CN214898531U - Battery core lamination equipment and lamination battery core - Google Patents
Battery core lamination equipment and lamination battery core Download PDFInfo
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- CN214898531U CN214898531U CN202022715241.8U CN202022715241U CN214898531U CN 214898531 U CN214898531 U CN 214898531U CN 202022715241 U CN202022715241 U CN 202022715241U CN 214898531 U CN214898531 U CN 214898531U
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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 lamination equipment and lamination electricity core, electricity core lamination equipment includes: the conveying mechanism is used for conveying the plurality of positive plates and the plurality of negative plates; the lamination manipulator is used for grabbing a positive plate and a negative plate which are positioned on the conveying mechanism and sequentially stacked on the lamination platform to form a lamination cell; the blanking manipulator is used for grabbing the laminated battery cell from the laminated platform and placing the laminated battery cell on the rubberizing platform; rubberizing mechanism. The utility model provides an electric core lamination equipment, the diaphragm has been cancelled to the electric core, the diaphragm can not appear wrinkling in the lamination process, the defective products and the potential safety hazard that the dislocation produced, can effectively improve the operating efficiency of equipment and the qualification rate of product; the positive plate and the negative plate are sequentially conveyed towards the direction of the lamination platform through the conveying mechanism, the quality hidden danger that dust falls on the edges of the multiple pole pieces is avoided, and the qualified rate of the lamination is improved.
Description
Technical Field
The utility model belongs to the technical field of the battery is made, more specifically says, relates to an electricity core lamination equipment and lamination electricity core.
Background
The production process of the square battery mainly comprises winding and laminating, and the laminated battery core is widely applied to the production of lithium batteries, nickel-hydrogen batteries and the like due to the advantages of high energy density, uniform internal structure, relatively consistent reaction rate, low internal resistance and the like. The existing lamination mode mainly adopts Z-shaped lamination, and due to the existence of the diaphragm, the diaphragm is easy to wrinkle in the lamination process, so that a battery cell can absorb lithium in the charging and discharging processes, and lithium dendrite is generated to cause safety accidents; in addition, the lamination adopts magazine material loading, and because the effect of static, the pole piece can be mutually bonded together, leads to inhaling the multi-disc, arouses the potential safety hazard easily.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide an electricity core lamination equipment and lamination electricity core to solve the lamination in-process that exists among the prior art, because the existence of diaphragm, the fold takes place easily for the diaphragm, and the lamination adopts the magazine material loading, because the effect of static, the pole piece can be in the same place each other adhesion, leads to inhaling the technical problem of multi-disc.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a cell lamination apparatus comprising:
the conveying mechanism is used for conveying the plurality of positive plates and the plurality of negative plates;
the lamination manipulator is used for grabbing the positive plate and the negative plate which are positioned on the conveying mechanism and sequentially stacked on the lamination platform to form a lamination battery cell;
the blanking manipulator is used for grabbing the laminated battery cell from the laminated platform and placing the laminated battery cell on the rubberizing platform;
and the adhesive tape sticking mechanism is used for sticking adhesive tapes on the peripheral sides of the laminated battery cell on the adhesive tape sticking platform.
By adopting the technical scheme, due to no participation of the diaphragm, defective products and potential safety hazards caused by diaphragm wrinkling and dislocation can be avoided, and the operation efficiency of equipment and the product percent of pass are greatly improved; the unreeling deviation correcting mechanism and the material box related to the diaphragm are eliminated, the equipment is simplified, the production cost is reduced, the positive plate and the negative plate are sequentially conveyed through the conveying mechanism, and the phenomenon that a plurality of pole pieces are adsorbed at one time can be avoided.
In one embodiment, the conveying mechanism comprises a first conveying belt and a second conveying belt which are arranged at intervals in parallel, the first conveying belt is used for conveying a plurality of positive pole pieces which are arranged at intervals in sequence, and the second conveying belt is used for conveying a plurality of negative pole pieces which are arranged at intervals in sequence.
By adopting the technical scheme, a material box for containing the pole pieces and a mechanical positioning mode are omitted, the positive pole pieces and the negative pole pieces are arranged at intervals, and the phenomena of one-time adsorption of a plurality of pole pieces and powder falling of the edges of the pole pieces can be avoided.
In one embodiment, the cell lamination apparatus further includes a first loading manipulator, a second loading manipulator, and a first turntable and a second turntable provided between the conveying mechanism and the lamination platform, the first turntable has a first loading station and a first unloading station, and the second turntable has a second loading station and a second unloading station; the first feeding manipulator is used for grabbing the positive plate on the first conveyor belt and placing the positive plate on the first feeding station, and the second feeding manipulator is used for grabbing the negative plate on the second conveyor belt and placing the negative plate on the second feeding station; when the first rotary disc drives the positive plate to rotate and move to the first blanking station, the lamination manipulator grabs the positive plate and places the positive plate on the lamination platform from the first blanking station, and when the second rotary disc drives the negative plate to rotate and move to the second blanking station, the lamination manipulator grabs the negative plate and places the negative plate on the lamination platform from the second blanking station.
Through adopting above-mentioned technical scheme, set up two manipulators and two carousels between lamination platform and conveying mechanism, like this, conveniently increase other processes before the lamination, like dust removal and counterpoint process etc. to improve the qualification rate of follow-up lamination.
In one embodiment, the first rotary table has a first dust removal station, the second rotary table has a second dust removal station, and the battery cell lamination device further includes a first dust suction mechanism and a second dust suction mechanism, where the first dust suction mechanism is used for the first rotary table to drive the positive electrode plate to rotate to the first dust removal station for dust removal, and the second dust suction mechanism is used for the second rotary table to drive the negative electrode plate to move to the second dust removal station for dust removal.
By adopting the technical scheme, the first dust collection mechanism can adsorb the tiny particles on the surface of the positive plate on the first dust collection station, the second dust collection mechanism can adsorb the tiny particles on the surface of the negative plate on the second dust collection station, and the non-contact dust collection method is adopted, so that the damage to the surface of the positive plate is avoided, and the defective rate can be reduced.
In one embodiment, the cell stacking apparatus further includes a first CCD vision detecting mechanism and a second CCD vision detecting mechanism, where the first CCD vision detecting mechanism is configured to detect whether the positive plate on the first conveyor belt is qualified, and the second CCD vision detecting mechanism is configured to detect whether the negative plate on the second conveyor belt is qualified.
Through adopting above-mentioned technical scheme, adopt CCD visual detection, can avoid the error of artificial detection, when detecting the defective work, can reject the defective work from the conveyer belt that corresponds, avoid flowing into back process, cause the potential safety quality hazard.
In one embodiment, the cell lamination device further includes a first rejecting mechanism and a second rejecting mechanism, the first rejecting mechanism is in communication connection with the first CCD vision detecting mechanism and is used for rejecting unqualified positive plates on the first conveyor belt, and the second rejecting mechanism is in communication connection with the second CCD vision detecting mechanism and is used for rejecting unqualified negative plates on the second conveyor belt.
By adopting the technical scheme, the first rejecting mechanism and the second rejecting mechanism are arranged, so that unqualified positive plates and negative plates on the conveying mechanism can be automatically rejected, and the situation that a defective product flows into a post-process to cause potential safety quality hazards is prevented.
In one embodiment, the cell lamination device further includes a third CCD vision detection mechanism, a fourth CCD vision detection mechanism and a fifth CCD vision detection mechanism, the third CCD vision detection mechanism is configured to photograph the positive plate at the first blanking station and acquire alignment image information of the positive plate, two lamination manipulators are provided, and one of the lamination manipulators is in communication connection with the third CCD vision detection mechanism to correct the posture according to the acquired alignment image information of the positive plate; the fourth CCD visual detection mechanism is used for photographing the negative plate of the second blanking station and acquiring the alignment image information of the negative plate, and the other lamination mechanical arm is in communication connection with the fourth CCD visual detection mechanism so as to correct the posture according to the acquired alignment image information of the negative plate; and the fifth CCD visual detection mechanism is used for detecting the alignment degree of pole piece stacking on the lamination platform.
By adopting the technical scheme, the lamination mechanical arm can adjust the posture in time according to the alignment image information acquired by the corresponding CCD visual detection mechanism, so that the alignment degree of each pole piece is higher in the process of grabbing the pole pieces to perform lamination on the lamination platform, and the qualified rate of the lamination can be improved.
Another object of the utility model is to provide a be suitable for above-mentioned electric core lamination equipment's lamination electricity core, include:
the positive plate comprises a positive current collector, a positive coating and a solid electrolyte layer, wherein the positive coating is arranged on the upper surface and the lower surface of the positive current collector, and the solid electrolyte layer is arranged on the surface of the positive coating far away from the positive current collector;
the negative plate comprises a negative current collector and negative coatings arranged on the upper surface and the lower surface of the negative current collector;
wherein the positive electrode sheets and the negative electrode sheets are alternately stacked.
Through adopting above-mentioned technical scheme, cancelled the diaphragm, the in-process of lamination can not appear the diaphragm like this and corrugate, dislocation the defective products and the potential safety hazard that produce, simultaneously, the relevant mechanisms such as rectifying of unreeling of corresponding electric core lamination equipment also can take off with the diaphragm, can simplify equipment structure, reduction in production cost.
In one embodiment, the positive current collector is an aluminum foil and the negative current collector is a copper foil.
By adopting the technical scheme, during manufacturing, the positive coating and the solid electrolyte layer are coated on the two surfaces of the aluminum foil, the aluminum foil can be cut into the plurality of positive plates after being dried, the negative coating is coated on the two surfaces of the copper foil, the aluminum foil can be cut into the plurality of negative plates after being dried, and then the positive plates and the negative plates are alternately superposed to manufacture the laminated battery core.
In one embodiment, the bottom and the top of the laminated cell are both negative plates.
By adopting the technical scheme, the two opposite outermost pole pieces of the laminated battery cell are the negative pole pieces, so that the laminated battery cell can form a vertically symmetrical structure along the lamination direction, and the stress is more balanced when the positive pole pieces and the negative pole pieces are superposed and pressed.
The utility model provides an electricity core lamination equipment's beneficial effect lies in: compared with the prior art, the battery core lamination equipment of the utility model cancels the diaphragm, so that no diaphragm participates in the lamination process, defective products and potential safety hazards caused by diaphragm wrinkling and dislocation can be avoided, and the operation efficiency of the equipment and the qualification rate of products can be effectively improved; the positive plate and the negative plate are sequentially conveyed towards the direction of the lamination platform through the conveying mechanism, the unreeling deviation correcting mechanism related to the diaphragm and the material box used for containing the pole pieces are omitted, the equipment structure can be simplified, the production cost is reduced, the quality hidden danger that dust falls on a plurality of pole pieces and the edges of the pole pieces is prevented from being adsorbed once, and the qualified rate of the lamination is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a cell lamination apparatus provided in an embodiment of the present invention;
fig. 2 is a cross-sectional view of a laminated cell provided in an embodiment of the present invention;
fig. 3 is a schematic view of the laminated cell shown in fig. 2 when laminated;
FIG. 4 is a schematic structural diagram of the positive plate in FIG. 3;
FIG. 5 is a schematic structural diagram of the negative electrode sheet in FIG. 3;
FIG. 6 is a schematic structural view of the positive plate in FIG. 3 with a positive tab;
fig. 7 is a schematic structural diagram of the negative electrode sheet in fig. 3 provided with negative electrode tabs.
Wherein, in the figures, the respective reference numerals:
1-a laminated cell; 10-positive plate; 11-positive current collector; 12-a positive electrode coating; 13-a solid electrolyte layer; 14-positive tab; 20-negative plate; 21-a negative current collector; 22-negative electrode coating; 23-negative tab; 100-a conveying mechanism; 200-a lamination manipulator; 300-a lamination platform; 400-a blanking manipulator; 500-rubberizing a platform; 510-a rubberizing mechanism; 511-a first adhesive applying machine; 512-a second adhesive tape sticking machine; 110-a first conveyor belt; 120-a second conveyor belt; 130-a first rejection mechanism; 131-a first collection box; 140-a second rejection mechanism; 141-a second collection cassette; 210-a first lamination robot; 220-a second lamination robot; 410-defective material box; 610-a first carousel; 620-a second carousel; 611-a first loading station; 612-a first dust removal station; 613-first blanking station; 621-a second feeding station; 622-second dust removal station; 623-a second blanking station; 710-a first CCD vision detection mechanism; 720-a second CCD visual detection mechanism; 730-a third CCD vision detection mechanism; 740-a fourth CCD vision inspection mechanism; 750-fifth CCD visual detection mechanism; 810-a first loading manipulator; 820-a second feeding manipulator; 910-a conveyor belt; 920-tray.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an embodiment of the present invention provides a cell lamination device suitable for the lamination cell 1, which includes a conveying mechanism 100, a lamination manipulator 200, a lamination platform 300, an unloading manipulator 400, and a gluing mechanism 510. The conveying mechanism 100 can adopt a belt for conveying, the conveying mechanism 100 is used for conveying a plurality of positive plates 10 and a plurality of negative plates 20, wherein the positive plates 10 have solid electrolyte layers on the front and back surfaces, and the laminated battery cell has no diaphragm, so that a material box for containing the plates is not needed. The lamination manipulator 200 is configured to grasp the positive plates 10 and the negative plates 20 located on the conveying mechanism 100, stack the positive plates 10 and the negative plates 20 on the lamination platform 300 in sequence, and form the laminated battery cell 1 after stacking the positive plates 10 and the negative plates 20 to a predetermined number of layers. The rubberizing platform 500 is provided with a rubberizing station, and the blanking manipulator 400 is used for grabbing the laminated cell 1 from the laminated platform 300 and placing the laminated cell 1 on the rubberizing station of the rubberizing platform 500; rubberizing mechanism 510 is used for carrying out the rubberizing to the side all around of placing lamination electricity core 1 at the rubberizing station, and when the rubberizing station had lamination electricity core 1, rubberizing platform 500 can be around vertical axis rotation, can accomplish the rubberizing operation to lamination electricity core 1 week side like this.
According to the battery cell lamination equipment, because the diaphragm is cancelled in the battery cell, no diaphragm participates in the lamination process, defective products and potential safety hazards caused by diaphragm wrinkling and dislocation can be avoided, and the operation efficiency of the equipment and the qualification rate of products can be effectively improved; the positive plate 10 and the negative plate 20 are sequentially conveyed towards the direction of the lamination platform 300 through the conveying mechanism 100, an unreeling deviation correcting mechanism related to a diaphragm and a material box used for containing the pole pieces are omitted, the equipment structure can be simplified, the production cost is reduced, the quality hidden danger that dust falls on a plurality of pole pieces and the edges of the pole pieces is adsorbed once can be avoided, and the qualified rate of the lamination is improved.
In an embodiment, the gluing mechanism 510 includes a gluing platform 500, a first gluing machine 511 and a second gluing machine 512, after the lamination platform 300 finishes the lamination of the predetermined number of layers, the positive plate 10 and the negative plate 20 form the laminated battery cell 1, the feeding manipulator 400 grabs and places the laminated battery cell 1 on the gluing platform 500, the first gluing machine 511 performs gluing operation on two opposite ends of the laminated battery cell 1 in the width direction, and the second gluing machine 512 performs gluing operation on two opposite ends of the laminated battery cell 1 in the length direction. It is understood that other forms of gluing devices may be used to glue the cells.
In one embodiment, referring to fig. 1, the conveying mechanism 100 includes a first conveyor 110 and a second conveyor 120 arranged in parallel and spaced apart. The first conveyor belt 110 is used for conveying a plurality of positive electrode plates 10 which are sequentially placed at intervals, and the plurality of positive electrode plates 10 can be sequentially placed on the first conveyor belt 110 at even intervals; the second conveyor 120 is used for conveying the plurality of negative electrode tabs 20 which are sequentially arranged at intervals, and the plurality of negative electrode tabs 20 can be sequentially arranged on the second conveyor 120 at even intervals. The positive plate 10 and the negative plate 20 are conveyed to the downstream by adopting a mode of two conveying belts, the traditional mode of material boxes and mechanical positioning is omitted, and the pole pieces are arranged at intervals, so that the phenomena of sequential adsorption of a plurality of pole pieces and powder falling at the edges of the pole pieces are avoided.
In an embodiment, referring to fig. 1, the cell lamination apparatus further includes a first feeding robot 810, a second feeding robot 820, a first turntable 610, and a second turntable 620, where the first turntable 610 and the second turntable 620 are disposed between the conveying mechanism 100 and the lamination platform 300. The bottom surfaces of the first rotating disc 610 and the second rotating disc 620 are both provided with power sources for driving the rotating discs to rotate, the first rotating disc 610 and the second rotating disc 620 can both adopt cam divider rotating discs, and the rotating angles of the first rotating disc 610 and the second rotating disc 620 can be preset according to the actual production requirements, such as 90 degrees of rotation, so that the production beat of other mechanisms can be well matched, and the production efficiency is improved. The first turntable 610 has a first feeding station 611 and a first blanking station 613, and the second turntable 620 has a second feeding station 621 and a second blanking station 623; the first feeding manipulator 810 is used for grabbing and placing the positive electrode plate 10 on the first conveyor belt 110 at the first feeding station 611, and the second feeding manipulator 820 is used for grabbing and placing the negative electrode plate 20 on the second conveyor belt 120 at the second feeding station 621; when the first turntable 610 drives the positive plate 10 to rotate and move to the first blanking station 613, the lamination manipulator 200 grabs the positive plate 10 from the first blanking station 613 and places the positive plate on the lamination platform 300, and when the second turntable 620 drives the negative plate 20 to rotate and move to the second blanking station 623, the lamination manipulator 200 grabs the negative plate 20 from the second blanking station 623 and places the negative plate on the lamination platform 300.
In an embodiment, referring to fig. 1, the first rotating disc 610 has a first dust removal station 612, the second rotating disc 620 has a second dust removal station 622, and the cell lamination apparatus further includes a first dust suction mechanism and a second dust suction mechanism (not shown), where the first dust suction mechanism is used for performing dust removal when the first rotating disc 610 drives the positive electrode plate 10 to rotate to the first dust removal station 612, and the second dust suction mechanism is used for performing dust removal when the second rotating disc 620 drives the negative electrode plate 20 to move to the second dust removal station 622. In one embodiment, after the first rotating disc 610 rotates 90 degrees, the positive plate 10 rotates to the first dust suction station and faces the first dust suction mechanism, and after the second rotating disc 620 rotates 90 degrees, the negative plate 20 rotates to the second dust suction station and faces the second dust suction mechanism.
In an embodiment, referring to fig. 1, the cell lamination device further includes a first CCD vision detecting mechanism 710 and a second CCD vision detecting mechanism 720, and both the first CCD vision detecting mechanism 710 and the second CCD vision detecting mechanism 720 may include a CCD camera for taking a picture and a processor for processing the taken image. The first CCD vision detecting mechanism 710 is used for detecting whether the appearance and the size of the positive electrode plate 10 on the first conveyor 110 are qualified, and the second CCD vision detecting mechanism 720 is used for detecting whether the appearance and the size of the negative electrode plate 20 on the second conveyor 120 are qualified. Adopt CCD visual detection, can avoid the error of artificial detection, when detecting the defective work, will correspond the pole piece on the conveyer belt and reject, avoid bad article to flow into back process, cause the potential safety quality hazard.
In an embodiment, referring to fig. 1, the cell lamination apparatus further includes a third CCD vision detecting mechanism 730, a fourth CCD vision detecting mechanism 740, and a fifth CCD vision detecting mechanism 750. The lamination manipulator 200 is provided with two, namely a first lamination manipulator 210 and a second lamination manipulator 220; the third CCD visual detection mechanism 730 is in communication connection with the first lamination manipulator 210, and the fourth CCD visual detection mechanism 740 is in communication connection with the second lamination manipulator 220; the third CCD vision inspection mechanism 730 is used to obtain the alignment image information of the positive plate 10 when the first rotary table 610 rotates to the first blanking station 613, the fourth CCD vision inspection mechanism is used to obtain the alignment image information of the negative plate 20 when the second rotary table 620 rotates to the second blanking station 623, and the alignment image information is the offset image information of the plates on the blanking stations of the respective rotary tables, which provides a basis for the adjustment and correction of the corresponding lamination manipulator 200. That is, the lamination manipulator 200 can adjust the posture in time according to the alignment image information acquired by the corresponding CCD vision inspection mechanism, so that the alignment of each pole piece is higher in the lamination process, and the qualification rate of the lamination can be improved; meanwhile, the traditional mechanical positioning mode is cancelled, and a non-contact positioning detection mode is adopted, so that the quality hidden trouble that dust falls from the edge of the pole piece is avoided, and the qualified rate of finished products is improved. The fifth CCD vision inspection mechanism 750 is configured to monitor the alignment degree of the lamination of the positive plate 10 and the negative plate 20 on the lamination platform 300 in real time, detect that the qualified lamination cell 1 enters the next process, and detect that the unqualified lamination cell can be manually taken out, or may set a defective product magazine 410 near the feeding manipulator 400, and grab the unqualified lamination cell from the lamination platform 300 through the feeding manipulator 400 and place the defective product magazine 410.
In an embodiment, referring to fig. 1, the battery cell lamination device further includes a first removing mechanism 130 and a second removing mechanism 140, the first removing mechanism 130 is in communication connection with the first CCD vision detecting mechanism 710, and when the first CCD vision detecting mechanism 710 detects that the appearance and the size of the positive electrode plate 10 are not qualified, the first removing mechanism 130 removes the positive electrode plate with the unqualified appearance and size on the first conveyor belt 110, and places the positive electrode plate into the first collecting box 131 beside the first removing mechanism; the second removing mechanism 140 is in communication connection with the second CCD vision detecting mechanism 720, and when the second CCD vision detecting mechanism 720 detects that the appearance and the size of the negative electrode sheet 20 are not qualified, the second removing mechanism 140 removes the negative electrode sheet with the unqualified appearance and size on the second conveyor belt 120, and places the negative electrode sheet into the second collecting box 141 beside the second conveyor belt. By arranging the first rejecting mechanism 130 and the second rejecting mechanism 140, unqualified positive plates and negative plates on the conveying mechanism 100 can be automatically rejected, and the situation that a bad product flows into a post-process to cause potential safety quality hazards is prevented. The blanking manipulator 400 forms a third rejecting mechanism, and when the fifth CCD vision inspection mechanism 750 detects a laminated cell that is not qualified in alignment after lamination, the blanking manipulator 400 grabs the laminated cell and places the laminated cell in the defective material box 410 beside.
Near the unloading manipulator 400 is equipped with conveyer belt 910, has placed tray 920 on conveyer belt 910, and after accomplishing the rubberizing, unloading manipulator 400 snatchs the lamination electricity core 1 that accomplishes the rubberizing from rubberizing platform 500 to place in tray 920, also can set up the manipulator in addition, snatch the lamination electricity core 1 that accomplishes the rubberizing and place in tray 920.
Because the battery core lamination equipment does not need a diaphragm mechanism, the potential safety hazard caused by diaphragm wrinkling is fundamentally solved; the cell lamination equipment is provided with the CCD visual detection mechanisms at corresponding positions respectively, so that online monitoring in the lamination process is realized, errors of artificial detection are prevented, and potential safety quality hazards caused by inflow of defective products into a post-process are avoided; in the lamination process, the traditional mode of loading pole pieces into a material box and mechanically positioning is cancelled, so that the quality hidden troubles of sucking multiple pieces, dropping dust on the edge of the pole piece and the like can be avoided, and the qualification rate of finished products is improved.
Referring to fig. 1, a lamination process of the cell lamination apparatus is described as follows:
a plurality of positive plates 10 are arranged on the first conveyor belt 110 at intervals, and a plurality of negative plates 20 are arranged on the second conveyor belt 120 at intervals; the first CCD visual detection mechanism 710 detects each positive plate 10 below, the second CCD visual detection mechanism 720 detects each negative plate 20 below, the positive plates and the negative plates with unqualified appearance and size are respectively grabbed and placed in the material boxes on the corresponding sides by the first eliminating mechanism 130 and the second eliminating mechanism 140, and the positive plates and the negative plates 10 and 20 with qualified appearance and size are continuously conveyed to the downstream along with the first conveyor belt 110 and the second conveyor belt 120; the first feeding mechanical arm 810 grabs the positive plate 10 and places the positive plate on the first rotating disc 610, the first rotating disc 610 rotates clockwise by 90 degrees, the first dust collection mechanism performs dust removal operation on the positive plate 10, the first rotating disc 610 continues to rotate by 180 degrees, the third CCD visual detection mechanism 730 photographs the positive plate 10 and acquires alignment image information of the positive plate 10, and the first lamination mechanical arm 210 adjusts the posture according to the alignment image information; the second manipulator grabs the negative electrode sheet 20 and places the negative electrode sheet 20 on the second turntable 620, the second feeding manipulator 820 grabs the negative electrode sheet 20 and places the negative electrode sheet 20 on the second turntable 620, the second turntable 620 rotates 90 degrees counterclockwise, the second dust collection mechanism performs dust removal operation on the negative electrode sheet 20, the second turntable 620 continues to rotate 180 degrees, the fourth CCD vision detection mechanism 740 photographs the negative electrode sheet 20 and obtains alignment image information of the negative electrode sheet 20, and the second lamination manipulator 220 adjusts the posture according to the alignment image information; the second lamination manipulator 220 grabs the negative pole pieces 20 on the second turntable 620 and places the negative pole pieces 20 on the lamination platform 300, the first lamination manipulator 210 grabs the positive pole pieces 10 on the first turntable 610 and places the positive pole pieces 20 on the lamination platform 300, the above steps are repeated for multiple times until the number of pole piece layers on the lamination platform 300 reaches a preset value, a laminated battery cell 1 is formed, the blanking manipulator 400 grabs the laminated battery cell 1 on the lamination platform 300 and places the laminated battery cell 1 on the gluing platform 500, and then the first gluing machine 511 and the second gluing machine 512 glue the laminated battery cell 1; after the rubberizing is finished, the blanking manipulator 400 grabs and places the laminated battery cell 1 which is rubberized by the rubberizing platform 500 on the tray 920 on the side conveying belt 910; and repeating the steps to obtain a plurality of laminated battery cores 1 in sequence.
Referring to fig. 2 to fig. 5, a laminated battery cell 1 according to an embodiment of the present invention will now be described. The laminated cell 1 is suitable for the cell lamination apparatus of the above-described embodiment, and the laminated cell 1 includes positive electrode sheets 10 and negative electrode sheets 20 stacked alternately. The positive electrode sheet 10 includes a positive electrode current collector 11, a positive electrode coating 12, and a solid electrolyte layer 13, the positive electrode coating 12 is formed on the upper and lower surfaces of the positive electrode current collector 11, and the solid electrolyte layer 13 is formed on the surface of the positive electrode coating 12 away from the positive electrode current collector 11. The positive electrode coating 12 can be formed by coating slurry on a positive electrode current collector 11 and drying the positive electrode current collector by a drying oven, wherein the slurry can be prepared by mixing a positive electrode material (ternary NCM, lithium iron phosphate, lithium manganate or lithium cobaltate), a conductive agent, a binder and a solvent; the solid electrolyte coating can be prepared by preparing a solution of a solid electrolyte, a binder and a solvent, coating the solution on the upper and lower surfaces of the positive current collector 11 attached with the positive electrode coating 12, and then drying the solution in an oven, wherein the solid electrolyte comprises an oxide solid electrolyte (such as lithium lanthanum zirconium oxide), a sulfide (such as LPS), and a polymer (such as polyethylene oxide). After the coating and drying operations of the positive electrode current collector 11 are completed, the positive electrode current collector is cut into a plurality of positive electrode sheets 10 with preset sizes through a die.
The negative electrode tab 20 includes a negative electrode collector 21 and a negative electrode coating 22, and the negative electrode coating 22 is formed on upper and lower surfaces of the negative electrode collector 21. The negative electrode coating 22 may be formed by coating slurry on upper and lower surfaces of the negative electrode current collector 21, and then drying the coated negative electrode current collector in an oven, wherein the slurry may be prepared by mixing a negative electrode material (graphite, silicon oxide, hard carbon, or silicon carbon), a conductive agent, a binder, and a solvent. After the coating and drying operations of the negative electrode current collector 21 are completed, the negative electrode current collector is cut into a plurality of negative electrode tabs 20 with a predetermined size by a die. The size of the positive plate 10 is equal to that of the negative plate 20, and the cross section of the positive plate 10 is rectangular while the cross section of the negative plate 20 is rectangular. After the positive plate 10 and the negative plate 20 are cut, operations such as lamination, rubberizing and the like can be performed through the battery cell lamination equipment, and due to the fact that the diaphragm is cancelled in the battery cell, defective products and potential safety hazards caused by wrinkling and dislocation of the diaphragm cannot occur in the lamination process, and the operation efficiency and the product percent of pass of the equipment are improved; and the corresponding battery core lamination equipment can also be used for canceling mechanisms such as unreeling deviation correction and the like related to the diaphragm, so that the equipment structure can be simplified, the production cost can be reduced, and the lamination of the solid-state battery can be realized.
Compared with the prior art, the laminated cell 1 provided by the utility model has the advantages that the outer layer of the positive plate 10 is the solid electrolyte layer 13, and the cell formed by alternately superposing the positive plate 10 and the negative plate 20 cancels the diaphragm, so that no diaphragm participates in the lamination process, defective products and potential safety hazards caused by diaphragm wrinkling and dislocation can be avoided, and the operation efficiency and the product qualification rate of equipment can be effectively improved; and mechanisms such as unreeling deviation correction and the like related to the diaphragm can be cancelled in the corresponding battery core lamination equipment, so that the equipment structure can be simplified, and the production cost can be reduced.
In one embodiment, the positive electrode current collector 11 may be, but is not limited to, an aluminum foil, and the negative electrode current collector 21 may be, but is not limited to, a copper foil. In the specific manufacturing process, the positive electrode coating 12 and the solid electrolyte layer 13 can be manufactured on two sides of the aluminum foil, the negative electrode coating 22 can be manufactured on two sides of the copper foil, and the thickness of each coating in the positive electrode sheet 10 and the negative electrode sheet 20 can be set according to the actual application requirements. As shown in fig. 6 and 7, a positive tab 14 is disposed at one end of the positive tab 10, a negative tab 23 is disposed at one end of the negative tab 20, after the positive tab 10 and the negative tab 20 are laminated, a laminated cell 1 (bare cell) is formed, and the positive tab 14 and the negative tab 23 are disposed at two opposite ends of the laminated cell 1.
In an embodiment, referring to fig. 3, the bottom and the top of the laminated cell 1 are both the negative electrode plates 20, that is, the total number of the negative electrode plates 20 of the finally manufactured laminated cell 1 is one greater than the total number of the positive electrode plates 10, the two opposite outermost electrode plates of the laminated cell 1 are both the negative electrode plates 20 along the stacking direction, and the opposite two sides of the laminated cell 1 form a better symmetrical structure, so that the stress is more balanced when the laminated cell is pressed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A battery core lamination device is characterized in that: the method comprises the following steps:
the conveying mechanism is used for conveying the plurality of positive plates and the plurality of negative plates;
the lamination manipulator is used for grabbing the positive plate and the negative plate which are positioned on the conveying mechanism and sequentially stacked on the lamination platform to form a lamination battery cell;
the blanking manipulator is used for grabbing the laminated battery cell from the laminated platform and placing the laminated battery cell on the rubberizing platform;
and the adhesive tape sticking mechanism is used for sticking adhesive tapes on the peripheral sides of the laminated battery cell on the adhesive tape sticking platform.
2. The cell lamination apparatus of claim 1, wherein: the conveying mechanism comprises a first conveying belt and a second conveying belt which are arranged in parallel at intervals, the first conveying belt is used for conveying a plurality of positive plates which are sequentially arranged at intervals, and the second conveying belt is used for conveying a plurality of negative plates which are sequentially arranged at intervals.
3. The cell lamination apparatus of claim 2, wherein: the battery cell lamination equipment further comprises a first feeding manipulator, a second feeding manipulator, a first rotary disc and a second rotary disc, wherein the first rotary disc and the second rotary disc are arranged between the conveying mechanism and the lamination platform, the first rotary disc is provided with a first feeding station and a first discharging station, and the second rotary disc is provided with a second feeding station and a second discharging station; the first feeding manipulator is used for grabbing the positive plate on the first conveyor belt and placing the positive plate on the first feeding station, and the second feeding manipulator is used for grabbing the negative plate on the second conveyor belt and placing the negative plate on the second feeding station; when the first rotary disc drives the positive plate to rotate and move to the first blanking station, the lamination manipulator grabs the positive plate and places the positive plate on the lamination platform from the first blanking station, and when the second rotary disc drives the negative plate to rotate and move to the second blanking station, the lamination manipulator grabs the negative plate and places the negative plate on the lamination platform from the second blanking station.
4. The cell lamination apparatus of claim 3, wherein: first carousel has first dust removal station, the second carousel has second dust removal station, electricity core lamination equipment still includes first dust absorption mechanism and second dust absorption mechanism, first dust absorption mechanism is used for first carousel drives positive plate rotates extremely remove dust during the first dust removal station, second dust absorption mechanism is used for the second carousel drives the negative pole piece removes extremely remove dust during the second dust removal station.
5. The cell lamination apparatus of claim 4, wherein: the battery cell lamination equipment further comprises a first CCD visual detection mechanism and a second CCD visual detection mechanism, the first CCD visual detection mechanism is used for detecting whether a positive plate on the first conveyor belt is qualified, and the second CCD visual detection mechanism is used for detecting whether a negative plate on the second conveyor belt is qualified.
6. The cell lamination apparatus of claim 5, wherein: the battery core lamination equipment further comprises a first rejecting mechanism and a second rejecting mechanism, wherein the first rejecting mechanism is in communication connection with the first CCD visual detection mechanism and used for rejecting unqualified positive plates on the first conveyor belt, and the second rejecting mechanism is in communication connection with the second CCD visual detection mechanism and used for rejecting unqualified negative plates on the second conveyor belt.
7. The cell lamination apparatus of any one of claims 3 to 6, wherein: the battery cell laminating equipment further comprises a third CCD visual detection mechanism, a fourth CCD visual detection mechanism and a fifth CCD visual detection mechanism, the third CCD visual detection mechanism is used for photographing the positive plate of the first blanking station and acquiring alignment image information of the positive plate, two laminating mechanical arms are arranged, and one of the laminating mechanical arms is in communication connection with the third CCD visual detection mechanism so as to correct the posture according to the acquired alignment image information of the positive plate; the fourth CCD visual detection mechanism is used for photographing the negative plate of the second blanking station and acquiring the alignment image information of the negative plate, and the other lamination mechanical arm is in communication connection with the fourth CCD visual detection mechanism so as to correct the posture according to the acquired alignment image information of the negative plate; and the fifth CCD visual detection mechanism is used for detecting the alignment degree of pole piece stacking on the lamination platform.
8. A laminated cell adapted for the cell lamination apparatus of any of claims 1 to 7, wherein: the method comprises the following steps:
the positive plate comprises a positive current collector, a positive coating and a solid electrolyte layer, wherein the positive coating is arranged on the upper surface and the lower surface of the positive current collector, and the solid electrolyte layer is arranged on the surface of the positive coating far away from the positive current collector;
the negative plate comprises a negative current collector and negative coatings arranged on the upper surface and the lower surface of the negative current collector;
wherein the positive electrode sheets and the negative electrode sheets are alternately stacked.
9. The laminated cell of claim 8, wherein: the positive current collector is an aluminum foil, and the negative current collector is a copper foil.
10. The laminated cell of claim 8, wherein: and the bottom and the top of the laminated battery cell are both negative plates.
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| CN202022715241.8U CN214898531U (en) | 2020-11-20 | 2020-11-20 | Battery core lamination equipment and lamination battery core |
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| CN202022715241.8U CN214898531U (en) | 2020-11-20 | 2020-11-20 | Battery core lamination equipment and lamination battery core |
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| CN214898531U true CN214898531U (en) | 2021-11-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114581446A (en) * | 2022-05-06 | 2022-06-03 | 浙江双元科技股份有限公司 | Battery core abnormity detection method and system of laminated battery |
| CN114888451A (en) * | 2022-05-11 | 2022-08-12 | 东莞市盛雄激光先进装备股份有限公司 | Full laser film-making, cutting and folding integrated machine |
| CN114976276A (en) * | 2022-06-24 | 2022-08-30 | 佛山市天劲新能源科技有限公司 | High-speed lamination method and device for lithium ion battery and lithium ion battery |
| CN115275310A (en) * | 2022-08-30 | 2022-11-01 | 湖北亿纬动力有限公司 | Lamination device and lamination method |
| CN115672661A (en) * | 2022-11-04 | 2023-02-03 | 肇庆高峰机械科技有限公司 | High-precision magnetic steel machining device |
| CN115763995A (en) * | 2022-12-12 | 2023-03-07 | 重庆太蓝新能源有限公司 | Battery cell lamination method, device, equipment and storage medium |
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2020
- 2020-11-20 CN CN202022715241.8U patent/CN214898531U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114581446A (en) * | 2022-05-06 | 2022-06-03 | 浙江双元科技股份有限公司 | Battery core abnormity detection method and system of laminated battery |
| CN114888451A (en) * | 2022-05-11 | 2022-08-12 | 东莞市盛雄激光先进装备股份有限公司 | Full laser film-making, cutting and folding integrated machine |
| CN114976276A (en) * | 2022-06-24 | 2022-08-30 | 佛山市天劲新能源科技有限公司 | High-speed lamination method and device for lithium ion battery and lithium ion battery |
| CN115275310A (en) * | 2022-08-30 | 2022-11-01 | 湖北亿纬动力有限公司 | Lamination device and lamination method |
| CN115672661A (en) * | 2022-11-04 | 2023-02-03 | 肇庆高峰机械科技有限公司 | High-precision magnetic steel machining device |
| CN115763995A (en) * | 2022-12-12 | 2023-03-07 | 重庆太蓝新能源有限公司 | Battery cell lamination method, device, equipment and storage medium |
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