CN210467996U

CN210467996U - Laminated battery core production system

Info

Publication number: CN210467996U
Application number: CN201921074511.2U
Authority: CN
Inventors: 廖如虎; 曾钢; 虞永生; 戴亚
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-05-05
Anticipated expiration: 2029-07-10

Abstract

The utility model relates to a lamination electricity core production system, include: an anode conveying mechanism capable of providing an anode unit of a predetermined size; the isolating membrane packaging mechanism is arranged at the downstream of the anode conveying mechanism and used for clamping the anode unit between the isolating membranes; a lamination mechanism capable of being coupled to and laminating the barrier films; an electrostatic mechanism provided upstream of the separator encapsulation mechanism and capable of electrically charging the separator to adsorb the anode unit; the cathode conveying mechanism is arranged at the upstream of the lamination mechanism and can provide a cathode unit with a preset size to the surface of the separation membrane far away from the anode unit; and the cathode composite mechanism is arranged at the downstream of the cathode conveying mechanism, the isolating membrane can penetrate through the cathode composite mechanism to the lamination mechanism, and the cathode composite mechanism is used for connecting the cathode unit to the surface of the isolating membrane, which is far away from the anode unit. The embodiment of the utility model provides a lamination electricity core production system can improve lamination precision and efficiency, and area is little, is favorable to the manufacturing of electricity core.

Description

Laminated battery core production system

Technical Field

The utility model relates to an energy storage production facility technical field especially relates to a lamination electricity core production system.

Background

At present, laminated cells have the advantages of high rate and high energy density relative to winding cells, and can be manufactured into various special-shaped batteries according to different requirements, so that the laminated cells are generally adopted in the industry to manufacture the batteries.

Traditional lamination equipment, the die-cut shaping of pole piece is earlier with pole piece die-cut machine and adorn on the magazine, transfer the pole piece to the lamination machine after filling up a magazine on, carry out the lamination through the lamination platform, the lamination platform adopts linear motion mode superpose pole piece usually, specifically, in the production process of lamination electricity core, with the position that the lamination platform translation was to positive pole piece place earlier, in order to carry out the superpose of positive pole piece, after positive pole piece finished the stack, with the position that the lamination platform linear motion was to negative pole piece place again, carry out the superpose of negative pole piece again, such lamination mode has the defect such as lamination inefficiency and area is big, be unfavorable for the production manufacturing of lamination electricity core.

Therefore, a new laminated cell production system is needed.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a lamination electricity core production system can improve lamination efficiency, reduces area, is favorable to the manufacturing of lamination electricity core.

On the one hand, according to the embodiment of the utility model provides a laminated cell production system is proposed, include: an anode conveying mechanism capable of providing an anode unit of a predetermined size; the isolating membrane packaging mechanism is arranged at the downstream of the anode conveying mechanism and is used for clamping the anode unit between the isolating membranes; the lamination mechanism is arranged at the downstream of the isolating film packaging mechanism and can be connected with the isolating films so as to superpose the isolating films; the static mechanism is arranged at the upstream of the isolating film packaging mechanism and can charge the isolating film so as to adsorb the anode unit; the cathode conveying mechanism is arranged at the upstream of the lamination mechanism and can provide a cathode unit with a preset size; and the cathode composite mechanism is arranged at the downstream of the cathode conveying mechanism, the isolating membrane can penetrate through the cathode composite mechanism to the lamination mechanism, and the cathode composite mechanism is used for connecting the cathode unit to the surface of the isolating membrane, which is far away from the anode unit.

According to an aspect of an embodiment of the present invention, the laminated cell production system further comprises a dust removal mechanism; a dust removal mechanism is arranged between the anode conveying mechanism and the isolating membrane packaging mechanism to clean the anode unit; and/or a dust removal mechanism is arranged between the cathode conveying mechanism and the cathode compound mechanism to clean the cathode unit.

According to the utility model discloses an aspect, dust removal mechanism includes belt brush and dust extraction, and the belt brush can carry positive pole unit or negative pole unit to the dust on positive pole unit or the negative pole unit can be peeled off to the belt brush, and dust extraction suction and recovery dust.

According to an aspect of the embodiment of the present invention, the anode conveying mechanism includes: an anode unreeling device; the anode cutting device is arranged at the downstream of the anode anti-rolling device; the anode deviation correcting device is positioned between the anode unreeling device and the anode cutting device; the anode deviation correcting device can adjust the anode piece to be located in the cutting range of the anode cutting device, and the anode cutting device can cut the anode piece into a plurality of anode units.

According to an aspect of the embodiment of the present invention, the cathode conveying mechanism includes: a cathode unwinding device; the cathode cutting device is arranged at the downstream of the cathode unreeling device; the cathode deviation correcting device is positioned between the cathode unreeling device and the cathode cutting device; the cathode deviation correcting device can adjust the cathode piece to be located in the cutting range of the cathode cutting device, and the cathode cutting device can receive the cathode piece and cut the cathode piece into a plurality of cathode units.

According to one aspect of the embodiment of the present invention, the number of the cathode conveying mechanisms is two or more, and any two cathode conveying mechanisms are oppositely disposed on two sides of the isolation film packaging mechanism; and/or the number of the anode conveying mechanisms is more than two, and any two anode conveying mechanisms are oppositely arranged.

According to the utility model discloses an aspect, lamination electricity core production system further includes barrier film conveying mechanism, and barrier film conveying mechanism sets up between positive pole conveying mechanism and barrier film encapsulation mechanism, and barrier film conveying mechanism includes at least a set of barrier film conveyor who uses in pairs.

According to the utility model discloses an aspect, barrier film encapsulation mechanism includes guiding device and sealing device, and two barrier films can be received to guiding device, and sealing device has the heat-seal head, and the heat-seal head can be according to two barrier films of presetting interval heat-seal to make the fixed centre gripping of positive pole unit between two barrier films.

According to the utility model discloses an aspect, sealing device is provided with the heat-seal head including the heat-seal roller that uses in pairs on the outer peripheral face of heat-seal roller, and two heat-seal rollers that use in pairs can rotate in step and respective heat-seal head can dock each other along with heat-seal roller pivoted in-process.

According to an aspect of an embodiment of the present invention, the guiding device is disposed between the anode conveying mechanism and the cathode conveying mechanism; the guide device comprises a plurality of groups of guide roller sets which are arranged at intervals, each group of guide roller sets comprises clamping rollers used in pairs, the clamping rollers are used for clamping the transportation isolation film, and the heat sealing device is arranged at the upstream and the downstream of the guide device or between any two groups of guide roller sets; or the guide device comprises transmission assemblies used in pairs, each transmission assembly comprises a transmission wheel and a transmission belt in transmission fit with the transmission wheel, the transmission belts of the two transmission assemblies in the same pair are at least partially arranged in parallel and jointly clamp and convey the isolating film, and the heat sealing device is arranged at the upstream or the downstream of the guide device.

According to the utility model discloses an aspect, negative pole combined mechanism is including setting up in the hot pressing board group in negative pole conveying mechanism low reaches, and the hot pressing board group is formed with the clearance including relative first hot pressing board and the second hot pressing board that sets up between first hot pressing board and the second hot pressing board to the barrier film that supplies to be connected with anode unit and cathode unit passes through.

According to the utility model discloses an aspect, cathode compound mechanism is further including setting up in the protection component in cathode conveying mechanism low reaches, and first hot pressboard and second hot pressboard correspond respectively and are provided with protection component, protection component include the protecting band and with protecting band drive fit's guide pulley, every protection component's protecting band at least part extends into the clearance.

According to the utility model provides a lamination electricity core production system, can provide the positive pole unit through positive pole conveying mechanism, can be with positive pole unit centre gripping between the barrier film through barrier film encapsulation mechanism, negative pole conveying mechanism can provide the one side that positive pole unit was kept away from to the barrier film of predetermined size negative pole unit, and negative pole combined mechanism sets up in negative pole conveying mechanism's low reaches, the barrier film passes negative pole combined mechanism to lamination mechanism, make the negative pole unit and connect the negative pole unit in the surface that the positive pole unit was kept away from to the barrier film, and the barrier film that can direct continuous superpose through lamination mechanism is connected with positive pole unit and negative pole unit forms lamination electricity core, lamination efficiency is high, and make whole lamination electricity core production system area little. Meanwhile, the correspondingly arranged static mechanism enables the anode unit provided by the anode conveying mechanism to be directly attached to the isolating membrane under the action of static electricity, the lamination mechanism can meet the lamination requirement without reciprocating transfer, the lamination efficiency is further improved, the correspondingly arranged isolating membrane packaging structure can be combined with the static mechanism, double positioning is realized on the relative position of the anode unit and the isolating membrane, the positioning is more accurate, and the production and manufacturing of the battery cell are facilitated.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a laminated cell production system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a laminated cell production system according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an anode conveying mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an isolation film packaging mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cathode conveying mechanism according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a laminated cell production system according to another embodiment of the present invention;

fig. 7 is a schematic structural diagram of a cathode assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a laminated cell production system according to yet another embodiment of the present invention;

fig. 9 is a schematic structural diagram of a laminated cell production system according to yet another embodiment of the present invention;

fig. 10 is a schematic view of the structure of the guide device of fig. 9.

Wherein:

1-an anode conveying mechanism; 11-an anode unreeling device; 12-an anode cutting device; 13-anode deviation rectifying device; 14-an anode drive wheel; 15-anode guide roller;

2-isolating film packaging mechanism;

21-a heat sealing device; 211-heat sealing roller; 212-heat sealing; 22-a guide device; 221-a guide roller set; 23-a transmission assembly; 231-a transmission wheel; 232-a transmission belt;

3-an isolating membrane conveying mechanism; 31-an isolating membrane conveying device;

4-a dust removal mechanism; 41-belt brush; 42-a dust extraction device;

5-an electrostatic mechanism;

6-a cathode conveying mechanism; 61-cathode unwinding device; 62-cathode cutting means; 63-cathode deviation rectifying device; 64-a cathode drive wheel; 65-cathode guide roll;

7-cathode compound mechanism; 71-hot pressing plate group; 711-first hot press plate; 712-a second hot press plate; 713-gap; 72-a guard assembly; 721-protective tape; 722-a guide wheel; 73-a clamping guide; 731-a pulling roll; 732-a traction belt;

8-a lamination mechanism;

10-a barrier film; 101-an input terminal; 102-terminal end;

20-an anode sheet; 201-anode unit;

30-cathode plate; 301-cathode unit.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The directional words appearing in the following description are directions shown in the drawings, and do not limit the specific structure of the laminated cell production system of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

For better understanding of the present invention, a laminated cell production system according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 10.

Referring to fig. 1, fig. 1 shows a schematic structural diagram of a laminated cell production system according to an embodiment of the present invention, and fig. 2 shows a schematic diagram of a laminated cell production system according to an embodiment of the present invention.

The embodiment of the utility model provides a lamination electricity core production system, including positive pole conveying mechanism 1, barrier film encapsulation mechanism 2, lamination mechanism 8, mechanism of staticizing 5, negative pole conveying mechanism 6 and negative pole combined mechanism 7. The anode transport mechanism 1 can provide the anode unit 201 of a predetermined size. The isolating film packaging mechanism 2 is arranged at the downstream of the anode conveying mechanism 1, and the isolating film packaging mechanism 2 is used for clamping the anode unit 201 between the isolating films 10 to form a semi-packaging unit. A lamination mechanism 8 is provided downstream of the separator packaging mechanism 2, and the lamination mechanism 8 can be coupled with the separators 10 to stack the separators 10.

The static mechanism 5 is provided upstream of the separator packaging mechanism 2, and the static mechanism 5 can charge the separator 10 to attract the anode unit 201. The cathode conveying mechanism 6 is arranged upstream of the lamination mechanism 8, and the cathode conveying mechanism 6 can provide the cathode unit 301 with a predetermined size to the surface of the separation membrane 10 away from the anode unit 201. The cathode compound mechanism 7 is arranged at the downstream of the cathode conveying mechanism 6, the separation membrane 10 can penetrate through the cathode compound mechanism 7 to the lamination mechanism 8, and the cathode compound mechanism 7 is used for connecting the cathode unit 301 to the surface of the separation membrane 10 far away from the anode unit 201.

It should be noted that, in the present invention, the references to "upstream" and "downstream" above and below refer to the sequence of the laminated cell production sequence, and do not limit the spatial position between the components.

In some optional embodiments, when the laminated battery cell production system provided in the embodiments of the present invention is in use, the input end 101 of the isolation film 10 may be located between the anode conveying mechanism 1 and the isolation film packaging mechanism 2, so as to facilitate connection between the isolation film 10 and the anode unit 301. Alternatively, end 102 of separator 10 may be attached to lamination mechanism 8 to facilitate stacking of separator 10.

Referring to fig. 3, fig. 3 is a schematic structural diagram of an anode conveying mechanism 1 according to an embodiment of the present invention. The embodiment of the utility model provides an anode conveying mechanism 1 includes positive pole unwinding device 11, positive pole cutting device 12 and positive pole deviation correcting device 13, positive pole unwinding device 11 can release positive pole piece 20, positive pole cutting device 12 sets up in positive pole unwinding device 11 low reaches, positive pole deviation correcting device 13 is located between positive pole unwinding device 11 and the positive pole cutting device 12, positive pole deviation correcting device 13 can receive positive pole piece 20 and adjust positive pole piece 20 and be located the cutting range of positive pole cutting device 12 all the time, positive pole cutting device 12 can receive positive pole piece 20 and cut into a plurality of positive pole units 201 with positive pole piece 20.

In specific implementation, the anode unwinding device 11 may include an anode unwinding roller and a driving component for driving the anode unwinding roller to perform a rotation motion, the anode sheet 20 is wound on the anode unwinding roller, and the anode sheet 20 is released by the rotation of the anode unwinding roller. The anode deviation correcting device 13 can monitor whether the anode sheet 20 is within a predetermined range of the anode deviation correcting device 13 through a detecting device in real time or at certain time intervals, if not, the position of the anode sheet 20 needs to be adjusted, and then the anode sheet 20 is ensured to be within the cutting range of the anode cutting device 12 all the time. The anode cutting device 12 can be used for laser cutting or metal cutting, and if a metal cutter is used for cutting, a cam mechanism can be designed, and the cutting efficiency can be ensured through the continuous rotation of the motor.

Meanwhile, in order to facilitate the anode sheet 20 to be conveniently conveyed to the anode cutting device 12 at a uniform speed, optionally, an anode driving wheel 14 is further arranged between the anode deviation correcting device 13 and the anode cutting device 12, and the anode driving wheel 14 can be driven by a motor to provide power for the movement of the anode sheet 20. In addition, in order to enable the anode sheet 20 to be conveyed to the anode cutting device 12 according to a predetermined track, anode guide rollers 15 are respectively arranged between the anode unreeling device 11 and the anode deviation rectifying device 13 and between the anode deviation rectifying device 13 and the anode cutting device 12, and the traveling route of the anode sheet 20 is changed by the anode guide rollers 15 so as to meet the production requirement of the anode unit 201.

Referring to fig. 1 to fig. 3, the lamination system according to the embodiment of the present invention further includes a dust removing mechanism 4, and the dust removing mechanism 4 may include a belt brush 41 and a dust collecting device 42. In order to facilitate dust removal of the cut anode unit 201, a dust removal mechanism 4 is optionally provided between the anode conveying mechanism 1 and the separator packaging mechanism 2 to receive and clean the anode unit 201. Specifically, one end of the dust removing mechanism 4 faces the anode cutting device 12, and the other end faces the separator packaging mechanism 2, the dust removing mechanism 4 is specifically located upstream of the input end 101 of the separator 10, the anode unit 201 cut by the anode cutting device 12 falls to the belt brush 41 of the dust removing mechanism 4, and the anode sheet 20 can be conveyed to the direction of the separator packaging mechanism 2 and connected to the separator 10 through the belt brush 41. In the conveying process, the dust on the anode unit 201 can be stripped through the belt brush 41 and sucked and recovered through the dust suction device 42, so that the anode unit 201 connected to the isolating membrane 10 is ensured to be clean, and the produced laminated battery cell can better meet the electrical requirement of the laminated battery cell.

As an optional implementation mode, the embodiment of the utility model provides a lamination electricity core production system further includes barrier film conveying mechanism 3, barrier film conveying mechanism 3 sets up between positive pole conveying mechanism 1 and barrier film encapsulation mechanism 2, further be located between positive pole cutting device 12 and the barrier film encapsulation mechanism 2, when lamination electricity core production system is including being used for carrying out the dust removal mechanism 4 that removes dust to positive pole unit 201, barrier film conveying mechanism 3 is located this dust removal mechanism 4's low reaches, barrier film conveying mechanism 3 includes at least a set of barrier film conveying device 31 that uses in pairs, each barrier film conveying device 31 homoenergetic enough releases barrier film 10.

In some optional examples, the present invention may provide the barrier film conveying mechanism 3, which may include a set of barrier film conveying devices 31 arranged in pairs, and two barrier film conveying devices 31 in pairs are arranged on two sides of the barrier film packaging mechanism 2 relatively. Every barrier film conveyor 31 includes that barrier film unreels the roller and drives barrier film unreels the roller and is rotary motion's drive assembly, and barrier film 10 twines on barrier film unreels the roller, unreels the rotation of roller through the barrier film and realizes the release to barrier film 10.

In order to enable the anode unit 201 to be better attached to the isolation film 10, optionally, the static mechanism 5 is disposed close to the isolation film 10, and when the laminated battery cell production system includes the dust removal mechanism 4 for removing dust from the anode, the static mechanism 5 may be specifically disposed between the dust removal mechanism 4 and the input end 101 of the isolation film 10. Because the isolating membrane 10 on the side close to the anode piece 20 is made of PE material and can be attached with electric charges, the electric charges are released to the isolating membrane 10 through the static mechanism 5 to carry static electricity, and the purpose of adhering the anode unit 201 can be better achieved when the anode unit 201 is sent to the isolating membrane 10.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an isolation film packaging mechanism 2 according to an embodiment of the present invention. Optionally, the separator packaging mechanism 2 includes a guiding device 22 and a heat sealing device 21, the guiding device 22 can receive two separators 10, and optionally, the two separators 10 can be released by any one of the separators conveying device 31. The heat sealing device 21 has a heat seal 212, and the heat seal 212 heat-seals the two separators 10 at a predetermined interval so that the anode unit 201 is fixedly held between the two separators 10 in the formed semi-sealed unit.

By arranging the isolating film packaging mechanism 2 and limiting the isolating film packaging mechanism to comprise the structure, the anode unit 201 can be better sealed inside the two isolating films 10, and the purpose that the anode unit 201 does not displace in the movement process is achieved. Even if static electricity is gradually lost with the passage of time, the position of the anode sheet 20 can be secured, providing a double insurance for the position assurance of the anode unit 201.

Alternatively, the guide device 22 may include a plurality of sets of guide rollers 221, the plurality of sets of guide rollers 221 are disposed at intervals, in some alternative examples, the plurality of sets of guide rollers 221 may be disposed at intervals along the arrangement direction of the separator conveying mechanism 3 and the cathode composite mechanism 7, and the number of sets of guide rollers 221 may be determined according to the production line requirements, as long as the guide function of the separator 10 holding the anode unit 201 during transportation can be satisfied. Each set of guide rollers 221 includes nip rollers which are used in pairs and which nip and convey the separator 10 together, and the heat seal device 21 is disposed between any two sets of guide rollers 221, but, of course, in some other examples, the heat seal device 21 may be disposed upstream of the guide device 22, such as between the input end 101 of the separator and the guide device 22, or the heat seal device 21 may be disposed downstream of the guide device 22, such as between the guide device 22 and the cathode conveying mechanism 6, or between the cathode laminating mechanism 7 and the laminating mechanism 8. Through the arrangement, the transportation of the semi-packaging unit can be better satisfied, and the relative position of the anode unit 201 and the isolating membrane 10 can be better fixed.

In some optional examples, the heat sealing device 21 includes paired heat sealing rollers 211, a heat sealing head 212 is respectively disposed on an outer circumferential surface of each heat sealing roller 211, one end of the heat sealing head 212, which is away from the heat sealing rollers 211, may be in a pointed shape, the paired two heat sealing rollers 211 may rotate synchronously, and the respective heat sealing heads 212 may butt against each other during rotation of the heat sealing rollers 211, and the paired two heat sealing rollers 211 may be driven by a servo motor. The heat sealing device 21 in this form has a simple structure, is easy to control, and can meet the requirement for sealing between the anode unit 201 and the isolation film 10.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a cathode conveying mechanism 6 according to an embodiment of the present invention. The embodiment of the utility model provides a lamination electricity core production system, its negative pole conveying mechanism 6 include negative pole unwinding device 61, negative pole cutting device 62 and negative pole deviation correcting device 63, and negative pole unwinding device 61 can release negative pole piece 30, and negative pole cutting device 62 sets up in negative pole unwinding device 61 low reaches, and negative pole deviation correcting device 63 is located between negative pole unwinding device 61 and the negative pole cutting device 62. The cathode deviation rectifying device 63 is capable of receiving the cathode sheet 30 and adjusting the cathode sheet 30 to be always within the cutting range of the cathode cutting device 62, and the cathode cutting device 62 receives the cathode sheet 30 and cuts the cathode sheet 30 into a plurality of cathode units 301.

In specific implementation, the cathode unwinding device 61 may include a cathode unwinding roller and a driving component for driving the cathode unwinding roller to rotate, the cathode sheet 30 is wound on the cathode unwinding roller, and the cathode sheet 30 is released by the rotation of the cathode unwinding roller. The cathode deviation correcting device 63 can monitor whether the cathode sheet 30 is within a predetermined range of the cathode deviation correcting device 63 through a detecting device in real time or at certain time intervals, if not, the position of the cathode sheet 30 needs to be adjusted, and then the cathode sheet 30 is ensured to be within the cutting range of the cathode cutting device 62 all the time. The cathode cutting device 62 can also be used for laser cutting or metal cutting, for example, if a metal cutter is used for cutting, a cam mechanism can be designed, and the cutting efficiency can be ensured by the continuous rotation of the motor.

Meanwhile, in order to facilitate the cathode sheet 30 to be conveniently conveyed to the cathode cutting device 62 at a uniform speed, optionally, a cathode driving wheel 64 is further arranged between the cathode deviation rectifying device 63 and the cathode cutting device 62, and the cathode driving wheel 64 can be driven by a motor to provide power for the movement of the cathode sheet 30. In addition, in order to enable the cathode sheet 30 to be conveyed to the cathode cutting device 62 according to a predetermined track, cathode guide rollers 65 are respectively arranged between the cathode unreeling device 61 and the cathode deviation rectifying device 63 and between the cathode deviation rectifying device 63 and the cathode cutting device 62, and the traveling route of the cathode sheet 30 is changed by the cathode guide rollers 65 so as to meet the production requirement of the cathode unit 301.

Optionally, in order to facilitate dust removal of the cut cathode unit 301, a dust removal mechanism 4 is optionally disposed between the cathode conveying mechanism 6 and the cathode combining mechanism 7 to receive and clean the cathode unit 301. Specifically, one end of the dust removing mechanism 4 faces the cathode cutting device 62, and the other end faces the cathode combining mechanism 7, the cathode unit 301 cut by the cathode cutting device 62 falls to the belt brush 41 of the dust removing mechanism 4, and the cathode sheet 30 can be conveyed to the direction of the cathode combining mechanism 7 by the belt brush 41 and is connected to the separator 10. In the conveying process, the dust on the cathode unit 301 can be stripped through the belt brush 41 and sucked and recovered through the dust suction device 42, so that the cathode unit 301 connected to the isolating membrane 10 is ensured to be clean, and the produced laminated battery cell can better meet the electrical requirement of the laminated battery cell.

As an alternative embodiment, in order to better satisfy the formation of the laminated cell, the cathode conveying mechanisms 6 may be used in pairs, and in an alternative embodiment, the laminated cell production system may include a pair of cathode conveying mechanisms 6, that is, two cathode conveying mechanisms 6, and the two cathode conveying mechanisms 6 may be disposed oppositely, for example, the two cathode conveying mechanisms may be disposed at two sides of the separator 10 and staggered with each other in the extending direction of the separator 10 as shown in the above examples, so that the two cathode units 301 conveyed by the two cathode conveying mechanisms 6 to the half-packaging unit are staggered with each other.

Referring to fig. 6, fig. 6 is a schematic diagram of a laminated cell production system according to another embodiment of the present invention. As shown in fig. 6, in some other examples, two cathode conveying mechanisms 6 may also be symmetrically arranged on two sides of the separator 10, so that two cathode units 301 conveyed by two cathode conveying mechanisms 6 to the semi-encapsulation unit are symmetrically arranged to meet the arrangement requirements of laminated cells in different structural forms.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a cathode combining mechanism 7 according to an embodiment of the present invention. The embodiment of the utility model provides a cathode combined mechanism 7 is including setting up in the hot pressing board group 71 of cathode conveying mechanism 6 low reaches, and hot pressing board group 71 is including relative first hot pressing board 711 and the second hot pressing board 712 that sets up, is formed with gapped 713 between first hot pressing board 711 and the second hot pressing board 712 to the barrier film 10 that supplies to connect in having anode unit 201 and cathode unit 301 passes through. Since the cathode sheet 30 carries PVDF binder and the corresponding separator 10 is also accompanied by PVDF binder, the cathode unit 301 can be bonded to the separator 10 by the heat and pressure roller principle by providing the heat and pressure plate group 71, so as to achieve the purpose of sheet production.

As an alternative embodiment, the cathode compound mechanism 7 further includes a protection assembly 72 disposed downstream of the cathode conveying mechanism 6, the first hot pressing plate 711 and the second hot pressing plate 712 are respectively and correspondingly provided with a protection assembly 72, the protection assembly 72 includes a protection belt 721 and a guide wheel 722 in driving fit with the protection belt 721, and the protection belt 721 of each protection assembly 72 at least partially extends into the gap 713. By arranging the protective assembly 72, the cathode unit 301 can be protected on the basis of ensuring the heat sealing requirement of the hot-pressing plate group 71 on the cathode unit 301 and the separation film 10, and the damage to the cathode unit 301 caused by the direct contact of the hot-pressing plate group 71 and the cathode unit 301 is avoided.

Further, in order to ensure that the relative position of the semi-packaged unit to which the cathode unit 301 is attached can be kept stable when being transported to the hot platen group 71, the cathode complex mechanism 7 may optionally further include a clamping guide device 73, and the clamping guide device 73 may be located upstream of the hot platen group 71. The clamping and guiding device 22 may comprise a drawing roll 731 and a drawing belt 732 in driving cooperation with the drawing roll 731 to achieve the transport of the cathode unit 301 and the semi-encapsulated unit.

The lamination mechanism 8 is used for reciprocally laminating the separators 10, which sandwich the anode units 201 and are surface-adhered to the cathode units 301 and have a belt-like structure, so that the cathode units 301 and the anode units 201 are sequentially alternated and separated by the separators 10 to form laminated cells.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a laminated cell production system according to another embodiment of the present invention. It is understood that the above embodiments are all exemplified by the number of the anode conveying mechanisms 1, and in some other examples, the number of the anode conveying mechanisms 1 may also be more than two, wherein two anode conveying mechanisms 1 are oppositely arranged. In specific implementation, two anode conveying mechanisms 1 may be included, and the two anode conveying mechanisms 1 are oppositely arranged in the thickness direction of the separation film 10, so as to alternately provide the anode units 201 into the two separation films 10 of the same group.

Optionally, when the number of the anode conveying mechanisms 1 is more than two, an even number may be optionally used, each two anode conveying mechanisms 1 form one group, multiple groups of the anode conveying mechanisms 1 may be arranged at intervals in the width direction of the separation film 10, and each group of the anode conveying mechanisms 1 may be used to provide the anode units 201 into two separation films 10 of different groups, that is, one group of the anode conveying mechanisms 1 may be used to provide the anode units 201 to one group of the separation films 10. The number of the anode conveying mechanisms 1 is set to be more than two, the lamination efficiency of the battery cell can be further improved, and each anode conveying mechanism 1 can be correspondingly provided with one dust removal mechanism 4 when the lamination is specifically implemented so as to meet the dust removal requirement of each anode unit 201.

Referring to fig. 9 and 10 together, fig. 9 shows a schematic structural diagram of a laminated cell production system according to still another embodiment of the present invention, and fig. 10 shows a schematic structural diagram of the guiding device 22 in fig. 9. The embodiment of the present invention provides a laminated battery cell production system, the structural form of the guiding device 22 of the isolating membrane packaging mechanism 2 included in the laminated battery cell production system is not limited to the above embodiments, in some optional examples, as shown in fig. 9 and 10, the guiding device 22 may also include transmission assemblies 23 used in pairs, each transmission assembly 23 includes a transmission wheel 231 and a transmission belt 232 in transmission fit with the transmission wheel 231, and the transmission belts 232 of each pair of transmission assemblies 23 are at least partially arranged in parallel with each other and jointly clamp and convey the isolating membrane 10. In this example, the heat sealing device 21 mentioned in the above embodiments may be disposed upstream and downstream of the guiding device 22, and the disposition position of the heat sealing device 21 may also refer to the description of the above embodiments, and may also meet the requirement of sealing the separator 10 and the anode unit 201 with each other, which is not described herein again.

To sum up, the embodiment of the utility model provides a lamination electricity core production system, it can provide positive pole unit 201 through positive pole conveying mechanism 1, can be with positive pole unit 201 centre gripping between barrier film 10 through barrier film encapsulation mechanism 2. The cathode conveying mechanism 6 can provide a cathode unit 301 with a predetermined size to the side of the separation membrane 10 away from the anode unit 201, while the cathode compound mechanism 7 is arranged at the downstream of the cathode conveying mechanism 6, and the separation membrane 10 passes through the cathode compound mechanism 7 to the lamination mechanism 8, so that the cathode compound mechanism 7 can receive the cathode unit 301 and connect the cathode unit 301 to the surface of the separation membrane 10 away from the anode unit 201. The end 102 of the separator 10 is connected to the lamination mechanism 8, and the separator 10 connected with the anode unit 201 and the cathode unit 301 can be directly and continuously stacked and formed into a laminated cell through the lamination mechanism 8, so that the lamination efficiency is high, and the occupied area of the whole laminated cell production system is small. Meanwhile, the correspondingly arranged static mechanism 5 enables the anode unit 201 provided by the anode conveying mechanism 1 to be directly attached to the isolating membrane 10 under the action of static electricity, the lamination mechanism can meet lamination requirements without reciprocating transfer, lamination efficiency is further improved, the correspondingly arranged isolating membrane packaging structure 2 can be combined with the static mechanism 5, double positioning is realized on the relative position of the anode unit 201 and the isolating membrane 10, positioning is more accurate, production and manufacturing of the battery cell are facilitated, and therefore popularization and use are facilitated.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A laminated cell production system, comprising:

an anode conveying mechanism capable of providing an anode unit of a predetermined size;

the isolating membrane packaging mechanism is arranged at the downstream of the anode conveying mechanism and is used for clamping the anode unit between isolating membranes;

a lamination mechanism disposed downstream of the barrier film encapsulation mechanism, the lamination mechanism being connectable with the barrier films to stack the barrier films;

an electrostatic mechanism provided upstream of the separator encapsulation mechanism, the electrostatic mechanism being capable of charging the separator to adsorb the anode unit;

a cathode conveying mechanism disposed upstream of the lamination mechanism, the cathode conveying mechanism being capable of providing a cathode unit of a predetermined size;

and the cathode compound mechanism is arranged at the downstream of the cathode conveying mechanism, the isolating membrane can penetrate through the cathode compound mechanism to the lamination mechanism, and the cathode compound mechanism is used for connecting the cathode unit to the surface of the isolating membrane, which is far away from the anode unit.

2. The laminated cell production system of claim 1, further comprising a dust removal mechanism;

the dust removal mechanism is arranged between the anode conveying mechanism and the isolating film packaging mechanism so as to clean the anode unit; and/or the dust removal mechanism is arranged between the cathode conveying mechanism and the cathode composite mechanism so as to clean the cathode unit.

3. The laminated cell production system of claim 2, wherein the dust removal mechanism comprises a belt brush capable of transporting the anode unit or the cathode unit and capable of stripping dust from the anode unit or the cathode unit, and a dust suction device that sucks and recovers the dust.

4. The laminated cell production system of claim 1, wherein the anode delivery mechanism comprises:

an anode unreeling device;

the anode cutting device is arranged at the downstream of the anode anti-rolling device;

the anode deviation correcting device is positioned between the anode unreeling device and the anode cutting device;

the anode deviation correcting device can adjust the anode piece to be located in the cutting range of the anode cutting device, and the anode cutting device can cut the anode piece into a plurality of anode units.

5. The laminated cell production system of claim 1, wherein the cathode transport mechanism comprises:

a cathode unwinding device;

the cathode cutting device is arranged at the downstream of the cathode unreeling device;

the cathode deviation correcting device is positioned between the cathode unreeling device and the cathode cutting device;

the cathode deviation correcting device can adjust the position of a cathode sheet within the cutting range of the cathode cutting device, and the cathode cutting device can receive the cathode sheet and cut the cathode sheet into a plurality of cathode units.

6. The laminated cell production system of claim 1, wherein the number of the cathode conveying mechanisms is two or more, and any two of the cathode conveying mechanisms are oppositely arranged on two sides of the separator packaging mechanism;

and/or the number of the anode conveying mechanisms is more than two, and any two anode conveying mechanisms are oppositely arranged.

7. The laminated cell production system of any one of claims 1 to 6, further comprising a separator delivery mechanism disposed between the anode delivery mechanism and the separator encapsulation mechanism, the separator delivery mechanism comprising at least one set of paired separator delivery devices.

8. The laminated cell production system according to any one of claims 1 to 6, wherein the separator encapsulation mechanism comprises a guide device capable of receiving two separators and a heat sealing device having a heat sealing head capable of heat-sealing the two separators at a predetermined interval so that the anode unit is fixedly clamped between the two separators.

9. The laminated battery cell production system according to claim 8, wherein the heat sealing device comprises paired heat sealing rollers, the heat sealing rollers are arranged on the outer peripheral surfaces of the heat sealing rollers, the paired heat sealing rollers can rotate synchronously, and the respective heat sealing heads can be butted with each other during rotation of the heat sealing rollers.

10. The laminated cell production system of claim 8, wherein the guide device is disposed between the anode delivery mechanism and the cathode delivery mechanism;

the guide device comprises a plurality of groups of guide roller sets which are arranged at intervals, each group of guide roller sets comprises clamping rollers used in pairs, the clamping rollers are used for clamping and transporting the isolating membrane, and the heat sealing device is arranged at the upstream, the downstream or between any two groups of guide roller sets of the guide device;

or the guide device comprises transmission assemblies used in pairs, each transmission assembly comprises a transmission wheel and a transmission belt in transmission fit with the transmission wheel, the transmission belts of the two transmission assemblies in the same pair are at least partially arranged in parallel and jointly clamp and convey the isolating film, and the heat sealing device is arranged at the upstream or the downstream of the guide device.

11. The laminated cell production system of any one of claims 1 to 6, wherein the cathode compounding mechanism comprises a hot-press plate group disposed downstream of the cathode conveying mechanism, the hot-press plate group comprises a first hot-press plate and a second hot-press plate which are disposed opposite to each other, and a gap is formed between the first hot-press plate and the second hot-press plate for passing through the separation film connected with the anode unit and the cathode unit.

12. The laminated cell production system of claim 11, wherein the cathode assembly mechanism further comprises a protective assembly disposed downstream of the cathode conveying mechanism, the first and second hot press plates are respectively disposed with the protective assembly, the protective assembly comprises a protective belt and a guide wheel in driving engagement with the protective belt, and the protective belt of each protective assembly at least partially extends into the gap.