Rubber frame, rubber frame lamination integrated manufacturing system, manufacturing method and solid-state battery

Abstract

The invention relates to the technical field of solid-state battery production, in particular to a rubber frame, a rubber frame lamination integrated manufacturing system, a manufacturing method and a solid-state battery. The rubber frame comprises a rubber sheet and a composite sheet which are arranged in a stacked mode, the rubber sheet comprises a frame part and a sheet part located in the frame part, and an easy-to-tear structure is arranged between the frame part and the sheet part so that the sheet part can be torn down from the frame part. By prefabricating the adhesive frame, during use, the composite sheet is torn off from the frame part, the viscosity of the adhesive part in the composite sheet is transmitted to the frame part, the frame part is adhered to one side of the negative electrode sheet, the sheet part is positioned on the non-adhesive part and is basically non-adhesive, and an easy-to-tear structure is arranged between the frame part and the sheet part, so that the sheet part can be torn off, and the negative electrode sheet is not adhered to one side of the negative electrode sheet. And due to the prefabricated rubber frame, the situation that toxic gas is easily generated due to direct gluing and curing at the peripheral edge of the negative plate is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solid-state battery production, in particular to a glue frame, a glue frame and sheet integrated manufacturing system, a manufacturing method and a solid-state battery. BACKGROUND

[0002] Sulfide solid-state batteries have high energy density, excellent cycle characteristics and high safety characteristics, making them one of the future development trends. In a solid-state battery, there is a positive electrode sheet between each adjacent two negative electrode sheets, and the size of the positive electrode sheet is smaller than that of the negative electrode sheet.

[0003] During the isostatic pressing process of the sulfide solid-state battery, the edge of the negative electrode sheet is easily deformed without support due to high temperature and high pressure, which can cause collapse and even short circuit. The current processing method coats glue (screen printing, dispensing, etc.) at the edge of the negative electrode sheet and solidifies (high-temperature drying, UV curing, etc.) to design a back-shaped glue frame, which supports and insulates between adjacent electrode sheets.

[0004] However, the above-mentioned method forms a back-shaped glue frame by directly coating glue at the edge of the negative electrode sheet, which on the one hand, since the surfaces of the positive and negative electrode sheets have sulfide electrolyte, the glue solidification process at a certain temperature can easily trigger the reaction of sulfide and water in the glue to generate toxic hydrogen sulfide gas, and on the other hand, since the size interval between the positive and negative electrode sheets is small and the precision is high, the size precision of the glue is difficult to control during the coating and solidification process. SUMMARY

[0005] (1) The problem to be solved by the present application is that the back-shaped glue frame is formed by directly coating glue at the edge of the negative electrode sheet, which on the one hand, since the surfaces of the positive and negative electrode sheets have sulfide electrolyte, the glue solidification process at a certain temperature can easily trigger the reaction of sulfide and water in the glue to generate toxic hydrogen sulfide gas, and on the other hand, since the size interval between the positive and negative electrode sheets is small and the precision is high, the size precision of the glue is difficult to control during the coating and solidification process.

[0006] (2) Technical solution The glue frame provided by the present application comprises a glue sheet and a composite sheet which are stacked. The glue sheet comprises a frame part and a sheet part located in the frame part, and an easy-to-tear structure is provided between the frame part and the sheet part, so that the sheet part can be torn off from the frame part. The side of the composite sheet facing the glue sheet comprises an adhesive part and a non-adhesive part, at least one edge of the frame part is bonded to the adhesive part and can be torn off, and after being torn off, the adhesion of the adhesive part is transferred to the bonding position of the frame part, and the sheet part is located on the non-adhesive part.

[0007] According to an embodiment of the present application, the composite sheet comprises an adhesive sheet and a non-stick sheet. The size of the anti-adhesion piece is smaller than that of the adhesive piece, the adhesive piece comprises the adhesive part and the bonding part, and the anti-adhesion piece comprises the non-adhesive part which is bonded with the bonding part.

[0008] According to an embodiment of the present application, the adhesive part is provided with the adhesive part on both sides along the width direction of the adhesive piece.

[0009] A system for manufacturing the frame and the adhesive piece integrally is used for manufacturing any of the frames, comprising a first unwinding mechanism, a second unwinding mechanism, a die-cutting mechanism, a first composite roller mechanism, a cutting mechanism, an adhesive tape, a composite tape and a composite mechanism. The first unwinding mechanism is used for unwinding the adhesive tape. The second unwinding mechanism is used for unwinding the composite tape, and the composite tape comprises a plurality of the composite pieces connected with each other. The die-cutting mechanism is arranged between the first unwinding mechanism and the first composite roller mechanism, and the adhesive tape is die-cut to form a plurality of the tearable structures through the die-cutting mechanism. The first composite roller mechanism is used for pressing the composite tape and the adhesive tape to form a composite frame tape, and the cutting mechanism is used for cutting the composite frame tape into a plurality of the frames. The composite mechanism is used for bonding the frame part in the frame to the anode piece in the solid-state battery.

[0010] According to an embodiment of the present application, the composite mechanism comprises a suction assembly and a jaw assembly, the suction assembly comprises a ring-shaped pressing plate, a suction disc, a guide moving piece and a moving assembly. The ring-shaped pressing plate is connected with the moving assembly, and the suction disc is connected with the moving assembly through the guide moving piece. The ring-shaped pressing plate has a containing area for containing the suction disc. The suction disc is used for sucking the piece part in the frame. The jaw assembly is used for tearing the composite piece in the frame from the adhesive piece.

[0011] According to an embodiment of the present application, the system further comprises a third unwinding mechanism, a fourth unwinding mechanism and a second composite roller mechanism. The composite tape comprises an adhesive tape and an anti-adhesion tape. The third unwinding mechanism is used for unwinding the adhesive tape, and the fourth unwinding mechanism is used for unwinding the anti-adhesion tape. The second composite roller mechanism is used for pressing the adhesive tape and the anti-adhesion tape to form the composite tape.

[0012] According to an embodiment of the present application, the system further comprises a transfer roller and a glue solution conveying mechanism. The second unwinding mechanism and the first composite roller mechanism are provided with the transfer roller; The transfer roller is provided with a relief, and the glue solution conveying mechanism transfers glue solution to the adhesive part through the relief.

[0013] According to one embodiment of the present application, the cutting mechanism is provided with a conveying belt for conveying the glue frame on the side away from the first composite roller mechanism.

[0014] A glue frame and sheet integrated manufacturing method, comprising the following steps: S1: unwinding the adhesive tape through the third unwinding mechanism, unwinding the anti-adhesive tape through the fourth unwinding mechanism, and pressing the unwound adhesive tape and the unwound anti-adhesive tape to form a composite tape through the second composite roller mechanism; S2: unwinding the adhesive tape through the first unwinding mechanism, and cutting the unwound adhesive tape into multiple easy-to-tear structures through the die-cutting mechanism; S3: unwinding the composite tape through the second unwinding mechanism, and pressing the unwound die-cut adhesive tape and the unwound composite tape to form a composite glue frame tape through the first composite roller mechanism; S4: cutting the composite glue frame tape into multiple glue frames through the cutting mechanism; S5: placing the negative plate on a designated position, and first absorbing one glue frame at the end position of the conveying belt through the adsorption assembly in the composite mechanism; during the conveying process, tearing off the composite sheet on the glue frame through the clamping jaw assembly in the composite mechanism; After conveying to the position directly above the negative plate, the frame part in the glue frame is adhered to the negative plate through the adsorption assembly in the composite mechanism, and the guide moving part in the adsorption assembly is used to drive the suction disc to move upward, so that the suction disc absorbs the sheet part in the glue frame to tear off the sheet part; S6: turning over the negative plate, and repeating the steps in step five.

[0015] A solid-state battery is made of any of the glue frames, and the solid-state battery comprises a positive sheet and a negative sheet, and the frame part is connected to both sides of each negative sheet; One positive sheet is arranged between every two adjacent negative sheets, and the positive sheet is located in the frame part.

[0016] The present application has the following advantages: By prefabricating a sticky glue frame, when in use, the composite sheet is torn off from the frame, and the stickiness of the sticky part of the composite sheet is transferred to the frame, and the frame is bonded to one side of the negative electrode sheet. Since the sheet is located on the non-sticky part, it basically has no stickiness. Since there is an easy-to-tear structure between the frame and the sheet, the sheet can be torn off so that the positive electrode sheet can be placed inside the frame. Due to the prefabricated glue frame, the situation of directly coating and curing the glue around the edges of the negative electrode sheet, which easily generates toxic gases, is avoided. Moreover, the film is a solid object of fixed size, and its size can be guaranteed. The stickiness of the film is transferred through the sticky part on the composite sheet, and the mucus (glue) will not be too much or too little, and it is relatively uniform. Therefore, the dimensional accuracy of the sticky frame of the film is better controlled than that of the traditional glue-coated and cured return-shaped glue frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a plastic frame provided in an embodiment of the present invention; Figure 2 A schematic structural diagram of a film provided in an embodiment of the present invention; Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the enlarged structure of part B; Figure 4 A schematic structural diagram of a composite sheet provided in an embodiment of the present invention; Figure 5 A schematic diagram of a system for manufacturing a plastic frame by integrating plastic frame laminations according to an embodiment of the present invention; Figure 6 A schematic diagram of a composite tape manufactured by a system for manufacturing integrated plastic frame laminations according to an embodiment of the present invention; Figure 7 A three-dimensional schematic diagram of a composite mechanism provided by an embodiment of the present invention; Figure 8 A schematic structural diagram of a composite structure and a plastic frame provided in an embodiment of the present invention; Figure 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the enlarged structure of part A; Figure 10 This is a schematic diagram of the frame provided by an embodiment of the present invention being assembled onto the negative electrode sheet.

[0019] Icons: 1. Film; 101. Frame; 102. Sheet; 103. Easy-tear structure; 2. Composite sheet; 201. Adhesive part; 202. Non-adhesive part; 3. First unwinding mechanism; 4. Second unwinding mechanism; 5. Composite mechanism; 501. Annular pressure plate; 502. Suction cup; 503. Mounting plate; 504. Connecting plate; 505. Positioning plate; 506. Guide rod cylinder; 507. Output part; 508. Clamp; 6. First composite roller mechanism; 7. Cutting mechanism; 8. Adhesive tape; 9. Composite tape; 901. Adhesive tape; 902. Anti-sticking tape; 10. Composite rubber frame tape; 11. Conveyor belt; 13. Third unwinding mechanism; 14. Fourth unwinding mechanism; 15. Second composite roller mechanism; 16. Die-cutting mechanism; 17. Negative electrode sheet. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1: like Figures 1-4 As shown, an embodiment of the present invention provides a plastic frame, comprising a plastic sheet 1 and a composite sheet 2 stacked together; The film 1 includes a frame portion 101 and a sheet portion 102 located within the frame portion 101 . An easy-tear structure 103 is provided between the frame portion 101 and the sheet portion 102 to enable the sheet portion 102 to be torn off from the frame portion 101 . The side of the composite sheet 2 facing the film 1 includes an adhesive portion 201 and a non-adhesive portion 202. At least one edge of the frame portion 101 is bonded to the adhesive portion 201 and can be torn off. When torn off, the adhesiveness of the adhesive portion 201 is transferred to the adhesive position of the frame portion 101, and the sheet portion 102 is located on the non-adhesive portion 202.

[0022] By pre-preparing the adhesive frame, when in use, the composite sheet 2 is torn from the frame part 101, the adhesion of the adhesive part 201 in the composite sheet 2 is transferred to the frame part 101, the frame part 101 is bonded to one side of the negative plate 17, and since the sheet part 102 is located on the non-adhesive part 202, it basically has no adhesion, and since the easy-to-tear structure 103 is provided between the frame part 101 and the sheet part 102, the sheet part 102 can be torn off, so that the frame part 101 can accommodate the positive plate. Since the adhesive frame is pre-prepared, the generation of toxic gas caused by directly applying adhesive to the edges of the negative plate 17 is avoided. The adhesive sheet 1 is a solid object with a fixed size, and the size can be guaranteed. The adhesion of the adhesive sheet 1 is transferred from the adhesive part 201 on the composite sheet 2, and the adhesive (adhesive liquid) is not too much or too little, and is relatively uniform. Therefore, compared with the traditional adhesive curing return type adhesive frame, the size accuracy of the adhesive frame 101 with adhesion is better controlled, and the size accuracy is higher.

[0023] According to one embodiment of the present application, as shown in Figure 4 The composite sheet 2 includes an adhesive sheet and a non-adhesive sheet. The size of the non-adhesive sheet is smaller than that of the adhesive sheet (the width of the non-adhesive sheet is smaller than that of the adhesive sheet), the adhesive sheet includes an adhesive part 201 and a bonding part, the non-adhesive sheet includes a non-adhesive part 202, and the non-adhesive part 202 is bonded to the bonding part.

[0024] Preferably, the two sides of the bonding part are provided with adhesive parts 201 along the width direction of the adhesive sheet.

[0025] As shown in Figure 1 The width of the composite sheet 2 in the adhesive frame is greater than the width of the adhesive sheet 1. The length direction of the composite sheet 2 is the same as the length direction of the adhesive sheet 1, and the width direction of the composite sheet 2 is the same as the width direction of the adhesive sheet 1.

[0026] Embodiment two: As shown in Figures 5-10 A system for manufacturing an adhesive frame and a sheet integrally, for manufacturing an adhesive frame, comprising a first unwinding mechanism 3, a second unwinding mechanism 4, a die-cutting mechanism 16, a first composite counter-rolling mechanism 6, a cutting mechanism 7, an adhesive tape 8, a composite tape 9, and a composite mechanism 5. The first unwinding mechanism 3 is used to unwind the adhesive tape 8. The second unwinding mechanism 4 is used to unwind the composite tape 9, and the composite tape 9 includes a plurality of connected composite sheets 2. The die-cutting mechanism 16 is arranged between the first unwinding mechanism 3 and the first composite counter-rolling mechanism 6, and the adhesive tape 8 is die-cut by the die-cutting mechanism 16 to form a plurality of easy-to-tear structures 103, which are uniformly and sequentially arranged along the length direction of the adhesive tape 8. The first composite pair of roller mechanisms 6 are used for pressing the composite tape 9 and the adhesive tape 8 to form a composite adhesive frame tape 10, and the cutting mechanism 7 is used for cutting the composite adhesive frame tape 10 into a plurality of adhesive frames; The composite mechanism 5 is used for bonding the frame part 101 in the adhesive frame to the negative plate 17 in the solid-state battery.

[0027] According to one embodiment of the present application, as shown in Figure 7 The composite mechanism 5 includes a suction assembly and a jaw assembly, the suction assembly includes a ring-shaped pressing plate 501, a suction disc 502, a guide moving piece and a moving assembly; The moving assembly includes a horizontal moving module and a vertical moving module, the vertical moving module is installed on the horizontal moving module, and the horizontal moving module is used for driving the vertical moving module to move in the horizontal direction; The vertical moving module includes an output part 507, a positioning plate 505 and a connecting plate 504; The positioning plate 505 is connected at the bottom of the output part 507, and the connecting plate 504 is provided with two and symmetrically connected at the two sides of the positioning plate 505; The ring-shaped pressing plate 501 is connected with the connecting plate 504 on the vertical moving module in the moving assembly, the suction disc 502 is connected with the positioning plate 505 in the vertical moving module in the moving assembly through the guide moving piece, and in the initial state, the lower surface of the suction disc 502 and the lower surface of the ring-shaped pressing plate 501 are located on the same horizontal plane, or the lower surface of the suction disc 502 slightly protrudes from the lower surface of the ring-shaped pressing plate 501, both of which are acceptable, the guide moving piece includes a guide rod air cylinder 506 and a mounting plate 503, the pushing end of the guide rod air cylinder 506 is connected with the mounting plate 503, the fixed end of the guide rod air cylinder 506 is connected with the positioning plate 505, and the suction disc 502 is provided with a plurality of suction discs 502 connected with the mounting plate 503; The ring-shaped pressing plate 501 has a containing area for containing the suction disc 502, and the size of the containing area is not less than the size of the sheet part 102, so that the ring-shaped pressing plate 501 only contacts with the frame part 101 of the adhesive frame; The suction disc 502 is used for sucking the sheet part 102; The jaw assembly is used for tearing the composite sheet 2 in the adhesive frame from the adhesive sheet 1.

[0028] It should be noted that the composite mechanism 5 includes a first vacuumizing assembly and a second vacuumizing assembly; The ring-shaped pressing plate 501 has a cavity, and the ring-shaped pressing plate 501 is provided with a suction hole at the bottom, the first vacuumizing assembly is used for vacuumizing the cavity, so that when the ring-shaped pressing plate 501 contacts with the frame part 101 of the adhesive frame, the ring-shaped pressing plate 501 can suck the frame part 101 of the adhesive frame, and in the same way, the second vacuumizing assembly is communicated with the inner cavity of the suction disc 502, the suction disc 502 contacts with the sheet part 102 of the adhesive frame, and the inner cavity of the suction disc 502 is vacuumized through the second vacuumizing assembly, so that the suction disc 502 can suck the sheet part 102 of the adhesive frame, as shown inFigure 8 and Figure 9 As shown in FIG. 5, the projection of the suction disc 502 on the film 1 falls within the sheet part 102, and the moving assembly drives the film frame to move to the position directly above the negative sheet 17. The first vacuum assembly and the second vacuum assembly are prior art, and can respectively vacuum the cavity of the annular pressing plate 501 and the inner cavity of the suction disc 502. Details are not described herein.

[0029] Specifically, in order to enhance the adhesion of the frame part 101 in the film frame, heating sheets can be embedded on the lower surface of the annular pressing plate 501, so as to rapidly heat the frame part 101 by pulse heating, and tightly adhere. The surface of the annular pressing plate 501 is sprayed with a non-stick material such as Teflon.

[0030] The whole mechanism action logic is as follows: the moving assembly drives the whole composite mechanism 5 to move above the film frame, the output part 507 of the vertical moving module moves downward, so that the annular pressing plate 501 can contact the frame part 101 of the film frame, and the plurality of suction discs 502 contact the sheet part 102 of the film frame, as shown in FIG. 5. Figure 8 and Figure 9 As shown in FIG. 5, then the first vacuum assembly and the second vacuum assembly are started to vacuum, so that the annular pressing plate 501 sucks the frame part 101, and the suction disc 502 sucks the sheet part 102. After waiting for the vacuum to reach a set value, the vertical moving module moves upward, and the horizontal moving assembly drives the whole composite mechanism 5 to move to the position directly above the negative sheet 17. During the movement, the composite sheet 2 is torn from the film 1 by the jaw assembly. Specifically, the jaw assembly includes four jaws 508, which are respectively located at the four corner positions of the composite sheet 2. The four jaws 508 tear the composite sheet 2 from the film 1 by clamping the four corner positions of the composite sheet 2. Each jaw 508 is sprayed with a non-stick coating. Further, in order to ensure that the composite sheet 2 is not adhered to the jaw 508, a clamping piece sprayed with a non-stick coating can be provided at the bottom of the jaw assembly. The clamping piece can clamp the non-adhesive part 202 in the composite sheet 2, and discharge the composite sheet 2 into a waste box.

[0031] The film 1 is stopped at the position directly above the negative sheet 17, the vertical moving module drives the annular pressing plate 501 and the suction disc 502 to move downward, so that the film 1 in the film frame is adhered to the negative sheet 17. The vertical moving module stops moving, the annular pressing plate 501 no longer adsorbs the frame part 101, the inner part of the suction disc 502 is vacuumed, and when another set value is reached, the guide rod pneumatic cylinder 506 performs a contraction movement to drive the mounting plate 503 to move upward, so that the sheet part 102 is separated from the frame part 101 and torn off. Finally, the vertical moving module moves upward, the moving assembly drives the composite mechanism 5 to move away from the position of the negative sheet 17, the vacuum is broken, and the sheet part 102 waste is discharged into a waste box.

[0032] It should be noted that the two side edge positions of the film 1 in the width direction can be respectively located on the corresponding adhesive portions 201.

[0033] Preferably, the vertical moving module can adopt a pneumatic cylinder.

[0034] Through the film frame laminating integrated manufacturing system, automation is improved, manual participation is reduced, production efficiency is high, and the current laminating precision and efficiency can be achieved. Since the film frame is prefabricated through the manufacturing system, hydrogen sulfide generation can be basically eliminated, and the production safety hazards of personnel and equipment are reduced.

[0035] According to one embodiment of the present application, the third unwinding mechanism 13, the fourth unwinding mechanism 14 and the second composite roller mechanism 15 are further included. The composite tape 9 includes an adhesive tape 901 and a release tape 902, the adhesive tape 901 being a plurality of uncut adhesive pieces, and the release tape 902 being a plurality of uncut release pieces. The third unwinding mechanism 13 is used to unwind the adhesive tape 901, and the fourth unwinding mechanism 14 is used to unwind the release tape 902. The second composite roller mechanism 15 is used to press and combine the adhesive tape 901 and the release tape 902 to form the composite tape 9. After the composite tape 9 is wound, it is placed in the second unwinding mechanism 4 for use.

[0036] It should be noted that the second composite roller mechanism 15 includes a second driving roller and a second driven roller. The surfaces of the second driving roller and the second driven roller are coated with a release coating (such as Teflon), the pressure / gap between the second driving roller and the second driven roller can be adjusted, the gap between the second driving roller and the second driven roller is about 70% of the thickness of the composite tape 9, the second driving roller is located below the second driven roller, and a DD motor provides power to drive the second driving roller to move. Due to the friction (traction) force, the first driven roller, the adhesive tape 901 and the release tape 902 also move together, and the linear speed is 0.7 m / s. The adhesive tape 901 can be a commonly used B0PP film transparent tape in daily life. The release tape 902 can be a release paper (film) in a conventional double-sided tape. There is a tension control mechanism to ensure constant tension of the overall material movement during the tape running process. A correction system detects and corrects the tape running position in real time to avoid deviation (the tension control mechanism and the correction system are prior art and will not be described in detail).

[0037] The first composite pair of roller mechanisms 6 and the second composite pair of roller mechanisms 15 are of the same structure, the first composite pair of roller mechanisms 6 comprises a first driving roller and a first driven roller, the distance between the first driving roller and the first driven roller is adjustable, for example, the first driven roller is driven to move close to or away from the first driving roller by a linear module, the linear module can be a pneumatic cylinder, an electric push rod or the like. The gap between the first driving roller and the first driven roller is about 70% of the thickness of the composite adhesive frame belt 10. The material of the adhesive belt 8 can be resin or the like, preferably, the thickness of the adhesive belt 8 is half of the thickness of the positive plate. The first composite pair of roller mechanisms 6 can press the composite belt 9 and the adhesive belt 8 together, so that the adhesive liquid (viscous liquid) on the composite belt 9 can be uniformly transferred to the frame part 101 of the corresponding adhesive belt 8.

[0038] According to one embodiment of the present application, further comprising a transfer roller and an adhesive liquid conveying mechanism; The second unwinding mechanism 4 and the first composite pair of roller mechanisms 6 are provided with a transfer roller; The transfer roller is provided with a convex pattern, and the adhesive liquid conveying mechanism transfers the adhesive liquid to the viscous part 201 through the convex pattern.

[0039] The adhesive liquid conveying mechanism can convey adhesive liquid to the convex pattern of the transfer roller, which is a prior art and will not be described in detail.

[0040] In the present embodiment, the two side edges of the composite belt 9 in the width direction have slight adhesion, and the other areas are attached with the anti-adhesive belt 902 and have no adhesion. In particular, a transfer roller can be further arranged between the second unwinding mechanism 4 and the first composite pair of roller mechanisms 6, the transfer roller has a convex pattern at the edge of the composite belt 9 in the width direction, a small amount of adhesive liquid is provided by connecting the adhesive liquid conveying system, the adhesive liquid is transferred to the edge of the composite belt 9 (viscous part 201) through the convex pattern, the adhesion of the viscous part 201 is improved, the combination of the subsequent composite belt 9 and the adhesive belt 8 is improved, and part of the adhesive liquid in the composite belt 9 is transferred to the adhesive belt 8 to enhance the adhesion of the adhesive belt 8 and the positive plate. It should be noted that the adhesive belt 8 itself has no adhesion or slight adhesion, and most of the adhesion is transferred by the adhesive belt 8.

[0041] Since the adhesive belt 901 itself has adhesion and is additionally coated with adhesive liquid, and the anti-adhesive belt 902 has no adhesion, the adhesive belt 8 after die cutting can be attached to the area (viscous part 201) of the adhesive belt 901 which is not covered by the anti-adhesive belt 902 on both sides of the width direction of the adhesive belt 8 (i.e. both sides of the frame part 101), and the sheet part 102 cannot be attached. The width of the adhesive belt 8 is equal to the width of the frame part 101.

[0042] During the belt running process, a tension control mechanism is used to ensure the tension of the overall material movement. A deviation correction system detects and corrects the running position in real time to avoid deviation (which is a prior art and will not be described in detail).

[0043] Preferably, a vacuum adsorption foreign matter dust removal device can be arranged at the die-cutting mechanism 16 and the cutting mechanism 7. A CCD appearance detection device can be arranged on the conveying belt 11 to detect surface defects and size NG of the rubber frame, and specific detection content and scheme can refer to the related detection of the pole piece. (This is prior art and will not be described in detail.)

[0044] According to one embodiment of the present application, the cutting mechanism 7 is provided with a conveying belt 11 for conveying the rubber frame away from one side of the first composite roller mechanism 6.

[0045] Embodiment three: A rubber frame and pole piece integrated manufacturing method, comprising the following steps: S1: unwinding the adhesive tape 901 through the third unwinding mechanism 13, unwinding the anti-adhesive tape 902 through the fourth unwinding mechanism 14, and pressing the unwound adhesive tape 901 and the unwound anti-adhesive tape 902 through the second composite roller mechanism 15 to form a composite tape 9; It should be noted that the adhesive tape 901 has adhesion, and the anti-adhesive tape 902 does not have adhesion; S2: unwinding the adhesive tape 8 through the first unwinding mechanism 3, and cutting the unwound adhesive tape 8 through the die-cutting mechanism 16 to form a plurality of easy-to-tear structures 103; Each group of easy-to-tear structures 103 includes a plurality of easy-to-tear openings (such as Figure 2 and Figure 3 As shown, the plurality of easy-to-tear openings in each group of easy-to-tear structures 103 collectively form a rectangular shape, and each adjacent two easy-to-tear openings form a connecting portion connecting the frame portion 101 and the piece portion 102. The connecting portion is in the shape of a short horizontal line, which is convenient for the suction cup 502 to adsorb the piece portion 102 and tear the piece portion 102 from the frame portion 101), and the punching size precision of the adhesive tape 8 is ±0.2mm; Specifically, the die-cutting mechanism 16 can adopt hardware dies or laser die-cutting to cut the adhesive tape 8 into a plurality of easy-to-tear structures 103, and the adhesive tape 8 forms a plurality of continuous adhesive pieces 1 at this time.

[0046] S3: unwinding the composite tape 9 through the second unwinding mechanism 4, and pressing the unwound die-cut adhesive tape 8 and the unwound composite tape 9 through the first composite roller mechanism 6 to form a composite rubber frame tape 10; S4: cutting the composite rubber frame tape 10 through the cutting mechanism 7 to form a plurality of rubber frames, and the cutting size precision is ±0.2mm; Specifically, the composite rubber frame tape 10 is cut into a plurality of rubber frames through the hardware cutter of the cutting mechanism 7, and finally conveyed through the conveying belt 11 (which can be a vacuum belt) and arranged in sequence and at intervals, waiting for the composite mechanism 5 to take the rubber frame from the end position of the conveying belt 11.

[0047] It should be noted that the conveying belt 11 can move intermittently, and the composite mechanism 5 takes the rubber frame during the movement gap of the conveying belt 11.

[0048] S5: After the negative plate 17 is laid flat to the designated position by the plate carrying mechanism and corrected by the correction positioning mechanism, the composite mechanism 5 first sucks and transports a rubber frame (a film 1 in the rubber frame) at the end position (the area to be clamped) of the conveying belt 11, and in the process of transportation, the composite sheet 2 on the rubber frame is torn off by the jaw assembly in the composite mechanism 5; The rubber frame position is corrected by the correction positioning mechanism above the negative plate 17, and after completion, the rubber frame is bonded to the negative plate 17 by the composite mechanism 5, and then the guide moving part in the composite mechanism 5 drives the suction cup 502 to move upward, so that the suction cup 502 sucks the film part 102 to tear off the film part 102; After the frame part 101 in the rubber frame is bonded to the negative plate 17, the guide rod cylinder 506 drives the mounting plate 503 to move, so that the suction cup 502 moves upward to tear off the film part 102. The advantage is that the film part 102 can support the inside of the frame part 101, so that the frame part 101 in the rubber frame will not deform before being bonded to the negative plate 17, the bonding precision is higher, and the effect is better.

[0049] S6: The negative plate 17 is turned over by the plate carrying mechanism, and the steps of step five (S5) are repeated. S7: The positive plate is placed in the frame part 101, the cross-lamination forms a battery cell, and after the hot-pressing and rubber-bonding mechanism is bonded, the discharging is completed.

[0050] Specifically, the rubber frame and the negative plate 17 are respectively corrected and positioned by the CCD and the correction positioning mechanism, and then the rubber frame is compounded on both sides of the negative plate 17. The plate carrying mechanism realizes the plate turning over, and the composite sheet 2 on the lower surface of the rubber frame and the film part 102 on the upper surface are removed in the compounding process. Then, the positive plate is placed in the frame part 101 to form a battery cell by cross-lamination. The lamination station can be 3 stations (battery cells / station) together, which can achieve 0.15s / sheet / station. During the lamination process, a CCD is added above the lamination table to detect the neatness of the positive and negative plates and whether the positive plate is fully inserted into the frame, thereby improving the yield of the whole machine. It is particularly emphasized that the rubber frame is white, which forms a strong color contrast with the black positive and negative plates 17, so the accuracy of the CCD when shooting is very high. Finally, after hot-pressing and rubber-bonding, the discharging is completed.

[0051] It should be noted that the plate carrying mechanism, the correction positioning mechanism, the lamination mechanism, and the hot-pressing and rubber-bonding mechanism are common to the current lamination machine, and are all prior art, which will not be described in more detail.

[0052] The frame of the gel piece 1 is formed by the die-cutting mechanism 16 and the cutting mechanism 7, and the glue on the frame 101 of the gel piece 1 is formed by the first composite roller mechanism 6, which makes the glue on the composite tape 9 transfer to the adhesive tape 8. Compared with directly coating and curing the glue on the negative electrode piece 17, the size accuracy of the gel piece 1 is easier to control, the uniformity of the glue attached to the frame 101 of the gel piece 1 is better, and the size accuracy of the adhesive frame formed as a whole is high.

[0053] Embodiment four: A solid-state battery is made of the adhesive frame of embodiment one, and the solid-state battery comprises positive electrode pieces and negative electrode pieces 17, and each negative electrode piece 17 is connected with a frame 101 on both sides. Each adjacent two negative electrode pieces 17 are provided with a positive electrode piece, and the two sides of the positive electrode piece are located in a frame 101.

[0054] In the description of the present application, it should be pointed out that the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0055] In the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "communication" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct communication, or indirect communication through intermediate medium, or communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0056] The above is only the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A plastic frame, characterized in that: It includes a film (1) and a composite sheet (2) that are stacked; The film (1) comprises a frame portion (101) and a sheet portion (102) located within the frame portion (101), and an easy-tear structure (103) is provided between the frame portion (101) and the sheet portion (102) so that the sheet portion (102) can be torn off from the frame portion (101); The side of the composite sheet (2) facing the film (1) includes an adhesive portion (201) and a non-adhesive portion (202), at least one edge of the frame portion (101) is bonded to the adhesive portion (201) and can be torn off, and when torn off, the adhesiveness of the adhesive portion (201) is transferred to the adhesive position of the frame portion (101), and the sheet portion (102) is located on the non-adhesive portion (202).

2. The plastic frame according to claim 1, characterized in that: The composite sheet (2) comprises an adhesive sheet and a release sheet; The size of the anti-adhesive sheet is smaller than that of the adhesive sheet. The adhesive sheet includes the adhesive portion (201) and the adhesive portion. The anti-adhesive sheet includes the non-adhesive portion (202), and the non-adhesive portion (202) is bonded to the adhesive portion.

3. The plastic frame according to claim 2, characterized in that: Along the width direction of the adhesive sheet, the adhesive portions (201) are provided on both sides of the adhesive portion.

4. A system for manufacturing a plastic frame laminated integrally, used for manufacturing the plastic frame according to any one of claims 1 to 3, characterized in that: It comprises a first unwinding mechanism (3), a second unwinding mechanism (4), a die-cutting mechanism (16), a first composite roller mechanism (6), a cutting mechanism (7), an adhesive tape (8), a composite tape (9) and a composite mechanism (5); The first unwinding mechanism (3) is used to unwind the adhesive tape (8); The second unwinding mechanism (4) is used to unwind the composite tape (9), wherein the composite tape (9) comprises a plurality of connected composite sheets (2); The die-cutting mechanism (16) is provided between the first unwinding mechanism (3) and the first composite roller mechanism (6), and the adhesive tape (8) is die-cut into a plurality of the easy-tear structures (103) by the die-cutting mechanism (16); The first composite roller mechanism (6) is used to press the composite tape (9) and the adhesive tape (8) to form a composite adhesive frame tape (10), and the cutting mechanism (7) is used to cut the composite adhesive frame tape (10) into a plurality of adhesive frames; The composite structure (5) is used to bond the frame portion (101) in the rubber frame to the negative electrode sheet (17) in the solid-state battery.

5. The system for manufacturing a plastic frame laminated body according to claim 4, characterized in that: The composite mechanism (5) comprises an adsorption component and a clamping claw component, wherein the adsorption component comprises an annular pressure plate (501), a suction cup (502), a guide moving part and a moving component; The annular pressure plate (501) is connected to the moving component, and the suction cup (502) is connected to the moving component via the guide moving member; The annular pressure plate (501) has an accommodating area for accommodating the suction cup (502); The suction cup (502) is used to suck the sheet portion (102) in the plastic frame; The clamping claw assembly is used to tear the composite sheet (2) in the plastic frame off the plastic sheet (1).

6. The system for manufacturing a plastic frame laminated body according to claim 4, characterized in that: It also includes a third unwinding mechanism (13), a fourth unwinding mechanism (14) and a second composite roller mechanism (15); The composite tape (9) comprises an adhesive tape (901) and an anti-adhesive tape (902); The third unwinding mechanism (13) is used to unwind the adhesive tape (901), and the fourth unwinding mechanism (14) is used to unwind the anti-adhesive tape (902); The second composite roller mechanism (15) is used to press the adhesive tape (901) and the anti-adhesive tape (902) together to form the composite tape (9).

7. The system for manufacturing a plastic frame laminated body according to claim 4, characterized in that: It also includes a transfer roller and a glue delivery mechanism; The transfer roller is provided between the second unwinding mechanism (4) and the first composite roller mechanism (6); The transfer roller is provided with convex patterns, and the glue liquid conveying mechanism transfers the glue liquid to the adhesive portion (201) via the convex patterns.

8. The system for manufacturing a plastic frame laminated structure as claimed in claim 4, characterized in that: A conveyor belt (11) for conveying the rubber frame is provided on a side of the cutting mechanism (7) away from the first composite roller mechanism (6).

9. A method for manufacturing a laminated plastic frame, characterized in that: The following steps are involved: S1: unwinding the adhesive tape (901) through the third unwinding mechanism (13), unwinding the anti-adhesive tape (902) through the fourth unwinding mechanism (14), and pressing the unwound adhesive tape (901) and the unwound anti-adhesive tape (902) together through the second composite roller mechanism (15) to form a composite tape (9); S2: unwinding the adhesive tape (8) through the first unwinding mechanism (3), and die-cutting the unwound adhesive tape (8) into a plurality of easy-to-tear structures (103) through the die-cutting mechanism (16); S3: unwinding the composite tape (9) through the second unwinding mechanism (4), and pressing the unrolled die-cut tape (8) and the unrolled composite tape (9) through the first composite roller mechanism (6) to form a composite adhesive frame tape (10); S4: cutting the composite rubber frame strip (10) into a plurality of rubber frames through a cutting mechanism (7); S5: Place the negative electrode sheet (17) flatly at a designated position, and first suck a plastic frame at the end of the conveyor belt (11) through the adsorption component in the composite mechanism (5). During the transportation process, the composite sheet (2) on the plastic frame is torn off through the clamping claw component in the composite mechanism (5); After being transported to the top of the negative electrode sheet (17), the frame portion (101) in the plastic frame is bonded to the negative electrode sheet (17) by the adsorption component in the composite mechanism (5), and the guide moving member in the adsorption component is then used to drive the suction cup (502) to move upward, so that the suction cup (502) adsorbs the sheet portion (102) in the plastic frame and tears the sheet portion (102) off; S6: Turn the negative electrode sheet (17) over and repeat step 5.

10. A solid-state battery, made of the plastic frame according to any one of claims 1 to 3, characterized in that: The solid-state battery comprises a positive electrode sheet and a negative electrode sheet (17), and both sides of each negative electrode sheet (17) are connected to the frame portion (101); A positive electrode sheet is provided between each two adjacent negative electrode sheets (17), and the positive electrode sheet is located inside the frame (101).

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