Pressurized clamp based on buffer air bag and formation equipment

Abstract

The utility model discloses a pressurization clamp based on buffer air bag, and discloses a formation equipment with the pressurization clamp based on buffer air bag, wherein the pressurization clamp based on buffer air bag comprises a pressure-receiving piece and an air bag pressure piece, has extrusion buffer zone between the pressure-receiving piece and the air bag pressure piece, the extrusion buffer zone is used to place the battery cell, and the air bag pressure piece inflates to extrude the battery cell in the extrusion buffer zone against the pressure-receiving piece. The pressurization clamp based on buffer air bag can make the surface of the battery cell bear force evenly and improve the quality of the battery cell.

Description

Technical Field

[0001] This utility model relates to the technical field of battery production, and in particular to a pressurizing fixture and formation equipment based on a buffer airbag. Background Technology

[0002] Formation is the process by which the positive and negative electrode materials inside a lithium battery are activated through a certain charging and discharging method after the battery is manufactured, thereby improving the overall performance of the lithium battery.

[0003] After assembly, lithium battery cells need to undergo formation and capacity testing. The cell formation process requires pressurization of the cells. Existing pressurization devices use two rigid plates to pressurize the cells.

[0004] However, uneven stress can easily occur on different parts of the surface of the rigid board, resulting in uneven stress on the surface of the battery cell and thus affecting the quality of the battery cell. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a pressure clamp based on a buffer airbag, which can make the surface of the battery cell uniformly stressed and improve the quality of the battery cell.

[0006] This utility model also proposes a chemical formation device having the above-mentioned pressure clamp based on a buffer airbag.

[0007] According to a first aspect of the present invention, a pressure clamp based on a buffer airbag includes a pressure receiving member and an airbag pressure applying member, wherein a compression buffer is provided between the pressure receiving member and the airbag pressure applying member, the compression buffer is used to place a battery cell, and the airbag pressure applying member is inflated to compress the battery cell in the compression buffer against the pressure receiving member.

[0008] The pressure clamp based on a cushioning airbag according to the embodiments of the present invention has at least the following beneficial effects:

[0009] 1. This utility model utilizes the flexible inflation characteristics of the airbag pressure component to achieve uniform pressure on all parts of the battery cell surface, avoiding the problem of local stress concentration caused by insufficient deformation when the battery cell is sandwiched between two rigid plates, which is beneficial to improving the quality of the battery cell.

[0010] 2. By setting up an airbag pressure device, the adaptive deformation of the airbag pressure device during the expansion process can automatically compensate for the pressure at various positions on the surface of the battery cell, ensuring the uniformity of the overall pressure applied to the battery cell by the airbag pressure device, and significantly improving the quality of battery cell formation.

[0011] 3. This utility model, by setting up a pressure-receiving component, has a fixed position. The pressure-receiving component cooperates with the airbag pressure-applying component to compress the battery cell. Thus, when the airbag pressure-applying component inflates and compresses the battery cell, the pressure-receiving component can limit the position of the battery cell. This ensures that the position of the battery cell after being compressed and fixed by the airbag pressure-applying component is accurate. This avoids the positional deviation of the battery cell after being clamped and fixed due to the different pressures of the airbag pressure-applying components on both sides of the battery cell when using two airbag pressure-applying components to clamp the battery cell. Therefore, it is beneficial to maintain the consistency of the fixed position of the battery cell.

[0012] According to some embodiments of the present invention, the airbag pressure-applying component has a first abutting surface, which is used to abut one side of the battery cell.

[0013] The advantages of this invention are: by giving the airbag pressure component a first abutting plane, which is used to abut one side of the battery cell, the setting of the first abutting plane forms a stable reference pressure surface, which can maintain the flexible pressure application characteristics of the airbag pressure component and prevent pressure imbalance caused by excessive deformation of the airbag pressure component. In addition, the planar structure is conducive to uniform pressure transmission, ensuring the uniformity of pressure on one side of the battery cell, and facilitating positioning with other components.

[0014] According to some embodiments of the present invention, the pressure-bearing member has a second abutting plane, which is used to abut the side of the battery cell facing away from the first abutting plane, and the first abutting plane and the second abutting plane are arranged parallel to each other.

[0015] The advantages of this invention are: by giving the pressure-bearing component a second abutting plane, which abuts against the side of the battery cell facing away from the first abutting plane, and by setting the first abutting plane and the second abutting plane parallel to each other, it ensures that the other side of the battery cell remains parallel to the second abutting plane until it abuts against the second abutting plane during the expansion process of the airbag pressure-applying component. This makes the surface of the battery cell more uniformly stressed, thereby improving the quality of the battery cell. At the same time, the parallel arrangement of the first and second abutting planes creates a precise pressure guiding system. Through the synergistic effect of the rigid plane and the flexible airbag, it not only ensures the parallelism of the two sides of the battery cell under pressure, but also compensates for the thickness tolerance of the battery cell.

[0016] According to some embodiments of the present invention, the pressurizing fixture based on the buffer airbag further includes a limiting component, which is used to limit the outer surface of the airbag pressurizing component.

[0017] The advantages of this invention are: by setting a limiting component, which limits the outer side of the airbag pressure component, the limiting component can concentrate the deformation energy of the airbag into vertical pressure by constraining the lateral expansion direction of the airbag. This allows the airbag pressure component to expand smoothly during inflation, ensuring that the battery cells on the airbag pressure component are subjected to uniform compression. In addition, the limiting component's limitation of the outer side of the airbag pressure component maintains the flexible pressure advantage of the airbag pressure component and avoids pressure loss caused by disordered expansion of the airbag pressure component, significantly improving energy conversion efficiency.

[0018] According to some embodiments of the present invention, the limiting component includes a base and a limiting ring. The base is used to connect and fix the periphery of the airbag pressurizing component, and the limiting ring is used to limit the outer surface of the airbag pressurizing component.

[0019] The advantages of this invention are that by including a base and a limiting ring in the limiting component, the base is used to connect and fix the periphery of the airbag pressurizing component, and the limiting ring is used to limit the outer side of the airbag pressurizing component. It can be understood that the cooperative limiting of the base and the limiting ring forms a dual constraint mechanism. The base fixes the periphery to ensure the installation reference accuracy, and the limiting ring controls the radial expansion amplitude, thereby significantly improving the pressure stability of the airbag pressurizing component.

[0020] According to some embodiments of the present invention, the base has a circular groove that accommodates a portion of the airbag pressurizing component, and the inner wall of the circular groove is used to limit the outer surface of the airbag pressurizing component.

[0021] The advantages of this invention are: by setting a circular groove in the base, the circular groove accommodates a part of the airbag pressure component, and the inner sidewall of the circular groove is used to limit the outer side of the airbag pressure component. Thus, the circular groove structure achieves precise positioning of the airbag pressure component through contour constraint, increases the contact area between the inner sidewall of the circular groove and the airbag pressure component, and helps to improve the lateral limiting rigidity.

[0022] According to some embodiments of the present invention, the base is provided with an inflation hole, the inflation hole penetrates the wall of the circular groove, and the inflation hole is connected to the inflation port of the airbag pressure application component.

[0023] The advantage of this invention is that by setting an inflation hole in the base, the inflation hole penetrates the wall of the circular groove and is connected to the inflation port of the airbag pressure component, the inflation device can inflate the airbag pressure component through the inflation hole, thus avoiding the base from obstructing the inflation device's inflation operation of the airbag pressure component.

[0024] According to some embodiments of the present invention, the limiting ring is fixed to the base by a first bolt. The number of the first bolts is set to multiple, and the multiple first bolts are arranged circumferentially along the limiting ring. The multiple first bolts cooperate to limit the outer side of the airbag pressure component.

[0025] The advantages of this invention are: by fixing the limiting ring to the base with first bolts, and by setting multiple first bolts, the multiple first bolts are arranged circumferentially along the limiting ring. The multiple first bolts cooperate to limit the outer side of the airbag pressurizing component. It can be understood that, on the one hand, the first bolts can fix the limiting ring to the base, providing a quick disassembly function and facilitating the maintenance of the limiting ring; on the other hand, the multiple first bolts can cooperate to form a limiting area, which can easily fill the limiting blank area between the limiting ring and the base.

[0026] According to some embodiments of the present invention, the pressure clamp based on the buffer airbag further includes a support plate, which is used to support the limiting component or the airbag pressure application component.

[0027] The advantage of this invention is that by setting a support plate, which is used to support the limiting component or the airbag pressure component, the support plate isolates the working stress of the airbag pressure component from the main frame, thus ensuring structural strength and avoiding frame deformation caused by stress transmission.

[0028] According to some embodiments of the present invention, a plurality of support columns are provided on the support plate, the support columns are used to support the pressure-bearing member, and the pressure-bearing member is connected to the support columns by a second bolt.

[0029] The advantages of this invention are: by setting several support columns on the support plate, the support columns are used to support the pressure-bearing component, and the pressure-bearing component is connected to the support columns by the second bolt. On the one hand, it is convenient to fix the position of the pressure-bearing component and ensure the positioning accuracy of the pressure-bearing component on the battery cell. On the other hand, the pressure-bearing component is detachably connected to the support column by the second bolt, and different specifications of battery cells can be quickly adapted by replacing the support columns of different heights.

[0030] According to a second aspect of the present invention, a chemical formation apparatus includes a pressure clamp and a frame based on a buffer airbag, as described in the first aspect of the present invention, wherein the frame is provided with a plurality of clamping plate moving parts;

[0031] The pressure-bearing component and the airbag pressure-applying component are respectively disposed on two adjacent clamping plate moving components, or the pressure-bearing component and the airbag pressure-applying component respectively constitute two adjacent clamping plate moving components;

[0032] There is a compression buffer zone between the pressure receiving component and the airbag pressure applying component. The compression buffer zone is used to place the battery cell. The airbag pressure applying component inflates to squeeze the battery cell in the compression buffer zone against the pressure receiving component.

[0033] The chemical formation apparatus according to the embodiments of the present utility model has at least the following beneficial effects:

[0034] 1. This utility model utilizes the flexible inflation characteristics of the airbag pressure component to achieve uniform pressure on all parts of the battery cell surface, avoiding the problem of local stress concentration caused by insufficient deformation when the battery cell is sandwiched between two rigid plates, which is beneficial to improving the quality of the battery cell.

[0035] 2. This utility model sets an airbag pressure component in a pressure clamp based on a buffer airbag. The adaptive deformation of the airbag pressure component during the expansion process can automatically compensate for the pressure at various positions on the surface of the battery cell, ensuring the uniformity of overall pressure applied to the battery cell by the airbag pressure component, and significantly improving the quality of battery cell formation.

[0036] 3. This utility model sets a pressure-receiving component in a pressure clamp based on a buffer airbag. The position of the pressure-receiving component is fixed. The pressure-receiving component cooperates with the airbag pressure-applying component to squeeze the battery cell. Thus, when the airbag pressure-applying component inflates and squeezes the battery cell, the pressure-receiving component can limit the position of the battery cell. This ensures that the position of the battery cell after being squeezed and fixed by the airbag pressure-applying component is accurate. This avoids the positional deviation of the battery cell after being clamped and fixed due to the different pressure of the airbag pressure-applying components on both sides of the battery cell when two airbag pressure-applying components are used to clamp the battery cell. Therefore, it is beneficial to maintain the consistency of the fixed position of the battery cell.

[0037] 4. This utility model enables the formation equipment to process multiple battery cells simultaneously by setting multiple clamping plate moving parts on the frame, with the pressure receiving part and the airbag pressure applying part respectively set on two adjacent clamping plate moving parts, or the pressure receiving part and the airbag pressure applying part respectively forming two adjacent clamping plate moving parts. This improves production efficiency.

[0038] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of the chemical formation equipment according to an embodiment of the present utility model;

[0041] Figure 2 for Figure 1 The enlarged view at point A is shown;

[0042] Figure 3 This is a schematic diagram of the structure of the pressure clamp based on the buffer airbag according to an embodiment of the present invention;

[0043] Figure 4 for Figure 3 The side view shown;

[0044] Figure 5 for Figure 3 A schematic diagram of a partial structure is shown.

[0045] Reference numerals: 100-Pressure clamp based on buffer airbag, 110-Pressure-receiving component, 120-Airbag pressure-applying component, 130-First abutment plane, 140-Second abutment plane, 150-Limiting component, 160-Base, 170-Limiting ring, 180-Inflation hole, 190-First bolt, 200-Support plate, 210-Frame. Detailed Implementation

[0046] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0047] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] The following description, in conjunction with the accompanying drawings, describes a pressurizing clamp and formation device based on a buffer airbag according to an embodiment of the present invention.

[0051] This utility model aims to provide embodiments of a pressure clamp and formation device based on a cushioning airbag.

[0052] Reference Figure 1 and Figure 2 In this embodiment, the formation equipment mainly includes a pressure clamp 100 based on a buffer airbag and a frame 210. The frame 210 is provided with multiple clamping plate moving parts. The pressure receiving part 110 and the airbag pressure applying part 120 are respectively arranged on two adjacent clamping plate moving parts, or the pressure receiving part 110 and the airbag pressure applying part 120 respectively constitute two adjacent clamping plate moving parts. There is a compression buffer zone between the pressure receiving part 110 and the airbag pressure applying part 120. The compression buffer zone is used to place the battery cell. The airbag pressure applying part 120 is inflated to squeeze the battery cell in the compression buffer zone against the pressure receiving part 110.

[0053] In this embodiment, multiple clamping plate moving parts are set on the frame 210, and the pressure receiving part 110 and the airbag pressure applying part 120 are respectively set on two adjacent clamping plate moving parts, or the pressure receiving part 110 and the airbag pressure applying part 120 respectively constitute two adjacent clamping plate moving parts. Thus, the formation equipment can process multiple battery cells at the same time, thereby improving production efficiency.

[0054] Furthermore, the formation equipment is also equipped with a drive unit, which is used to drive the clamping plate moving parts to move so that multiple clamping plate moving parts can approach and squeeze the battery cells located on adjacent clamping plate moving parts.

[0055] Reference Figure 3 , Figure 4 and Figure 5 The pressure clamp 100 based on the buffer airbag in this embodiment of the utility model includes a pressure receiving member 110 and an airbag pressure applying member 120. There is a compression buffer between the pressure receiving member 110 and the airbag pressure applying member 120. The compression buffer is used to place the battery cell. The airbag pressure applying member 120 is inflated to squeeze the battery cell in the compression buffer against the pressure receiving member 110.

[0056] This embodiment utilizes the flexible inflation characteristics of the airbag pressure device 120 to achieve uniform pressure on all parts of the battery cell surface, avoiding the problem of local stress concentration caused by insufficient deformation when the battery cell is sandwiched between two rigid plates, which is beneficial to improving the quality of the battery cell.

[0057] In this embodiment, by setting up an airbag pressure device 120, the adaptive deformation of the airbag pressure device 120 during the expansion process can automatically compensate for the pressure at various positions on the surface of the battery cell, ensuring the uniformity of the overall pressure applied to the battery cell by the airbag pressure device 120, and significantly improving the quality of battery cell formation.

[0058] In this embodiment, a pressure-receiving component 110 is provided, and the position of the pressure-receiving component 110 is fixed. The pressure-receiving component 110 cooperates with the airbag pressure-applying component 120 to compress the battery cell. Thus, when the airbag pressure-applying component 120 inflates and compresses the battery cell, the pressure-receiving component 110 can limit the position of the battery cell, so that the position of the battery cell after being compressed and fixed by the airbag pressure-applying component 120 is accurate. This avoids the positional deviation of the battery cell after being clamped and fixed due to the different pressures of the airbag pressure-applying components 120 on both sides of the battery cell when the two airbag pressure-applying components 120 cooperate to clamp the battery cell. Therefore, it is beneficial to maintain the consistency of the fixed position of the battery cell.

[0059] In some specific embodiments, the airbag pressure member 120 has a first abutting plane 130, which is used to abut one side of the battery cell. Thus, the setting of the first abutting plane 130 forms a stable reference pressure surface, which can maintain the flexible pressure application characteristics of the airbag pressure member 120 and prevent pressure imbalance caused by excessive deformation of the airbag pressure member 120. In addition, the planar structure is conducive to uniform pressure transmission, ensuring the uniformity of pressure on one side of the battery cell, and facilitating positioning with other components.

[0060] Furthermore, the pressure-bearing component 110 has a second abutting plane 140, which abuts against the side of the battery cell facing away from the first abutting plane 130. The first abutting plane 130 and the second abutting plane 140 are arranged parallel to each other, thereby ensuring that the other side of the battery cell can remain parallel to the second abutting plane 140 until it abuts against the second abutting plane 140 during the expansion process of the airbag pressure-applying component 120. This makes the surface of the battery cell more uniformly stressed, thereby improving the quality of the battery cell. At the same time, the parallel arrangement of the first abutting plane 130 and the second abutting plane 140 creates a precise pressure guiding system. Through the synergistic effect of the rigid plane and the flexible airbag, the parallelism of the two sides of the battery cell under pressure is ensured, and the thickness tolerance of the battery cell is compensated.

[0061] Specifically, the pressure-bearing component 110 can be configured as a flat plate.

[0062] In some specific embodiments, the pressurizing clamp 100 based on the buffer airbag also includes a limiting component 150. The limiting component 150 is used to limit the outer side of the airbag pressurizing component 120. Thus, by constraining the lateral expansion direction of the airbag, the limiting component 150 concentrates the deformation energy of the airbag into the vertical pressure, so that the airbag pressurizing component 120 can expand smoothly when inflated, ensuring that the battery cells on the airbag pressurizing component 120 are subjected to uniform compression. In addition, the limiting component 150 limits the outer side of the airbag pressurizing component 120, which not only maintains the flexible pressure advantage of the airbag pressurizing component 120, but also avoids the pressure loss caused by the disorderly expansion of the airbag pressurizing component 120, significantly improving the energy conversion efficiency.

[0063] Specifically, the limiting component 150 includes a base 160 and a limiting ring 170. The base 160 is used to connect and fix the periphery of the airbag pressurizing component 120, and the limiting ring 170 is used to limit the outer surface of the airbag pressurizing component 120.

[0064] Understandably, the coordinated limiting of the base 160 and the limiting ring 170 forms a dual constraint mechanism. The fixed periphery of the base 160 ensures the accuracy of the installation reference, while the limiting ring 170 controls the radial expansion amplitude, thereby significantly improving the pressure stability of the airbag pressurizing component 120.

[0065] Furthermore, the base 160 has a circular groove that accommodates a portion of the airbag pressurizing component 120. The inner wall of the circular groove is used to limit the outer surface of the airbag pressurizing component 120. Thus, the circular groove structure achieves precise positioning of the airbag pressurizing component 120 through contour constraint, increasing the contact area between the inner wall of the circular groove and the airbag pressurizing component 120, which is beneficial to improving the lateral limiting rigidity.

[0066] Furthermore, the base 160 is provided with an inflation hole 180, which penetrates the wall of the circular groove and is connected to the inflation port of the airbag pressure member 120. This allows the inflation device to inflate the airbag pressure member 120 through the inflation hole 180, preventing the base 160 from obstructing the inflation device's inflation operation of the airbag pressure member 120.

[0067] In some specific embodiments, the limiting ring 170 is fixed to the base 160 by the first bolt 190. The number of first bolts 190 is set to be multiple, and the multiple first bolts 190 are arranged along the circumference of the limiting ring 170. The multiple first bolts 190 cooperate to limit the outer side of the airbag pressure member 120.

[0068] Understandably, on the one hand, the first bolt 190 can fix the limiting ring 170 to the base 160, providing a quick disassembly function and facilitating the maintenance of the limiting ring 170. On the other hand, multiple first bolts 190 can cooperate to form a limiting area, which can easily fill the limiting blank area between the limiting ring 170 and the base 160.

[0069] In some specific embodiments, the airbag-based pressurizing clamp 100 further includes a support plate 200, which supports the limiting component 150 or the airbag pressurizing component 120.

[0070] Understandably, the support plate 200 isolates the working stress of the airbag pressure component 120 from the main frame, ensuring structural strength while preventing frame deformation caused by stress transmission.

[0071] It should be explained that the circular groove can pass through the base 160, in which case the support plate 200 is used to support the airbag pressurizing component 120; or the circular groove can not pass through the base 160, in which case the support plate 200 is used to support the base 160 of the limiting component 150.

[0072] Furthermore, the support plate 200 is provided with several support columns, which are used to support the pressure-bearing component 110. The pressure-bearing component 110 is connected to the support columns by a second bolt. On the one hand, this facilitates fixing the position of the pressure-bearing component 110 and ensures the positioning accuracy of the pressure-bearing component 110 on the battery cell. On the other hand, the pressure-bearing component 110 is detachably connected to the support columns by the second bolt, which allows for quick adaptation to different specifications of battery cells by replacing support columns of different heights.

[0073] Furthermore, four support columns are provided, arranged in a rectangular pattern, which makes the support of the pressure-bearing component 110 more stable.

[0074] In some specific embodiments, the base 160 is fixed to the support plate 200 by a third bolt, thereby facilitating the disassembly and maintenance of the base 160.

[0075] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0077] It should also be noted that, in the description of this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0078] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0079] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0080] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pressurization clamp based on a cushioning airbag, characterized in that, It includes a pressure receiving member (110) and an airbag pressure applying member (120), with a compression buffer between the pressure receiving member (110) and the airbag pressure applying member (120), the compression buffer being used to place the battery cell, and the airbag pressure applying member (120) being inflated to squeeze the battery cell in the compression buffer against the pressure receiving member (110).

2. The pressurization clamp based on a buffer airbag according to claim 1, characterized in that, The airbag pressure application member (120) has a first abutting surface (130) for abutting one side of the battery cell.

3. The pressure clamp based on a buffer airbag according to claim 2, characterized in that, The pressure-bearing member (110) has a second abutting surface (140), which is used to abut the side of the battery cell facing away from the first abutting surface (130). The first abutting surface (130) and the second abutting surface (140) are arranged parallel to each other.

4. The pressurization clamp based on a buffer airbag according to claim 1, characterized in that, It also includes a limiting component (150) for limiting the outer surface of the airbag pressurizing component (120).

5. The pressurization clamp based on a buffer airbag according to claim 4, characterized in that, The limiting component (150) includes a base (160) and a limiting ring (170). The base (160) is used to connect and fix the periphery of the airbag pressure member (120), and the limiting ring (170) is used to limit the outer side of the airbag pressure member (120).

6. The pressurization clamp based on a buffer airbag according to claim 5, characterized in that, The base (160) has a circular groove that accommodates a portion of the airbag pressure member (120), and the inner wall of the circular groove is used to limit the outer surface of the airbag pressure member (120).

7. The pressurization clamp based on a buffer airbag according to claim 6, characterized in that, The base (160) is provided with an inflation hole (180), which penetrates the wall of the circular groove and is connected to the inflation port of the airbag pressure device (120).

8. The pressurization clamp based on a buffer airbag according to claim 5, characterized in that, The limiting ring (170) is fixed to the base (160) by the first bolt (190). There are multiple first bolts (190), which are arranged circumferentially along the limiting ring (170). The multiple first bolts (190) cooperate to limit the outer side of the airbag pressure member (120).

9. The pressurization clamp based on a buffer airbag according to claim 4, characterized in that, It also includes a support plate (200) for supporting the limiting component (150) or the airbag pressurizing component (120).

10. A chemical formation device, characterized in that, The device includes a pressure clamp (100) based on a buffer airbag as described in any one of claims 1 to 9 and a frame (210), wherein the frame (210) is provided with a plurality of clamping plate moving parts; The pressure-receiving component (110) and the airbag pressure-applying component (120) are respectively disposed on two adjacent clamping plate moving components, or the pressure-receiving component (110) and the airbag pressure-applying component (120) respectively constitute two adjacent clamping plate moving components; There is a compression buffer between the pressure receiving member (110) and the airbag pressure applying member (120), the compression buffer is used to place the battery cell, and the airbag pressure applying member (120) is inflated to squeeze the battery cell in the compression buffer against the pressure receiving member (110).

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