CN223245631U

CN223245631U - Pole piece transferring device, pole piece manufacturing equipment and solid-state battery production line

Info

Publication number: CN223245631U
Application number: CN202422130090.8U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Guangdong Lyric Robot Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2024-08-31
Filing date: 2024-08-31
Publication date: 2025-08-19
Anticipated expiration: 2034-08-31

Abstract

The utility model discloses a pole piece transferring device, pole piece manufacturing equipment and a solid battery production line, which relate to the technical field of solid battery manufacturing, wherein the pole piece transferring device comprises a material belt film conveying unit, a pole piece feeding station, a rubber frame forming station and a pole piece discharging station, which are sequentially arranged above the material belt film along a first direction, the material belt film is provided with a plurality of first adsorption holes, the pole piece transferring unit comprises a first clamping mechanism and a second clamping mechanism which are arranged at intervals along the first direction, the first clamping mechanism and the second clamping mechanism are both configured to clamp the material belt film, and the material belt film and a pole piece positioned on the material belt film are adsorbed in vacuum so as to sequentially transfer the pole piece on the material belt film from the pole piece feeding station to the rubber frame forming station and the pole piece discharging station. The utility model can improve the conveying precision of the pole piece in the rubber frame forming process, thereby improving the molding quality of the rubber frame on the pole piece.

Description

Pole piece transferring device, pole piece manufacturing equipment and solid-state battery production line

Technical Field

The utility model relates to the technical field of solid-state battery manufacturing, in particular to a pole piece transferring device, pole piece manufacturing equipment and a solid-state battery production line.

Background

The use of a solid-state battery instead of a liquid electrolyte and separator allows a higher energy density for the solid-state battery than for a liquid battery, and more energy can be stored at the same volume. At present, the existing solid-state battery production process is not mature, the solid electrolyte membrane and the electrode membrane are easy to deviate in the isostatic pressing treatment process, and meanwhile, the edge of the anode membrane and the edge of the cathode membrane are easy to bend and contact to cause short circuit, so that a glue frame is required to be covered on the pole pieces to improve the adhesiveness between the pole pieces and prevent the problems of deviation and bending contact. However, in the process of coating the frame on the pole piece, the formed frame is easily shifted due to the shift of the pole piece in the conveying process, so that the molding effect of the frame is poor, and the quality of the solid-state battery cell is further affected.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the pole piece transferring device, the pole piece manufacturing equipment and the solid-state battery production line, which can improve the conveying precision of the pole piece in the glue frame forming process, thereby improving the glue frame forming quality on the pole piece.

An embodiment of a first aspect of the present utility model provides a pole piece transfer device, including:

The material belt film conveying unit is configured to convey a material belt film along a first direction, a pole piece feeding station, a rubber frame forming station and a pole piece discharging station are sequentially arranged above the material belt film along the first direction, and a plurality of first adsorption holes are formed in the material belt film;

The pole piece transfer unit comprises a first clamping mechanism and a second clamping mechanism which are arranged at intervals along a first direction, wherein the first clamping mechanism and the second clamping mechanism are both configured to clamp the material belt film and vacuum adsorb the material belt film and the pole piece positioned on the material belt film so as to sequentially transfer the pole piece on the material belt film from the pole piece feeding station to the rubber frame forming station and the pole piece discharging station.

The pole piece transferring device has the advantages that in the process of carrying out rubber frame forming on the pole piece, the material tape film conveying unit conveys the material tape film along the first direction, the first clamping and conveying mechanism is used for stably clamping the part of the material tape film corresponding to the pole piece feeding station and placing the pole piece on the material tape film from the pole piece feeding station, at the moment, the first clamping and conveying mechanism can be used for carrying out the adsorption fixing function on the material tape film and the pole piece on the material tape film due to the fact that the first adsorption hole is formed in the material tape film, so that the first clamping and conveying mechanism can be used for stably conveying the material tape film and the pole piece from the pole piece feeding station to the rubber frame forming station, a rubber frame can be manufactured on the pole piece, the position deviation of the pole piece in the transferring process can be avoided, and accordingly the manufacturing accuracy of the rubber frame is improved, and after the rubber frame forming work is completed, the material tape film and the pole piece with the rubber frame can be stably transferred to the pole piece discharging station through the first clamping and conveying mechanism.

The first clamping mechanism and the second clamping mechanism are operated in a crossed mode, so that the manufacturing work of the rubber frame of the pole piece can be efficiently completed. Moreover, through setting up the material and taking the membrane, can avoid appearing first clamp send mechanism and second clamp send the mechanism receive the pollution of gluey frame waste material at gluey frame shaping in-process, and then lead to next pole piece to receive the pollution and take place the condition of offset.

In some embodiments of the present utility model, the first clamping mechanism and the second clamping mechanism each include an upper platen, a lower platen, and a driving component, the lower platen is provided with a vacuum air path and a plurality of second adsorption holes, the plurality of second adsorption holes are communicated with the vacuum air path and configured to be capable of vacuum-adsorbing the material belt film and a pole piece located on the material belt film, and the driving component is configured to be capable of driving the upper platen and the lower platen to approach each other to clamp the material belt film.

In some embodiments of the present utility model, the upper platen is provided with two upper platens, the two upper platens are respectively located at two opposite sides of the lower platen in a first direction, and the plurality of second adsorption holes are located between the two upper platens, and/or the driving part comprises a first linear driving member configured to drive the upper platen to move in an up-down direction and a second linear driving member configured to drive the lower platen to move in an up-down direction.

In some embodiments of the utility model, the tape film has a bearing surface with a width greater than the width of the pole piece.

In some embodiments of the utility model, the web film transport unit includes an unwind mechanism configured to unwind the web film and a first wind-up mechanism configured to wind up the web film.

In some embodiments of the present utility model, the material tape film conveying unit further includes a second winding mechanism, the material tape film is formed with a plurality of adhesive frames sequentially and alternately distributed along an extending direction of the material tape film, the material tape film is covered with release paper for covering the adhesive frames, and the second winding mechanism is configured to peel and wind the release paper from the material tape film, so that the adhesive frames can be transferred onto a pole piece at the adhesive frame forming station.

A second aspect of the embodiments of the present utility model provides a pole piece manufacturing apparatus comprising a frame molding device configured to manufacture a frame on a pole piece located at the frame molding station, and a pole piece transfer device as described in the first aspect of the embodiments.

The pole piece manufacturing equipment according to the second aspect of the embodiment of the utility model has the advantages that the pole piece transferring device transfers the material belt film and the pole piece on the material belt film to the rubber frame forming station stably through the vacuum adsorption effect, so that the high conveying precision of the pole piece is ensured, the position of the pole piece is not easy to deviate, the rubber frame forming device can manufacture the rubber frame on the pole piece with high precision, the forming effect of the rubber frame is ensured to be good, and the manufacturing quality of the solid-state battery is further improved.

In some embodiments of the present utility model, the pole piece manufacturing apparatus further includes a pole piece turning device, the glue frame forming device and the pole piece transferring device are both provided with two and are both arranged at intervals along the first direction, and the pole piece turning device is provided between the two pole piece transferring devices and is configured to turn and transfer the pole piece so that the glue frames are formed on two opposite surfaces of the pole piece.

In some embodiments of the utility model, the pole piece manufacturing apparatus further comprises a pole piece drying device configured to cure the glue frame on the pole piece, and/or the pole piece manufacturing apparatus further comprises an appearance detection device configured to detect the appearance of the pole piece molded with the glue frame.

An embodiment of a third aspect of the present utility model provides a solid-state battery production line, which includes the pole piece manufacturing apparatus according to the embodiment of the second aspect.

According to the solid-state battery production line disclosed by the embodiment of the third aspect of the utility model, at least the following beneficial effects are that the pole piece manufacturing equipment is used, so that the glue frame manufacturing process on the pole piece can be efficiently and accurately completed, the excellent adhesiveness between the pole pieces is ensured, the problems that the solid electrolyte film and the electrode film are easy to deviate and the anode film and the cathode film are easy to bend and contact at the edge and short circuit are prevented in the isostatic pressing process, and the manufacturing quality of the solid-state battery can be further improved.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic perspective view of a pole piece transfer device according to an embodiment of the present utility model;

fig. 2 is a top view of a pole piece transfer device provided in accordance with an embodiment of the present utility model;

Fig. 3 is a schematic perspective view of a gripping mechanism in a pole piece transfer unit according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a gripping mechanism in a pole piece transfer unit provided in accordance with an embodiment of the present utility model;

fig. 5 is a schematic structural view of a pole piece manufacturing apparatus provided according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a pole piece manufacturing apparatus according to another embodiment of the present utility model;

Fig. 7 is a schematic structural view of a vacuum belt conveyor in a pole piece manufacturing apparatus according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a tape film according to an embodiment of the present utility model;

fig. 9 is a schematic structural diagram of a battery cell according to an embodiment of the present utility model;

fig. 10 is a schematic diagram of the working principle of the pole piece transferring device according to the embodiment of the utility model.

The device comprises the following components of 110, a negative pole piece, 120, a positive pole piece, 130, a rubber frame, 210, a material belt film, 211, a first adsorption hole, 220, release paper, 230, a composite film, 300, a pole piece transferring unit, 310, a clamping and conveying mechanism, 311, an upper pressing plate, 312, a lower pressing plate, 313, a second adsorption hole, 314, a first lifting seat, 315, a second lifting seat, 316, a second linear driving piece, 317, a limiting block, 318, a supporting seat, 319, a first linear driving piece, 320, a base, 400, a rubber frame forming device, 510, a transferring manipulator, 520, a pole piece turning device, 530, a vacuum belt conveying device, 531, a conveying belt, 532, a vacuum adsorption hole, 533, a driven roller, 534, a driving roller, 535, a vacuum adsorption box, 610, an unreeling mechanism, 620, a first reeling mechanism, 630, a second reeling mechanism, 700, a pole piece magazine, 810, a correction platform, 820, an appearance detecting device, 900 and a pole piece drying device.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, for example, as a fixed connection, a removable connection, or an integral connection, as a mechanical connection, as an electrical connection, as a direct connection, as an indirect connection via an intermediary, or as a communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The solid-state lithium metal battery is a novel battery which uses solid electrolyte to replace a diaphragm and liquid electrolyte used in the traditional lithium ion battery, so that a graphite anode or a silicon anode in the traditional lithium ion battery can be replaced by the lithium metal anode, the energy density of the lithium metal anode is higher than that of the traditional anode, and the battery is allowed to store more energy in the same volume.

However, the existing solid-state battery production process is not mature, and the solid electrolyte membrane in the solid-state battery is difficult to be closely attached to the electrode membrane in comparison with a liquid electrolyte capable of sufficiently contacting with the electrode membrane, resulting in poor quality of the solid-state battery. For this purpose, the solid electrolyte membrane and the electrode membrane can be isostatically pressed by the operation of an isostatic pressing device. However, during the isostatic pressing process, the solid electrolyte membrane and the electrode membrane are easily deviated due to the lateral force in the isostatic pressing container, which affects the manufacturing quality of the solid battery, and in addition, during the isostatic pressing process or during lamination, the edge of the anode membrane and the edge of the cathode membrane are easily bent and contacted due to the pressing effect, which causes the short circuit problem.

Based on the above, a glue frame is required to be coated on the pole pieces to improve the adhesiveness between the pole pieces, so that the problems of offset between the solid electrolyte membrane and the electrode membrane and bending contact between the pole pieces are avoided. As shown in fig. 9, the surface of the negative electrode plate is adhered with a solid electrolyte membrane, the rubber frame is generally square ring-shaped, and the rubber frame is arranged around the periphery of the negative electrode plate and fixedly connected with the surface of the negative electrode plate. In the lamination process, the positive pole piece and the negative pole piece are overlapped along the up-down direction, moreover, the inner edge of the rubber frame is attached to the outer edge of the positive pole piece, and the battery cell is formed by the crossed lamination of the positive pole piece and the negative pole piece, and at the moment, the positive pole piece is positioned in an area formed by the two negative pole pieces and the two rubber frames.

However, in the process of coating the rubber frame on the pole piece, the situation that the position of the rubber frame formed on the pole piece is deviated due to the fact that the pole piece is deviated in the conveying process easily occurs, so that the molding effect of the rubber frame is poor, and the quality of the solid-state battery cell is affected.

Based on the problems, the utility model provides a pole piece transferring device, pole piece manufacturing equipment and a solid-state battery production line, which can improve the conveying precision of a pole piece in a rubber frame forming process, so that the rubber frame forming quality on the pole piece can be improved.

A pole piece transfer device, a pole piece manufacturing apparatus, and a solid-state battery production line provided according to an embodiment of the present utility model are described below with reference to fig. 1 to 10.

As shown in fig. 1 to 5, 8 and 9, the pole piece transferring device according to the first aspect of the present utility model can be applied to pole piece manufacturing equipment, and the pole piece transferring device is used for stably transferring pole pieces, ensuring high pole piece transferring precision, and avoiding position deviation of the pole pieces in the transferring process, so that the forming work of the adhesive frame 130 can be efficiently and accurately completed on the surface of the pole pieces.

The pole piece transfer device is provided with a first direction, a second direction and an up-down direction, wherein the first direction, the second direction and the up-down direction are perpendicular to each other. In the present embodiment, the first direction is assumed to be the left-right direction, and the second direction is assumed to be the front-rear direction.

The pole piece transferring device comprises a material belt film conveying unit and a pole piece transferring unit 300.

The web film conveying unit is configured to be capable of conveying the web film 210 in a first direction, wherein the web film 210 is formed with a plurality of first adsorption holes 211. In this embodiment, the first adsorption holes 211 are circular holes, and the plurality of first adsorption holes 211 are arranged in an array, and the axes of the first adsorption holes 211 extend in the up-down direction. It is understood that the tape film 210 may be a plastic film such as a PET film or a PC film. The size, shape and arrangement of the first adsorption holes 211 may be selected according to practical situations, and are not particularly limited herein.

Further, the material belt film 210 has a bearing surface, and the bearing surface is used for providing a placement position for the pole piece and providing a supporting function. The width of the bearing surface is larger than that of the pole piece. It will be appreciated that the width direction of the carrying surface of the tape film 210 is the same as the width direction of the pole piece. The extension direction of the material tape film 210 is the left-right direction, the width direction of the material tape film 210 is the front-back direction, the width direction of the pole piece is the front-back direction, and the length direction of the pole piece is the left-right direction. The width dimension of the carrying surface of the material belt film 210 is designed to be larger than the width dimension of the pole piece, when the colloid forms the colloid frame 130 on the upper surface of the pole piece in a coating mode or a screen printing mode, even if the colloid overflows to the outer side of the pole piece, the material belt film 210 can accept the overflowed colloid, so that the situation that the surface of an equipment platform such as a pole piece transferring unit is polluted by colloid waste materials, the next piece of pole piece is polluted, and the position of the pole piece is deviated is avoided.

Of course, it is not excluded that in other embodiments the width of the carrying surface of the web film 210 is equal to the width of the pole piece.

A pole piece feeding station, a rubber frame forming station and a pole piece discharging station are arranged above the material belt film 210, wherein the pole piece feeding station, the rubber frame forming station and the pole piece discharging station are sequentially arranged along the first direction of the material belt film 210. It will be appreciated that after the pole piece is placed on the upper surface of the tape film 210 from the pole piece loading station, the tape film 210 can be moved in a first direction and the pole piece is sequentially fed from the pole piece loading station to the frame molding station and the pole piece blanking station. Since the rubber frame forming device 400 can be arranged at the rubber frame forming station, when the pole piece moves to the rubber frame forming station along with the material belt film 210, the rubber frame 130 can be manufactured on the pole piece by using the rubber frame forming device 400, and when the rubber frame 130 is manufactured, the pole piece moves to the pole piece blanking station along with the material belt film 210 so as to take away the pole piece with the rubber frame 130 in a manual mode or a mechanical automation mode.

Specifically, the structure of the material tape film conveying unit includes an unreeling mechanism 610 and a first reeling mechanism 620. Wherein the unwind mechanism 610 is configured to unwind the web of film 210 and the first wind-up mechanism 620 is configured to wind up the web of film 210. Through the cooperation of unreeling mechanism 610 and first rolling mechanism 620 for material takes membrane 210 to follow the first direction and remove and pass through pole piece material loading station, gluey frame shaping station and pole piece unloading station in proper order, make the pole piece can place on material takes membrane 210 in pole piece material loading station department, moreover, can take away the pole piece on the material takes membrane 210 in pole piece unloading station department.

It will be appreciated that unwind mechanism 610 may be an existing unwind that is capable of continuously releasing outfeed belt film 210 with a motor driven unwind roller. The first winding mechanism 620 may be an existing winding machine, and in the case of a motor driven winding roller, may continuously wind the material web 210. In order to ensure that the unreeling speed, the pole piece transferring speed and the reeling speed are coordinated, a belt buffering device can be added between the unreeling mechanism 610 and the pole piece feeding station and between the pole piece discharging station and the first reeling mechanism 620. The material belt buffer device is of an existing structure, and a specific structure and a working principle thereof are understood by those skilled in the art and are not specifically described herein.

The pole piece transfer unit 300 includes a pinch mechanism 310 and a base 320. The two pinching mechanisms 310 are provided, and the two pinching mechanisms 310 are provided on the base 320. In the present embodiment, the two pinch mechanisms 310 are respectively provided as a first pinch mechanism and a second pinch mechanism. The first clamping mechanism and the second clamping mechanism are arranged at certain intervals along the first direction, the first clamping mechanism is located at one side of the material belt film 210 in the width direction, and the second clamping mechanism is located at the other side of the material belt film 210 in the width direction, so that the first clamping mechanism and the second clamping mechanism cannot generate interference influence in the moving process.

Moreover, the first clamping mechanism and the second clamping mechanism are configured to clamp the material belt film 210, and vacuum adsorb the material belt film 210 and the pole piece positioned on the material belt film 210, so as to sequentially transfer the pole piece on the material belt film 210 from the pole piece feeding station to the rubber frame forming station and the pole piece discharging station.

It can be appreciated that each clamping mechanism 310 can apply a clamping action to the material belt film 210, so that the material belt film 210 can move along the first direction under the driving action of the clamping mechanism 310, meanwhile, because the material belt film 210 is provided with a plurality of first adsorption holes 211, each clamping mechanism 310 can apply a vacuum adsorption action to the material belt film 210 and the pole piece thereon under the condition of clamping the material belt film 210, so that the material belt film 210 and the pole piece can be kept stable under the transferring action of the clamping mechanism 310, and the position deviation is not easy to occur, and in addition, in the molding process of the rubber frame 130, the pole piece is kept in a fixed state due to the adsorption fixing action, which is beneficial to improving the molding accuracy of the rubber frame 130.

As shown in fig. 10, fig. 10 (a) is a schematic diagram when the first clamping mechanism sends the negative electrode sheet 110 to the frame molding station and the second clamping mechanism sends the negative electrode sheet 110 to the sheet blanking station, fig. 10 (b) is a schematic diagram when the first clamping mechanism sends the negative electrode sheet 110 to the frame molding station and the second clamping mechanism returns to the sheet feeding station, and fig. 10 (c) is a schematic diagram when the first clamping mechanism sends the negative electrode sheet 110 to the sheet blanking station and the second clamping mechanism sends the negative electrode sheet 110 to the frame molding station. The first clamping mechanism and the second clamping mechanism can both apply clamping and fixing effects on the material belt film 210 and vacuum adsorption effects on the material belt film 210 and the negative electrode plate 110 thereon through the cooperation of the upper pressing plate 311 and the lower pressing plate 312.

When the first clamping mechanism is positioned at the pole piece feeding station and performs a clamping action on the part of the material belt film 210 corresponding to the pole piece feeding station, the second clamping mechanism is positioned at the rubber frame forming station and performs a clamping action on the part of the material belt film 210 corresponding to the rubber frame forming station, as shown in fig. 10 (a), after the rubber frame 130 forming work is completed, the second clamping mechanism drives the material belt film 210 and the pole piece with the rubber frame 130 thereon to move to the pole piece discharging station so as to take the pole piece away from the pole piece discharging station, and meanwhile, the first clamping mechanism drives the material belt film 210 and the pole piece thereon to move to the rubber frame forming station so as to manufacture the rubber frame 130 on the pole piece. As shown in fig. 10 (b), when the pole piece with the adhesive frame 130 is removed at the pole piece blanking station, the second clamping mechanism moves reversely, returns to the pole piece feeding station, and applies a clamping action to the portion of the material belt film 210 corresponding to the pole piece feeding station. As shown in fig. 10 (c), after the pole piece transferred by the first clamping mechanism completes the molding operation of the glue frame 130, the first clamping mechanism will send the material belt film 210 and the pole piece with the glue frame 130 thereon to the pole piece blanking station, and the second clamping mechanism will transfer the material belt film 210 and the pole piece thereon from the pole piece feeding station to the glue frame molding station.

And so on, the first clamping mechanism and the second clamping mechanism can be operated in a crossed manner, and the material belt film 210 and the pole pieces on the material belt film are sequentially transferred to the rubber frame forming station and the pole piece blanking station from the pole piece feeding station in turn.

The structure of the first clamping mechanism is identical with that of the second clamping mechanism. Specifically, each of the clamping mechanisms 310 includes an upper platen 311, a lower platen 312, and a driving member.

Wherein, the lower pressure plate 312 is provided with a vacuum air path and a plurality of second adsorption holes 313. The axial direction of each second adsorption hole 313 extends along the up-down direction, the second adsorption holes 313 may be round holes, elongated holes, and the like, and the plurality of second adsorption holes 313 are arranged in an array. The plurality of second adsorption holes 313 are communicated with a vacuum gas circuit, and the vacuum gas circuit is connected with a vacuumizing device through a pipeline. Further, the second adsorption hole 313 is configured to vacuum adsorb the tape film 210 and the pole piece located on the tape film 210.

It is to be understood that the size, shape and arrangement of the second adsorption holes 313 may be set according to actual requirements, and are not particularly limited herein. The lower pressure plate 312 is located at the lower side of the material belt film 210, and when vacuumizing, the second adsorption hole 313 can supply negative pressure airflow to flow, so that the second adsorption hole 313 can apply vacuum adsorption to the material belt film 210, so that the material belt film 210 is stably fixed on the lower pressure plate 312, and the second adsorption hole 313 is communicated with the first adsorption hole 211. When the pole piece is transferred to the pole piece blanking station, the vacuumizing work can be stopped, and the vacuum adsorption effect on the material belt film 210 and the pole piece is relieved.

In the present embodiment, the upper platen 311 is provided in two, and the length direction of the upper platen 311 extends along the width direction of the tape film 210. One of the upper pressing plates 311 is located at one side of the lower pressing plate 312 in the first direction, the other upper pressing plate 311 is located at the opposite side of the lower pressing plate 312 in the first direction, and a plurality of second adsorption holes 313 are located between the two upper pressing plates 311. So designed, the two ends of the material belt film 210 in the first direction are clamped by the upper pressing plate 311 and the lower pressing plate 312 together, and the pole piece is positioned between the two upper pressing plates 311. It will be appreciated that multiple sets of second suction holes 313 may be provided on the lower platen 312, and then multiple pole pieces may be placed on the tape film 210 on the upper surface of the lower platen 312.

Of course, it is not excluded that in other embodiments, the upper platen 311 is provided with only one piece.

The driving member is configured to be able to drive the upper platen 311 and the lower platen 312 toward each other to sandwich the tape film 210, and to drive the upper platen 311 and the lower platen 312 away from each other to release the tape film 210. Specifically, the driving component includes a first linear driving element 319 and a second linear driving element 316, where an output end of the first linear driving element 319 is fixedly connected to one end of the upper platen 311, the first linear driving element 319 is configured to drive the upper platen 311 to move in an up-down direction, an output end of the second linear driving element 316 is fixedly connected to one end of the lower platen 312, and the second linear driving element 316 is configured to drive the lower platen 312 to move in an up-down direction. It is understood that the first linear drive 319 and the second linear drive 316 may be electric cylinders, hydraulic cylinders, pneumatic cylinders, or the like.

The upper and lower pressing plates 311 and 312 can approach each other in the up-down direction by the cooperation of the first and second linear driving members 319 and 316 to clamp the material tape film 210 and adsorb and fix the material tape film 210 and the pole piece by vacuum adsorption, thereby completing the stable transfer of the pole piece, and the upper and lower pressing plates 311 and 312 can move away from each other in the up-down direction to release the clamping of the material tape film 210 and simultaneously release the vacuum adsorption of the material tape film 210 and the pole piece, thereby completing the blanking of the pole piece.

In this embodiment, each gripping mechanism 310 further includes a first lifting base 314, a second lifting base 315, and a support 318. The first linear driving member 319 and the second linear driving member 316 are telescopic cylinders and are mounted on a support 318, and the support 318 is provided on a base 320. The first lifting seat 314 and the second lifting seat 315 are mounted on the support 318 through the sliding rail and sliding block pair, so that the first lifting seat 314 and the second lifting seat 315 can move stably along the up-down direction, the movable rod of the first linear driving piece 319 is fixedly connected with the first lifting seat 314, and the movable rod of the second linear driving piece 316 is fixedly connected with the second lifting seat 315. The upper end of the first lifting seat 314 is fixedly connected with one end, far away from the material belt film 210, of the upper pressing plate 311, and the upper end of the second lifting seat 315 is fixedly connected with one end, far away from the material belt film 210, of the lower pressing plate 312.

Further, a limiting block 317 is disposed at the upper end of the first lifting seat 314, and the number of limiting blocks 317 is not limited to one. The limiting block 317 is mounted on the first lifting seat 314 through a bolt, and the limiting block 317 can be abutted against the second lifting seat 315. It can be appreciated that the first linear driving member 319 drives the first lifting seat 314 and the upper pressing plate 311 to move downward, the second linear driving member 316 drives the second lifting seat 315 and the lower pressing plate 312 to move upward, and when the upper pressing plate 311 and the lower pressing plate 312 move in place, the limiting block 317 will generate an abutting and limiting effect with the second lifting seat 315, so as to prevent the upper pressing plate 311 and the lower pressing plate 312 from further approaching to press the damaged belt film 210. The height of the limiting block 317 relative to the first lifting seat 314 can be adjusted according to the thickness of the material belt film 210.

In some embodiments, as shown in fig. 5, the web film transport unit further includes a second take-up mechanism 630.

The surface of the material belt film 210 is formed with a plurality of glue frames 130, the glue frames 130 are sequentially distributed at certain intervals along the extending direction of the material belt film 210, and release paper 220 is covered on the surface of the material belt film 210, and the release paper 220 is used for covering the glue frames 130 to protect the glue frames 130. The second winding mechanism 630 is configured to peel and wind the release paper 220 from the tape film 210 to enable the frame 130 to be transferred to the pole piece at the frame molding station.

It is appreciated that the second winding mechanism 630 is an existing winding machine. The material tape film 210, the adhesive frame 130 and the release paper 220 together form a composite film 230, the unreeling mechanism 610 can continuously unreel the composite film 230, at this time, the second reeling mechanism 630 can peel the release paper 220 on the composite film 230, so that the adhesive frame 130 on the composite film 230 is in a bare state, the adhesive frame 130 can be transferred to the lower surface of the pole piece at the adhesive frame forming station in a pressing mode, and the first reeling mechanism 620 can reel the material tape film 210, and the material tape film 210 and the adhesive frame 130 are separated. At this time, the adhesive frame 130 may avoid the first adsorption hole 211 on the tape film 210. When the adhesive frame 130 is in an exposed state, the pole piece can be placed on the adhesive frame 130 from the pole piece feeding station, so that the adhesive frame 130 is enclosed along the edge of the pole piece, and the circumferential side of the pole piece and the adhesive frame 130 are subjected to lamination treatment through the existing adhesive frame 130 lamination mechanism.

When the pole piece transferring device provided in the embodiment of the present utility model is used for molding the adhesive frame 130 on the pole piece, the material belt film conveying unit can convey the material belt film 210 along the first direction to provide the supporting function and the function of collecting the colloid waste for the pole piece, at this time, the pole piece (the negative pole piece 110) which has been processed by the cutting piece can be placed on the part of the material belt film 210 corresponding to the pole piece feeding station in a manual mode or a mechanical automation mode, and at this time, at least one surface of the pole piece is attached with the solid electrolyte membrane.

Meanwhile, the pole piece transfer unit 300 is started, and the part of the material belt film 210 corresponding to the pole piece feeding station is clamped stably by using the upper pressing plate 311 and the lower pressing plate 312 in the first clamping mechanism, so that the material belt film 210 of the part is in a fixed state, and the pole piece is placed on the material belt film 210 from the pole piece feeding station. At this time, since the material belt film 210 is provided with the first adsorption hole 211 and the lower pressure plate 312 is provided with the second adsorption hole 313, the first clamping mechanism can apply a certain adsorption fixing effect to the material belt film 210 and the pole piece thereon, so that the first clamping mechanism can stably convey the material belt film 210 and the pole piece from the pole piece feeding station to the rubber frame forming station, so that the rubber frame 130 is manufactured on the pole piece, the conveying precision of the pole piece can be improved, the pole piece is ensured not to generate position offset in the conveying process, and the manufacturing precision of the rubber frame 130 is improved.

After the molding work of the rubber frame 130 is completed, the first clamping mechanism stably transfers the material belt film 210 and the pole piece with the rubber frame 130 to a pole piece blanking station so as to complete the work of manual blanking or automatic blanking.

When the first clamping mechanism moves the pole piece to the rubber frame forming station, the second clamping mechanism moves to the pole piece feeding station, and the material belt film 210 positioned at the pole piece feeding station is clamped and fixed, and the vacuum adsorption is applied to the material belt film 210 and the pole piece thereon. When the first clamping mechanism transfers the pole piece with the formed rubber frame 130 to the pole piece blanking station, the second clamping mechanism transfers the pole piece to the rubber frame forming station to manufacture the rubber frame 130 on the pole piece.

The first clamping mechanism and the second clamping mechanism are operated in a crossed mode, so that the manufacturing work of the rubber frame 130 of the pole piece can be completed efficiently and accurately. Moreover, through setting up the material and taking membrane 210, can avoid appearing first clamp send mechanism and second clamp send the mechanism receive the pollution of gluey frame 130 waste material in gluey frame 130 shaping in-process, and then lead to next pole piece to receive the pollution and take place the condition of position deviation.

As shown in fig. 1 to 10, the pole piece manufacturing apparatus according to the second aspect of the embodiment of the present utility model can accomplish the work of manufacturing the glue frame 130 on the surface of the pole piece.

The pole piece manufacturing equipment comprises a rubber frame forming device 400 and a pole piece transferring device according to the embodiment of the first aspect. Wherein the frame molding device 400 is located above the pole piece transfer device, the frame molding device 400 is configured to manufacture the frame 130 on the pole piece located at the frame molding station. The pole piece transfer device can stably send the material belt film 210 and the pole piece on the material belt film to the position of the glue frame forming station, so that the pole piece positioned at the glue frame forming station is ensured to be accurate in position, and the forming accuracy of the glue frame 130 on the pole piece is further improved.

It will be appreciated that in some examples, the frame molding apparatus 400 may be a screen printing mechanism or a dispensing and glue application mechanism, and the frame 130 can be manufactured on the upper surface of the pole piece. In other examples, the frame molding device 400 may be a thermal pressing mechanism, and the frame 130 can be manufactured on the lower surface of the pole piece, where the frame 130 is formed on the surface of the tape film 210, and the frame 130 on the tape film 210 is transferred to the lower surface of the pole piece through a thermal pressing process.

In some embodiments, as shown in fig. 6, the pole piece manufacturing apparatus further includes a pole piece flipping device 520. Wherein, glue frame forming device 400 and pole piece transfer device are the one-to-one setting in the quantity, glue frame forming device 400 is equipped with two, and two glue frame forming device 400 set up along first direction interval, and pole piece transfer device also is equipped with two, and two pole piece transfer devices set up along first direction interval. The pole piece turning device 520 is disposed between the two pole piece transferring devices, and the pole piece turning device 520 is configured to turn and transfer the pole piece so that the opposite two surfaces of the pole piece are formed with the adhesive frame 130.

It is understood that the pole piece turn-over device 520 may include a manipulator and a vacuum chuck, where the pole piece is absorbed by the vacuum chuck, and the motion of the vacuum chuck is controlled by the manipulator, so that the vacuum chuck can drive the pole piece to turn over 180 ° and the upper surface of the pole piece turns down. The manipulator can include revolving cylinder and two-dimensional sharp module, and revolving cylinder sets up the output at two-dimensional sharp module, and revolving cylinder's output is connected with vacuum chuck, utilizes revolving cylinder to order about vacuum chuck to drive the pole piece and carries out 180 upset, and two-dimensional sharp module can order about revolving cylinder, vacuum chuck and pole piece respectively along first direction and upper and lower direction removal.

In order to realize that the two sides (namely the A side and the B side) of the pole piece are formed with the rubber frame 130, firstly, the work of forming the rubber frame 130 on the A side of the pole piece is completed through the first rubber frame forming device 400, the pole piece is transferred to the first pole piece blanking station by the first pole piece transferring device, at the moment, the pole piece overturning device 520 can transfer the pole piece with the rubber frame 130 formed on the A side from the first pole piece blanking station to the second pole piece feeding station, and overturning treatment of the pole piece is completed. Then, the pole piece is transferred to a second glue frame forming station by a second pole piece transferring device, the second glue frame forming device 400 is used for manufacturing the glue frame 130 on the B face of the pole piece, and the second pole piece transferring device is used for transferring the pole piece with the glue frame 130 on the double face to the second pole piece blanking station.

In the pole piece manufacturing apparatus provided in the second aspect of the present utility model, the pole piece transfer device transfers the material belt film 210 and the pole piece on the material belt film 210 to the glue frame forming station smoothly through the vacuum adsorption function, so that the conveying precision of the pole piece is ensured to be high, the position of the pole piece is not easy to deviate, the glue frame forming device 400 can manufacture the glue frame 130 on the pole piece with high precision, the forming effect of the glue frame 130 is ensured to be good, and the manufacturing quality of the solid-state battery is further improved.

In some embodiments, as shown in fig. 6, the pole piece manufacturing apparatus further comprises a pole piece drying device 900. Wherein the pole piece drying device 900 is configured to cure the glue frame 130 on the pole piece. After the molding of the adhesive frame 130 is completed, the adhesive frame 130 needs to be cured, and at this time, the pole piece drying device 900 can cure and dry the adhesive frame 130 on the pole piece in an infrared heating manner, so as to prevent the adhesive frame 130 from being deformed easily.

It will be appreciated that in some examples, pole piece drying device 900 is located at a pole piece blanking station where the pole piece can be transferred after the drying process of the pole piece is completed.

In other examples, a transfer manipulator 510 is disposed above the pole piece blanking station, and a vacuum belt conveyor 530 is disposed on a side of the pole piece blanking station away from the rubber frame forming station, and the pole piece at the pole piece blanking station is transferred to the vacuum belt conveyor 530 by the transfer manipulator 510, and a pole piece drying device 900 is disposed above the vacuum belt conveyor 530, so that the pole piece on the vacuum belt conveyor 530 can be dried.

The transfer robot 510 may be a robot device with a vacuum chuck, and may perform an adsorption and fixation function on the pole piece. As shown in fig. 7, the vacuum belt conveyor 530 includes a conveyor belt 531, a driven roller 533, a vacuum suction box 535, and a driving roller 534. The vacuum adsorption case 535 has a vacuum adsorption chamber, which can be connected with a vacuum pumping apparatus through a pipe, the vacuum adsorption case 535 is provided with adsorption air holes, both sides of the vacuum adsorption case 535 in a first direction are provided with rotatable driven rollers 533, a driving roller 534 is provided below the vacuum adsorption case 535, and the driving roller 534 is driven to rotate by a rotation driving member such as a motor. The conveyor belt 531 is wound between the driving roller 534 and the two driven rollers 533, and a plurality of vacuum suction holes 532 are provided on the surface of the conveyor belt 531. Under the drive effect of the driving roller 534, the conveying belt 531 not only can convey the pole piece along the first direction, but also can stably fix the pole piece on the conveying belt 531 by means of vacuum adsorption because the vacuum adsorption cavity, the adsorption air hole and the vacuum adsorption hole 532 are communicated, thereby ensuring high conveying precision of the pole piece and being not easy to generate position offset.

Further, as shown in fig. 6, the pole piece manufacturing apparatus further includes an appearance detecting device 820. Wherein the appearance detecting device 820 is configured to detect the appearance of the pole piece formed with the glue frame 130.

It can be understood that the appearance detection device 820 may be an existing visual recognition system, and can collect the image data of the pole piece through a camera in the visual recognition system, and determine whether the molding effect of the rubber frame 130 of the pole piece is poor and whether the appearance of the pole piece is defective by performing image recognition processing and analysis on the image data, if so, the pole piece is transferred to the NG station. In the case where the pole piece drying device 900 and the vacuum belt conveyor 530 are provided, the appearance detecting device 820 may be provided above the vacuum belt conveyor 530.

In a specific embodiment, as shown in fig. 6, the pole piece manufacturing apparatus includes a pole piece magazine 700, a transfer robot 510, a deviation correcting platform 810, a frame molding device 400, an appearance detecting device 820, a pole piece turning device 520, a pole piece drying device 900, a vacuum belt conveying device 530, and a pole piece transferring device according to the embodiment of the first aspect. In this embodiment, the pole piece moves from left to right and goes through a plurality of processing steps, thereby completing the work of forming the adhesive frame 130 on both sides of the pole piece.

The pole piece magazine 700 is provided with two pole pieces, and the pole piece magazine 700 can stack a plurality of pole pieces in the up-down direction. A transfer manipulator 510 is arranged above one of the pole piece magazine 700, the transfer manipulator 510 can transfer pole pieces in the pole piece magazine 700 to the correction platform 810 one by one, the position of the pole piece is adjusted through the correction platform 810, and the position correction work of the pole piece is completed. A transfer manipulator 510 is disposed above the deviation rectifying platform 810, and after the deviation rectifying operation is completed, the transfer manipulator 510 transfers the pole piece to the first pole piece feeding station, and places the pole piece on the material belt film 210.

The glue frame forming device 400, the pole piece transferring device, the pole piece drying device 900, the appearance detecting device 820 and the vacuum belt conveying device 530 are all provided with two. First, the adhesive frame 130 is formed on the a-side of the pole piece by the cooperation of the first adhesive frame forming device 400 and the first pole piece transferring device. A transfer robot 510 is disposed above the first pole piece blanking station, the transfer robot 510 being capable of transferring pole pieces located at the first pole piece blanking station to a first vacuum belt conveyor 530. In the process of conveying the pole piece by the vacuum belt conveying device 530, the appearance of the pole piece can be detected by the first appearance detecting device 820, and the adhesive frame 130 just manufactured on the pole piece can be solidified and dried by the first pole piece drying device 900.

A transfer robot 510 is disposed above the first vacuum belt conveyor 530, the transfer robot 510 transferring pole pieces from the vacuum belt conveyor 530 to the second pole piece loading station. Then, the adhesive frame 130 is formed on the B-side of the pole piece by the cooperation of the second adhesive frame forming apparatus 400 and the second pole piece transferring apparatus. A transfer robot 510 is also provided above the second pole piece blanking station, the transfer robot 510 being capable of transferring pole pieces located at the second pole piece blanking station to a second vacuum belt conveyor 530. In the process of conveying the pole piece by the vacuum belt conveying device 530, the second appearance detecting device 820 is utilized to detect the appearance of the pole piece, and the second pole piece drying device 900 is utilized to cure the adhesive frame 130 just formed on the pole piece.

Above the second vacuum belt conveyor 530 is also provided a transfer robot 510 that is capable of transferring pole pieces with adhesive frames 130 on both sides from the vacuum belt conveyor 530 to the second pole piece magazine 700 and stacking them for subsequent pole piece stacking.

After the battery core is manufactured by the pole piece formed by the pole piece manufacturing equipment according to the second aspect of the utility model, the rubber frame 130 positioned between the solid electrolyte membrane and the electrode membrane can ensure that the solid electrolyte membrane and the electrode membrane cannot deviate in the stress process in the pressure maintaining and pressurizing process of the isostatic pressing equipment on the battery core, and the connecting effect between the solid electrolyte membrane and the electrode membrane can be improved. In addition, since the width of the negative electrode plate 110 is greater than that of the positive electrode plate 120, the inner peripheral surface of the adhesive frame 130 is attached to the outer peripheral surface of the positive electrode plate 120, so that the adhesive frame 130 can give a certain supporting effect to the negative electrode plate 110, and further the problem of contact short circuit caused by bending at the edge of the negative electrode plate 110 in the pressurizing process is avoided.

As shown in fig. 1 to 10, a solid-state battery production line according to an embodiment of the third aspect of the present utility model includes a pole piece manufacturing apparatus as in the embodiment of the second aspect.

It will be appreciated that in the solid-state battery manufacturing process, a plurality of processing steps, such as a rolling step, a cutting step, a frame 130 manufacturing step, a quality inspection step, and the like, are included, each of which corresponds to a respective device. The present embodiment is only directed to a pole piece manufacturing apparatus in a solid state battery production line, and in particular, to a pole piece transferring device in the pole piece manufacturing apparatus, and no improvement requirement is made for other apparatuses in the solid state battery production line, so those skilled in the art should understand the structure and working principle of the other apparatuses in the solid state battery production line, which are not described herein.

In the solid-state battery production process, the manufacturing process of the rubber frame 130 on the pole piece can be efficiently and highly accurately completed by starting the pole piece manufacturing equipment, so that excellent adhesiveness between the pole pieces is ensured, the problems that a solid electrolyte membrane and an electrode membrane are easy to deviate and the anode membrane and the cathode membrane are easy to bend and contact at the edge and short circuit are prevented in the isostatic pressing process, and the manufacturing quality of the solid-state battery can be improved.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The pole piece transfer device is characterized by comprising:

The material belt film conveying unit is configured to convey a material belt film (210) along a first direction, a pole piece feeding station, a rubber frame forming station and a pole piece discharging station are sequentially arranged above the material belt film (210) along the first direction, and a plurality of first adsorption holes (211) are formed in the material belt film (210);

The pole piece transfer unit (300) comprises a first clamping mechanism and a second clamping mechanism which are arranged at intervals along a first direction, wherein the first clamping mechanism and the second clamping mechanism are both configured to clamp the material belt film (210), and vacuum adsorb the material belt film (210) and pole pieces positioned on the material belt film (210) so as to sequentially transfer the pole pieces on the material belt film (210) from the pole piece feeding station to the rubber frame forming station and the pole piece discharging station.

2. The pole piece transfer device according to claim 1, wherein the first clamping mechanism and the second clamping mechanism each include an upper platen (311), a lower platen (312), and a driving member, the lower platen (312) is provided with a vacuum air path and a plurality of second adsorption holes (313), the plurality of second adsorption holes (313) are communicated with the vacuum air path and configured to vacuum-adsorb the material tape film (210) and a pole piece located on the material tape film (210), and the driving member is configured to drive the upper platen (311) and the lower platen (312) to approach each other to clamp the material tape film (210).

3. The pole piece transferring device according to claim 2, wherein the upper pressing plate (311) is provided with two pieces, the two upper pressing plates (311) are respectively located at two opposite sides of the lower pressing plate (312) in a first direction, the plurality of second adsorption holes (313) are located between the two upper pressing plates (311), and/or the driving part comprises a first linear driving part (319) and a second linear driving part (316), the first linear driving part (319) is configured to drive the upper pressing plate (311) to move in an up-down direction, and the second linear driving part (316) is configured to drive the lower pressing plate (312) to move in an up-down direction.

4. The pole piece transfer device of claim 1, wherein the tape film (210) has a bearing surface with a width greater than a width of the pole piece.

5. The pole piece transfer device of claim 1, wherein the tape film transport unit includes an unreeling mechanism (610) and a first reeling mechanism (620), the unreeling mechanism (610) configured to unreel the tape film (210), the first reeling mechanism (620) configured to reel the tape film (210).

6. The pole piece transfer device according to claim 5, wherein the material tape film conveying unit further comprises a second winding mechanism (630), the material tape film (210) is formed with a plurality of adhesive frames (130) which are sequentially and alternately distributed along the extending direction of the material tape film (210), the material tape film (210) is covered with release paper (220) for covering the adhesive frames (130), and the second winding mechanism (630) is configured to be capable of peeling and winding the release paper (220) from the material tape film (210) so that the adhesive frames (130) can be transferred onto pole pieces at the adhesive frame forming station.

7. Pole piece manufacturing equipment, characterized by comprising a frame molding device (400) and a pole piece transfer device according to any of claims 1 to 6, the frame molding device (400) being configured to be able to manufacture a frame (130) on a pole piece located at the frame molding station.

8. The pole piece manufacturing apparatus of claim 7, further comprising a pole piece turning device (520), wherein the frame molding device (400) and the pole piece transferring device are both provided with two and are each disposed at intervals along the first direction, and wherein the pole piece turning device (520) is disposed between the two pole piece transferring devices and is configured to turn and transfer the pole piece so that the opposite two surfaces of the pole piece are both molded with the frame (130).

9. The pole piece manufacturing apparatus according to claim 7 or 8, further comprising a pole piece drying device (900), the pole piece drying device (900) being configured to cure the glue frame (130) on the pole piece, and/or further comprising an appearance detection device (820), the appearance detection device (820) being configured to detect the appearance of the pole piece with the glue frame (130) formed.

10. A solid state battery production line comprising a pole piece manufacturing apparatus as claimed in any one of claims 7 to 9.