Solid-state battery pole piece forming device based on etching and solid-state battery manufacturing equipment

Abstract

The utility model discloses an etching-based solid-state battery pole piece forming device, and discloses solid-state battery manufacturing equipment with the etching-based solid-state battery pole piece forming device, and the etching-based solid-state battery pole piece forming device comprises a pole piece unwinding mechanism, an etching mechanism and an embedding mechanism, the pole piece unwinding mechanism is used for supporting the unwinding of a roll-shaped first pole piece; the etching mechanism is used for etching the electrode layer of the first pole piece so as to enable the electrode layer of the first pole piece to form a groove which does not penetrate through the surface of the pole piece foil; and the embedding mechanism is used for embedding the PI film into the groove of the first pole piece. The solid-state battery pole piece forming device based on etching disclosed by the utility model can be used for manufacturing a pole piece of which the material is not easy to span to an electrolyte layer after lithium precipitation, so that the short-circuit phenomenon of a solid-state battery caused by lithium precipitation reaction is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of solid state battery manufacturing, especially based on etching's solid state battery pole piece forming device and solid state battery manufacturing equipment. BACKGROUND

[0002] Solid state battery is a new battery technology using solid state electrolyte, and the solid state battery is a battery in which a separator and a liquid electrolyte used in a conventional lithium ion battery are replaced by a solid state electrolyte, so that a graphite or silicon anode in the conventional lithium ion battery can be replaced by a lithium metal anode, and the lithium metal anode has a higher energy density than the conventional anode, allowing the battery to store more energy in the same volume.

[0003] However, the production process of the existing solid state battery is not mature, and the pole piece is prone to lithium precipitation, and the electrode material is easily transferred to the adjacent another pole piece across the solid state electrolyte layer, resulting in a short circuit phenomenon. SUMMARY

[0004] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a solid state battery pole piece forming device based on etching, which can manufacture a pole piece in which the material after lithium precipitation is not easy to cross the electrolyte layer, and avoid the short circuit phenomenon of the solid state battery caused by the lithium precipitation reaction.

[0005] The utility model also provides a solid state battery manufacturing equipment with the above-mentioned solid state battery pole piece forming device based on etching.

[0006] The solid state battery pole piece forming device based on etching according to the first aspect of the utility model comprises:

[0007] The pole piece unwinding mechanism is used to support the unwinding of the roll-shaped first pole piece.

[0008] The etching mechanism etches the electrode layer of the first pole piece to form a groove in the electrode layer of the first pole piece that does not penetrate the surface of the pole piece foil.

[0009] The embedding mechanism is used to embed the PI film in the groove of the first pole piece.

[0010] The solid state battery pole piece forming device based on etching according to the utility model has at least the following beneficial effects:

[0011] 1. The utility model discloses a pole piece unwinding mechanism, which is used to support the unwinding of the roll-shaped first pole piece, so that the roll-shaped first pole piece can be unfolded and conveyed, and then the PI film can be embedded in the groove of the first pole piece.

[0012] 2. The utility model discloses a setting etching mechanism and inlaying mechanism, and the electrode layer of first pole piece is etched by etching mechanism to make the electrode layer of first pole piece form the recess not to the surface of pole piece foil, then, the PI film is inlaid in the recess of first pole piece by inlaying mechanism, thereby, the electrode layer of first pole piece manufactured by the equipment is inlaid with PI film, and further, the material of pole piece is not easy to cross PI film to electrolyte layer after lithium extraction, avoid the solid-state battery short circuit phenomenon caused by lithium extraction reaction.

[0013] According to some embodiments of the utility model, the etching mechanism etches the edge of the electrode layer of the first pole piece to form the recess in the edge of the first pole piece.

[0014] Beneficially, the utility model discloses that the edge of the electrode layer of the first pole piece is etched by the etching mechanism, and the recess is formed in the edge of the first pole piece, so that the PI film is only formed in the edge position of the first pole piece, and the electrode material is not lost in large quantities due to the setting of the PI film, which affects the electrochemical performance of the pole piece.

[0015] According to some embodiments of the utility model, the etching mechanism includes a laser etching body and a laser etching platform, the laser etching platform is used to support the first pole piece, and the laser etching body outputs a laser beam to the first pole piece on the laser etching platform to etch the first pole piece.

[0016] Beneficially, the utility model discloses that the laser etching body outputs a light beam to the first pole piece to etch the first pole piece, and the laser etching is used to make the etching precision high, the efficiency high, and the flexibility high, and the laser etching platform is used to support the first pole piece, so that the first pole piece is more stable when the laser etching body etches the first pole piece, and the etching precision is further improved.

[0017] According to some embodiments of the utility model, the inlaying mechanism is a multi-axis mechanical arm, the multi-axis mechanical arm has a suction execution end, and the multi-axis mechanical arm is used to inlay the PI film in the recess of the first pole piece.

[0018] Beneficially, the utility model discloses that the inlaying mechanism is a multi-axis mechanical arm, the multi-axis mechanical arm has a suction execution end, and the multi-axis mechanical arm is used to inlay the PI film in the recess of the first pole piece, and it can be understood that the suction execution end can suck and release the PI film, the multi-axis mechanical arm swings to drive the PI film to move to the recess of the first pole piece after the suction execution end sucks the PI film, then the suction execution end releases the PI film, so that the PI film is overlaid in the recess, thereby, the transfer installation of the PI film is more flexible.

[0019] According to some embodiments of the utility model, the embedding mechanism comprises a PI film unwinding assembly and a laminating assembly, the PI film unwinding assembly is used for supporting the unwinding of the roll-shaped PI film, and the laminating assembly is used for laminating the PI film in the groove of the first pole piece.

[0020] Beneficially, the utility model discloses a PI film unwinding assembly and a laminating assembly are arranged on the embedding mechanism, the PI film unwinding assembly is used for supporting the unwinding of the roll-shaped PI film, and the laminating assembly is used for laminating the PI film in the groove of the first pole piece, so that the PI film can be laminated into the groove during the conveying process of the first pole piece, and the lamination efficiency is high.

[0021] According to some embodiments of the utility model, the embedding mechanism further comprises a first tension swing rod, the first tension swing rod is arranged between the PI film unwinding assembly and the laminating assembly, and the first tension swing rod is used for tensioning the PI film.

[0022] Beneficially, the utility model discloses a first tension swing rod is arranged on the embedding mechanism, the first tension swing rod is arranged between the PI film unwinding assembly and the laminating assembly, and the first tension swing rod is used for tensioning the PI film, so that the PI film is tensioned during the conveying process, the PI film is prevented from being wrinkled during the conveying process, and the accuracy of the embedding position of the PI film on the groove of the first pole piece is improved.

[0023] According to some embodiments of the utility model, a piece cutting mechanism is further arranged behind the embedding mechanism, and the piece cutting mechanism is used for cutting the first pole piece embedded with the PI film into a sheet-shaped first pole piece.

[0024] Beneficially, the utility model discloses a piece cutting mechanism is further arranged behind the embedding mechanism, and the piece cutting mechanism is used for cutting the first pole piece embedded with the PI film into a sheet-shaped first pole piece, so that the sheet-shaped first pole piece can be alternately stacked with the electrolyte layer and the sheet-shaped second pole piece to form the battery cell.

[0025] According to some embodiments of the utility model, a winding mechanism is further arranged behind the embedding mechanism, and the winding mechanism is used for winding the first pole piece embedded with the PI film.

[0026] Beneficially, the utility model discloses a winding mechanism is further arranged behind the embedding mechanism, and the winding mechanism is used for winding the first pole piece embedded with the PI film, so that the first pole piece embedded with the PI film can be conveniently wound and circulated and then subjected to subsequent processes.

[0027] According to some embodiments of the utility model, the embedding mechanism is further provided with a surface defect detection mechanism and a defective product marking mechanism arranged in sequence along the conveying direction of the first pole piece, the surface defect detection mechanism is used for detecting the surface defects of the front and back surfaces of the first pole piece after embedding the PI film, and the defective product marking mechanism is used for marking the defective products detected by the surface defect detection mechanism.

[0028] Beneficially, the utility model discloses a surface defect detection mechanism and a defective product marking mechanism arranged in sequence along the conveying direction of the first pole piece are further arranged after the embedding mechanism, the surface defect detection mechanism is used for detecting the surface defects of the front and back surfaces of the first pole piece after embedding the PI film, and the defective product marking mechanism is used for marking the defective products detected by the surface defect detection mechanism, so that the surface of the first pole piece can be detected and the defective products can be marked after the manufacture of the first pole piece is completed, and then, the defective products can be conveniently removed subsequently.

[0029] The solid-state battery manufacturing equipment according to the second aspect of the utility model comprises the solid-state battery pole piece forming device based on etching described in the first aspect of the utility model.

[0030] The solid-state battery manufacturing equipment according to the utility model has at least the following beneficial effects:

[0031] 1. The utility model discloses a pole piece unwinding mechanism is arranged in the solid-state battery pole piece forming device based on etching of solid-state battery manufacturing equipment, and the pole piece unwinding mechanism is used for supporting the unwinding of the roll-shaped first pole piece, so that the roll-shaped first pole piece can be unfolded and conveyed, and then, the etching groove and the embedding PI film can be conveniently carried out on the first pole piece.

[0032] 2. The utility model discloses an etching mechanism and an embedding mechanism are arranged in the solid-state battery pole piece forming device based on etching of solid-state battery manufacturing equipment, the electrode layer of the first pole piece is etched by the etching mechanism to make the electrode layer of the first pole piece form the groove not penetrating to the surface of the pole piece foil, then, the PI film is embedded in the groove of the first pole piece by the embedding mechanism, so that the PI film is embedded on the electrode layer of the first pole piece manufactured by the equipment, and then, the material is not easy to cross the PI film to the electrolyte layer after the pole piece analyzes lithium, and the short circuit phenomenon of the solid-state battery caused by the lithium analysis reaction is avoided.

[0033] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0035] Figure 1 The structural schematic diagram of the solid-state battery pole piece forming device based on etching according to another embodiment of the present application is shown in the figure.

[0036] Figure 2 The structural schematic diagram of the solid-state battery pole piece forming device based on etching according to another embodiment of the present application is shown in the figure.

[0037] Figure 3 The structural schematic diagram of the solid-state battery pole piece forming device based on etching according to another embodiment of the present application is shown in the figure.

[0038] Figure 4 The structural schematic diagram of the solid-state battery pole piece forming device based on etching according to another embodiment of the present application is shown in the figure.

[0039] Fig. 5(a) and Fig. 5(b) are structural schematic diagrams of the solid-state battery cell when the first pole piece is the positive pole piece and the second pole piece is the negative pole piece according to the embodiments of the present application; wherein, Fig. 5(a) is a structural schematic diagram of the solid-state battery cell in the state of the positive pole piece embedding PI film on one side; Fig. 5(b) is a structural schematic diagram of the solid-state battery cell in the state of the positive pole piece embedding PI film on both sides.

[0040] Fig. 6(a) and Fig. 6(b) are structural schematic diagrams of the solid-state battery cell when the first pole piece is the negative pole piece and the second pole piece is the positive pole piece according to the embodiments of the present application; wherein, Fig. 6(a) is a structural schematic diagram of the solid-state battery cell in the state of the negative pole piece embedding PI film on one side; Fig. 6(b) is a structural schematic diagram of the solid-state battery cell in the state of the negative pole piece embedding PI film on both sides.

[0041] Reference signs: 100-first pole piece, 110-electrode layer, 120-pole piece foil, 130-groove, 140-PI film, 150-electrolyte layer, 160-second pole piece, 170-pole piece unwinding mechanism, 180-etching mechanism, 190-embedding mechanism, 200-laser etching body, 210-laser etching platform, 220-PI film unwinding assembly, 230-laminating assembly, 240-first tension swing rod, 250-cutting mechanism, 260-rewinding mechanism, 270-surface defect detection mechanism, 280-defective product marking mechanism, 290-second tension swing rod, 300-positioning sensor, 310-correction system, 320-correction detection mechanism, 330-tension detector, 340-third tension swing rod, 350-positive pole piece, 360-positive electrode layer, 370-positive foil layer, 380-negative pole piece, 390-negative electrode layer, 400-negative foil layer. DETAILED DESCRIPTION

[0042] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0043] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0044] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the first and the second are described, this is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0045] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation, connection and connection" should be broad understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0046] The solid-state battery manufacturing equipment based on etching according to the embodiments of the utility model is described below with reference to the drawings.

[0047] Refer to Figures 1 to 3 The utility model aims at providing the embodiment of solid-state battery manufacturing equipment based on etching.

[0048] Refer to Figure 1 In the embodiment, the solid-state battery manufacturing equipment mainly includes the solid-state battery pole piece forming device based on etching and the laminating device, wherein the solid-state battery pole piece forming device based on etching mainly includes the pole piece unwinding mechanism 170, the etching mechanism 180 and the embedding mechanism 190.

[0049] For the pole piece unwinding mechanism 170, the pole piece unwinding mechanism 170 is used to support the unwinding of the roll-shaped first pole piece 100.

[0050] The embodiment is provided with the pole piece unwinding mechanism 170, which is used to support the unwinding of the roll-shaped first pole piece 100, so that the roll-shaped first pole piece 100 can be unfolded and conveyed, and then the etching groove 130 and the embedding PI film 140 on the first pole piece 100 are facilitated.

[0051] For the etching mechanism 180, the etching mechanism 180 etches the electrode layer 110 of the first pole piece 100 to form the groove 130 not penetrating to the surface of the pole piece foil 120 of the electrode layer 110 of the first pole piece 100.

[0052] For the embedding mechanism 190, the embedding mechanism 190 is used to embed the PI film 140 in the groove 130 of the first pole piece 100.

[0053] The embodiment is characterized in that the etching mechanism 180 is arranged to etch the electrode layer 110 of the first pole piece 100 to form the groove 130 in the electrode layer 110 of the first pole piece 100, and then the embedding mechanism 190 is arranged to embed the PI film 140 in the groove 130 of the first pole piece 100, so that the PI film 140 is embedded on the electrode layer 110 of the first pole piece 100, and the material of the pole piece is less likely to cross the PI film 140 to the electrolyte layer 150 after lithium is separated, thereby avoiding the short circuit phenomenon of the solid-state battery caused by the lithium separation reaction.

[0054] In some specific embodiments, the etching mechanism 180 is arranged to etch the edge of the electrode layer 110 of the first pole piece 100 to form the groove 130 in the edge of the first pole piece 100, so that the PI film 140 is only formed in the edge of the first pole piece 100, and the setting of the PI film 140 does not affect the electrochemical performance of the pole piece due to the large loss of the electrode material.

[0055] In some specific embodiments, a second tension swing lever 290 is arranged between the pole piece unwinding mechanism 170 and the etching mechanism 180, and the second tension swing lever 290 is used to tension the first pole piece 100, so that the first pole piece 100 is tensioned during the conveying process, thereby avoiding the first pole piece 100 from being wrinkled during the conveying process, and further facilitating to improve the accuracy of the etching position of the first pole piece 100 by the etching mechanism 180.

[0056] In some specific embodiments, a positioning sensor 300, a deviation correction system 310 and a deviation correction detection mechanism 320 are sequentially arranged between the second tension swing lever 290 and the etching mechanism 180 along the conveying path of the first pole piece 100, the first positioning sensor 300 is used to detect the position of the first pole piece 100, the deviation correction system 310 is used to correct the position of the first pole piece 100, and the deviation correction detection mechanism 320 is used to detect the position of the first pole piece 100 after the position is corrected, so that the position of the first pole piece 100 is detected and corrected during the conveying process of the first pole piece 100, and the etching position of the etching mechanism 180 on the first pole piece 100 is more accurate.

[0057] Further, the deviation correction detection mechanism 320 is provided with two deviation correction detection mechanisms 320, and a tension detector 330 and a positioning sensor 300 are further arranged between the two deviation correction detection mechanisms 320, the tension detector 330 is used to detect the tension of the first pole piece 100, so as to facilitate monitoring the tension of the first pole piece 100, and the positioning sensor 300 is arranged between the two deviation correction detection mechanisms 320, thereby improving the accuracy of the position detection of the first pole piece 100.

[0058] In some specific embodiments, the etching mechanism 180 comprises a laser etching body 200 and a laser etching platform 210, the laser etching platform 210 is used to support the first pole piece 100, and the laser etching body 200 outputs a laser beam to the first pole piece 100 on the laser etching platform 210 to etch the first pole piece 100.

[0059] It can be understood that by setting the laser etching body 200 to output a light beam to the first pole piece 100 to etch the first pole piece 100, laser etching is used to make the etching precision, efficiency and flexibility high. At the same time, by setting the laser etching platform 210 to support the first pole piece 100, the first pole piece 100 is more stable when the laser etching body 200 etches the first pole piece 100, thereby further improving the etching precision.

[0060] In some specific embodiments, a third tension swing lever 340 is arranged between the etching mechanism 180 and the embedding mechanism 190, and the third tension swing lever 340 is used to tension the first pole piece 100, so that the first pole piece 100 is tensioned during conveying, thereby avoiding the first pole piece 100 from being wrinkled during conveying, and further improving the accuracy of the embedding mechanism 190 in embedding the PI film 140 on the first pole piece 100.

[0061] In some specific embodiments, the embedding mechanism 190 is a multi-axis mechanical arm, and the multi-axis mechanical arm has a suction execution end, and the multi-axis mechanical arm is used to embed the PI film 140 in the groove 130 of the first pole piece 100.

[0062] It can be understood that the suction execution end can suck and release the PI film 140. After the suction execution end sucks the PI film 140, the multi-axis mechanical arm swings to drive the PI film 140 to move to the groove 130 of the first pole piece 100, and then the suction execution end releases the PI film 140, so that the PI film 140 is overlaid in the groove 130, thereby making the transfer and installation of the PI film 140 more flexible.

[0063] Referring to Figure 2 In some other embodiments, the embedding mechanism 190 can comprise a PI film unwinding assembly 220 and an overlaying assembly 230, the PI film unwinding assembly 220 is used to support the unwinding of the roll-shaped PI film 140, and the overlaying assembly 230 is used to overlay the PI film 140 in the groove 130 of the first pole piece 100, so that the roll PI film 140 can be overlaid in the groove 130 during the conveying of the first pole piece 100, and the overlaying efficiency is high.

[0064] Further, the embedding mechanism 190 further comprises a first tension swing lever 240, which is arranged between the PI film unwinding assembly 220 and the laminating assembly 230, and is used to tension the PI film 140, so that the PI film 140 is tensioned during conveying, and wrinkles of the PI film 140 during conveying are avoided, thereby facilitating to improve the accuracy of the embedding position of the PI film 140 on the groove 130 of the first pole piece 100.

[0065] With reference to Figure 3 In some specific embodiments, the embedding mechanism 190 is further provided with a cutting mechanism 250, which is used to cut the first pole piece 100 embedded with the PI film 140 into a sheet-shaped first pole piece 100, so that the sheet-shaped first pole piece 100 can be alternately stacked with the electrolyte layer 150 and the sheet-shaped second pole piece 160 to form a battery cell.

[0066] With reference to Figure 1 And Figure 2 In other embodiments, the embedding mechanism 190 can be further provided with a winding mechanism 260, which is used to wind the first pole piece 100 embedded with the PI film 140, so as to facilitate the winding turnover of the first pole piece 100 embedded with the PI film 140 before subsequent processes.

[0067] In some specific embodiments, the embedding mechanism 190 is further provided with a surface defect detection mechanism 270 and a defective product marking mechanism 280 arranged in sequence along the conveying direction of the first pole piece 100, the surface defect detection mechanism 270 is used to detect the surface defects of the front and back surfaces of the first pole piece 100 embedded with the PI film 140, and the defective product marking mechanism 280 is used to mark the defective products detected by the surface defect detection mechanism 270, so as to facilitate the detection and marking of the defective products on the surface of the first pole piece 100 after the manufacturing of the first pole piece 100 is completed, thereby facilitating the subsequent rejection of defective products.

[0068] Specifically, the surface defect detection mechanism 270 can be provided with two visual detectors for detecting the surface defects of the front and back surfaces of the first pole piece 100.

[0069] In some specific embodiments, the cutting mechanism 250 can be arranged between the pole piece unwinding mechanism 170 and the etching mechanism 180, and the first pole piece 100 is cut before etching and embedding of the PI film 140, and the embedding mechanism 190 is provided as a multi-axis mechanical arm.

[0070] In some specific embodiments, the etching-based solid-state battery pole piece forming device further comprises a plurality of support rollers arranged along the conveying direction of the first pole piece 100, and the plurality of support rollers are used to support the conveying of the first pole piece 100.

[0071] The pole piece formed by the etching-based solid-state battery pole piece forming device according to the embodiment is embedded with the PI film 140 on the electrode layer 110 of the pole piece, and the material is not easy to cross the PI film 140 to the electrolyte layer 150 after lithium precipitation, thereby avoiding the short circuit phenomenon of the solid-state battery caused by the lithium precipitation reaction, and the PI film 140 is only formed at the edge position of the pole piece, and the setting of the PI film 140 will not cause a large amount of loss of the electrode material, thereby affecting the electrochemical performance of the pole piece.

[0072] For the laminating device, the laminating device is used to interleave and stack the first pole piece 100, the electrolyte layer 150 and the second pole piece 160 to form the battery cell.

[0073] Referring to Figure 4 According to the structure of the solid-state battery cell provided by the solid-state battery manufacturing equipment according to the embodiment of the utility model, the first pole piece 100, the electrolyte layer 150 and the second pole piece 160 are sequentially stacked, and the PI film 140 is embedded on the surface of the electrode layer 110 on the side of the first pole piece 100 close to the electrolyte layer 150.

[0074] Specifically, the solid-state battery cell manufactured by the solid-state battery manufacturing equipment according to the embodiment of the utility model can at least form the following structures:

[0075] When the first pole piece 100 is used as the positive pole piece 350 and the second pole piece 160 is used as the negative pole piece 380, referring to FIG. 5(a), in some embodiments, the groove 130 is formed on the surface of the positive electrode layer 360 of one side of the positive pole piece 350, the PI film 140 is embedded in the groove 130, and the positive pole piece 350 has one side with the groove 130 and is attached to the electrolyte layer 150, and the other side of the electrolyte layer 150 is attached to the negative pole piece 380.

[0076] Referring to FIG. 5(b), in other embodiments, the positive pole piece 350 comprises a positive pole foil layer 370 and two positive electrode layers 360 respectively arranged on the two sides of the positive pole foil layer 370, the two positive electrode layers 360 are both formed with the groove 130, the PI film 140 is embedded in the groove 130, and the positive pole piece 350 has two sides with the groove 130 and is attached to the electrolyte layer 150, and the other side of the two electrolyte layers 150 is attached to the negative pole piece 380.

[0077] When the first tab 100 is used as a negative electrode tab 380 and the second tab 160 is used as a positive electrode tab 350, referring to FIG. 6(a), in some embodiments, the groove 130 is formed on the surface of the negative electrode layer 390 of one side of the negative electrode tab 380, the PI film 140 is embedded in the groove 130, and the negative electrode tab 380 has one side with the groove 130 adhered to the electrolyte layer 150, and the other side of the electrolyte layer 150 adhered to the positive electrode tab 350.

[0078] Referring to FIG. 6(b), in other embodiments, the negative electrode tab 380 includes a negative electrode foil layer 400 and two negative electrode layers 390 respectively disposed on both sides of the negative electrode foil layer 400, both of the negative electrode layers 390 are formed with the groove 130, the PI film 140 is embedded in the groove 130, and the negative electrode tab 380 has both sides with the groove 130 adhered to the electrolyte layer 150, and the other sides of both of the electrolyte layers 150 adhered to the positive electrode tab 350.

[0079] In the description of the present specification, the description of 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 connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples as appropriate.

[0080] The terms "first, second, third, fourth" and the like (if any) in the specification of the present application and claims and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged as appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0081] It should also be noted that in the description of the present specification, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or sequence between the entities or operations.

[0082] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus including a series of steps or units does not necessarily have to be limited to only those steps or units clearly listed, but can also include other steps or units not clearly listed or inherent to the process, method, product, or apparatus.

[0083] Also, the term "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0084] The embodiments of the utility model are explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An etch-based solid-state battery electrode sheet forming apparatus, characterized by, The application relates to a solid-state battery pole piece forming device based on etching. The application relates to a solid-state battery pole piece forming device based on etching. The etching mechanism (180) is used for etching the edge of the electrode layer (110) of the first pole piece (100) so that the groove (130) is formed on the edge of the first pole piece (100). The etching mechanism (180) comprises a laser etching body (200) and a laser etching platform (210), the laser etching platform (210) is used for supporting the first pole piece (100), and the laser etching body (200) outputs a laser beam to the first pole piece (100) on the laser etching platform (210) to etch the first pole piece (100).

2. The etch-based solid state battery pole piece forming apparatus of claim 1, wherein, The embedding mechanism (190) is a multi-axis mechanical arm, the multi-axis mechanical arm has a suction execution end, and the multi-axis mechanical arm is used for embedding the PI film (140) into the groove (130) of the first pole piece (100).

3. The etch-based solid state battery pole piece forming apparatus of claim 1, wherein, The embedding mechanism (190) comprises a PI film unwinding assembly (220) and a laminating assembly (230), the PI film unwinding assembly (220) is used for supporting the unwinding of the roll-shaped PI film (140), and the laminating assembly (230) is used for laminating the PI film (140) into the groove (130) of the first pole piece (100).

4. The etch-based solid state battery pole piece forming apparatus of claim 1, wherein, The embedding mechanism (190) further comprises a first tension swing rod (240), the first tension swing rod (240) is arranged between the PI film unwinding assembly (220) and the laminating assembly (230), and the first tension swing rod (240) is used for tensioning the PI film (140).

5. The etch-based solid state battery pole piece forming apparatus of claim 1, wherein, The embedding mechanism (190) is further provided with a cutting mechanism (250) behind the embedding mechanism (190), the cutting mechanism (250) is used for cutting the first pole piece (100) embedded with the PI film (140) into a sheet-shaped first pole piece (100).

6. The etch-based solid state battery pole piece forming apparatus of claim 5, wherein, The embedding mechanism (190) is further provided with a winding mechanism (260) behind the embedding mechanism (190), the winding mechanism (260) is used for winding the first pole piece (100) embedded with the PI film (140).

7. The etch-based solid state battery pole piece forming apparatus of claim 1, wherein, The embedding mechanism (190) is further provided with a surface defect detection mechanism (270) and a defective product marking mechanism (280) arranged in sequence along the conveying direction of the first pole piece (100) behind the embedding mechanism (190), the surface defect detection mechanism (270) is used for detecting the surface defects of the front and back surfaces of the first pole piece (100) embedded with the PI film (140), and the defective product marking mechanism (280) is used for marking the defective products detected by the surface defect detection mechanism (270).

8. The etch-based solid state battery pole piece forming apparatus of claim 1, wherein, The application further discloses a solid-state battery pole piece forming device based on etching.

9. The etch-based solid state battery pole piece forming apparatus of claim 1, wherein, ​ 10. A solid-state battery manufacturing apparatus, characterized by, ​

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