Solid-state battery stack device

Abstract

The application discloses a solid-state battery lamination device, which comprises a lamination table, a stacking area for stacking pole piece units to form a pole piece group, a feeding mechanism for providing insulating and adherable first and second separators, and a transfer mechanism for transferring the first separator to the stacking area before the pole piece units are stacked, and transferring the second separator to a side of the pole piece group away from the first separator after a preset number of pole piece units are stacked on the first separator to form the pole piece group. The transfer mechanism comprises a base and a multi-degree-of-freedom mechanical arm connected to the base, the execution end of the multi-degree-of-freedom mechanical arm is connected with a negative pressure suction accessory, the side of the negative pressure suction accessory away from the multi-degree-of-freedom mechanical arm is provided with a first position recognition piece, and the first position recognition piece is used for recognizing the positions of the first and second separators of the feeding mechanism to determine the suction position of the negative pressure suction accessory.

Description

Technical Field

[0001] This disclosure generally relates to the field of battery technology, and more particularly to a solid-state battery stacking device. Background Technology

[0002] In traditional battery production, after the stacking is completed, a bonding machine is used to apply several layers of high-temperature tape around the stacked cores. Due to the presence of a separator, the tape adheres very firmly to the separator, which can fix the stacked cores and prevent the positive and negative electrode sheets from sliding relative to each other during transportation, thus affecting the alignment accuracy.

[0003] Solid-state electrolytes possess excellent ionic conductivity and mechanical strength, effectively isolating the positive and negative electrodes. Therefore, solid-state batteries do not require a traditional separator. However, without a separator, high-temperature tape applied directly to the negative electrode may not adhere properly and is prone to detachment. This can easily lead to misalignment of the stacked cores and damage to the edges of the negative electrode. Utility Model Content

[0004] This invention provides a solid-state battery stacking device that can improve the reliability of bonding components and make it less likely for the positive and negative electrodes in the electrode assembly to become misaligned.

[0005] This utility model provides a solid-state battery stacking device, comprising:

[0006] A stacking stage, including a stacking area for stacking electrode units to form an electrode group;

[0007] A feeding mechanism for providing an insulating, adhesive first and second spacer;

[0008] A transfer mechanism is used to transfer the first spacer to the stacking area before the electrode units are stacked, and to transfer the second spacer to the side of the electrode group away from the first spacer after a predetermined number of electrode units are stacked on the first spacer to form the electrode group.

[0009] The transfer mechanism includes a base and a multi-degree-of-freedom robotic arm connected to the base. The execution end of the multi-degree-of-freedom robotic arm is connected to a negative pressure adsorption component. A first position identification component is provided on the side of the negative pressure adsorption component away from the multi-degree-of-freedom robotic arm. The first position identification component is used to identify the positions of the first partition and the second partition of the feeding mechanism to determine the adsorption position of the negative pressure adsorption component.

[0010] As an alternative implementation, a controller is also included, which is electrically connected to the first position identification element and the multi-degree-of-freedom robotic arm, respectively, and is used to adjust the adsorption position of the negative pressure adsorption element according to the position signal identified by the first position identification element.

[0011] As an alternative implementation, a second position identifier is also included, which is disposed adjacent to the stacking area. The controller is electrically connected to the second position identifier and is used to adjust the release position of the negative pressure adsorption component based on the positions of the first and second spacers on the negative pressure adsorption component identified by the second position identifier.

[0012] As an alternative implementation, a support platform is also included, which is located on one side of the stacking table, and the feeding mechanism and the transfer mechanism are located on the support platform.

[0013] As an alternative implementation, a stacking machine is also included, wherein the stacking stage is disposed on the stacking machine, the support platform is disposed on the side of the stacking machine adjacent to the stacking stage, and the upper surface of the support platform is on the same plane as the upper surface of the stacking machine.

[0014] As one possible implementation, the second position identifier is disposed on the stacking machine and located between the stacking table and the support platform.

[0015] As an implementation method, the feeding mechanism is a feeding box, in which the first partition and the second partition are stacked alternately.

[0016] As an alternative implementation, the first spacer and the second spacer are either polyethylene sheets or polyethylene terephthalate sheets.

[0017] As one possible implementation, the thickness of the first spacer is 0.1mm-0.3mm;

[0018] The thickness of the second spacer is 0.1mm-0.3mm.

[0019] As an implementation, the length of the first spacer is greater than the length of the electrode group, and the difference a is 0.5mm-1mm; the width of the first spacer is greater than the width of the electrode group, and the difference b is 0.5mm-1mm.

[0020] The length of the second spacer is greater than the length of the electrode group, and the difference a is 0.5mm-1mm. The width of the second spacer is greater than the width of the electrode group, and the difference b is 0.5mm-1mm.

[0021] The above scheme uses a transfer mechanism to stack the first and second spacers on opposite sides of the electrode assembly. This improves the reliability of the adhesive bonding when the first and second spacers are connected by an adhesive, which helps to fix the electrode assembly located between the first and second spacers and makes it less likely for the positive and negative electrode plates in the electrode assembly to become misaligned. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a top view of the solid-state battery stacking device according to an embodiment of this application;

[0024] Figure 2 This is a side view of the support platform of the solid-state battery stacking device according to an embodiment of this application;

[0025] Figure 3 for Figure 3 Enlarged view of point A;

[0026] Figure 4 This is a schematic diagram of the negative pressure adsorption component of the solid-state battery stacking device according to an embodiment of this application, facing away from the side of the multi-degree-of-freedom robotic arm;

[0027] Figure 5 The image shows a cell pack obtained using the solid-state battery stacking apparatus of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] Stacking device 100

[0030] First partition 10

[0031] Electrode group 20, negative electrode 21, positive electrode 22,

[0032] Second partition 30, adhesive component 40

[0033] Stacking machine 50, stacking table 51, second position identification component 52

[0034] Support platform 60, feeding mechanism 61, transfer mechanism 62, base 621, multi-degree-of-freedom robotic arm 622, negative pressure adsorption component 623, first position identification component 624. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0037] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” as used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0038] like Figure 1 As shown, the solid-state battery stacking device 100 provided in this embodiment of the present invention includes a stacking table 51, a feeding mechanism 61, and a transfer mechanism 62.

[0039] like Figure 1 As shown, the stacking stage 51 includes a stacking region for stacking electrode units to form an electrode group 20; for example, the electrode unit includes a positive electrode 22 and a negative electrode 21, and the positive electrode 22 and the negative electrode 21 are stacked alternately to form the electrode unit.

[0040] like Figure 2 and Figure 3 As shown, the feeding mechanism 61 is used to provide an insulating and adhesive first spacer 10 and a second spacer 30;

[0041] The feeding mechanism 61 may include a first feeding member for providing the first partition 10 and a second feeding member for providing the second partition 30. When the first partition 10 and the second partition 30 are the same, the first feeding member and the second feeding member are the same; when the first partition 10 and the second partition 30 are different, the first feeding member and the second feeding member can be the same. In this case, the first partition 10 and the second partition 30 can be stacked alternately in the first feeding member. The first feeding member and the second feeding member can also have different structures, respectively used to provide the first partition 10 and the second partition 30.

[0042] like Figure 5 As shown, the transfer mechanism 62 is used to transfer the first spacer 10 to the stacking area before the electrode units are stacked, and to transfer the second spacer 30 to the side of the electrode group 20 away from the first spacer 10 after a predetermined number of electrode units are stacked on the first spacer 10 to form the electrode group 20.

[0043] Before and after the electrode units are stacked in the stacking area, the transfer mechanism 62 transfers the first spacer 10 and the second spacer 30 to the stacking area, respectively, so that the first spacer 10 and the second spacer 30 can be located on opposite sides of the electrode group 20. This facilitates the subsequent connection of the first spacer 10 and the second spacer 30 by the adhesive 40, improves the reliability of the adhesive 40, and achieves reliable fixation of the electrode group 20, making it less likely for the positive electrode 22 and the negative electrode 21 in the electrode group 20 to become misaligned.

[0044] like Figure 2 and Figure 3 As shown, the transfer mechanism 62 includes a base 621 and a multi-degree-of-freedom robotic arm 622 connected to the base 621. The execution end of the multi-degree-of-freedom robotic arm 622 is connected to a negative pressure adsorption component 623.

[0045] The base 621 is used to provide support. The multi-degree-of-freedom robotic arm 622 can be fixedly connected to the base 621, for example, the multi-degree-of-freedom robotic arm 622 and the base 621 can be integrally formed or welded, etc.; the multi-degree-of-freedom robotic arm 622 and the base 621 can be movably connected, for example, the multi-degree-of-freedom robotic arm 622 and the base 621 can be rotatably connected or slidably connected, etc.

[0046] In some embodiments, such as Figure 1 and Figure 2 As shown, the multi-degree-of-freedom robotic arm 622 can be a multi-axis robotic arm. For example, a multi-axis robotic arm can include three-axis, four-axis, five-axis, six-axis, etc.

[0047] like Figure 2 and Figure 3 As shown, the execution end of the multi-degree-of-freedom robotic arm 622 is connected to a negative pressure adsorption component 623, that is, the end of the multi-degree-of-freedom robotic arm 622 away from the base 621 is connected to the negative pressure adsorption component 623.

[0048] Of course, this application is not limited to this. In other embodiments, the execution end of the multi-degree-of-freedom robotic arm 622 may also be connected to other structures such as grippers that can grasp the first partition 10 and the second partition 30 in order to transfer the first partition 10 and the second partition 30.

[0049] like Figure 3 and Figure 4 As shown, a first position identification element 624 is provided on the side of the negative pressure adsorption element 623 away from the multi-degree-of-freedom robotic arm 622. The first position identification element 624 is used to identify the position of the first partition 10 and the second partition 30 of the feeding mechanism 61 to determine the adsorption position of the negative pressure adsorption element 623.

[0050] A first position identification element 624 is provided on the side of the negative pressure adsorption element 623 away from the multi-degree-of-freedom robotic arm 622. In this way, the negative pressure adsorption element 623 can obtain the position information of the first partition 10 and the second partition 30 before adsorbing the first partition 10 and the second partition 30, so that the multi-degree-of-freedom robotic arm 622 can adjust its coordinates to adsorb the first partition 10 and the second partition 30 at a predetermined position.

[0051] It is understood that the first position identification element 624 can be located at any position on the side of the negative pressure adsorption element 623 away from the multi-degree-of-freedom robotic arm 622. For example, the first position identification element 624 can be located at the center, edge, or between the center and edge of the side of the negative pressure adsorption element 623 away from the multi-degree-of-freedom robotic arm 622. In the present application, the first position identification element 624 is located at the geometric center of the side of the negative pressure adsorption element 623 away from the multi-degree-of-freedom robotic arm 622.

[0052] The first position identification element 624 can be a CCD camera. Of course, this application is not limited to this. In other embodiments, the first position identification element 624 can also be other components that can identify position information.

[0053] The above scheme, such as Figure 5 As shown, the first spacer 10 and the second spacer 30 are stacked on opposite sides of the electrode assembly 20 by a transfer mechanism. In this way, when the first spacer 10 and the second spacer 30 are connected by the adhesive 40, the reliability of the adhesive 40 can be improved, which is beneficial to fixing the electrode assembly 20 located between the first spacer 10 and the second spacer 30, so that the positive electrode 22 and the negative electrode 21 in the electrode assembly 20 are less likely to be misaligned.

[0054] As an implementation method, the solid-state battery stacking device 100 also includes a controller, which is electrically connected to the first position identification element 624 and the multi-degree-of-freedom robotic arm 622 respectively, and is used to adjust the adsorption position of the negative pressure adsorption element 623 according to the position signal identified by the first position identification element 624.

[0055] By setting a controller that is electrically connected to the first position identification element 624 and the multi-degree-of-freedom robotic arm 622 respectively, the first position identification element 624 can transmit the identified position information of the first partition 10 and the second partition 30 to the controller. The controller can control the multi-degree-of-freedom robotic arm 622 to adjust its coordinates according to the position information of the first partition 10 and the second partition 30, so as to pick up the first partition 10 and the second partition 30 at a preset position.

[0056] Specifically, the controller can be electrically connected to the first position identification element 624 and the multi-degree-of-freedom robotic arm 622 via wires or via radio signals.

[0057] As a possible approach, such as Figure 1 As shown, the solid-state battery stacking device 100 also includes a second position identification element 52, which is disposed near the stacking area. The controller is electrically connected to the second position identification element 52 and is used to adjust the release position of the negative pressure adsorption element 623 according to the position of the first spacer 10 and the second spacer 30 on the negative pressure adsorption element 623 identified by the second position identification element 52.

[0058] By setting a second position identifier 52 in the adjacent stacking area and electrically connecting the second position identifier 52 to the controller, the second position identifier 52 can identify the position information of the first partition 10 and the second partition 30 on the negative pressure adsorption component 623 and send it to the controller. The controller can adjust the coordinates of the multi-degree-of-freedom robotic arm 622 according to the position information to release the first partition 10 and the second partition 30 at a predetermined position.

[0059] The second position identification element 52 can be located at any position near the stacking area. It should be noted that the second position identification element 52 should be located on the path of the multi-degree-of-freedom robotic arm 622 moving from the feeding mechanism 61 to the stacking area, so as to identify the position information of the first partition 10 and the second partition 30 adsorbed by the negative pressure adsorption element 623 on the multi-degree-of-freedom robotic arm.

[0060] In some embodiments, the second location identifier 52 may be a CCD camera.

[0061] As a possible approach, such as Figure 1 and Figure 2 As shown, the solid-state battery stacking device 100 also includes a support platform 60, which is located on one side of the stacking table 51. The feeding mechanism 61 and the transfer mechanism 62 are located on the support platform 60.

[0062] By providing a support platform 60 on one side of the stacking table 51, and having the feeding mechanism 61 and the transfer mechanism 62 located on the support platform 60, it is convenient for the transfer mechanism 62 to pick up the first partition 10 and the second partition 30 from the feeding mechanism 61, and then release the first partition 10 and the second partition 30 in the stacking area. At the same time, this reduces the number of support platforms 60, decreases the occupied area, and makes the overall structure more compact.

[0063] As an implementation method, the solid-state battery stacking device 100 also includes a stacking machine 50, a stacking table 51 disposed on the stacking machine 50, and a support platform 60 disposed on one side of the stacking machine 50, with the upper surface of the support platform and the upper surface of the stacking machine being on the same plane.

[0064] Specifically, the support platform 60 is connected to the stacking machine 50, so that the support platform 60 does not need to be equipped with a support structure, and the stacking machine 50 provides support; of course, the support platform can also be located on one side of the stacking machine and have independent support legs.

[0065] It is understood that the feeding mechanism 61 is located within the maximum range of movement of the transfer mechanism 62 so that the transfer mechanism 62 can absorb the first partition 10 and the second partition 30 within the feeding mechanism 61.

[0066] As one possible implementation, the second position identifier is located on the stacking machine, between the stacking table and the support platform. This facilitates the identification of the position information of the first spacer box and the second spacer on the transfer path of the transfer mechanism, while also reducing the running distance of the transfer mechanism and increasing the transfer rate.

[0067] Of course, this application is not limited to this. In other embodiments, the second position identifier can be located at any position on the stacking machine or the support platform, as long as the transfer mechanism can pass through the second position identifier.

[0068] As an implementation method, the feeding mechanism 61 is a feeding box, in which the first partition 10 and the second partition 30 are stacked alternately.

[0069] By setting up a feeding box and stacking the first and second partitions alternately inside the feeding box, one less feeding mechanism can be set up, saving space and cost.

[0070] In some embodiments, the size of the feed box may be greater than or equal to the size of the first partition 10 and the second partition 30. Preferably, the size of the feed box is slightly larger than the size of the first partition 10 and the second partition 30.

[0071] As an alternative implementation, the first partition 10 and the second partition 30 are either polyethylene sheets or polyethylene terephthalate sheets.

[0072] Specifically, the first partition 10 can be a polyethylene sheet or a polyethylene terephthalate sheet, and the second partition 30 can be a polyethylene sheet or a polyethylene terephthalate sheet. The first partition 10 and the second partition 30 can be the same or different.

[0073] Of course, this application is not limited to this. In other embodiments, the first spacer 10 and the second spacer 30 can also be made of other materials, as long as they can satisfy the requirements of insulation and reliable adhesion to the adhesive 40.

[0074] In some embodiments, such as Figure 5 As shown, after stacking the first spacer, the electrode assembly box, and the second spacer in sequence, the first spacer 10 and the second spacer 30 need to be bonded together by the adhesive 40. The adhesive 40 connects the first spacer 10 and the second spacer 30, which improves the reliability of the adhesive 40 and can fix the electrode assembly 20 located between the first spacer 10 and the second spacer 30, so that the positive electrode 22 and the negative electrode 21 in the electrode assembly 20 are less likely to be misaligned.

[0075] It is understood that there can be one or more adhesives; in this application, the adhesive component 40 is set as multiple.

[0076] In some embodiments, such as Figure 5As shown, one end of the adhesive 40 is bonded to the first spacer 10, and the other end is wound along the thickness direction of the electrode assembly 20 and extended to the second spacer 30 for bonding. Then it continues to be wound along the thickness direction of the electrode assembly 20 and finally wound back to the first spacer 10 for bonding, so as to improve the stability and reliability of the electrode assembly 20.

[0077] In some embodiments, such as Figure 5 As shown, one end of an adhesive member 40 is bonded to one end of the first spacer 10, and the other end of the adhesive member 40 is wound along the thickness direction of the electrode assembly 20 and extends to the second spacer 30 for bonding; one end of another adhesive member 40 is bonded to the other end of the first spacer 10, and the other end of the other adhesive member 40 is wound along the thickness direction of the electrode assembly 20 and extends to the second spacer 30 for bonding.

[0078] In some embodiments, the adhesive 40 may be a high-temperature tape or the like.

[0079] As an implementation method, the thickness of the first partition 10 is 0.1mm-0.3mm; the thickness of the second partition 30 is 0.1mm-0.3mm.

[0080] Specifically, the thickness of the first partition 10 can be 0.1mm, 0.15mm, 0.2mm, 0.25mm, or 0.3mm; the thickness of the second partition 30 can be 0.1mm, 0.15mm, 0.2mm, 0.25mm, or 0.3mm.

[0081] The thickness of the first spacer 10 and the thickness of the second spacer 30 can be the same or different. Preferably, the thickness of the first spacer 10 and the thickness of the second spacer 30 are the same.

[0082] In one possible implementation, the length of the first spacer 10 is greater than the length of the electrode group 20, and the difference a is 0.5mm-1mm; the width of the first spacer 10 is greater than the width of the electrode group 20, and the difference b is 0.5mm-1mm; the length of the second spacer 30 is greater than the length of the electrode group 20, and the difference a is 0.5mm-1mm; the width of the second spacer 30 is greater than the width of the electrode group 20, and the difference b is 0.5mm-1mm.

[0083] Specifically, the length difference between the first spacer 10 and the electrode group 20 can be 0.5mm, 0.6mm, 0.7mm, 0.9mm, 1mm, etc.; the width difference between the first spacer 10 and the electrode group 20 can be 0.5mm, 0.6mm, 0.7mm, 0.9mm, 1mm, etc.; the length difference between the second spacer 30 and the electrode group 20 can be 0.5mm, 0.6mm, 0.7mm, 0.9mm, 1mm, etc.; the width difference between the second spacer 30 and the electrode group 20 can be 0.5mm, 0.6mm, 0.7mm, 0.9mm, 1mm, etc.

[0084] In some embodiments, along the length direction of the first spacer 10, the distance between the two end edges of the electrode group 20 and the two end edges of the first spacer 10 may be the same or different; preferably, the distance is the same. Similarly, along the width direction of the first spacer 10, the distance between the two end edges of the electrode group 20 and the two end edges of the first spacer 10 is the same; along the length direction of the second spacer 30, the distance between the two end edges of the electrode group 20 and the two end edges of the second spacer 30 is the same; along the width direction of the second spacer 30, the distance between the two end edges of the electrode group 20 and the two end edges of the second spacer 30 is the same.

[0085] In use, the solid-state battery stacking device 100 of this application, after receiving the stacking preparation signal from the stacking machine 50 given by the controller, the multi-degree-of-freedom robotic arm 622 moves to the feeding mechanism 61, and makes the negative pressure adsorption member 623 face the feeding mechanism 61. Through the first position recognition member 624, the first spacer 10 is identified and positioned, and the acquired position information is sent to the controller. The controller controls the multi-degree-of-freedom robotic arm 622 to adjust its coordinates according to the position information. Then, through the negative pressure adsorption member 623, a first spacer 10 is adsorbed from the feeding box. The multi-degree-of-freedom robotic arm 622 moves towards the stacking area and approaches the stacking area. The second position identification unit 52 in the area identifies the position information of the first spacer 10 and then sends the acquired position information to the controller. The controller controls the multi-degree-of-freedom robotic arm 622 to adjust the coordinates according to the position information so as to accurately place the first spacer on the stacking area. Then the transfer mechanism 62 performs a reset action. After a certain delay after the reset starts, the stacking machine 50 begins to stack the positive and negative electrode sheets 21. After the last negative electrode sheet 21 is stacked, the transfer mechanism 62 receives the stacking completion signal given by the controller. Then, according to the above-mentioned actions of adsorbing and releasing the first spacer 10, the second spacer 30 is placed on the top layer of the electrode group 20.

[0086] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A solid-state battery stacking device, characterized in that, include: A stacking stage, including a stacking area for stacking electrode units to form an electrode group; A feeding mechanism for providing an insulating, adhesive first and second spacer; A transfer mechanism is used to transfer the first spacer to the stacking area before the electrode units are stacked, and to transfer the second spacer to the side of the electrode group away from the first spacer after a predetermined number of electrode units are stacked on the first spacer to form the electrode group. The transfer mechanism includes a base and a multi-degree-of-freedom robotic arm connected to the base. The execution end of the multi-degree-of-freedom robotic arm is connected to a negative pressure adsorption component. A first position identification component is provided on the side of the negative pressure adsorption component away from the multi-degree-of-freedom robotic arm. The first position identification component is used to identify the positions of the first partition and the second partition of the feeding mechanism to determine the adsorption position of the negative pressure adsorption component.

2. The solid-state battery stacking device according to claim 1, characterized in that, It also includes a controller, which is electrically connected to the first position identification device and the multi-degree-of-freedom robotic arm, and is used to adjust the adsorption position of the negative pressure adsorption device according to the position signal identified by the first position identification device.

3. The solid-state battery stacking device according to claim 2, characterized in that, It also includes a second position identifier, which is disposed adjacent to the stacking area. The controller is electrically connected to the second position identifier and is used to adjust the release position of the negative pressure adsorption component according to the positions of the first and second spacers on the negative pressure adsorption component identified by the second position identifier.

4. The solid-state battery stacking device according to claim 3, characterized in that, It also includes a support platform, which is located on one side of the stacking table, and the feeding mechanism and the transfer mechanism are located on the support platform.

5. The solid-state battery stacking apparatus according to claim 4, characterized in that, It also includes a stacking machine, the stacking table is disposed on the stacking machine, the support platform is disposed on one side of the stacking machine, and the upper surface of the support platform is on the same plane as the upper surface of the stacking machine.

6. The solid-state battery stacking apparatus according to claim 5, characterized in that, The second position identification component is disposed on the stacking machine and is located between the stacking table and the support platform.

7. The solid-state battery stacking device according to claim 1, characterized in that, The feeding mechanism is a feeding box, and the first partition and the second partition are stacked alternately inside the feeding box.

8. The solid-state battery stacking apparatus according to claim 1, characterized in that, The first partition and the second partition are either polyethylene sheets or polyethylene terephthalate sheets.

9. The solid-state battery stacking apparatus according to claim 1, characterized in that, The thickness of the first spacer is 0.1mm-0.3mm; The thickness of the second spacer is 0.1mm-0.3mm.

10. The solid-state battery stacking apparatus according to claim 1, characterized in that, The length of the first spacer is greater than the length of the electrode group, and the difference a is 0.5mm-1mm; the width of the first spacer is greater than the width of the electrode group, and the difference b is 0.5mm-1mm. The length of the second spacer is greater than the length of the electrode group, and the difference a is 0.5mm-1mm. The width of the second spacer is greater than the width of the electrode group, and the difference b is 0.5mm-1mm.

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