A jelly frame structure of a soft package battery and a soft package battery

Abstract

The utility model relates to battery technical field discloses a kind of glue frame structure and soft package battery of soft package battery, the glue frame structure of soft package battery provided by the utility model, including oppositely arranged top frame and bottom frame and oppositely arranged first side frame and second side frame, top frame, first side frame, bottom frame and second side frame head-to-tail connection to form the cavity containing battery cell;Bottom frame is oppositely arranged with the bottom of battery cell, the opposite surface of bottom frame with battery cell is equipped with baffle, baffle is parallelly arranged with bottom frame, and the glue penetration hole that penetrates baffle is equipped on baffle along the thickness direction of baffle.The utility model is directly impacted by glue liquid to the aluminum plastic film of battery cell by setting baffle at the bottom frame of glue frame structure, to buffer injection glue liquid, to buffer injection glue liquid;Glue penetration hole is set on baffle, to adjust glue liquid flow speed, so that glue liquid is evenly distributed, avoid local pressure too large, and then prevent the condition of occurrence that aluminum plastic film appears indentation.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically relating to a plastic frame structure for a soft-pack battery and the soft-pack battery itself. Background Technology

[0002] In the manufacturing of pouch cells, low-pressure injection molding is widely used in the production of pouch cells where all four sides need to be filled with adhesive. This process aims to provide a good seal and protection for the battery, ensuring its performance and safety. However, in actual production, this process has revealed some problems that urgently need to be addressed.

[0003] The bottom of the cell in a pouch battery has a special structure; the aluminum-plastic film and the core are not tightly bonded, but rather have a certain gap. As a key component of pouch batteries, the aluminum-plastic film is relatively soft, a characteristic that becomes a potential hazard during low-pressure injection molding. During low-pressure injection, the injection pressure directly acts on the aluminum-plastic film, causing it to be squeezed; changes in the injection speed also alter the flow state of the adhesive, indirectly affecting the pressure on the aluminum-plastic film. Under the combined effect of these factors, the adhesive can compress the aluminum-plastic film to a certain extent, causing it to dent and form indentations.

[0004] The aluminum-plastic film not only encapsulates the battery cell and protects its internal structure from external environmental corrosion, but it is also crucial to the stability of the cell's internal structure. Dents can damage the cell's internal structure, causing changes in the spacing between electrodes and affecting the battery's charging and discharging performance. In severe cases, dents may even puncture the separator inside the cell, causing an internal short circuit and reducing battery safety and lifespan. Utility Model Content

[0005] To address the problems in the prior art where there is a gap between the aluminum-plastic film at the bottom of the battery cell and the core, and the aluminum-plastic film is soft, causing it to easily dent and form indentations under the pressure and speed of low-pressure glue injection, thus damaging the internal structure of the battery cell and affecting battery performance and safety, this utility model provides a plastic frame structure for a soft-pack battery and a soft-pack battery.

[0006] The technical effect to be achieved by this utility model is realized through the following technical solution:

[0007] Firstly, this utility model provides a frame structure for a soft-pack battery to accommodate a battery cell. It includes a top frame and a bottom frame, as well as a first side frame and a second side frame, arranged opposite to each other. The top frame, the first side frame, the bottom frame, and the second side frame are connected end-to-end to form a cavity for accommodating the battery cell. The bottom frame is positioned opposite to the bottom of the battery cell. A baffle is provided on the side of the bottom frame opposite to the battery cell, and the baffle is parallel to the bottom frame. A through-hole for adhesive penetration is provided on the baffle along its thickness direction. By providing a baffle at the bottom frame of the frame structure, the injected adhesive is blocked, thus buffering the direct impact of the adhesive on the aluminum-plastic film of the battery cell during injection. By providing through-holes on the baffle, the flow rate of the adhesive is adjusted, allowing the adhesive to penetrate along the through-holes to the space between the baffle and the bottom of the battery cell, and to distribute evenly. This adheres and fixes the baffle to the bottom of the battery cell, ensuring the strength of the battery cell's tail end, avoiding excessive local pressure, and preventing dents in the aluminum-plastic film.

[0008] In some optional implementations, a first injection cavity is formed between the baffle and the bottom frame. Several ribs extend from the baffle towards the bottom frame, with the extended ends of the ribs connected to the bottom frame. An adhesive passage hole is provided through the rib along the length of the baffle, and the first injection cavity communicates with both the adhesive passage hole and the adhesive penetration hole. Adding several ribs along the length of the baffle buffers the flow of adhesive. Combined with the adhesive passage hole, it can also change the flow direction of the adhesive, disperse the kinetic energy of the adhesive, and reduce the impact of the adhesive on the aluminum-plastic film of the battery cell. Simultaneously, the baffle and adhesive penetration hole further reduce the compression of the aluminum-plastic film by the adhesive, providing multi-directional protection for the aluminum-plastic film and improving the reliability and stability of the battery.

[0009] In some optional implementations, a boss extends from the bottom frame opposite to the battery cell towards the battery cell. The two opposite ends of the boss are connected to the first side frame and the second side frame, respectively, and the baffle is disposed on the boss. This boss design limits the baffle's position in the thickness direction of the battery cell, ensuring the stability of the baffle during the glue injection process.

[0010] In some alternative implementations, the opposite ends of the baffle are connected to the first side frame and the second side frame with a gap;

[0011] Along the width direction of the battery cell, the length of the baffle is greater than the width of the battery cell. Designing the baffle to be longer than the width of the battery cell ensures that the baffle completely covers the area at the bottom of the battery cell that may be impacted by adhesive, providing comprehensive protection for the battery cell.

[0012] In some alternative implementations, the top surface of the baffle does not exceed the top surface of the frame structure along the thickness direction of the battery cell. Designing the height of the baffle to be no higher than the top surface of the frame structure ensures the baffle's blocking function without affecting the overall frame structure and injection molding process due to excessive height.

[0013] In some alternative implementations, a plurality of glue-permeating holes are provided, and the plurality of glue-permeating holes are equally spaced along the length direction of the baffle.

[0014] In some alternative implementations, the glue penetration holes are arranged along the central axis of the baffle;

[0015] Alternatively, the glue penetration holes are provided along the top surface of the baffle.

[0016] In some alternative implementations, several of the bone positions are equally spaced along the length of the baffle;

[0017] The adhesive passage is provided along the central axis of the bone position;

[0018] Alternatively, the adhesive passage is provided along the top surface of the bone.

[0019] In some optional implementations, a plurality of first protrusions extend from the inner wall of the first side frame toward the battery cell, and the plurality of first protrusions are equally spaced along the length of the first side frame. The design of the first protrusions strengthens the bonding effect between the adhesive and the first side frame, so that the adhesive forms a more solid connection structure after curing, and further enables the adhesive to fit better with the first side frame, preventing the adhesive from separating from the first side frame, and ensuring the reliability and stability of the adhesive.

[0020] And / or, a plurality of second protrusions extend from the inner wall of the second side frame toward the battery cell, and the plurality of second protrusions are equally spaced along the length of the second side frame. The design of the second protrusions strengthens the bonding between the adhesive and the second side frame, so that the adhesive forms a more robust connection structure after curing, further enabling better fitting between the adhesive and the second side frame, preventing separation between the adhesive and the second side frame, and ensuring the reliability and stability of the adhesive application.

[0021] Secondly, this utility model provides a pouch battery, including a battery cell and a frame structure as described in any of the above claims. The battery cell is housed within the cavity of the frame structure, and the bottom of the battery cell is in contact with the baffle. By employing the frame structure described above, this pouch battery effectively reduces the pressure of the adhesive on the aluminum-plastic film of the battery cell during low-pressure adhesive injection, lowering the risk of the aluminum-plastic film denting and thus better protecting the internal structure of the battery cell.

[0022] In summary, this utility model has at least the following advantages:

[0023] The soft-pack battery frame structure provided by this utility model uses a baffle at the bottom edge of the frame structure to block the injected adhesive, thereby buffering the direct impact of the adhesive on the aluminum-plastic film of the battery cell during injection. By setting adhesive penetration holes on the baffle, the flow rate of the adhesive is adjusted so that the adhesive is evenly distributed, avoiding excessive local pressure and thus preventing dents in the aluminum-plastic film.

[0024] The soft-pack battery provided by this utility model, by adopting the above-described adhesive frame structure, effectively reduces the compression of the aluminum-plastic film of the battery cell by the adhesive during low-pressure adhesive injection, reduces the risk of aluminum-plastic film dent, and thus better protects the internal structure of the battery cell.

[0025] The above description is merely an overview of the technical solutions of the present utility model embodiments. In order to better understand the technical means of the present utility model embodiments and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model embodiments more obvious and understandable, specific embodiments of the present utility model are described below. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the frame structure of a soft-pack battery provided in an embodiment of the present invention.

[0027] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the diagram.

[0028] Figure 3 for Figure 1 Enlarged schematic diagram of part B in the diagram.

[0029] Figure 4 This is a schematic diagram of the structure of a soft-pack battery provided in an embodiment of the present invention.

[0030] Figure 5 for Figure 4 Enlarged schematic diagram of part C in the diagram.

[0031] Marked in the image:

[0032] 10. Top border;

[0033] 20. Bottom border; 21. Boss;

[0034] 30. First side frame; 31. First protrusion; 32. First injection hole;

[0035] 40. Second side frame; 41. Second protrusion; 42. Second injection hole;

[0036] 50. Baffle; 51. Adhesive infiltration hole; 52. Bone position; 53. Adhesive passage hole;

[0037] 60. Battery cells;

[0038] 70. Glue frame lock lugs. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0041] This utility model embodiment aims to solve the problems in the prior art where there is a gap between the aluminum-plastic film at the bottom of the battery cell and the core, and the aluminum-plastic film is soft, which makes it easy for the aluminum-plastic film to dent under the action of injection pressure and speed during low-pressure glue injection, thus damaging the internal structure of the battery cell and affecting battery performance and safety. It provides a plastic frame structure for a soft-pack battery.

[0042] Please see Figures 1-3 The present invention provides a plastic frame structure for a soft-pack battery.

[0043] In this embodiment, the plastic frame structure of the soft-pack battery is mainly used to accommodate the battery cell 60 and to fix the battery cell 60 in place.

[0044] The frame structure of the soft-pack battery mainly includes a top frame 10 and a bottom frame 20 arranged opposite to each other, as well as a first side frame 30 and a second side frame 40 arranged opposite to each other. The top frame 10, the first side frame 30, the bottom frame 20 and the second side frame 40 are connected end to end to form a cavity for accommodating the battery cell 60. The bottom frame 20 is arranged opposite to the bottom of the battery cell 60. A baffle 50 is provided on the side of the bottom frame 20 opposite to the battery cell 60. The baffle 50 is arranged parallel to the bottom frame 20. An adhesive penetration hole 51 is provided on the baffle 50 along the thickness direction of the baffle 50.

[0045] In this embodiment, the structure of the frame can also be understood as follows: the first side frame 30 and the second side frame 40 have the same structure and are symmetrically arranged; the two opposite ends of the top frame 10 are integrally connected to the first ends of the first side frame 30 and the second side frame 40, respectively; the two opposite ends of the second side frame 40 are integrally connected to the second ends of the first side frame 30 and the second side frame 40, respectively, thereby forming a cavity for accommodating the battery cell 60; the top of the battery cell 60, which is accommodated in the cavity, is arranged opposite to the top frame 10; the bottom of the battery cell 60 is arranged opposite to the bottom frame 20; and the opposite side walls of the battery cell 60 are arranged opposite to the first side frame 30 and the second side frame 40, respectively.

[0046] A baffle 50 is provided on the opposite side of the bottom frame 20 to the battery cell 60 and is in contact with the bottom of the battery cell 60. An adhesive penetration hole 51 is provided on the baffle 50 along the thickness direction of the baffle 50, so that the adhesive can penetrate through the adhesive penetration hole 51 to the bottom of the baffle 50 and the battery cell 60 and be evenly distributed, thereby sticking and fixing the baffle 50 to the bottom of the battery cell 60, ensuring the strength of the tail of the battery cell 60, avoiding excessive local pressure, and thus preventing the aluminum-plastic film from being dented.

[0047] The soft-pack battery frame structure provided in this embodiment uses a baffle 50 at the bottom edge 20 of the frame structure to block the injected adhesive, thereby buffering the direct impact of the adhesive on the aluminum-plastic film of the cell 60 during the injection process. The baffle 50 is provided with an adhesive penetration hole 51 to adjust the flow rate of the adhesive, so that the adhesive is evenly distributed, avoiding excessive local pressure, and thus preventing dents from appearing on the aluminum-plastic film.

[0048] This embodiment is a preferred embodiment, and the number and location of the glue penetration holes 51 are limited.

[0049] Specifically, a plurality of glue penetration holes 51 are provided, and the plurality of glue penetration holes 51 are equally spaced along the length direction of the baffle 50. This ensures that the glue penetrates evenly from the glue penetration holes 51 to the bottom of the baffle 50 and the battery cell 60, and is evenly distributed, further ensuring the reliability and stability of the bonding between the baffle 50 and the bottom of the battery cell 60.

[0050] In this preferred embodiment, the glue penetration hole 51 is arranged along the central axis of the baffle 50.

[0051] That is, along the length of the baffle 50, the central axis of the baffle 50 coincides with the diameter of the glue penetration hole 51.

[0052] In some alternative embodiments, the glue penetration hole 51 is provided along the top surface of the baffle 50.

[0053] That is, the glue injection hole 51 provided along the top surface of the baffle 50 is in the shape of an arc notch, and the diameter of the top surface of the baffle 50 coincides with that of the glue injection hole 51.

[0054] In this embodiment, the position of the central axis of the glue penetration hole 51 can be adjusted according to the actual design.

[0055] In this preferred embodiment, a first glue injection cavity is formed between the baffle 50 and the bottom frame 20. Several bone positions 52 extend from the opposite side of the baffle 50 to the bottom frame 20. The extended ends of the bone positions 52 are connected to the bottom frame 20. A glue passage hole 53 is provided on the bone position 52 along the length direction of the baffle 50, penetrating the bone position 52. The first glue injection cavity is connected to the glue passage hole 53 and the glue penetration hole 51 respectively.

[0056] In this embodiment, by adding several baffles 52 along the length of the baffle 50, the flow rate of the adhesive can be buffered. Combined with the adhesive perforation holes, the flow direction of the adhesive can also be changed, dispersing its kinetic energy and reducing the impact of the adhesive on the aluminum-plastic film of the battery cell. Simultaneously, the baffle and adhesive perforation holes further reduce the compression of the aluminum-plastic film by the adhesive, providing multi-directional protection for the aluminum-plastic film and improving the reliability and stability of the battery.

[0057] This embodiment is a preferred embodiment, and the location of the bone position 52 is limited.

[0058] Specifically, several bone positions 52 are evenly spaced along the length of the baffle 50 to further buffer the flow rate of the adhesive.

[0059] In this preferred embodiment, the adhesive hole 53 is arranged along the central axis of the bone position 52.

[0060] That is, along the length of the baffle 50, the central axis of the baffle 50 is perpendicular to the diameter of the glue passage hole 53. Alternatively, it can be understood that the central axis of the baffle 50 is parallel to the central axis of the glue passage hole 53.

[0061] In some alternative embodiments, the adhesive passage 53 is provided along the top surface of the bone position 52.

[0062] That is, the glue passage hole 53 is located on the top surface of the bone position 52 facing the top surface of the glue frame structure, and the glue passage hole 53 along the top surface of the bone position 52 is in the shape of an arc notch.

[0063] In this embodiment, the position of the central axis of the glue passage 53 can be adjusted according to the actual design.

[0064] In addition, along the thickness direction of the cell 60, the thickness of the rib 52 can be less than the thickness of the baffle 50, or it can be equal to the thickness of the baffle 50.

[0065] When the thickness of the bone position 52 is less than the thickness of the baffle 50, the glue passage hole 53 does not need to be provided, and the glue can still flow.

[0066] When the thickness of the bone position 52 is equal to the thickness of the baffle 50, the shape of the bone position 52 can be set as a trapezoid. In this case, the glue flow can be achieved without setting the glue passage 53.

[0067] In addition, in this embodiment, a second injection cavity is formed between the first side frame 30 and the side wall of the battery cell 60, a third injection cavity is formed between the second side frame 40 and the side wall of the battery cell 60, and a fourth injection cavity is formed between the top frame 10 and the top of the battery cell 60. The second and third injection cavities are both connected to the first and fourth injection cavities.

[0068] It can be seen that the two ends of the baffle 50 are connected to the first side frame 30 and the second side frame 40 with gaps, so that the glue in the second glue injection cavity and the third glue injection cavity can be injected into the first glue injection cavity and flow along the first glue injection cavity through the glue penetration hole 51.

[0069] This embodiment is a preferred embodiment, and the fixing structure of the baffle 50 has been optimized.

[0070] Specifically, a boss 21 extends from the bottom frame 20 toward the battery cell 60, with the opposite ends of the boss 21 connected to the first side frame 30 and the second side frame 40 respectively, and a baffle 50 is provided on the boss 21.

[0071] Preferably, the length of the baffle 50 is greater than the width of the battery cell 60 along the width direction of the battery cell 60.

[0072] By designing the length of the baffle 50 to be greater than the width of the battery cell 60, it is possible to ensure that the baffle 50 completely covers the area at the bottom of the battery cell 60 that may be impacted by the adhesive, thus providing comprehensive protection for the battery cell 60.

[0073] In some alternative implementations, the top surface of the baffle 50 does not exceed the top surface of the frame structure along the thickness direction of the cell 60.

[0074] The height of the baffle 50 is designed to be no higher than the top surface of the frame structure, which ensures the blocking function of the baffle 50 without affecting the overall structure of the frame and the implementation of the injection molding process due to excessive height.

[0075] This embodiment is a preferred embodiment, and the structure of the first side frame 30 and the second side frame 40 has been optimized.

[0076] In this embodiment, a plurality of first protrusions 31 extend from the inner wall of the first side frame 30 toward the battery cell 60, and the plurality of first protrusions 31 are equally spaced along the length direction of the first side frame 30.

[0077] Preferably, the cross-section of the first protrusion 31 is T-shaped along the thickness direction of the cell 60. The shape design of the first protrusion 31 strengthens the bonding between the adhesive and the first side frame 30, so that the adhesive forms a stronger connection structure after curing, thereby improving the overall sealing and stability of the battery.

[0078] In addition, along the width direction of the battery cell 60, a plurality of first glue injection holes 32 penetrating the first side frame 30 are provided on the first side frame 30, and the plurality of first glue injection holes 32 are equally spaced along the length direction of the first side frame 30.

[0079] Preferably, the first injection hole 32 and the first protrusion 31 are misaligned, so that the glue can be injected into the second injection cavity through the first injection hole 32. At the same time, in conjunction with the first protrusion 31, the glue can be better fitted with the first side frame 30, preventing the glue from separating from the first side frame 30, and ensuring the reliability and stability of the glue injection.

[0080] In some alternative embodiments, a plurality of second protrusions 41 extend from the inner wall of the second side frame 40 toward the cell 60, and the plurality of second protrusions 41 are equally spaced along the length direction of the second side frame 40.

[0081] Preferably, the cross-section of the second protrusion 41 is T-shaped along the thickness direction of the cell 60. The shape design of the second protrusion 41 strengthens the bonding between the adhesive and the second side frame 40, so that the adhesive forms a stronger connection structure after curing, thereby improving the overall sealing and stability of the battery.

[0082] In addition, along the width direction of the cell 60, a plurality of second glue injection holes 42 are provided on the second side frame 40, and the plurality of second glue injection holes 42 are equally spaced along the length direction of the second side frame 40.

[0083] Preferably, the second injection hole 42 and the second protrusion 41 are misaligned, which enables the glue to be injected into the third injection cavity through the second injection hole 42. At the same time, in conjunction with the second protrusion 41, the glue can be better fitted with the second side frame 40, preventing the glue from separating from the second side frame 40 and ensuring the reliability and stability of the glue injection.

[0084] Please see Figures 4-5 This utility model embodiment also provides a soft-pack battery.

[0085] This embodiment provides a soft-pack battery, including a cell 60 and a frame structure as described in any of the above embodiments. The cell 60 is housed in the cavity of the frame structure, and the bottom of the cell 60 is in contact with the baffle 50.

[0086] Specifically, the top of the battery cell 60 housed in the cavity is positioned opposite to the top frame 10, the bottom of the battery cell 60 is positioned opposite to the bottom frame 20, and the opposite side walls of the battery cell 60 are positioned opposite to the first side frame 30 and the second side frame 40, respectively.

[0087] A baffle 50 is provided on the opposite side of the bottom frame 20 to the battery cell 60 and is in contact with the bottom of the battery cell 60. An adhesive penetration hole 51 is provided on the baffle 50 along the thickness direction of the baffle 50, so that the adhesive can penetrate through the adhesive penetration hole 51 to the bottom of the baffle 50 and the battery cell 60 and be evenly distributed, thereby sticking and fixing the baffle 50 to the bottom of the battery cell 60, ensuring the strength of the tail of the battery cell 60, avoiding excessive local pressure, and thus preventing the aluminum-plastic film from being dented.

[0088] In addition, in this embodiment, a plurality of frame locking lugs 70 are provided around the perimeter of the frame structure, so that the soft-pack battery is fixed to the host through the frame locking lugs 70.

[0089] Therefore, the soft-pack battery provided in this embodiment, by using the frame structure described in the above embodiment to fix the cell 60, effectively reduces the pressure of the adhesive on the aluminum-plastic film of the cell 60 during low-pressure adhesive injection of the soft-pack battery, reduces the risk of aluminum-plastic film dent, and thus better protects the internal structure of the cell.

[0090] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0091] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0092] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0093] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0094] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A frame structure for a pouch battery, used to accommodate a battery cell (60), characterized in that, The device includes a top frame (10) and a bottom frame (20) arranged opposite to each other, and a first side frame (30) and a second side frame (40) arranged opposite to each other. The top frame (10), the first side frame (30), the bottom frame (20) and the second side frame (40) are connected end to end to form a cavity for accommodating the battery cell (60). The bottom frame (20) is arranged opposite to the bottom of the battery cell (60). A baffle (50) is provided on the side of the bottom frame (20) opposite to the battery cell (60). The baffle (50) is arranged parallel to the bottom frame (20). An adhesive penetration hole (51) is provided on the baffle (50) along the thickness direction of the baffle (50).

2. The frame structure of a soft-pack battery according to claim 1, characterized in that, A first glue injection cavity is formed between the baffle (50) and the bottom frame (20). A plurality of bone positions (52) extend from the baffle (50) opposite to the bottom frame (20) in the direction of the bottom frame (20). The extended ends of the bone positions (52) are connected to the bottom frame (20). A glue passage hole (53) is provided on the bone position (52) along the length direction of the baffle (50) and passes through the bone position (52). The first glue injection cavity is connected to the glue passage hole (53) and the glue penetration hole (51) respectively.

3. The frame structure of a soft-pack battery according to claim 1, characterized in that, The bottom frame (20) extends a boss (21) in the direction of the battery cell (60) from the opposite side of the bottom frame (20). The opposite ends of the boss (21) are connected to the first side frame (30) and the second side frame (40) respectively. The baffle (50) is disposed on the boss (21).

4. The frame structure of a soft-pack battery according to claim 1, characterized in that, The two opposite ends of the baffle (50) are gap-connected to the first side frame (30) and the second side frame (40); Along the width direction of the battery cell (60), the length of the baffle (50) is greater than the width of the battery cell (60).

5. The frame structure of a soft-pack battery according to claim 1, characterized in that, Along the thickness direction of the battery cell (60), the top surface of the baffle (50) does not exceed the top surface of the frame structure.

6. The frame structure of a soft-pack battery according to claim 1, characterized in that, The adhesive penetration holes (51) are provided in a plurality of manner, and the plurality of adhesive penetration holes (51) are arranged at equal intervals along the length direction of the baffle (50).

7. The frame structure of a soft-pack battery according to claim 1, characterized in that, The glue penetration hole (51) is arranged along the central axis of the baffle (50); Alternatively, the glue penetration hole (51) is provided along the top surface of the baffle (50).

8. The frame structure of a soft-pack battery according to claim 2, characterized in that, Several of the bone positions (52) are equally spaced along the length direction of the baffle (50); The adhesive passage (53) is provided along the central axis of the bone position (52); Alternatively, the glue passage (53) is provided along the top surface of the bone position (52).

9. The frame structure of a soft-pack battery according to claim 1, characterized in that, A plurality of first protrusions (31) extend from the inner wall of the first side frame (30) toward the battery cell (60), and the plurality of first protrusions (31) are equally spaced along the length direction of the first side frame (30). And / or, a plurality of second protrusions (41) extend from the inner wall of the second side frame (40) toward the cell (60), and the plurality of second protrusions (41) are equally spaced along the length direction of the second side frame (40).

10. A pouch battery, characterized in that, Includes a battery cell (60) and a frame structure as described in any one of claims 1-9, wherein the battery cell (60) is housed in the cavity of the frame structure and the bottom of the battery cell (60) is in contact with the baffle (50).

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