feeding mechanism 160 so as to feed the first pole piece to the first piece feeding mechanism 160, and then the first pole piece is fed to a downstream processing mechanism to continue normal processing;
in case that the first electrode sheet is defective, the first cutting mechanism 140 is controlled to move to a position where it is abutted against the first rejecting mechanism 170 so as to transfer the first electrode sheet to the first rejecting mechanism 170, thereby rejecting the defective electrode sheet before the next process.
Further, to ensure the production efficiency, the battery cell manufacturing apparatus 100 further includes a second detecting mechanism 220, a second driving mechanism, a second cutting mechanism 240, and a second sheet feeding mechanism 260, which are disposed on the substrate 110. The second sheet feeding mechanism 260 and the first sheet feeding mechanism 160 are both connected to a downstream processing mechanism.
The second driving mechanism is in transmission connection with the second cutting mechanism 240 to drive the second cutting mechanism 240 to move relative to the substrate 110. The second cutting mechanism 240 is used to cut the second pole piece web 290 into a second pole piece and transport the second pole piece downstream. The second detection mechanism 220 is used to detect whether the second pole piece web 290 or the second pole piece has defects. The battery cell preparation method further comprises the following steps:
if the first pole piece is defective, it is determined whether the second pole piece is defective, and if the second pole piece is not defective, the second cutting mechanism 240 is controlled to rotate to a position where it is abutted against the second pole piece feeding mechanism 260, so as to feed the second pole piece to the second pole piece feeding mechanism 260.
In addition, if the second pole piece coil 290 and the first pole piece coil 190 simultaneously detect that the defect exists, that is, the judgment results of the first pole piece and the second pole piece are both defective, the whole equipment is shut down. When the first set of mechanism (upper working area) is the main production line, if the first pole piece roll material 190 has no defect or the detection result of the first pole piece is that the first pole piece roll material has no defect, the second set of mechanism (lower working area) will be in a standby state and does not output any pole piece.
According to the cell preparation method, the pole pieces with defects are removed in time in the process from cutting to sheet making, so that unnecessary waste of materials caused by the fact that the pole pieces enter the subsequent procedures of diaphragm stacking, stacking unit manufacturing and the like is avoided.
The operation principle and the operation process of the battery cell manufacturing equipment 100 are as follows:
when the first set of mechanism (upper working area) is used as the main production line, the first detection mechanism 120 detects whether the first pole piece roll material 190 has defects or not, and then judges whether the first pole piece has defects or not.
If the first pole piece has no defect, the first cutting mechanism 140 moves to a position where it is abutted with the first piece feeding mechanism 160, so as to send the first pole piece to the first piece feeding mechanism 160, and then to a downstream processing mechanism for further normal processing. If no defect is detected, the first cutting mechanism 140 is kept in the position of abutting joint with the first sheet feeding mechanism 160, and the second set of mechanism (lower working area) is in standby under the action of the controller.
If the first pole piece has a defect, the first cutting mechanism 140 moves to a position where it is abutted against the first rejecting mechanism 170 to transfer the first pole piece to the first rejecting mechanism 170, so that the defective first pole piece is rejected from the production line before the next step of stacking the diaphragms. Meanwhile, the controller controls the second set of mechanism to operate, the second detection mechanism 220 judges whether the second pole piece has a defect, and if the second pole piece has no defect, the second cutting mechanism 240 is controlled to rotate to a position in butt joint with the second pole piece feeding mechanism 260 so as to feed the second pole piece to the second pole piece feeding mechanism 260 and further to the membrane mechanism 280 for membrane stacking, thereby effectively ensuring the production continuity and improving the production efficiency.
Thereafter, if the second pole piece is not detected as defective, the second cutting mechanism 240 will remain in the position abutting the second feeding mechanism 260, continuing to feed the second pole piece to the downstream diaphragm mechanism 280. After the defective first pole piece is removed, the controller immediately controls the first cutting mechanism 140 to move to a position where it is abutted against the first piece feeding mechanism 160, so as to prepare for the piece feeding at any time. That is, during the continuous feeding process of the second cutting mechanism 240, once the second detecting mechanism 220 determines that the second pole piece is defective, the controller will immediately control the first cutting mechanism 140 to feed the first pole piece to the first feeding mechanism 160, and at the same time control the second cutting mechanism 240 to rotate to the position where it is abutted against the second rejecting mechanism 270, so as to feed the second pole piece to the second rejecting mechanism 270 to reject the defective second pole piece. Therefore, the first set of mechanism and the second set of mechanism alternately send the sheets, and the production efficiency is improved.
It should be noted that if the second pole piece coil 290 and the first pole piece coil 190 simultaneously detect that there is a defect, that is, the judgment results of the first pole piece and the second pole piece are both defective, the whole apparatus is shut down, and the start-up production is continued after the defect is manually removed, but the probability of this situation is very small.
To sum up, the embodiment of the utility model provides a battery core preparation equipment 100 can move for base plate 110 through the setting in order to dock first piece mechanism 160 and the first mechanism 140 that cuts of first inspection rejects mechanism 170 selectively, and under the condition that first pole piece does not have the defect, the first mechanism 140 that cuts of controller control moves to the position with the butt joint of first piece mechanism 160 to thereby send first pole piece to first piece mechanism 160 and carry to low reaches processing mechanism with normal processing production. Under the condition that the first pole piece is defective, the controller controls the first cutting mechanism 140 to move to a position where the first cutting mechanism is abutted to the first rejecting mechanism 170, so as to send the first pole piece to the first rejecting mechanism 170, and further timely reject the defective first pole piece from the normal production line in the process of cutting to produce the first pole piece. Therefore, in the preparation process of the battery cell, the pole piece with the defect is removed before being compounded with the diaphragm, and compared with the traditional waste removing mode of directly removing the lamination unit containing the pole piece with the defect or the whole battery cell, the waste of pole piece materials is effectively reduced, and the utilization rate of the pole piece materials is improved. Meanwhile, the second set of mechanism is arranged simultaneously, so that the second set of mechanism and the first set of mechanism are mutually supplemented and alternately send the sheets, the production continuity is effectively ensured, and the production efficiency is improved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A battery cell preparation device is characterized by comprising a substrate, a first detection mechanism, a first driving mechanism, a first cutting mechanism, a first piece conveying mechanism, a first waste removing mechanism and a controller, wherein the first detection mechanism, the first driving mechanism, the first cutting mechanism, the first piece conveying mechanism, the first waste removing mechanism and the controller are arranged on the substrate;
first detection mechanism first actuating mechanism respectively with the controller electricity is connected, first actuating mechanism with first cutting mechanism transmission is connected in order to drive first cutting mechanism for the base plate removes, first cutting mechanism is used for cutting first pole piece coil stock and forms first pole piece and conveys downstream first pole piece, first detection mechanism is used for detecting first pole piece coil stock or whether there is the defect on the first pole piece, the controller is set up to:
judging whether the first pole piece has defects or not according to the detection result of the first detection mechanism;
under the condition that the first pole piece has no defects, controlling the first cutting mechanism to move to a position where the first cutting mechanism is butted with the first piece feeding mechanism so as to feed the first pole piece to the first piece feeding mechanism;
and under the condition that the first pole piece is defective, controlling the first cutting mechanism to move to a position in butt joint with the first waste removing mechanism so as to send the first pole piece to the first waste removing mechanism.
2. The apparatus of claim 1, wherein the first cutting mechanism is rotatably coupled to the base plate, and the first driving mechanism is configured to drive the first cutting mechanism to rotate relative to the base plate.
3. The battery cell manufacturing apparatus of claim 1, wherein, in the conveying direction of the first pole piece roll, the first detecting mechanism is disposed upstream of the first cutting mechanism to detect whether the first pole piece roll has a defect, and the controller is configured to:
and judging whether the first pole piece has defects or not according to the detection result of the first detection mechanism, the conveying speed of the first cutting mechanism and the path length between the detection position of the first detection mechanism and the discharging position of the first cutting mechanism.
4. The apparatus of claim 1, wherein the first reject mechanism comprises a reject belt assembly configured to transport the first pole piece having a defect.
5. The cell preparation apparatus of claim 1, wherein the first sheet feeding mechanism comprises a sheet feeding belt assembly, and the sheet feeding belt assembly is used for conveying the first pole piece without defects.
6. The apparatus of claim 1, wherein the apparatus comprises a second detection mechanism, a second driving mechanism, a second cutting mechanism, and a second sheet feeding mechanism, which are disposed on the substrate; the second sheet feeding mechanism and the first sheet feeding mechanism are both connected to a downstream processing mechanism;
the second detection mechanism and the second driving mechanism are respectively electrically connected with the controller, the second driving mechanism is in transmission connection with the second cutting mechanism to drive the second cutting mechanism to move relative to the substrate, the second cutting mechanism is used for cutting a second pole piece coil to form a second pole piece and conveying the second pole piece downstream, and the second detection mechanism is used for detecting whether the second pole piece coil or the second pole piece has defects; the controller is configured to:
and if the second pole piece has no defects, controlling the second cutting mechanism to rotate to a position in butt joint with the second pole piece feeding mechanism so as to feed the second pole piece to the second pole piece feeding mechanism.
7. The cell preparation apparatus of claim 6, wherein the cell preparation apparatus comprises a second reject mechanism, and the controller is configured to:
and under the condition that the first pole piece has no defects, if the second pole piece has defects, controlling the second cutting mechanism to rotate to a position in butt joint with the second waste removing mechanism so as to send the second pole piece to the second waste removing mechanism.
8. The battery cell preparation apparatus of claim 6, wherein the downstream processing mechanism includes a diaphragm mechanism, a discharge end of the first sheet feeding mechanism and a discharge end of the second sheet feeding mechanism are respectively abutted against the diaphragm mechanism, and the diaphragm mechanism is configured to stack diaphragms on surfaces of the first pole piece and the second pole piece.
9. The cell preparation apparatus of claim 6, wherein the cell preparation apparatus includes a first auxiliary sheet feeding mechanism disposed between the first sheet feeding mechanism and the downstream processing mechanism, and the first auxiliary sheet feeding mechanism is configured to send the first pole piece output by the first sheet feeding mechanism to the downstream processing mechanism.
10. The cell preparation apparatus of claim 6, wherein the cell preparation apparatus includes a second auxiliary sheet feeding mechanism disposed between the second sheet feeding mechanism and the downstream processing mechanism, and the second auxiliary sheet feeding mechanism is configured to send the second pole piece output by the second sheet feeding mechanism to the downstream processing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921275930.2U CN210296536U (en) | 2019-08-02 | 2019-08-02 | Battery core preparation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921275930.2U CN210296536U (en) | 2019-08-02 | 2019-08-02 | Battery core preparation equipment |
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| CN210296536U true CN210296536U (en) | 2020-04-10 |
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| CN201921275930.2U Withdrawn - After Issue CN210296536U (en) | 2019-08-02 | 2019-08-02 | Battery core preparation equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380130A (en) * | 2019-08-02 | 2019-10-25 | 深圳吉阳智能科技有限公司 | Battery core Preparation equipment and method for making electric core |
| CN113555595A (en) * | 2021-07-23 | 2021-10-26 | 蜂巢能源科技有限公司 | Thermal lamination equipment and thermal lamination method |
| WO2023097673A1 (en) * | 2021-12-03 | 2023-06-08 | 宁德时代新能源科技股份有限公司 | Rejection control method and apparatus for battery electrode plate, and device |
-
2019
- 2019-08-02 CN CN201921275930.2U patent/CN210296536U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380130A (en) * | 2019-08-02 | 2019-10-25 | 深圳吉阳智能科技有限公司 | Battery core Preparation equipment and method for making electric core |
| CN110380130B (en) * | 2019-08-02 | 2024-02-27 | 深圳吉阳智能科技有限公司 | Battery cell preparation equipment and battery cell preparation method |
| CN113555595A (en) * | 2021-07-23 | 2021-10-26 | 蜂巢能源科技有限公司 | Thermal lamination equipment and thermal lamination method |
| WO2023097673A1 (en) * | 2021-12-03 | 2023-06-08 | 宁德时代新能源科技股份有限公司 | Rejection control method and apparatus for battery electrode plate, and device |
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