Solid-state battery cell manufacturing method and device based on single-sided rubber frame molding

Abstract

The invention discloses a solid-state battery cell manufacturing method and device based on single-sided rubber frame forming, and relates to the technical field of solid-state battery manufacturing. The method comprises the following steps: manufacturing a rubber frame on one surface of a first pole piece positioned at a forming station; the second pole pieces and the first pole pieces with the rubber frames are sequentially and alternately conveyed to a lamination station, and the first pole pieces and the second pole pieces are sequentially and alternately laminated, so that the second pole pieces are embedded into the rubber frames of the first pole pieces; wherein the electrodes of the first pole piece and the second pole piece are opposite, and the thickness of the rubber frame is greater than or equal to that of the second pole piece. According to the invention, two times of rubber frame forming on one pole piece are not needed, so that the connectivity between the pole pieces is improved, and the conditions that the solid electrolyte layer and the pole pieces deviate relatively and the two adjacent pole pieces are short-circuited are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-state battery manufacturing, and in particular to a solid-state battery cell manufacturing method and device based on single-sided rubber frame molding. Background Art

[0002] Solid-state batteries are new batteries that use solid electrolytes to replace the diaphragms and liquid electrolytes in traditional liquid batteries. Solid-state lithium batteries can use lithium metal anodes to replace the graphite or silicon anodes in traditional lithium-ion batteries. Compared with traditional anodes, lithium metal anodes have higher energy density, allowing solid-state batteries to store more energy in the same volume, making solid-state batteries likely to replace liquid batteries and be widely used.

[0003] The existing solid-state battery production process is not very mature. Compared with the liquid electrolyte that can fully contact the electrode, the solid electrolyte layer in the solid-state battery is difficult to fit tightly with the electrode, which adversely affects the quality of the solid-state battery.

[0004] In the related art, in order to improve the positioning and bonding effect between the solid electrolyte layer and the pole piece, so as to improve the quality of the solid-state battery, our company manufactures a rubber frame on both sides of one of the positive pole piece and the negative pole piece through a molding process, and the other is embedded in the rubber frame, so that the positive pole piece and the negative pole piece are staggered and stacked into a battery cell, and the battery cell is subjected to isostatic pressing treatment; through the enclosure and limiting effect of the rubber frame, the lateral displacement between the positive pole piece and the negative pole piece can be limited, and the solid electrolyte layer and the pole piece can be closely fitted. In the traditional rubber frame manufacturing process, the pole pieces are usually sent to the first molding station, the flipping station and the second molding station in turn, and the rubber frames are manufactured on the two surfaces of the pole piece by the rubber frame molding mechanism. However, such a manufacturing method will lead to a complex structure of the corresponding manufacturing equipment, a large space occupation, and high cost. In addition, it is difficult to ensure the alignment of the two rubber frames on both sides of the pole piece by manufacturing the rubber frame on the two opposite sides of the pole piece. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a solid-state battery cell manufacturing method and device based on single-sided glue frame molding, which does not require two glue frame moldings on one pole piece, and has high glue frame manufacturing efficiency, thereby increasing the connection effect between pole pieces in the solid-state battery cell, and avoiding the problem that the solid electrolyte layer and the pole piece of the solid-state battery cell are easily offset during the isostatic pressing process, and the edges of two adjacent pole pieces are easily bent and contacted during the pressurization process, causing a short circuit.

[0006] The first embodiment of the present invention provides a method for manufacturing a solid-state battery cell based on single-sided rubber frame molding, which comprises the following steps: Manufacturing a rubber frame on one surface of the first pole piece located at the molding station; The second electrode sheet and the first electrode sheet with the rubber frame are conveyed alternately to the lamination station in sequence, and the first electrode sheet and the second electrode sheet are alternately stacked in sequence, so that the second electrode sheet is embedded in the rubber frame of the first electrode sheet; wherein the electrodes of the first electrode sheet and the second electrode sheet are opposite, and the thickness of the rubber frame is greater than or equal to the thickness of the second electrode sheet.

[0007] According to the solid-state battery cell manufacturing method based on single-sided glue frame molding according to the embodiment of the first aspect of the present invention, there are at least the following beneficial effects: by manufacturing a glue frame on one of the surfaces of the first pole piece, the second pole piece can be embedded in the glue frame of the first pole piece during the stacking process, and the glue frame can ensure that the solid electrolyte layer and the pole piece of the solid-state battery cell will not be positionally offset during the isostatic pressing process, thereby improving the connection effect between the solid electrolyte layer and the pole piece, and the glue frame can support the first pole piece to avoid bending of the first pole piece during the force process as much as possible, so as to reduce the probability of deformation of the first pole piece; by arranging a single-sided glue frame on a single surface of the first pole piece, there is no need to perform glue frame molding twice on one pole piece, thereby reducing the cost of the process flow and the glue frame molding equipment, and at the same time, only one glue frame molding is required for a single pole piece, and the positions of the glue frames of the stacked multiple first pole pieces are basically the same, and the relative positions of the glue frames and the first pole pieces can be unified, so that the glue frames on both sides of the first pole piece have a higher degree of alignment after stacking.

[0008] In some embodiments of the present invention, the method further comprises the following steps: A tab tape is manufactured at the tab of one of the first pole piece and the second pole piece; wherein the tape frame is disconnected at the tab.

[0009] In some embodiments of the present invention, the step of manufacturing a tab tape at a tab of one of the first pole piece and the second pole piece comprises the following steps: The first pole piece is sent to a pasting station, and a pole ear tape is manufactured at the pole ear of the first pole piece; The first pole piece with the pole ear tape is conveyed to the forming station.

[0010] In some embodiments of the present invention, the step of manufacturing a tab tape at a tab of one of the first pole piece and the second pole piece comprises the following steps: The second pole piece is sent to a pasting station, and a pole ear tape is manufactured at the pole ear of the second pole piece.

[0011] In some embodiments of the present invention, the second electrode sheet and the first electrode sheet with the plastic frame are alternately transported to the lamination station in sequence, and the first electrode sheet and the second electrode sheet are alternately stacked in sequence, so that the second electrode sheet is embedded in the plastic frame of the first electrode sheet, including the following steps: The second pole piece and the first pole piece with the rubber frame are alternately conveyed to the lamination station in sequence, and the first pole piece, the solid electrolyte layer and the second pole piece are alternately stacked in sequence, so that the second pole piece is embedded in the rubber frame of the first pole piece, and the solid electrolyte layer is embedded in the inner periphery of the rubber frame.

[0012] In some embodiments of the present invention, before the second electrode sheet and the first electrode sheet with the plastic frame are alternately transported to the lamination station and the first electrode sheet and the second electrode sheet are alternately stacked, the following steps are included: Transporting the first electrode piece to the first cutting station and cutting the first electrode piece; The second pole piece is transported to the second cutting station and cut.

[0013] In some embodiments of the present invention, the method further comprises the following steps: After a glue frame is manufactured on one surface of the first electrode piece, the first electrode piece is dried; and / or, Before manufacturing a rubber frame on one surface of the first pole piece, performing a deflection correction process on the first pole piece; and / or, After the rubber frame is manufactured on one surface of the first pole piece, a defect detection process is performed on the first pole piece; Send the NG first pole piece to the NG station.

[0014] The second aspect of the present invention provides a solid-state battery cell manufacturing device based on single-sided rubber frame molding, which is used to implement the solid-state battery cell manufacturing method based on single-sided rubber frame molding described in the first aspect of the present invention. The solid-state battery cell manufacturing device based on single-sided rubber frame molding includes: A rubber frame molding mechanism, used for manufacturing a rubber frame on the surface of the first pole piece, wherein the thickness of the rubber frame is greater than the thickness of the second pole piece; the rubber frame molding mechanism is arranged above the molding station; The lamination mechanism is used to alternately stack the second pole piece and the first pole piece with the rubber frame in sequence, so that the second pole piece is embedded in the rubber frame of the first pole piece; the lamination mechanism is arranged at the lamination station.

[0015] According to the solid-state battery cell manufacturing device based on single-sided glue frame molding according to the embodiment of the second aspect of the present invention, there are at least the following beneficial effects: a glue frame is manufactured on one of the surfaces of the first pole piece by a glue frame molding mechanism, and the thickness of the formed glue frame is greater than the thickness of the second pole piece; therefore, during the stacking process, the second pole piece is completely embedded in the glue frame of the first pole piece, and the glue frame can ensure that the solid electrolyte layer and the pole piece of the solid-state battery cell will not be positionally offset during the isostatic pressing process, thereby improving the connection effect between the solid electrolyte layer and the pole piece, and the glue frame can support the first pole piece to avoid bending of the first pole piece during the force process as much as possible, so as to reduce the probability of deformation of the first pole piece; by arranging a single-sided glue frame on a single surface of the first pole piece, there is no need to perform glue frame molding twice on one pole piece, thereby reducing the process flow and the cost of the glue frame molding equipment, and at the same time, only one glue frame molding is required for a single pole piece, and the positions of the glue frames of the stacked multiple first pole pieces are basically the same, and the relative positions of the glue frames and the first pole pieces can be unified, so that the glue frames on both sides of the first pole piece have a higher degree of alignment after stacking.

[0016] In some embodiments of the present invention, the solid-state battery cell manufacturing device based on single-sided rubber frame molding further includes: The tab adhesive pasting mechanism is used to manufacture tab adhesive tape at the tab of the first pole piece or the second pole piece, and the tab adhesive pasting mechanism is arranged above the pasting station.

[0017] In some embodiments of the present invention, the solid-state battery cell manufacturing device based on single-sided rubber frame molding further includes: A first cutting mechanism, used for cutting the first pole piece; the first cutting mechanism is provided with a first cutting station; The second cutting mechanism is used for cutting the second pole piece; the second cutting mechanism is provided with a second cutting station.

[0018] In some embodiments of the present invention, the solid-state battery cell manufacturing device based on single-sided rubber frame molding further includes: A drying mechanism, which is used to dry the first electrode with the glue frame; and / or, A defect detection mechanism, which is used to perform defect detection on the first pole piece with the glue frame and remove the NG pole piece; and / or, A deviation correction mechanism is used to correct the deviation of the first pole piece.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] A deviation correction mechanism is used to correct the deviation of the first pole piece. Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. Figure 1 It is a schematic flow chart of a solid-state battery cell manufacturing method based on single-sided rubber frame molding provided in accordance with an embodiment of the present invention; Figure 2 It is a schematic flow chart of a solid-state battery cell manufacturing method based on single-sided rubber frame molding according to another embodiment of the present invention; Figure 3 It is a schematic flow chart of a solid-state battery cell manufacturing method based on single-sided rubber frame molding according to another embodiment of the present invention; Figure 4 This is one of the structural schematic diagrams of a solid-state battery cell provided according to an embodiment of the present invention; Figure 5 This is the second structural schematic diagram of a solid-state battery cell provided according to an embodiment of the present invention; Figure 6 2 is a front view of a solid-state battery cell manufacturing device based on single-sided rubber frame molding according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of a solid-state battery cell manufacturing device based on single-sided rubber frame molding according to an embodiment of the present invention; Figure 8 is a front view of a solid-state battery cell manufacturing device based on single-sided rubber frame molding according to another embodiment of the present invention; Fig. 9 is a front view of a solid-state battery cell manufacturing device based on single-sided rubber frame molding according to another embodiment of the present invention; Fig.10 is a schematic structural diagram of a transfer roller of a solid-state battery cell manufacturing device based on single-sided rubber frame molding according to another embodiment of the present invention; wherein, Fig.10 (a) is a schematic side view of the transfer roller, Fig.10 (b) is a schematic diagram showing the development of the outer peripheral surface of the transfer roller.

[0021] Reference numerals: 110, first pole piece; 120, solid electrolyte layer; 130, rubber frame; 140, second pole piece; 150, pole ear; 160, pole ear tape; 200, first unwinding device; 300, rubber frame forming mechanism; 310, transfer roller; 311, embossed portion; 312, avoidance area; 400, drying mechanism; 510, first cutting mechanism; 520, defect detection mechanism; 610, pole piece buffer device; 620, deviation correction mechanism; 630, tension rocker device; 710, protective film unwinding device; 720, winding device. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it is to be understood that a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Solid-state batteries are new batteries that use solid electrolytes to replace the diaphragms and liquid electrolytes in traditional liquid batteries. Solid-state lithium batteries can use lithium metal anodes to replace the graphite or silicon anodes in traditional lithium-ion batteries. Compared with traditional anodes, lithium metal anodes have higher energy density, allowing solid-state batteries to store more energy in the same volume, making solid-state batteries likely to replace liquid batteries and be widely used.

[0026] The existing solid-state battery production process is not very mature. Compared with the liquid electrolyte that can fully contact the electrode, the solid electrolyte layer in the solid-state battery is difficult to fit tightly with the electrode, which adversely affects the quality of the solid-state battery.

[0027] In the related art, in order to improve the positioning and bonding effect between the solid electrolyte layer and the pole piece, so as to improve the quality of the solid-state battery, our company manufactures a rubber frame on both sides of one of the positive pole piece and the negative pole piece through a molding process, and the other is embedded in the rubber frame, so that the positive pole piece and the negative pole piece are staggered and stacked into a battery cell, and the battery cell is subjected to isostatic pressing treatment; through the enclosure and limiting effect of the rubber frame, the lateral displacement between the positive pole piece and the negative pole piece can be limited, and the solid electrolyte layer and the pole piece can be closely fitted. In the traditional rubber frame manufacturing process, the pole pieces are usually sent to the first molding station, the flipping station and the second molding station in turn, and the rubber frames are manufactured on the two surfaces of the pole piece by the rubber frame molding mechanism. However, such a manufacturing method will lead to a complex structure of the corresponding manufacturing equipment, a large space occupation, and high cost. In addition, it is difficult to ensure the alignment of the two rubber frames on both sides of the pole piece by manufacturing the rubber frame on the two opposite sides of the pole piece.

[0028] Based on the above-mentioned problems, the present invention provides a solid-state battery cell manufacturing method and device based on single-sided glue frame molding, in which a single pole piece only needs to be molded with a single-sided glue frame, and there is no need to perform glue frame molding twice on the same pole piece. Only one set of glue frame molding mechanism is required to complete the molding of the glue frame, thereby reducing the space occupied by the equipment. The single-sided glue frame can ensure the alignment of the two glue frames located on the two opposite surfaces of the pole piece, and the glue frame manufacturing efficiency is high, thereby increasing the connection effect between the pole pieces in the solid-state battery cell, and avoiding the problem that the solid electrolyte layer and the pole piece of the solid-state battery cell are easily offset during the isostatic pressing process, and the edges of the two adjacent pole pieces are easily bent and contacted during the pressurization process, causing a short circuit, thereby effectively improving the manufacturing quality of the solid-state battery.

[0029] Reference below Figures 1 to 10 A method and device for manufacturing a solid-state battery cell based on single-sided rubber frame molding according to an embodiment of the present invention are described.

[0030] like Figures 1 to 10 As shown, the solid-state battery cell manufacturing method based on single-sided rubber frame molding according to the first embodiment of the present invention is applied to the manufacturing process of solid-state batteries. The solid-state battery cell manufacturing method based on single-sided rubber frame molding includes the following steps: Step S20: manufacturing a plastic frame 130 on one surface of the first pole piece 110 located at the molding station; Step S30: The second pole piece 140 and the first pole piece 110 with the rubber frame 130 are conveyed to the lamination station alternately in sequence, and the first pole piece 110 and the second pole piece 140 are alternately stacked in sequence, so that the second pole piece 140 is embedded in the rubber frame 130 of the first pole piece 110; wherein, the electrodes of the first pole piece 110 and the second pole piece 140 are opposite, and the thickness of the rubber frame 130 is greater than or equal to the thickness of the second pole piece 140.

[0031] By manufacturing a rubber frame 130 on one of the surfaces of the first pole piece 110, the second pole piece 140 can be embedded in the rubber frame 130 of the first pole piece 110 during the stacking process. The rubber frame 130 can ensure that the solid electrolyte layer and the pole piece of the solid-state battery cell will not be offset during the isostatic pressing process, thereby improving the connection effect between the solid electrolyte layer and the pole piece. In addition, the rubber frame 130 can support the first pole piece 110 to avoid bending of the first pole piece 110 during the force application process as much as possible, thereby reducing the first pole piece 110. 10 The probability of deformation; by setting a single-sided glue frame 130 on a single surface of the first pole piece 110, there is no need to perform two moldings of the glue frame 130 on one pole piece, thereby reducing the cost of the process flow and the glue frame 130 molding equipment. At the same time, only one molding of the glue frame 130 is required for a single pole piece, and the positions of the glue frames 130 of the stacked multiple first pole pieces 110 are basically the same, and the relative positions of the glue frames 130 and the first pole piece 110 can be unified, so that the glue frames 130 on both sides of the first pole piece 110 have a higher degree of alignment after stacking.

[0032] It can be understood that the thickness of the rubber frame 130 is greater than or equal to the thickness of the second pole piece 140, so that the second pole piece 140 can be completely embedded in the rubber frame 130, and the rubber frame 130 is manufactured on one of the surfaces of the first pole piece 110, and the first pole piece 110 and the second pole piece 140 are alternately stacked, so that a single rubber frame 130 is formed between two adjacent first pole pieces 110. That is to say, compared with the double-sided rubber frame 130 in the prior art, the single-sided rubber frame 130 arranged on the first pole piece 110 has a larger thickness and can connect the solid electrolyte layer and the second pole piece 140 located on both sides of the second pole piece 140. There is no need to manufacture the rubber frame 130 on the two opposite surfaces of the first pole piece 110, so that the alignment degree of the two rubber frames 130 located on the two opposite surfaces of the pole piece is high.

[0033] The first pole piece 110 and the second pole piece 140 are two pole pieces with opposite polarities. The first pole piece 110 may be a negative pole piece, and the second pole piece 140 may be a positive pole piece. Of course, in other embodiments, the first pole piece 110 may be a positive pole piece, and the second pole piece 140 may be a negative pole piece. It is only necessary that the polarities of the first pole piece 110 and the second pole piece 140 are opposite, and the embodiments of the present invention do not specifically limit this.

[0034] In step S20, the first pole piece 110 can be a single pole piece in sheet form, or a preset pole piece area in the first pole piece material strip; the rubber frame 130 is manufactured on one of the surfaces of the first pole piece 110 by using the rubber frame molding mechanism 300. The rubber frame 130 can be formed at the edge of the first pole piece 110 by coating, or the rubber frame 130 can be formed on the first pole piece 110 by screen printing, or the rubber frame 130 can be transferred to the first pole piece 110 by pressing.

[0035] In step S30, the first pole piece 110 and the second pole piece 140 can be alternately stacked in sequence by using a stacking mechanism, so that the second pole piece 140 is embedded in the rubber frame 130 to improve the positioning accuracy of the solid electrolyte layer 120 and the first pole piece 110 and the second pole piece 140; the thickness of the rubber frame 130 is greater than the thickness of the second pole piece 140, and a single-sided rubber frame 130 can be manufactured on the first pole piece 110, and there is no need to manufacture a secondary rubber frame 130 for the first pole piece 110. Considering that the solid electrolyte layer 120 has a poor bonding effect with the pole piece compared to the liquid electrolyte, it is difficult to achieve a close bonding between the solid electrolyte layer 120 and the pole piece. A pressing step may be added to press the stacked first electrode piece 110 and the second electrode piece 140, so that the first electrode piece 110, the solid electrolyte layer 120 and the second electrode piece 140 can be tightly fitted together, and the rubber frame 130 on the first electrode piece 110 can limit the lateral displacement of the solid electrolyte layer 120 relative to the first electrode piece 110 and the second electrode piece 140, thereby improving the pressing and fitting effect of the solid electrolyte layer 120 with the first electrode piece 110 and the second electrode piece 140, that is, improving the fitting effect of the solid electrolyte layer 120 with the positive electrode piece and the negative electrode piece.

[0036] It should be noted that, in step S30 , the first pole piece 110 and the second pole piece 140 are sheet-shaped pole pieces, and the battery cell is formed by alternately stacking the first pole piece 110 and the second pole piece 140 .

[0037] See also Figure 1 , Figure 4 and Figure 5 In some embodiments, the method further comprises the following steps: Step S10 : manufacturing a tab tape at the tab 150 of one of the first pole piece 110 and the second pole piece 140 ; ​​wherein the adhesive frame 130 is disconnected at the tab 150 .

[0038] The tab 150 is an electrical connection part on the pole piece, which is used to connect to the external circuit; the tab tape 160 can fix the tab 150 to prevent the tab 150 from displacement, bending or damage during battery assembly and use, and can also prevent the tab 150 from accidentally contacting other parts and causing a short circuit; the tab tape 160 is manufactured at the tab 150 of one of the first pole piece 110 and the second pole piece 140. By manufacturing the tab tape 160 once, the tabs 150 of the first pole piece 110 and the second pole piece 140 can be isolated to avoid the tabs 150 of the first pole piece 110 and the second pole piece 140 from contacting each other and causing a short circuit as much as possible; the rubber frame 130 is disconnected at the tab 150 to avoid the rubber frame 130 from interfering with the function of the tape. It should be noted that the tab tape 160 needs to be set on the surfaces of both sides of the tab 150 to prevent any surface of the tab 150 from accidentally contacting other parts and causing a short circuit.

[0039] See also Figure 2 , Figure 4 and Figure 5 In some embodiments, the step of manufacturing the tab tape 160 at the tab 150 of one of the first pole piece 110 and the second pole piece 140 comprises the following steps: Step S11: sending the first pole piece 110 to a pasting station, and manufacturing a pole ear tape 160 at the pole ear 150 of the first pole piece 110; Step S12: conveying the first pole piece 110 with the tab tape 160 to a forming station.

[0040] In step S11, the plurality of first pole sheets 110 may be transferred to the pasting station one by one manually or by a robot, and the tab tape 160 may be pasted on the tabs 150 of the first pole sheets 110 by the tab adhesive pasting mechanism. Of course, the first pole sheets 110 may also be conveyed to the pasting station by a conveying device such as a belt conveyor. In step S11, the preset pole sheet area in the first pole sheet material strip may also be conveyed to the pasting station by a vacuum belt conveyor mechanism or the like.

[0041] In step S11, after the first pole piece 110 processed in step S11, the first pole piece 110 with the tab tape 160 is transferred to the molding station so as to perform step 20 of manufacturing the rubber frame 130 on the first pole piece 110. In step 30, the second pole piece 140 and the first pole piece 110 with the tab tape 160 and the rubber frame 130 are stacked; the process of attaching the tab tape 160 and manufacturing the rubber frame 130 is performed on the first pole piece 110, and the tab tape 160 and the rubber frame 130 are concentrated on the first pole piece 110, simplifying the processing flow of the second pole piece 140, making the overall manufacturing process clearer and smoother.

[0042] See also Figure 3 , Figure 4 and Figure 5 In some embodiments, the step of manufacturing the tab tape 160 at the tab 150 of one of the first pole piece 110 and the second pole piece 140 comprises the following steps: Step S13 : sending the second pole piece 140 to a pasting station, and manufacturing a pole tab tape 160 at the pole tab 150 of the second pole piece 140 .

[0043] In step S13, the plurality of second pole pieces 140 may be transferred to the pasting station one by one manually or by a robot, and the pole ear adhesive tape 160 may be pasted on the pole ear 150 of the second pole piece 140 by the pole ear adhesive pasting mechanism. Of course, the second pole pieces 140 may also be transported to the pasting station by a conveying device such as a belt conveyor. Alternatively, the preset pole piece area in the second pole piece material strip may be transported to the pasting station by a vacuum belt conveying mechanism or the like.

[0044] In step S13 , the second pole piece 140 may be a single pole piece in a sheet shape, or may be a preset pole piece region in a second pole piece strip.

[0045] If the second pole piece 140 in step S13 is a single pole piece in the form of a sheet, and the first pole piece 110 in step S20 is a single pole piece in the form of a sheet; the second pole piece 140 can be transferred to the stacking station after the tab tape 160 is affixed on the second pole piece 140 in step S13, and the rubber frame 130 can be manufactured on the first pole piece 110 in step S20 and the first pole piece 110 can be transferred to the stacking station, and the second pole piece 140 with the tab tape 160 and the first pole piece 110 with the rubber frame 130 can be stacked in step 30; with such a design, the rubber frame 130 and the tab tape 160 are arranged on different pole pieces, so that the process of manufacturing the rubber frame 130 and the process of affixing the tab tape 160 can be carried out simultaneously, thereby shortening the production time.

[0046] See also Figure 4 and Figure 5 In some embodiments, the second electrode sheet 140 and the first electrode sheet 110 with the plastic frame 130 are alternately transported to the lamination station in sequence, and the first electrode sheet 110 and the second electrode sheet 140 are alternately stacked in sequence, so that the second electrode sheet 140 is embedded in the plastic frame 130 of the first electrode sheet 110, including the following steps: Step S31: The second electrode sheet 140 and the first electrode sheet 110 with the rubber frame 130 are conveyed alternately to the stacking station in sequence, and the first electrode sheet 110, the solid electrolyte layer 120 and the second electrode sheet 140 are alternately stacked in sequence, so that the second electrode sheet 140 is embedded in the rubber frame 130 of the first electrode sheet 110, and the solid electrolyte layer 120 is embedded in the inner periphery of the rubber frame 130.

[0047] In step S31, the solid electrolyte layer 120 is embedded in the inner periphery of the plastic frame 130. The first pole piece 110 and the plastic frame 130 can serve as a support substrate for the solid electrolyte layer 120, and the processing is relatively simple. Specifically, during the lamination process, the first pole piece 110, the solid electrolyte layer 120 and the second pole piece 140 are stacked in sequence, and the solid electrolyte layer 120 is embedded in the plastic frame 130 by pressing.

[0048] Of course, in other embodiments, the solid electrolyte layer 120 can also be formed on the first pole piece 110, and then the solid electrolyte layer 120 on the first pole piece 110 is coated with glue to form a glue frame 130 on the solid electrolyte layer 120. In the subsequent lamination step, the first pole piece 110 and the second pole piece 140 are stacked, so that the first pole piece 110, the solid electrolyte layer 120 and the second pole piece 140 can be stacked in sequence, which is conducive to reducing the difficulty of stacking the first pole piece 110, the solid electrolyte layer 120 and the second pole piece 140 in sequence, so as to meet the manufacturing requirements of the battery cell of the solid-state battery. The second pole piece 140 is embedded in the glue frame 130 to limit the lateral displacement of the solid electrolyte layer 120 relative to the second pole piece 140, so as to improve the pressing and bonding effect of the solid electrolyte layer 120 with the positive pole piece and the negative pole piece.

[0049] In some embodiments, the second electrode sheet 140 and the first electrode sheet 110 with the plastic frame 130 are alternately transported to the lamination station, and the first electrode sheet 110 and the second electrode sheet 140 are alternately stacked in sequence, including the following steps: Step S41: transporting the first pole piece 110 to the first cutting station, and cutting the first pole piece 110; Step S42: transport the second pole piece 140 to the second cutting station and cut the second pole piece 140.

[0050] If the first pole piece 110 or the second pole piece 140 is a pole piece strip, it is necessary to cut the first pole piece 110 or the second pole piece 140 before stacking to form a plurality of sheet-shaped pole pieces; if the size of the first pole piece 110 or the second pole piece 140 does not meet the specifications, the corresponding pole piece also needs to be cut so that its size is within the set range; the first pole piece 110 can be cut by the first cutting mechanism 510, and the second pole piece 140 can also be cut by the second cutting mechanism. Of course, the first pole piece 110 and the second pole piece 140 can also be cut in sequence by the same cutting mechanism.

[0051] Step S41 can be performed before the step of manufacturing the rubber frame 130 for the first pole piece 110, can be performed after the step of manufacturing the rubber frame 130 for the first pole piece 110, can also be performed before the step of manufacturing the tab tape 160 for the first pole piece 110; can also be performed after the step of attaching the tab tape 160 to the first pole piece 110; step S42 can be performed before the step of attaching the tab tape 160 to the second pole piece 140, can also be performed after the step of attaching the tab tape 160 to the second pole piece 140. Cutting the first pole piece 110 and the second pole piece 140 to form a single sheet-shaped pole piece is conducive to further standardizing the size of the first pole piece 110 and the second pole piece 140, and is helpful for laminating the first pole piece 110 and the second pole piece 140.

[0052] In some embodiments, the method further comprises the following steps: Step S51: after manufacturing the plastic frame 130 on one surface of the first pole piece 110, drying the first pole piece 110; and / or, Step S52: before manufacturing the plastic frame 130 on one surface of the first pole piece 110, performing a deflection correction process on the first pole piece 110; and / or, Step S53: after the plastic frame 130 is manufactured on one surface of the first pole piece 110, a defect detection process is performed on the first pole piece 110; Step S54: Send the NG first pole piece 110 to the NG station.

[0053] It is understandable that the electrode deviation correction step, the electrode drying step and the electrode screening step can be selectively performed according to actual needs. The electrode drying step can be performed before the electrode screening step or after the electrode screening step.

[0054] Whenever the first pole piece 110 is sent to the molding station, step S51 needs to be performed. Specifically, the first pole piece 110 is corrected by the correction mechanism 620 to avoid the molding accuracy of the rubber frame 130 being deteriorated due to the position offset of the first pole piece 110. Specifically, the correction process needs to be completed before the first pole piece 110 is transferred to the molding station.

[0055] Whenever a glue frame 130 is formed on any surface of the first pole piece 110 , step S52 needs to be executed. Specifically, the first pole piece 110 and the glue frame 130 thereon are dried by the drying mechanism 400 to enable the glue frame 130 to be shaped faster and improve the molding effect of the glue frame 130 .

[0056] Whenever a plastic frame 130 is formed on any surface of the first pole piece 110, steps S53 and S54 need to be performed. Specifically, the first pole piece 110 and the plastic frame 130 thereon are inspected by the defect detection mechanism 520. If the first pole piece 110 is detected to have defects, the first pole piece 110 is judged to be an NG (Not Good, unqualified) first pole piece 110, and then the NG first pole piece 110 needs to be transferred to the NG station by a manipulator. Of course, an NG magazine or a waste box can be provided at the NG station to collect the NG first pole piece 110. If the first pole piece 110 is detected to be good and has no defects, the first pole piece 110 is judged to be qualified and is transferred to the lamination station. The photographed pattern of the rubber frame 130 on the first pole piece 110 can be obtained by shooting with a camera module, and the photographed pattern can be compared with the set pattern to determine whether the molding effect of the rubber frame 130 on the first pole piece 110 is qualified. If the compared deviation value is less than the first set threshold, the corresponding first pole piece 110 is determined to be qualified; if the compared deviation value is greater than or equal to the second set threshold, the corresponding first pole piece 110 is determined to be unqualified.

[0057] In step S54, when it is determined that the rubber frame 130 has defects, the first pole piece 110 corresponding to the defective rubber frame 130 is removed, thereby avoiding the defective first pole piece 110 from participating in the stacking and pressing steps, which may cause quality defects in the solid-state battery, and is beneficial to improving the manufacturing quality of the battery cell of the solid-state battery.

[0058] Similarly, whenever any surface of the first pole piece 110 or the second pole piece 140 is manufactured, steps S53 and S54 can also be executed to obtain a photographic pattern of the pole ear 150 of the first pole piece 110 or the second pole piece 140 by shooting with a camera module, and compare the photographed pattern with the set pattern to determine whether the placement effect of the pole ear 150 on the first pole piece 110 is qualified.

[0059] See also Figures 4 to 9 According to the second aspect of the present invention, a solid-state battery cell manufacturing device based on single-sided rubber frame molding is used to implement the solid-state battery cell manufacturing method based on single-sided rubber frame molding as in the first embodiment. The solid-state battery cell manufacturing device based on single-sided rubber frame molding includes a rubber frame molding mechanism 300 and a stacking mechanism.

[0060] The rubber frame molding mechanism 300 is used to implement step S20 shown in the first embodiment, that is, to manufacture the rubber frame 130 on the surface of the first pole piece 110, and the thickness of the rubber frame 130 is greater than the thickness of the second pole piece 140; the rubber frame molding mechanism 300 is arranged above the molding station; The stacking mechanism is used to implement step S30 shown in the above-mentioned first aspect embodiment, that is, to alternately stack the first pole piece 110 and the second pole piece 140 with the rubber frame 130 in sequence. The stacking mechanism is arranged at the stacking station so that the rubber frame 130 formed on the first pole piece 110 can be embedded with the second pole piece 140 to improve the positioning accuracy of the solid electrolyte layer 120 and the first pole piece 110 and the second pole piece 140.

[0061] The solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes a first pole piece conveying mechanism, which is an existing vacuum belt conveying mechanism. The vacuum belt conveying mechanism includes a vacuum negative pressure belt, and a first pole piece material belt is arranged on the vacuum negative pressure belt. The first pole piece material belt is used to convey the first pole piece 110, and the vacuum negative pressure belt provides a molding station.

[0062] The glue frame molding mechanism 300 includes a screen printing mechanism and a lifting mechanism. The screen printing mechanism is located above the molding station, and the screen printing mechanism can move up and down relative to the molding station under the driving action of the lifting mechanism, and apply glue to the first pole piece strip on the molding station. When the unrolled first pole piece strip moves to the molding station, the solid electrolyte layer 120 and the screen printing mechanism are arranged opposite to each other up and down, and then the screen printing mechanism moves downward to print the glue frame 130 on the upper surface of the first pole piece strip.

[0063] The vacuum belt conveyor mechanism is located below the screen printing mechanism. When the vacuum belt conveyor mechanism is in operation, the vacuum negative pressure belt can apply vacuum adsorption to the first pole piece material belt, and drive the first pole piece material belt to move, so as to move the first pole piece 110 corresponding to the first pole piece material belt to the molding station, so that the screen printing mechanism can perform glue coating on the first pole piece material belt. After one glue frame 130 is coated, the first pole piece material belt continues to move under the action of the vacuum negative pressure belt, so that the screen printing mechanism can manufacture multiple glue frames 130 in sequence on the subsequent parts of the first pole piece material belt.

[0064] like Figures 9 and 10 As shown, in other examples, the rubber frame molding mechanism 300 includes a roller transfer mechanism, and the roller transfer mechanism includes a transfer roller 310 assembly and a rotary drive assembly. Among them, the transfer roller 310 assembly includes two transfer rollers 310 with the same or different diameters, and the two transfer rollers 310 are arranged at an interval to jointly form a glue coating channel for the first pole piece material strip to pass through. The glue coating channel provides a molding station. When the first pole piece material strip passes through the glue coating channel, the outer peripheral surfaces of the two transfer rollers 310 are respectively in contact with the two opposite surfaces of the first pole piece material strip. The rotary drive assembly can be a motor, which is used to drive at least one transfer roller 310 to rotate and perform glue coating on the first pole piece material strip passing through the glue coating channel.

[0065] Specifically, the two transfer rollers 310 are arranged opposite to each other in the upper and lower directions. The lower transfer roller 310 can effectively support the first pole piece material strip, and the outer peripheral surface of the upper transfer roller 310 is provided with a convex portion 311. As shown in the figure, after the outer peripheral surface of the upper transfer roller 310 is unfolded, the convex portion 311 is in the shape of a square frame, and a square avoidance area 312 is formed in the middle of the convex portion 311.

[0066] It can be understood that, during the rotation of the transfer roller 310 on the upper side, the colloidal slurry in the slurry basin located above flows to the convex portion 311 of the transfer roller 310 through the bottom outlet. When the convex portion 311 contacts the upper surface of the first pole piece strip, the colloidal slurry is transferred to the first pole piece strip, thereby forming a glue frame 130. During this gluing process, the avoidance area 312 can provide an avoidance effect for the solid electrolyte layer 120 on the first pole piece strip, thereby preventing the convex portion 311 from crushing the solid electrolyte layer 120. The first pole piece strip is continuously coated with glue by the roller transfer mechanism, and there is no need to pause the conveyance of the first pole piece strip for gluing.

[0067] See also Figure 6 , Figure 8 and Fig. 9 In some embodiments, the solid-state battery cell manufacturing device based on single-sided glue frame molding may further include a drying mechanism 400, which can perform step S51 in the solid-state battery cell manufacturing method based on single-sided glue frame molding of the first embodiment. The drying mechanism 400 is mainly used to solidify the glue frame 130 on the first pole piece strip, so that the structure of the glue frame 130 is more stable and strong, so that the glue frame 130 can play a good supporting and separating and insulating role in the solid-state battery cell. The drying mechanism 400 can use existing drying and curing equipment.

[0068] It can be understood that, in some embodiments, the rubber frame molding mechanism 300 and the drying mechanism 400 are arranged in sequence along the conveying path of the first pole piece material strip, and after a rubber frame 130 is manufactured by the rubber frame molding mechanism 300, the first pole piece 110 with the rubber frame 130 is sent to the drying mechanism 400 to dry and cure the rubber frame 130.

[0069] Of course, the solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes a first unwinding device 200. The first unwinding device 200 is used to unwind the first pole piece 110 roll to unwind a long first pole piece strip with a solid electrolyte layer 120, which is convenient for subsequent coating and curing of the rubber frame 130, as shown in Figure 8. The direction a is the conveying direction of the first pole piece strip.

[0070] It can be understood that the first unwinding device 200 can be an existing unwinding machine, whose main structure includes an unwinding roller and a rotating drive mechanism. The pole piece roll is installed on the unwinding roller. The rotating drive mechanism can be a motor, which is used to drive the unwinding roller to rotate so that the unwinding roller can continuously unwind the first pole piece material strip.

[0071] See also Figure 8 and Fig. 9 In some embodiments, the solid-state battery cell manufacturing device based on single-sided rubber frame molding further includes a protective film unwinding device 710 and a rewinding device 720. The protective film unwinding device 710 is used to unwind the protective film material strip; the rewinding device 720 is used to rewind the first pole piece material strip with the rubber frame 130 and the protective film material strip together to form a coated pole piece roll.

[0072] It can be understood that in the process of unwinding the coated electrode sheet roll, since the protective film tape is in contact with the first electrode sheet tape, the protective film tape and the first electrode sheet tape need to be separated. At this time, the protective film tape can be wound by the protective film winding mechanism to separate the protective film tape from the first electrode sheet tape, so as to facilitate the subsequent cutting and stacking of the first electrode sheet tape with the solid electrolyte layer 120 and the rubber frame 130.

[0073] The protective film unwinding device 710 can be an existing unwinding machine, and the unwinding device 200 can be an existing winding machine. When the protective film unwinding device 710 and the unwinding device 200 are running at the same time, the first pole piece tape with the solid electrolyte layer 120 and the rubber frame 130 and the unwound protective film tape can be wound together through the unwinding device 200, thereby completing the winding work of the first pole piece tape. In order to allow the protective film tape to be smoothly attached to the first pole piece tape, multiple rollers can be provided in the unwinding path of the protective film tape and the winding path of the first pole piece tape.

[0074] It can be understood that during the winding process, the protective film strip can be bonded to the surface of the first pole piece strip with the glue frame 130 or the surface without the glue frame 130, so that the protective film can play a good role in separation and protection between the inner and outer layers of the pole pieces, avoiding the problem that the inner and outer layers of the first pole piece strips are firmly adhered due to the action of the glue frame 130, resulting in the first pole piece strip being difficult to separate or even damaged during the subsequent unwinding work.

[0075] The lamination mechanism is used to laminate the first pole piece 110 and the second pole piece 140 to form a solid-state battery cell.

[0076] The stacking mechanism can adopt the existing stacking equipment, and its main structure includes a stacking platform and a handling robot. The stacking platform is provided with a stacking station. The handling robot includes a vacuum suction cup and a robot arm. The robot arm can drive the vacuum suction cup to move and adsorb or release the pole piece. There are two handling robots, one of which can apply vacuum adsorption to the first pole piece 110 with a solid electrolyte layer 120 and a rubber frame 130, and the other handling robot can apply vacuum adsorption to the second pole piece 140. Therefore, the first pole piece 110 and the second pole piece 140 are respectively transported to the stacking station of the stacking platform by two handling robots, and stacked in an up-down order. After the solid-state battery cell is completed by stacking, the solid-state battery cell can be removed manually or by a feeding robot.

[0077] In some embodiments, the solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes a pole ear glue sticking mechanism, which is used to implement step S10 of the above-mentioned first aspect embodiment, that is, it is used to manufacture the pole ear tape 160 at the pole ear 150 of the first pole piece 110 or the second pole piece 140, and the pole ear glue sticking mechanism is arranged above the sticking station.

[0078] The tab adhesive pasting mechanism can manufacture the tab tape 160 at the tab 150 of the first pole piece 110, and can manufacture the tab tape 160 at the preset tab 150 of the first pole piece material strip, or can be a conveyor belt conveying the sheet-shaped first pole piece 110 through the prior art, and manufacture the tab tape 160 at the tab 150 of the first pole piece 110; the tab adhesive pasting mechanism can also manufacture the tab tape 160 at the tab 150 at the preset tab 150 of the second pole piece material strip, or can be a conveyor belt conveying the sheet-shaped second pole piece 140 through the prior art, and manufacture the tab tape 160 at the tab 150 of the second pole piece 140. This article takes the manufacture of the tab tape 160 at the preset tab 150 of the first pole piece material strip as an example.

[0079] A pasting station is arranged on the vacuum negative pressure belt of the first electrode material belt conveying mechanism, and the electrode ear glue pasting mechanism includes a tape unwinding component, a release paper winding component and a material transfer film winding component.

[0080] The function of the tape unwinding assembly is to unwind the transfer film, wherein the transfer film is formed with a plurality of tab tapes 160, and the plurality of tab tapes 160 are sequentially spaced and distributed along the extension direction of the transfer film, and the transfer film is coated with a release paper for covering the tab tapes 160. The function of the release paper winding assembly is to peel off the release paper from the transfer film and to wind it up, so that the tab tape 160 can be transferred to the preset tab 150 of the first pole piece material strip at the forming station. The function of the transfer film winding assembly is to wind up the transfer film from which the release paper has been peeled off.

[0081] The tab tape pasting mechanism also includes a lamination assembly in the prior art, which can transfer the tape to the tab 150 of the first pole piece material strip by lamination. The tape unwinding assembly can be an existing unwinding machine, and the release paper winding assembly and the material transfer film winding assembly can be existing winding machines. The material transfer film, the tab tape 160 and the release paper together form a composite film, and the tape unwinding assembly can continuously unwind the composite film. At this time, the release paper winding assembly can peel off the release paper on the composite film, so that the tab tape 160 on the composite film is in a bare state, so that the tab tape 160 can be transferred to the tab 150 of the first pole piece material strip by lamination at the pasting station, and the material transfer film winding assembly can wind up the material transfer film and separate the material transfer film and the tab tape 160.

[0082] See also Figure 7 In some embodiments, the solid-state battery cell manufacturing device based on single-sided rubber frame molding further includes a first cutting mechanism 510, which is used in step S41 of the embodiment of the first aspect of the embodiment, that is, used to cut the first pole piece 110; a cutting station is arranged on the vacuum negative pressure belt of the first pole piece conveying mechanism, and the first cutting mechanism 510 is set at the first cutting station; the first cutting mechanism 510 can be used to cut the first pole piece strip with the rubber frame 130 to form pole pieces with preset sheet-shaped pole piece areas and the rubber frame 130. In another embodiment, the first cutting mechanism 510 can also cut the sheet-shaped first pole piece 110 so that its size is within a set range.

[0083] The first pole piece material strip conveys the first pole piece 110 to the first cutting station. The first cutting mechanism 510 can adopt the existing pole piece cutting equipment. Its main structure includes a cutting platform, a cutting knife and a linear drive mechanism. The cutting knife is located above the cutting station. The linear drive mechanism can be a hydraulic cylinder, a pneumatic cylinder, etc., which can drive the cutting knife to move in the up and down directions, move the cutting knife downward, and cut the first pole piece material strip into pieces.

[0084] The solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes a second pole piece conveying mechanism, which is an existing vacuum belt conveying mechanism. The vacuum belt conveying mechanism includes a vacuum negative pressure belt, on which a second pole piece material belt is arranged, and the second pole piece material belt is used to convey the second pole piece 140.

[0085] Of course, the solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes a second unwinding device. The second unwinding device is used to unwind the second pole piece 140 roll to unwind a long second pole piece material strip, which is convenient for subsequent affixing of the pole ear tape 160 or cutting.

[0086] It can be understood that the second unwinding device can be an existing unwinding machine, whose main structure includes an unwinding roller and a rotating drive mechanism. The pole piece roll is installed on the unwinding roller. The rotating drive mechanism can be a motor, which is used to drive the unwinding roller to rotate and allow the unwinding roller to continuously unwind the second pole piece material strip.

[0087] In some embodiments, the solid-state battery cell manufacturing device based on single-sided rubber frame molding further includes a second cutting mechanism, which is used in step S42 of the embodiment of the first aspect of the embodiment, that is, used to cut the second pole piece 140; a cutting station is arranged on the vacuum negative pressure belt of the second pole piece conveying mechanism, and the second cutting mechanism is arranged at the second cutting station; the second cutting mechanism can be used to cut the second pole piece strip to form pole pieces with preset sheet-shaped pole piece areas and rubber frames 130. In another embodiment, the second cutting mechanism can also cut the sheet-shaped second pole piece 140 so that its size is within a set range.

[0088] The second pole piece material strip conveys the second pole piece 140 to the second cutting station. The second cutting mechanism can adopt the existing pole piece cutting equipment. Its main structure includes a cutting platform, a cutting knife and a linear drive mechanism. The cutting knife is located above the cutting station. The linear drive mechanism can be a hydraulic cylinder, a pneumatic cylinder, etc., which can drive the cutting knife to move in the up and down directions, move the cutting knife downward, and cut the first pole piece material strip into pieces.

[0089] Furthermore, when the first unwinding device 200 , the rubber frame forming mechanism 300 , the drying mechanism 400 , and the first cutting mechanism 510 are arranged in sequence along the conveying path of the first electrode sheet material strip, a electrode sheet cache device 610 is respectively provided between the rubber frame forming mechanism 300 , the drying mechanism 400 , and the first cutting mechanism 510 .

[0090] It is understandable that the pole piece buffer device 610 can adopt the existing pole piece buffer mechanism. The pole piece buffer device 610 located between the first unwinding device 200 and the glue frame forming mechanism 300 can cache the first pole piece material strip to balance the speed difference between the unwinding process and the glue coating process, maintain the tension of the first pole piece material strip in the process of being transported from the first unwinding device 200 to the glue frame forming mechanism 300, and ensure that the first unwinding device 200 can continuously unwind the first pole piece material strip during the glue coating process, thereby avoiding the first pole piece material strip from becoming loose or even pulled and torn due to the inconsistent conveying speed of the first pole piece material strip in the unwinding process and the glue coating process. Similarly, the pole piece buffer device 610 located between the drying mechanism 400 and the first cutting mechanism 510 can cache the material strip to balance the speed difference between the curing process and the cutting process, and ensure that the gluing and curing rhythm does not interfere with the cutting rhythm.

[0091] See also Figure 6 In some embodiments, the solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes a defect detection mechanism 520, which is used to implement step S53 of the first aspect embodiment described above, that is, to perform defect detection processing on the first pole piece 110 with the rubber frame 130, and to remove the NG first pole piece 110.

[0092] The defect detection mechanism 520 can adopt the existing electrode defect detection equipment, and can detect the surface defects of the electrode, such as side burrs, powder loss, etc. The defect detection mechanism 520 may include a camera module, a first manipulator and an NG material box; the first manipulator and the NG material box may be arranged next to the camera module. Moreover, the first manipulator can transfer the NG electrode from the defect detection station to the NG material box. It can be understood that the first manipulator may include a vacuum adsorption plate and a robot arm. When the current electrode is identified as NG during the defect detection work, the robot arm will drive the vacuum suction cup to move, and adsorb the NG electrode on the defect detection station and move it to the NG material box to avoid affecting the quality of the solid-state battery cell. A defect detection mechanism 520 is provided at each defect detection station, and the camera module may be an existing CCD (Charge coupled Device) camera, which can capture the image of the electrode to detect whether the electrode has defects.

[0093] See also Figure 8 and Fig. 9 In some embodiments, the solid-state battery cell manufacturing device based on single-sided glue frame molding further includes a correction mechanism 620, which is used to implement step S52 of the first aspect of the embodiment, that is, to correct the first pole piece 110; the correction mechanism 620 can prevent the first pole piece material strip from being offset during the conveying process and affecting the gluing effect. The correction mechanism 620 can adopt an existing correction mechanism 620 to correct the position of the first pole piece 110 before gluing.

[0094] Furthermore, in order to ensure that the tension of the first pole piece strip during transportation and the tension of the protective film strip during transportation meet the requirements, the solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes a tension swing arm device 630.

[0095] Among them, a tension swing rod device 630 is provided near the unwinding end of the first unwinding mechanism, a tension swing rod device 630 is provided near the unwinding end of the second unwinding mechanism, a tension swing rod device 630 is provided near the rewinding end of the protective film rewinding device 720, and a tension swing rod device 630 is provided near the unwinding end of the protective film unwinding device 710. It can be understood that the tension swing rod device 630 can adopt an existing tension swing rod mechanism, which can adjust the tension of the first pole piece material strip or the protective film material strip so that their tension meets the requirements.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0097] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A solid-state battery cell manufacturing method based on single-sided rubber frame molding, characterized in that: The steps include: Manufacturing a rubber frame (130) on one surface of a first pole piece (110) located at a molding station; The second pole piece (140) and the first pole piece (110) with the rubber frame (130) are alternately conveyed to the lamination station in sequence, and the first pole piece (110) and the second pole piece (140) are alternately stacked in sequence, so that the second pole piece (140) is embedded in the rubber frame (130) of the first pole piece (110); wherein the electrodes of the first pole piece (110) and the second pole piece (140) are opposite, and the thickness of the rubber frame (130) is greater than or equal to the thickness of the second pole piece (140).

2. The method for manufacturing a solid-state battery cell based on single-sided rubber frame molding according to claim 1, characterized in that: The method further comprises the steps of: A pole tab adhesive tape (160) is manufactured at a pole tab (150) of one of the first pole piece (110) and the second pole piece (140); wherein the adhesive frame (130) is disconnected at the pole tab (150).

3. The method for manufacturing a solid-state battery cell based on single-sided rubber frame molding according to claim 2, characterized in that: The manufacturing of the tab tape (160) at the tab (150) of one of the first pole piece (110) and the second pole piece (140) comprises the following steps: Sending the first pole piece (110) to a pasting station, and manufacturing a pole ear tape (160) at the pole ear (150) of the first pole piece (110); The first pole piece (110) with the pole tab tape (160) is transported to a forming station.

4. The method for manufacturing a solid-state battery cell based on single-sided rubber frame molding according to claim 2, characterized in that: The manufacturing of the tab tape (160) at the tab (150) of one of the first pole piece (110) and the second pole piece (140) comprises the following steps: The second pole piece (140) is sent to a pasting station, and a pole ear tape (160) is manufactured at the pole ear (150) of the second pole piece (140).

5. The method for manufacturing a solid-state battery cell based on single-sided rubber frame molding according to claim 1, characterized in that: The method of alternately conveying the second pole piece (140) and the first pole piece (110) with the plastic frame (130) to the lamination station in sequence, and alternately laminating the first pole piece (110) and the second pole piece (140) in sequence, so that the second pole piece (140) is embedded in the plastic frame (130) of the first pole piece (110), comprises the following steps: The second pole piece (140) and the first pole piece (110) with the rubber frame (130) are alternately transported to the lamination station in sequence, and the first pole piece (110), the solid electrolyte layer (120) and the second pole piece (140) are alternately stacked in sequence, so that the second pole piece (140) is embedded in the rubber frame (130) of the first pole piece (110), and the solid electrolyte layer (120) is embedded in the inner periphery of the rubber frame (130).

6. The method for manufacturing a solid-state battery cell based on single-sided rubber frame molding according to claim 1, characterized in that: Before the second pole piece (140) and the first pole piece (110) with the rubber frame (130) are alternately transported to the lamination station in sequence and the first pole piece (110) and the second pole piece (140) are alternately stacked in sequence, the following steps are included: conveying the first pole piece (110) to a first cutting station, and cutting the first pole piece (110); The second pole piece (140) is transported to a second cutting station, and the second pole piece (140) is cut.

7. The method for manufacturing a solid-state battery cell based on single-sided rubber frame molding according to claim 1, characterized in that: The method further comprises the steps of: After a glue frame (130) is manufactured on one surface of the first pole piece (110), the first pole piece (110) is dried; and / or, Before manufacturing a rubber frame (130) on one surface of the first pole piece (110), performing a deviation correction process on the first pole piece (110); and / or, After a rubber frame (130) is manufactured on one surface of the first pole piece (110), a defect detection process is performed on the first pole piece (110); The NG first pole piece (110) is sent to the NG station.

8. A solid-state battery cell manufacturing device based on single-sided rubber frame molding, characterized in that: For implementing the solid-state battery cell manufacturing method based on single-sided rubber frame molding as claimed in claim 1, the solid-state battery cell manufacturing device based on single-sided rubber frame molding comprises: A rubber frame molding mechanism (300) is used to manufacture a rubber frame (130) on the surface of the first pole piece (110), wherein the thickness of the rubber frame (130) is greater than the thickness of the second pole piece (140); the rubber frame molding mechanism (300) is arranged above the molding station; A lamination mechanism is used for alternately laminating the second pole piece (140) and the first pole piece (110) with the rubber frame (130) in sequence, so that the second pole piece (140) is embedded in the rubber frame (130) of the first pole piece (110); the lamination mechanism is arranged at the lamination station.

9. The solid-state battery cell manufacturing device based on single-sided rubber frame molding according to claim 8, characterized in that: The solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes: A tab adhesive pasting mechanism is used to manufacture a tab adhesive tape (160) at the tab (150) of a first pole piece (110) or a second pole piece (140), wherein the tab adhesive pasting mechanism is arranged above the pasting station.

10. The solid-state battery cell manufacturing device based on single-sided rubber frame molding according to claim 8, characterized in that: The solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes: A first cutting mechanism (510) is used to cut the first pole piece (110); the first cutting mechanism (510) is provided with a first cutting station; The second cutting mechanism is used for cutting the second pole piece (140); the second cutting mechanism is provided with a second cutting station.

11. The solid-state battery cell manufacturing device based on single-sided rubber frame molding according to claim 8, characterized in that: The solid-state battery cell manufacturing device based on single-sided rubber frame molding also includes: A drying mechanism (400) for drying the first pole piece (110) with the glue frame (130); and / or, A defect detection mechanism (520) is used to perform defect detection on the first pole piece (110) with the glue frame (130), and to remove NG pole pieces; and / or, A deviation correction mechanism (620), wherein the deviation correction mechanism (620) is used to perform deviation correction processing on the first pole piece (110).

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