CN214226976U - Pole piece conveying device and battery cell winding equipment - Google Patents
Pole piece conveying device and battery cell winding equipment Download PDFInfo
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- CN214226976U CN214226976U CN202023198867.2U CN202023198867U CN214226976U CN 214226976 U CN214226976 U CN 214226976U CN 202023198867 U CN202023198867 U CN 202023198867U CN 214226976 U CN214226976 U CN 214226976U
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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
Abstract
The application provides a pole piece conveyer and electric core coiling equipment. The pole piece conveying device is used for conveying and winding a pole piece material belt and comprises a rack, a pole piece discharging mechanism, a winding pretreatment mechanism and a pole piece winding mechanism, wherein the pole piece discharging mechanism, the winding pretreatment mechanism and the pole piece winding mechanism are sequentially arranged along the winding direction of the pole piece material belt. The pole piece discharging mechanism comprises a feeding roller shaft which is rotatably connected with the rack, and the feeding roller shaft is used for retracting the pole piece material belt. The winding pretreatment mechanism comprises a heating and drying assembly and a rolling and shaping assembly, the heating and drying assembly comprises a heating box body and a heating element, and a heating cavity, a first communicating port and a second communicating port are formed in the heating box body. When the pole piece material belt is heated and dried, the high temperature improves the surface coating molecules of the pole piece and the activity degree of the current collector molecules, the internal stress accumulated in the pole piece can be promoted to be quickly released when the activity degree of the molecules is improved, the problem of the performance reduction of the battery cell caused by the accumulation of the internal stress is avoided, and the battery cell formed by winding the pole piece has better performance.
Description
Technical Field
The utility model relates to a battery processing makes technical field, especially relates to a pole piece conveyer and electric core coiling equipment.
Background
Lithium batteries are widely used in daily life, and mainly include two types, namely, a laminated lithium battery and a wound lithium battery, wherein the wound lithium battery is a mainstream lithium battery type due to a larger electric energy reserve and a more compact appearance.
After the preparation and slitting of the battery core pole piece of the winding type lithium battery are completed, the battery core is formed by winding with other pole pieces and diaphragms in a battery core winding machine, the battery core can be obtained after liquid injection and packaging, the battery core pole piece needs to be subjected to cold press molding after coating and drying, the battery core pole piece is easily infected with water vapor in the air during the cold press molding after drying and the winding of the battery core pole piece, so that the moisture content of the wound battery core is higher, when the wound battery core contains higher moisture, the contact infiltration effect of electrolyte and the pole piece can be influenced, and when the battery core is subjected to formation treatment, the electrolyte can be invalid due to the higher moisture in the interior of the battery, the SEI film on the pole piece is influenced, even the flatulence of the battery is caused, and the performance and the service life of the battery are further reduced. In addition, in the cold pressing process, the pole piece can accumulate more internal stress, the internal stress can be gradually released in the formation stage and the subsequent battery use stage, the pole piece is deformed due to the release of the internal stress, the uneven contact between the electrolyte and the surface of the pole piece is caused, the circulation rate and the circulation space of lithium ions between the positive pole and the negative pole are further reduced, and the power supply reserve capacity of the battery is rapidly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, provide one kind and can increase pole piece drying degree, improve the electric energy reserve volume of electric core, improve the security of electric core and life's pole piece conveyer and electric core coiling equipment.
The purpose of the utility model is realized through the following technical scheme:
a pole piece transport apparatus for transporting and winding a strip of pole pieces, said pole piece transport apparatus comprising:
the winding machine comprises a rack, a pole piece discharging mechanism, a winding pretreatment mechanism and a pole piece winding mechanism, wherein the pole piece discharging mechanism, the winding pretreatment mechanism and the pole piece winding mechanism are sequentially arranged along the winding direction of a pole piece material belt;
the pole piece discharging mechanism comprises a feeding roller shaft which is rotationally connected with the rack, and the feeding roller shaft is used for retracting the pole piece material belt;
the winding pretreatment mechanism comprises a heating and drying assembly and a rolling and shaping assembly, the heating and drying assembly comprises a heating box body and a heating element, the heating box body is connected with the rack, the heating box body is provided with a heating cavity, a first communicating port and a second communicating port, the heating cavity is respectively communicated with the first communicating port and the second communicating port, the heating element is arranged in the heating cavity, and the heating element is used for heating the pole piece material belt; the two rolling shafts are rotatably connected with the rack and are arranged adjacently, so that a rolling area is formed between the two rolling shafts, and the first communication port, the heating cavity, the second communication port and the rolling area are used for sequentially penetrating and conveying the pole piece material belt;
the pole piece winding mechanism is arranged on the rack and used for winding a pole piece material belt.
In one embodiment, both of the rolling shafts are disposed adjacent to the second communication port.
In one embodiment, the heating and drying assembly comprises a plurality of conveying rollers, the plurality of conveying rollers are all arranged in the heating cavity and are all rotatably connected with the heating box body, and the plurality of conveying rollers are jointly used for winding and conveying the pole piece material belt located between the first communicating port and the second communicating port.
In one embodiment, the heating element includes a first heating tube and a second heating tube, the first heating tube and the second heating tube are disposed in the heating cavity opposite to each other, and the first heating tube and the second heating tube are used for heating the pole piece material strap together.
In one embodiment, the winding pre-treatment mechanism further comprises a winding pre-heating roller shaft, the winding pre-heating roller shaft is rotatably connected with the frame, the winding pre-heating roller shaft is located between the rolling shaping assembly and the pole piece winding mechanism, the winding pre-heating roller shaft is used for conveying the pole piece material belt located between the rolling shaping assembly and the pole piece winding mechanism, and the winding pre-heating roller shaft is further used for heating the pole piece material belt.
In one embodiment, the winding preheat roller shaft is arranged adjacent to the pole piece winding mechanism.
In one embodiment, the cross section of the first communication port is matched with that of the pole piece material belt, and the second communication port is the same as the first communication port in shape.
In one embodiment, the heating box body includes a box body and a box door, the box door is hinged to the box body, the box body is provided with an opening, the opening is communicated with the heating cavity, the box door is arranged at the opening, and the heating cavity, the first communicating port and the second communicating port are all arranged at the box body.
A cell winding device, comprising the pole piece conveying device in any one of the above embodiments.
A cell winding apparatus includes the pole piece conveying device in any of the above embodiments.
In one embodiment, the cell winding apparatus further includes a cell collection mechanism, the cell collection mechanism includes a cell transport plate and a conveyor belt, one end of the cell transport plate is disposed adjacent to the pole piece winding mechanism, and one end of the conveyor belt is disposed adjacent to an end of the cell transport plate away from the pole piece winding mechanism.
Compared with the prior art, the utility model discloses at least, following advantage has:
1. heating cavity can heat the pole piece when the pole piece material area passes the heating cavity and dry for the water content of the electric core that pole piece and pole piece coiling formed reduces, and then helps making the electric core that the pole piece coiling formed have better performance. When the pole piece is heated and dried, the high temperature improves the activity degree of the surface coating molecules of the pole piece and the current collector molecules, the internal stress accumulated inside the pole piece can be rapidly released when the activity degree of the molecules is improved, the problem of the performance reduction of the battery cell caused by the accumulation of the internal stress is avoided, and the battery cell formed by winding the pole piece has better performance.
2. After the pole piece material belt leaves the heating box body from the second intercommunicating pore, the pole piece material belt moves to the rolling and shaping assembly, and the pole piece is still in a softening state because the pole piece is just heated at the moment, and two surfaces of the pole piece are rolled through two rolling shafts at the moment, so that the effect of rapidly improving the flatness of the two surfaces of the pole piece can be played, the pole piece is further helped to be fully soaked by electrolyte, and the performance of the battery 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 pole piece transfer apparatus according to an embodiment;
fig. 2 is a schematic structural diagram of a cell winding apparatus in an embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, a pole piece conveying device 10 of an embodiment is used for conveying and winding a pole piece material tape, and the pole piece conveying device 10 includes: the pole piece winding machine comprises a rack 100, a pole piece discharging mechanism 300, a winding pretreatment mechanism 400 and a pole piece winding mechanism 200 which are sequentially arranged along the winding direction of a pole piece material belt; the pole piece discharging mechanism 300 comprises a feeding roller shaft 310 which is rotatably connected with the rack 100, and the feeding roller shaft 310 is used for winding and unwinding the pole piece material belt; the winding pretreatment mechanism 400 comprises a heating and drying assembly 410 and a rolling and shaping assembly 420, the heating and drying assembly 410 comprises a heating box 412 and a heating element 411, the heating box 412 is connected with the rack 100, the heating box 412 is provided with a heating cavity 412a, a first communicating port 412b and a second communicating port 412c, the heating cavity 412a is respectively communicated with the first communicating port 412b and the second communicating port 412c, the heating element 411 is arranged in the heating cavity 412a, and the heating element 411 is used for heating the pole piece material belt; the two rolling shafts 421 of the rolling shaping assembly 420 are rotatably connected to the frame 100, the two rolling shafts 421 are adjacently arranged, so that a rolling area 422 is formed between the two rolling shafts 421, and the first communication port 412b, the heating cavity 412a, the second communication port 412c and the rolling area 422 are used for sequentially penetrating and conveying the pole piece material strip; the pole piece winding mechanism 200 is arranged on the rack 100, and the pole piece winding mechanism 200 is used for winding a pole piece material belt.
In this embodiment, the pole piece material tape is sleeved on the feeding roller 310, the pole piece material tape is connected to the pole piece winding mechanism 200, the rotation of the feeding roller 310 and the winding of the pole piece material tape by the pole piece winding mechanism 200 gradually transfer the pole piece on the feeding roller 310 to the pole piece winding mechanism 200 for winding, and the pole piece needs to pass through the heating and drying assembly 410 and the rolling and shaping assembly 420 in sequence in the process of being conveyed from the feeding roller 310 to the pole piece winding mechanism 200. Heating and drying subassembly 410 is including heating box 412 and heating member 411, the pole piece is when convoluteing, the pole piece material area gets into heating cavity 412a from the first opening 411b of heating box 412, and leave heating box 412 from second opening 411c, heating box 412's heating member 411 can play the effect that risees the inside temperature of heating cavity 412a, heating box 412 can play the effect that prevents a large amount of heat overflows, improve heating member 411's heat utilization ratio, the pole piece material area heats cavity 412a and can carry out the heating and drying to pole piece material area when passing heating cavity 412a, make the water content of the electric core that pole piece and pole piece coiling formed reduce, and then help making the electric core that the pole piece coiling formed have better performance. When the pole piece is heated and dried, the high temperature improves the activity degree of the surface coating molecules of the pole piece and the current collector molecules, the internal stress accumulated inside the pole piece can be rapidly released when the activity degree of the molecules is improved, the problem of the performance reduction of the battery cell caused by the accumulation of the internal stress is avoided, and the battery cell formed by winding the pole piece has better performance.
After the pole piece is heated and dried, the internal stress of the coating of the pole piece and the current collector is released, the coating of the pole piece is slightly puffed in the heating process, and the puffing of the coating of the pole piece increases the unevenness degree of the surface of the pole piece due to disordered thermal motion of coating molecules, so that the contact and infiltration of the pole piece and electrolyte are poor, and the performance of the battery is influenced. Roll-in integer subassembly 420 includes two roll-in axles 421, two roll-in axles 421 support two surfaces of the pole piece area body jointly, roll-in order to carry out the pole piece, the pole piece material area leaves heating box 412 back from the second intercommunicating pore, the area body portion of pole piece will move to roll-in integer subassembly 420 department, because the pole piece has just been heated this moment, therefore the pole piece still is in the softened state, roll-in through two surfaces of two roll-in axles 421 to the pole piece this moment, can play the effect of promoting two surface smoothness of pole piece fast, and then help electrolyte to fully soak the pole piece, promote the performance of battery.
As shown in fig. 1, in one embodiment, two of the rolling shafts 421 are disposed adjacent to the second communication port 411 c. In order to reduce the heat loss of the pole piece before rolling, in this embodiment, the two rolling shafts 421 are adjacent to the second communicating port 411c, and the pole piece after being heated and dried can immediately enter the space between the two rolling shafts 421 for rolling, so that the pole piece during rolling has a better softening effect, and the flatness of the surface of the pole piece after rolling is further increased.
As shown in fig. 1, in one embodiment, the heating and drying assembly 410 includes a plurality of conveying rollers 413, the plurality of conveying rollers 413 are disposed in the heating chamber 412a, the plurality of conveying rollers 413 are rotatably connected to the heating box 412, and the plurality of conveying rollers 413 are commonly used for winding and conveying the pole piece material strip between the first communicating opening 412b and the second communicating opening 412 c. After the pole piece material belt is conveyed to the heating cavity 412a, the pole piece material belt is sequentially overlapped on the conveying roller shafts 413 in a staggered mode to form a snake-shaped conveying path, so that the heat exchange area of the pole pieces in the heating cavity 412a is increased, the heating box body 412 can heat more pole pieces at the same time, the time for heating the pole pieces in any position in the heating cavity 412a can be increased, the drying degree is improved, and sufficient time is provided for stress release of the pole pieces.
As shown in fig. 1, in one embodiment, the winding pre-treatment mechanism 400 further includes a winding pre-heating roller 430, the winding pre-heating roller 430 is rotatably connected to the frame 100, the winding pre-heating roller 430 is located between the roll sizing assembly 420 and the pole piece winding mechanism 200, the winding pre-heating roller 430 is used for conveying the pole piece material belt located between the roll sizing assembly 420 and the pole piece winding mechanism 200, and the winding pre-heating roller 430 is also used for heating the pole piece material belt. After the pole pieces are rolled, the temperature of the pole pieces is gradually reduced to the normal temperature, in order to improve the forming quality of winding of the battery cell, in the embodiment, the pole pieces are preheated by the winding preheating roller shaft 430 before being wound, and after being preheated, the effect of softening the pole pieces can be achieved, so that the pole pieces can be conveniently wound by the pole piece winding mechanism 200, the winding smoothness and stability are further improved, and the probability of faults during winding is reduced; because expend with heat and contract with cold principle, the volume of the pole piece after preheating will increase slightly, and the electric core of accomplishing the coiling is after the cooling, because the volume of pole piece reduces slightly, will form certain clearance between the pole piece on different circle layers, and this clearance provides the space for the stress release of pole piece, avoids electric core coiling tension to lead to electric core quality to descend, and this clearance can provide the space for the infiltration of electrolyte simultaneously, and then improves the infiltration effect of electrolyte to the pole piece for the battery has better performance.
In one embodiment, as shown in fig. 1, the take-up preheat roller 430 is positioned adjacent to the pole piece take-up mechanism 200. In order to reduce the heat loss of the pole piece before winding, in this embodiment, the winding preheating roller shaft 430 is disposed adjacent to the pole piece winding mechanism 200, so that the pole piece can immediately enter the pole piece winding mechanism 200 for winding after preheating, that is, the pole piece still has a proper temperature and a proper softening degree during winding, and further the effect of preheating the pole piece is maximized.
As shown in fig. 1, in one embodiment, the cross section of the first communication opening 411b is matched with the cross section of the pole piece material tape, and the second communication opening 411c is the same as the first communication opening 411b in shape. In order to reduce the heat loss of heating box 412 in the heating process, in this embodiment, the cross-section of first intercommunication mouth 411b and second intercommunication mouth 411c all with the cross-section looks adaptation in pole piece material area, first intercommunication mouth 411b and second intercommunication mouth 411 c's shape all is the same with the pole piece cross-section promptly, first intercommunication mouth 411b and second intercommunication mouth 411c are rectangular opening, so, can reduce the heat that overflows from first intercommunication mouth 411b or second intercommunication mouth 411c by a wide margin, reduce thermal waste and improve thermal utilization ratio, also play the improvement simultaneously and to the drying efficiency of pole piece.
As shown in fig. 1, in one embodiment, the heating member 411 includes a first heating pipe 411a and a second heating pipe 411b, and the first heating pipe 411a and the second heating pipe 411b are respectively disposed on two opposite inner sidewalls of the heating chamber 412 a. Heating stoving subassembly 410 heats the pole piece through first heating pipe 411a and second heating pipe 411b, first heating pipe 411a and second heating pipe 411b set up respectively on two relative inside walls of heating cavity 412a for the heat distribution homogeneity of heating cavity 412a promotes, and then can be more even heats the pole piece, can play and prevent that pole piece local heating is inhomogeneous to lead to the not good or the not good condition of local stoving effect of local internal stress release effect.
As shown in fig. 1, in one embodiment, the heating chamber 412 includes a chamber body and a chamber door, the chamber door is hinged to the chamber body, the chamber body has an opening, the opening is communicated with the heating chamber 412a, the chamber door is covered by the opening, and the heating chamber 412a, the first communicating opening 412b and the second communicating opening 412c are all opened in the chamber body. In this embodiment, the heating box 412 includes box main body and chamber door, and when connecting the pole piece material area, can open the chamber door of heating box 412, can play the effect that conveniently sets up the pole piece material area, and the back that finishes sets up can close the chamber door, can make heating box 412 have better heat preservation effect.
The present application further provides a battery cell winding apparatus, including the pole piece conveying device 10 described in any of the above embodiments. As shown in fig. 2, in one embodiment, a pole piece conveying device 10 is used for conveying and winding a pole piece material belt, and the pole piece conveying device 10 includes: the pole piece winding machine comprises a rack 100, a pole piece discharging mechanism 300, a winding pretreatment mechanism 400 and a pole piece winding mechanism 200 which are sequentially arranged along the winding direction of a pole piece material belt; the pole piece discharging mechanism 300 comprises a feeding roller shaft 310 which is rotatably connected with the rack 100, and the feeding roller shaft 310 is used for winding and unwinding the pole piece material belt; the winding pretreatment mechanism 400 comprises a heating and drying assembly 410 and a rolling and shaping assembly 420, the heating and drying assembly 410 comprises a heating box 412 and a heating element 411, the heating box 412 is connected with the rack 100, the heating box 412 is provided with a heating cavity 412a, a first communicating port 412b and a second communicating port 412c, the heating cavity 412a is respectively communicated with the first communicating port 412b and the second communicating port 412c, the heating element 411 is arranged in the heating cavity 412a, and the heating element 411 is used for heating the pole piece material belt; the two rolling shafts 421 of the rolling shaping assembly 420 are rotatably connected to the frame 100, the two rolling shafts 421 are adjacently arranged, so that a rolling area 422 is formed between the two rolling shafts 421, and the first communication port 412b, the heating cavity 412a, the second communication port 412c and the rolling area 422 are used for sequentially penetrating and conveying the pole piece material strip; the pole piece winding mechanism 200 is arranged on the rack 100, and the pole piece winding mechanism 200 is used for winding a pole piece material belt.
In this embodiment, the pole piece material tape is sleeved on the feeding roller 310, the pole piece material tape is connected to the pole piece winding mechanism 200, the rotation of the feeding roller 310 and the winding of the pole piece material tape by the pole piece winding mechanism 200 gradually transfer the pole piece on the feeding roller 310 to the pole piece winding mechanism 200 for winding, and the pole piece needs to pass through the heating and drying assembly 410 and the rolling and shaping assembly 420 in sequence in the process of being conveyed from the feeding roller 310 to the pole piece winding mechanism 200. Heating and drying subassembly 410 is including heating box 412 and heating member 411, the pole piece is when convoluteing, the pole piece material area gets into heating cavity 412a from the first opening 411b of heating box 412, and leave heating box 412 from second opening 411c, heating box 412's heating member 411 can play the effect that risees the inside temperature of heating cavity 412a, heating box 412 can play the effect that prevents a large amount of heat overflows, improve heating member 411's heat utilization ratio, the pole piece material area heats cavity 412a and can carry out the heating and drying to pole piece material area when passing heating cavity 412a, make the water content of the electric core that pole piece and pole piece coiling formed reduce, and then help making the electric core that the pole piece coiling formed have better performance. When the pole piece is heated and dried, the high temperature improves the activity degree of the surface coating molecules of the pole piece and the current collector molecules, the internal stress accumulated inside the pole piece can be rapidly released when the activity degree of the molecules is improved, the problem of the performance reduction of the battery cell caused by the accumulation of the internal stress is avoided, and the battery cell formed by winding the pole piece has better performance.
After the pole piece is heated and dried, the internal stress of the coating of the pole piece and the current collector is released, the coating of the pole piece is slightly puffed in the heating process, and the puffing of the coating of the pole piece increases the unevenness degree of the surface of the pole piece due to disordered thermal motion of coating molecules, so that the contact and infiltration of the pole piece and electrolyte are poor, and the performance of the battery is influenced. Roll-in integer subassembly 420 includes two roll-in axles 421, two roll-in axles 421 support two surfaces of the pole piece area body jointly, roll-in order to carry out the pole piece, the pole piece material area leaves heating box 412 back from the second intercommunicating pore, the area body portion of pole piece will move to roll-in integer subassembly 420 department, because the pole piece has just been heated this moment, therefore the pole piece still is in the softened state, roll-in through two surfaces of two roll-in axles 421 to the pole piece this moment, can play the effect of promoting two surface smoothness of pole piece fast, and then help electrolyte to fully soak the pole piece, promote the performance of battery.
As shown in fig. 2, in one embodiment, the cell winding apparatus further includes a cell collection mechanism 600, where the cell collection mechanism 600 includes a cell transport plate 610 and a conveyor belt 620, one end of the cell transport plate 610 is disposed adjacent to the pole piece winding mechanism 200, and one end of the conveyor belt 620 is disposed adjacent to an end of the cell transport plate 610 away from the pole piece winding mechanism 200. After the pole piece winding mechanism 200 winds the positive pole piece, the negative pole piece and the diaphragm together to form the battery core, the battery core drops from the pole piece winding mechanism 200 to one end of the battery core transport plate 610, the battery core transport plate 610 is arranged in an inclined manner, the battery core rolls on the battery core transport plate 610 to the conveyor belt 620, and the conveyor belt 620 conveys the battery core to the next process position. The effect of collecting and transporting the battery cells is achieved.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A pole piece conveyor for conveying and winding a strip of pole pieces, said pole piece conveyor comprising:
the winding machine comprises a rack, a pole piece discharging mechanism, a winding pretreatment mechanism and a pole piece winding mechanism, wherein the pole piece discharging mechanism, the winding pretreatment mechanism and the pole piece winding mechanism are sequentially arranged along the winding direction of a pole piece material belt;
the pole piece discharging mechanism comprises a feeding roller shaft which is rotationally connected with the rack, and the feeding roller shaft is used for retracting the pole piece material belt;
the winding pretreatment mechanism comprises a heating and drying assembly and a rolling and shaping assembly, the heating and drying assembly comprises a heating box body and a heating element, the heating box body is connected with the rack, the heating box body is provided with a heating cavity, a first communicating port and a second communicating port, the heating cavity is respectively communicated with the first communicating port and the second communicating port, the heating element is arranged in the heating cavity, and the heating element is used for heating the pole piece material belt; the two rolling shafts are rotatably connected with the rack and are arranged adjacently, so that a rolling area is formed between the two rolling shafts, and the first communication port, the heating cavity, the second communication port and the rolling area are used for sequentially penetrating and conveying the pole piece material belt;
the pole piece winding mechanism is arranged on the rack and used for winding a pole piece material belt.
2. The pole piece transfer device of claim 1, wherein both of the roll shafts are disposed adjacent to the second communication port.
3. The pole piece conveying device according to claim 1, wherein the heating and drying assembly comprises a plurality of conveying rollers, the plurality of conveying rollers are all disposed in the heating cavity and are all rotatably connected with the heating box body, and the plurality of conveying rollers are used for winding and conveying the pole piece material belt between the first communicating port and the second communicating port.
4. The pole piece conveyor of claim 1, wherein the heating element comprises a first heating tube and a second heating tube, the first heating tube and the second heating tube being disposed opposite each other within the heating cavity, the first heating tube and the second heating tube being used together to heat the pole piece web.
5. The pole piece transport apparatus of claim 1 wherein the winding pre-treatment mechanism further includes a winding pre-heat roller rotatably coupled to the frame, the winding pre-heat roller positioned between the roll sizing assembly and the pole piece winding mechanism, the winding pre-heat roller for transporting the pole piece web between the roll sizing assembly and the pole piece winding mechanism, and the winding pre-heat roller for further heating the pole piece web.
6. The pole piece transport apparatus of claim 5 wherein the winding preheat roller shaft is disposed adjacent the pole piece winding mechanism.
7. The pole piece conveyor of claim 1 wherein the first communication port has a cross-section that is adapted to the cross-section of the pole piece web, and the second communication port has the same shape as the first communication port.
8. The pole piece conveying device according to claim 1, wherein the heating box body comprises a box body main body and a box door, the box door is hinged to the box body main body, the box body main body is provided with an opening, the opening is communicated with the heating cavity, the box door cover is arranged at the opening, and the heating cavity, the first communicating port and the second communicating port are all arranged on the box body main body.
9. A cell winding apparatus, comprising the pole piece transfer device of any one of claims 1 to 8.
10. The cell winding apparatus of claim 9, further comprising a cell collection mechanism, wherein the cell collection mechanism comprises a cell transport plate and a conveyor belt, wherein one end of the cell transport plate is disposed adjacent to the pole piece winding mechanism, and one end of the conveyor belt is disposed adjacent to an end of the cell transport plate away from the pole piece winding mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023198867.2U CN214226976U (en) | 2020-12-24 | 2020-12-24 | Pole piece conveying device and battery cell winding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023198867.2U CN214226976U (en) | 2020-12-24 | 2020-12-24 | Pole piece conveying device and battery cell winding equipment |
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| Publication Number | Publication Date |
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| CN214226976U true CN214226976U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023198867.2U Active CN214226976U (en) | 2020-12-24 | 2020-12-24 | Pole piece conveying device and battery cell winding equipment |
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| CN (1) | CN214226976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045399A1 (en) * | 2021-09-23 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Manufacturing device for electrode assembly |
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2020
- 2020-12-24 CN CN202023198867.2U patent/CN214226976U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045399A1 (en) * | 2021-09-23 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Manufacturing device for electrode assembly |
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