Pouch battery cell module

Abstract

The utility model relates to battery technology field, specifically disclose a kind of soft package battery module, including frame body, soft package battery body, elastic component and clamping buffer assembly, frame body has accommodating cavity, frame body includes first bottom plate and first side wall, first bottom plate both sides are equipped with first side wall, first bottom plate and first side wall are enclosed and form accommodating cavity;Soft package battery body is located in accommodating cavity;Elastic component is located between soft package battery body and first bottom plate;Clamping buffer assembly is located in accommodating cavity, and is connected with first bottom plate, the both sides of soft package battery body are equipped with clamping buffer assembly, and clamping buffer assembly is used to clamp soft package battery body.The utility model can dynamically match the expansion of soft package battery body, to eliminate mechanical stress, avoid soft package battery body to appear material cracking, diaphragm damage even electrolyte leakage and so on;And in the process of collision, the impact force that soft package battery body can be slowed down, guarantee the stability of soft package battery body.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a soft-pack battery cell module. Background Technology

[0002] Pouch cells, also known as soft-pack cells, use aluminum-plastic film as their packaging material and play a crucial role in lithium-ion batteries. A pouch cell module is a complete battery module formed by combining multiple pouch cells through a specific structural design. In existing technologies, because pouch cells undergo significant volume changes during charging and discharging, traditional mounting brackets, due to their rigid constraints, can cause stress concentration within the cell, potentially leading to material cracking, separator damage, or even electrolyte leakage. Furthermore, the mounting brackets are ineffective at cushioning impacts, resulting in significant impact forces on the cell. Utility Model Content

[0003] The technical problem to be solved by this utility model is: how to solve the problem that the existing technology uses a fixed bracket, which causes stress concentration inside the battery cell, resulting in damage or leakage, and the problem that it cannot play a buffering role when subjected to external impact.

[0004] To solve the above-mentioned technical problems, this utility model provides a soft-pack battery cell module having a first direction, a second direction, and a third direction that are perpendicular to each other, including:

[0005] A frame having a receiving cavity, the frame including a first base plate and a first side wall, the first base plate having the first side wall on opposite sides along a second direction, the first base plate and the first side wall surrounding to form the receiving cavity;

[0006] The soft-pack battery cell body is disposed in the receiving cavity;

[0007] An elastic component, disposed between the pouch cell body and the first base plate, is configured to drive the pouch cell body to move along the third direction away from the first base plate; and...

[0008] A clamping buffer assembly is disposed in the receiving cavity and connected to the first base plate. The clamping buffer assembly is provided on both sides of the soft-pack battery cell body along the second direction. The clamping buffer assembly clamps the soft-pack battery cell body along the second direction.

[0009] More preferably, the clamping buffer assembly includes:

[0010] A support plate is connected to the first base plate, and the support plate and the soft-pack battery cell body are spaced apart in the second direction;

[0011] A dynamic adjustment module is located on the side of the support plate facing the soft-pack battery cell body; and,

[0012] A clamping plate is disposed between the support plate and the soft-pack battery cell body, and the clamping plate is connected to the dynamic adjustment module;

[0013] The dynamic adjustment module is configured to drive the clamping plate to move closer to or further away from the pouch cell body along the second direction.

[0014] More preferably, the dynamic adjustment module includes:

[0015] A limiting rod is provided on the side of the support plate facing the clamping plate, and the limiting rod extends along the second direction;

[0016] An mounting plate is disposed between the support plate and the clamping plate, and the mounting plate is slidably connected to the limiting rod;

[0017] A driving member is disposed on the side of the mounting plate facing the clamping plate, the driving member having an output end, the output end of the driving member being connected to the clamping plate; and,

[0018] A third elastic element is disposed between the support plate and the mounting plate, and the third elastic element is configured to drive the mounting plate to move along the second direction.

[0019] More preferably, the clamping buffer assembly further includes a pressure sensor, which is disposed between the output end of the drive member and the clamping plate.

[0020] More preferably, a second base plate is provided at one end of the soft-pack battery cell body near the first base plate, the second base plate and the first base plate are spaced apart in the third direction, and the elastic component is disposed between the first base plate and the second base plate.

[0021] More preferably, the elastic component has a cavity, and the elastic component includes a first elastic element and a second elastic element, both of which are connected to the first base plate and the second base plate, and the first elastic element and the second elastic element together form the cavity.

[0022] More preferably, the first elastic element includes a first folding plate and a second folding plate connected to each other, the plane of the first folding plate intersects the plane of the second folding plate, the end of the first folding plate away from the second folding plate is connected to the first base plate, and the end of the second folding plate away from the first folding plate is connected to the second base plate;

[0023] The second elastic element includes a third fold plate and a fourth fold plate. The plane where the third fold plate is located intersects the plane where the fourth fold plate is located. The end of the third fold plate away from the fourth fold plate is connected to the first base plate, and the end of the fourth fold plate away from the third fold plate is connected to the second base plate.

[0024] The cavity is formed by the first folding plate, the second folding plate, the third folding plate, and the fourth folding plate together.

[0025] More preferably, along the third direction, the frame body has an opening on the side away from the first base plate, and the first sidewall has a first flange extending along the second direction at the end near the opening;

[0026] The pouch cell module also includes:

[0027] A cover plate, which is connected to the first flange and covers the opening, and a support plate is connected to the cover plate.

[0028] More preferably, the cover plate has a clearance hole, and the end of the soft-pack battery cell body away from the second base plate has a tab, and the tab extends at least partially through the clearance hole in the third direction.

[0029] More preferably, the first flange is provided with a first connecting hole, and the cover plate is provided with a second connecting hole, the first connecting hole and the second connecting hole corresponding to each other in the third direction;

[0030] The cover plate is also provided with a connector, which passes through the first connecting hole and the second connecting hole to lock the cover plate and the first flange.

[0031] Compared with the prior art, the soft-pack battery module provided by this utility model has the following advantages:

[0032] This invention, by setting an elastic component at the bottom of the pouch cell body and clamping buffer components on both sides of the pouch cell body, can dynamically match the expansion amount of the pouch cell body in the second and third directions, thereby eliminating mechanical stress and preventing material cracking, diaphragm damage, or even electrolyte leakage, thus extending the service life of the pouch cell body. Furthermore, during a collision, the elastic component and clamping buffer components can absorb most of the collision energy, thereby mitigating the impact force on the pouch cell body and protecting it, ensuring its stability. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of the soft-pack battery cell module described in this utility model.

[0034] Figure 2 This is an exploded view of the soft-pack battery module described in this utility model.

[0035] Figure 3 This is a side view of the soft-pack battery module described in this utility model.

[0036] Figure 4 This is an assembly diagram of the clamping buffer assembly and the soft-pack battery cell body described in this utility model.

[0037] Figure 5 This is a schematic diagram of the clamping and buffering assembly described in this utility model.

[0038] Figure label:

[0039] 10. Frame; 11. First base plate; 12. First side wall; 13. First flange; 131. First connecting hole; 14. Receiving cavity;

[0040] 20. Cover plate; 21. Clearance hole; 22. Connector; 23. Second connecting hole;

[0041] 30. Soft-pack battery cell body; 31. Second base plate; 32. Electrode tab;

[0042] 40. Elastic component; 41. First elastic element; 411. First folding plate; 412. Second folding plate; 42. Second elastic element; 421. Third folding plate; 422. Fourth folding plate;

[0043] 50. Clamping buffer assembly; 51. Support plate; 52. Dynamic adjustment module; 521. Mounting plate; 522. Limiting rod; 523. Third elastic element; 524. Driving element; 525. Pressure sensor; 53. Clamping plate;

[0044] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0046] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0048] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0052] like Figures 1 to 5 As shown, this utility model provides a soft-pack battery module having two perpendicular directions: a first direction X, a second direction Y, and a third direction Z.

[0053] In some embodiments, the pouch cell module includes a frame 10, a pouch cell body 30, an elastic component 40, and a clamping buffer component 50; wherein the frame 10 has a receiving cavity 14, and the pouch cell body 30, the elastic component 40, and the clamping buffer component 50 are all disposed in the receiving cavity 14.

[0054] In a specific embodiment, the frame 10 includes a first base plate 11 and a first side wall 12. The first base plate 11 has the first side wall 12 on opposite sides along the second direction Y. The first base plate 11 and the first side wall 12 surround and form a receiving cavity 14. An elastic component 40 is disposed between the soft-pack battery cell body 30 and the first base plate 11. The elastic component 40 is configured to drive the soft-pack battery cell body 30 to move away from the first base plate 11 along the third direction Z. A clamping buffer component 50 is connected to the first base plate 11. The soft-pack battery cell body 30 has clamping buffer components 50 on opposite sides along the second direction Y. The clamping buffer components 50 clamp the soft-pack battery cell body 30 along the second direction Y. Therefore, by setting an elastic component 40 at the bottom of the pouch cell body 30 and setting clamping buffer components 50 on both sides of the pouch cell body 30, the expansion amount of the pouch cell body 30 in the second direction Y and the third direction Z can be dynamically matched, thereby eliminating mechanical stress and preventing material cracking, diaphragm damage, or even electrolyte leakage of the pouch cell body 30, thus extending the service life of the pouch cell body 30. At the same time, during the collision process, the elastic component 40 and the clamping buffer components 50 can absorb most of the collision energy, thereby reducing the impact force on the pouch cell body 30, thus protecting the pouch cell body 30 and ensuring its stability.

[0055] It should be noted that the soft-pack battery cell body 30 is usually rectangular in shape. Along the second direction Y, it has two large surfaces, and along the first direction X and the third direction Z, it has four small surfaces. The elastic component 40 acts on the small surfaces of the soft-pack battery cell body 30, and the clamping buffer component 50 acts on the large surfaces of the soft-pack battery cell body 30.

[0056] In some embodiments, the clamping buffer assembly 50 includes a support plate 51, a dynamic adjustment module 52, and a clamping plate 53; the support plate 51 is connected to the first base plate 11, and the support plate 51 and the soft-pack battery cell body 30 are spaced apart in the second direction Y; the dynamic adjustment module 52 is located on the side of the support plate 51 facing the soft-pack battery cell body 30; the clamping plate 53 is located between the support plate 51 and the soft-pack battery cell body 30, and the clamping plate 53 is connected to the dynamic adjustment module 52; wherein, the dynamic adjustment module 52 is configured to drive the clamping plate 53 to move closer to or away from the soft-pack battery cell body 30 along the second direction Y. Therefore, when the pouch cell body 30 expands, the clamping plate 53 acts on the dynamic adjustment module 52 to adjust the distance between the clamping plate 53 and the pouch cell body 30, which can dynamically match the expansion amount of the pouch cell body 30, thereby eliminating mechanical stress and preventing material cracking, diaphragm damage, or even electrolyte leakage of the pouch cell body 30, thus extending the service life of the pouch cell body 30. During the collision process, the dynamic adjustment module 52 can also adjust the distance between the clamping plate 53 and the pouch cell body 30 to reduce the impact force on the pouch cell body 30, thereby ensuring the stability of the pouch cell body 30.

[0057] In some embodiments, the dynamic adjustment module 52 includes a mounting plate 521, a limiting rod 522, a driving member 524, and a third elastic member 523. The limiting rod 522 is disposed on the side of the support plate 51 facing the clamping plate 53 and extends along the second direction Y. The mounting plate 521 is disposed between the support plate 51 and the clamping plate 53 and is slidably connected to the limiting rod 522. The driving member 524 is disposed on the side of the mounting plate 521 facing the clamping plate 53 and has an output end connected to the clamping plate 53. The third elastic member 523 is disposed between the support plate 51 and the mounting plate 521 and is configured to drive the mounting plate 521 to move along the second direction Y. Thus, the driving component 524 can directly drive the clamping plate 53 to approach and fit against the large surface of the soft-pack battery cell body 30, thereby clamping the soft-pack battery cell body 30 in the second direction Y. The contact area between the clamping plate 53 and the large surface of the soft-pack battery cell body 30 is large, and the packaging of the soft-pack battery cell body 30 will not be damaged during the clamping process. The mounting plate 521 can slide along the limiting rod 522. Since the support plate 51 is fixed to the frame 10, the elastic force of the third elastic element 523 can push the mounting plate 521 to drive the driving component 524 to move along the second direction Y, thereby pushing the clamping plate 53 to fit against the large surface of the soft-pack battery cell body 30. When the soft-pack battery cell body 30 expands, the third elastic element 523 can absorb the expansion amount of the soft-pack battery cell body 30, thereby eliminating mechanical stress and avoiding material cracking, diaphragm damage or even electrolyte leakage of the soft-pack battery cell body 30, thus extending the service life of the soft-pack battery cell body 30.

[0058] In addition, during the collision, the third elastic element 523 provides elastic buffering, which can absorb most of the collision energy, thereby reducing the impact force on the soft-pack battery cell body 30, and thus ensuring the integrity and stability of the soft-pack battery cell body 30.

[0059] In some embodiments, the third elastic element 523 is a compression spring to ensure that the clamping plate 53 can always be in contact with the large surface of the soft-pack battery cell body 30, thereby achieving clamping and fixing of the soft-pack battery cell body 30.

[0060] In some implementations, there are multiple limit rods 522 to ensure the movement balance and stability of the mounting plate 521.

[0061] In some embodiments, in order to dynamically adjust the distance between the clamping plate 53 and the soft-pack battery cell body 30 and ensure appropriate clamping force, the clamping buffer assembly 50 further includes a pressure sensor 525. The pressure sensor 525 is located between the output end of the drive member 524 and the clamping plate 53. Thus, when the drive member 524 pushes the clamping plate 53 close to and fits against the soft-pack battery cell body 30, the clamping tightness between the clamping plate 53 and the soft-pack battery cell body 30 can be determined based on the pressure value fed back by the pressure sensor 525.

[0062] In some embodiments, the elastic component 40 is disposed between the first base plate 11 and the soft-pack battery cell body 30. The elastic component 40 can provide elastic support for the soft-pack battery cell body 30 and can also reduce the impact of external force on the soft-pack battery cell body 30 when subjected to external impact.

[0063] In some embodiments, to ensure that the elastic component 40 can provide stable and balanced elastic support for the pouch cell body 30, a second base plate 31 is provided at one end of the pouch cell body 30 near the first base plate 11. The second base plate 31 and the first base plate 11 are spaced apart in the third direction Z. The elastic component 40 is disposed between the first base plate 11 and the second base plate 31. The second base plate 31 can increase the contact area between the pouch cell body 30 and the elastic component 40. When subjected to external impact, the elastic component 40 deforms and further increases the contact area with the second base plate 31, thereby providing a more stable and balanced support force for the pouch cell body 30.

[0064] In some embodiments, the elastic component 40 has a cavity, and the elastic component 40 includes a first elastic element 41 and a second elastic element 42. The first elastic element 41 and the second elastic element 42 are both connected to the first base plate 11 and the second base plate 31, and the first elastic element 41 and the second elastic element 42 together form the cavity. Specifically, the first elastic element 41 includes a first folding plate 411 and a second folding plate 412 connected to each other. The plane where the first folding plate 411 is located intersects the plane where the second folding plate 412 is located, and the end of the first folding plate 411 away from the second folding plate 412 is connected to the first base plate 11. Next, the end of the second fold plate 412 away from the first fold plate 411 is connected to the second base plate 31; the second elastic member 42 includes a third fold plate 421 and a fourth fold plate 422, the plane where the third fold plate 421 is located intersects the plane where the fourth fold plate 422 is located, the end of the third fold plate 421 away from the fourth fold plate 422 is connected to the first base plate 11, and the end of the fourth fold plate 422 away from the third fold plate 421 is connected to the second base plate 31; wherein, the first fold plate 411, the second fold plate 412, the third fold plate 421 and the fourth fold plate 422 together form a quadrilateral cavity. Thus, under the expansion of the pouch cell body 30 or under the action of external force, the elastic component 40 deforms, the cavity is compressed, and the second base plate 31 and the elastic component 40 gradually change from line contact to surface contact. The greater the expansion force or external force, the larger the contact area between the second base plate 31 and the elastic component 40. This ensures the expansion amount of the pouch cell body 30 in the third direction Z, providing more stable elastic support for the pouch cell body 30. At the same time, it can eliminate mechanical stress and reduce the impact of external force on the pouch cell body 30.

[0065] In other embodiments, the frame 10 also includes a second sidewall (not shown), which is disposed at opposite ends of the soft-pack battery cell body 30 along the first direction X. The second sidewall is perpendicularly connected to the first sidewall, and the second sidewall is also provided with an elastic component 40 for buffering and supporting the side of the soft-pack battery cell body 30, thereby further reducing the impact of external force on the soft-pack battery cell body 30.

[0066] In some embodiments, along the third direction Z, the frame 10 has an opening on the side away from the first base plate 11, and the first sidewall 12 has a first flange 13 extending along the second direction Y at the end near the opening; the soft-pack battery module also includes a cover plate 20, which is connected to the first flange 13 and covers the opening, the support plate 51 is connected to the cover plate 20, and the cover plate 20 and the frame 10 together form a receiving cavity 14, the top of the soft-pack battery body 30 abuts against the cover plate 20, and the soft-pack battery body 30 is fixed in the third direction Z under the action of the elastic component 40.

[0067] In some embodiments, the cover plate 20 has a clearance hole 21, and the end of the soft-pack battery cell body 30 away from the second base plate 31 has a tab 32. The tab 32 extends at least partially through the clearance hole 21 in the third direction Z to facilitate the connection of the busbar. Specifically, the tab 32 includes a positive tab and a negative tab, and the busbar includes a positive busbar and a negative busbar. The positive tab is connected to the positive current collector, and the negative tab is connected to the negative busbar to meet the charging and discharging needs of the soft-pack battery cell body 30.

[0068] In some embodiments, the first flange 13 can increase the contact area between the frame 10 and the cover plate 20, thereby improving the connection stability of the first flange 13. Furthermore, the first flange 13 is provided with a first connecting hole 131, and the cover plate 20 is provided with a second connecting hole 23. The first connecting hole 131 and the second connecting hole 23 correspond to each other in the third direction Z. The cover plate 20 is also provided with a connector 22, which passes through the first connecting hole 131 and the second connecting hole 23 to lock the cover plate 20 and the first flange 13. By providing the connector 22, the frame 10 and the cover plate 20 can be detachably connected, so as to facilitate the assembly and disassembly of the soft-pack battery module.

[0069] In some embodiments, the connector 22 is preferably a bolt assembly.

[0070] In summary, the pouch cell module provided by this utility model, by setting an elastic component 40 at the bottom of the pouch cell body 30 and setting clamping buffer components 50 on both sides of the pouch cell body 30, can dynamically match the expansion amount of the pouch cell body 30 in the second direction Y and the third direction Z, thereby eliminating mechanical stress and avoiding material cracking, diaphragm damage, or even electrolyte leakage of the pouch cell body 30, thus extending the service life of the pouch cell body 30. Moreover, during the collision process, the elastic component 40 and the clamping buffer components 50 can absorb most of the collision energy, thereby reducing the impact force on the pouch cell body 30, thus protecting the pouch cell body 30 and ensuring its stability.

[0071] In other embodiments, the pouch cell body 30 can be a rechargeable battery, also known as a rechargeable battery or accumulator, which is a battery that can be recharged after discharge to reactivate the active materials and continue to be used. Utilizing the reversibility of chemical reactions, a new battery can be constructed; that is, after a chemical reaction converts into electrical energy, the electrical energy can be used to repair the chemical system, and then the chemical reaction can be converted back into electrical energy. Therefore, it is called a rechargeable battery.

[0072] This utility model also proposes an electrical device, which includes the above-mentioned soft-pack battery cell module. The specific structure of the soft-pack battery cell module is as described in the above embodiments. Since this electrical device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0073] The electrical equipment can include vehicles, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. This embodiment does not impose special limitations on the above-mentioned electrical equipment.

[0074] The above description is merely a preferred embodiment of this utility model. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model. The basic principles, main features, and advantages of this utility model have been shown and described above. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above preferred embodiments. The embodiments should be considered exemplary and non-limiting. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included within this utility model.

[0075] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A soft-pack battery module, having a first direction (X), a second direction (Y), and a third direction (Z) that are perpendicular to each other, characterized in that, include: A frame (10) having a receiving cavity (14) includes a first base plate (11) and a first side wall (12). The first base plate (11) has the first side wall (12) on opposite sides along the second direction (Y). The first base plate (11) and the first side wall (12) surround and form the receiving cavity (14). The soft-pack battery cell body (30) is disposed in the receiving cavity (14); An elastic component (40) is disposed between the pouch cell body (30) and the first base plate (11), the elastic component (40) being configured to drive the pouch cell body (30) to move along the third direction (Z) in a direction away from the first base plate (11); and, A clamping buffer assembly (50) is disposed in the receiving cavity (14) and connected to the first base plate (11). The clamping buffer assembly (50) is provided on both sides of the soft-pack battery cell body (30) along the second direction (Y). The clamping buffer assembly (50) clamps the soft-pack battery cell body (30) along the second direction (Y).

2. The soft-pack battery module according to claim 1, characterized in that, The clamping buffer assembly (50) includes: A support plate (51) is connected to the first base plate (11), and the support plate (51) and the soft-pack battery cell body (30) are spaced apart in the second direction (Y); A dynamic adjustment module (52) is disposed on the side of the support plate (51) facing the soft-pack battery cell body (30); and, A clamping plate (53) is disposed between the support plate (51) and the soft-pack battery cell body (30), and the clamping plate (53) is connected to the dynamic adjustment module (52); The dynamic adjustment module (52) is configured to drive the clamp (53) to move closer to or further away from the soft-pack battery cell body (30) along the second direction (Y).

3. A soft-pack battery module according to claim 2, characterized in that, The dynamic adjustment module (52) includes: A limiting rod (522) is provided on the side of the support plate (51) facing the clamping plate (53), and the limiting rod (522) extends along the second direction (Y); An mounting plate (521) is disposed between the support plate (51) and the clamping plate (53), and the mounting plate (521) is slidably connected to the limiting rod (522); A driving member (524) is disposed on the side of the mounting plate (521) facing the clamping plate (53), the driving member (524) having an output end, the output end of the driving member (524) being connected to the clamping plate (53); and, A third elastic element (523) is disposed between the support plate (51) and the mounting plate (521), and the third elastic element (523) is configured to drive the mounting plate (521) to move along the second direction (Y).

4. A soft-pack battery module according to claim 3, characterized in that, The clamping buffer assembly (50) also includes a pressure sensor (525), which is located between the output end of the drive member (524) and the clamping plate (53).

5. A soft-pack battery module according to claim 1, characterized in that, The soft-pack battery cell body (30) has a second base plate (31) at one end near the first base plate (11). The second base plate (31) and the first base plate (11) are spaced apart in the third direction (Z). The elastic component (40) is located between the first base plate (11) and the second base plate (31).

6. A soft-pack battery module according to claim 5, characterized in that, The elastic component (40) has a cavity. The elastic component (40) includes a first elastic element (41) and a second elastic element (42). The first elastic element (41) and the second elastic element (42) are both connected to the first base plate (11) and the second base plate (31). The first elastic element (41) and the second elastic element (42) together form the cavity.

7. A soft-pack battery module according to claim 6, characterized in that, The first elastic element (41) includes a first folding plate (411) and a second folding plate (412) connected to each other. The plane where the first folding plate (411) is located intersects the plane where the second folding plate (412) is located. The end of the first folding plate (411) away from the second folding plate (412) is connected to the first base plate (11), and the end of the second folding plate (412) away from the first folding plate (411) is connected to the second base plate (31). The second elastic element (42) includes a third fold plate (421) and a fourth fold plate (422). The plane where the third fold plate (421) is located intersects the plane where the fourth fold plate (422) is located. The end of the third fold plate (421) away from the fourth fold plate (422) is connected to the first base plate (11), and the end of the fourth fold plate (422) away from the third fold plate (421) is connected to the second base plate (31). The cavity is formed by the first folding plate (411), the second folding plate (412), the third folding plate (421), and the fourth folding plate (422).

8. A soft-pack battery module according to claim 5, characterized in that, Along the third direction (Z), the frame (10) has an opening on the side away from the first base plate (11), and the first sidewall (12) has a first flange (13) extending along the second direction (Y) at the end near the opening; The pouch cell module also includes: A cover plate (20) is connected to the first flange (13) and covers the opening, and a support plate (51) is connected to the cover plate (20).

9. A soft-pack battery module according to claim 8, characterized in that, The cover plate (20) has a clearance hole (21), and the soft-pack battery cell body (30) has a tab (32) at one end away from the second base plate (31). The tab (32) extends through the clearance hole (21) at least partially along the third direction (Z).

10. A soft-pack battery module according to claim 8, characterized in that, The first flange (13) is provided with a first connecting hole (131), and the cover plate (20) is provided with a second connecting hole (23). The first connecting hole (131) and the second connecting hole (23) correspond to each other in the third direction (Z). The cover plate (20) is also provided with a connector (22), which passes through the first connecting hole (131) and the second connecting hole (23) to lock the cover plate (20) and the first flange (13).

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