Battery cell module and battery pack

Abstract

The utility model provides a battery cell module and a battery pack, and relates to the technical field of batteries. The battery cell module comprises a plurality of battery cells and a fixing part, the plurality of battery cells are divided into a plurality of columns arranged along a first direction, and each column comprises a plurality of battery cells arranged along a second direction; and the fixing pieces are arranged between two adjacent rows of battery cells, and are respectively clamped and matched with the battery cells positioned on two sides of the fixing pieces along the first direction. According to the battery cell module provided by the invention, the fixing piece can play a role in supporting the battery cell, so that the stability of connection between the battery cell and the shell assembly of the battery pack is improved, meanwhile, the structural strength of the battery pack is improved, and safe and stable operation of the battery pack is ensured.

Description

Technical Field

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

[0002] The battery pack is an important component of a vehicle. It typically contains multiple battery cells. In existing technologies, these cells are stacked into modular units and then bonded to the battery pack casing using structural adhesive.

[0003] However, fixing the battery cells to the casing by pasting results in poor cell stability and low overall rigidity of the battery pack. Utility Model Content

[0004] This application provides a cell module and a battery pack, which helps to improve the stability of the cell and the rigidity of the battery pack.

[0005] On one hand, this application provides a battery cell module, including: a plurality of battery cells, the plurality of battery cells being arranged in multiple columns along a first direction, each column including a plurality of battery cells arranged along a second direction; and a fixing member disposed between two adjacent columns of battery cells, the fixing member engaging with battery cells located on both sides of the fixing member along the first direction.

[0006] In one possible implementation, the fastener includes: a partition located between two adjacent rows of cells to separate the two adjacent rows of cells; and a snap-fit ​​structure disposed on both sides of the partition along a first direction for snap-fitting with the cells on the corresponding side.

[0007] In one possible implementation, the snap-fit ​​structure includes: a first snap-fit ​​portion disposed at the top of the partition and pressing against the top wall of the battery cell; and a second snap-fit ​​portion disposed at the bottom of the partition, with the bottom wall of the battery cell supported by the second snap-fit ​​portion.

[0008] In one possible implementation, the top wall of the battery cell is provided with electrodes, and the first snap-fit ​​portion is offset from the electrodes.

[0009] In one possible implementation, the width of the second snap-fit ​​portion along the first direction is less than 1 / 2 of the thickness of the cell along the first direction, so that the two second snap-fit ​​portions on both sides of the same row of cells together define an adhesive groove with the bottom wall of the cell. The adhesive groove is used to set the fixing adhesive, and the cell and the fixing member are connected to the housing assembly of the battery pack through the fixing adhesive.

[0010] In one possible implementation, the partition includes a first plate and a second plate that are opposite to and connected in a third direction, a first snap-fit ​​portion is formed at the end of the first plate that is away from the second plate, and a second snap-fit ​​portion is formed at the end of the second plate that is away from the first plate.

[0011] In one possible implementation, the snap-fit ​​structure is connected to the battery cell via structural adhesive.

[0012] In one possible implementation, at least one of the separator and the snap-fit ​​structure has an adhesive overflow groove on its surface facing the battery cell.

[0013] In one possible implementation, the fastener is at least one of a metal part or a polymer material part.

[0014] On the other hand, this application also provides a battery pack, including: a housing assembly having a receiving cavity; any of the above-mentioned cell modules, the cell modules being disposed in the receiving cavity, and at least one of the cell and the fixing member being connected to the housing assembly.

[0015] The battery cell module and battery pack provided in this application include a battery cell module with multiple battery cells and fixing components. The multiple battery cells are arranged in multiple columns along a first direction, and each column of cells is arranged along a second direction, perpendicular to both directions. Fixing components are installed between adjacent columns of cells, engaging with each other. These fixing components limit the position of the cells and protect them, preventing damage to the cells when the battery pack is subjected to impact or strong shaking, thereby improving the stability and safety of the battery pack. During battery pack assembly, each column of cells is fixed to the battery pack housing assembly by adhesive bonding. The fixing components between adjacent columns of cells provide support, enhancing the structural strength of the battery cell module and providing overall rigidity and stability to the battery pack while ensuring a stable connection between the cells and the housing assembly. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] Figure 1 This is a schematic diagram of the structure of the battery cell module provided in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the battery cell in the battery cell module provided in the embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the fixing component of the battery cell module provided in the embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the connection between the fixing member and the battery cell in the battery cell module provided in the embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the structure of the housing assembly of the battery pack provided in an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100-cell module;

[0024] 110 - Cell; 111 - Electrode;

[0025] 120 - Fastener;

[0026] 121-Partition; 1211-First plate; 1212-Second plate;

[0027] 122-Snap-fit ​​structure; 1221-First snap-fit ​​part; 1222-Second snap-fit ​​part; 1222a-Adhesive overflow groove;

[0028] 130 - Dispensing groove;

[0029] 10 - Housing assembly;

[0030] 11-Receiving cavity.

[0031] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0033] As shown in the background section, the battery pack is an important component of a vehicle. The battery pack typically contains multiple cells. In the prior art, multiple cells are stacked into a module unit and then attached to the battery pack housing using structural adhesive.

[0034] However, fixing the battery cells to the casing by pasting results in poor cell stability and low overall rigidity of the battery pack.

[0035] To address the aforementioned technical problems, this application provides a cell module and a battery pack. The cell module includes multiple cells and fixing components. The multiple cells are arranged in multiple columns along a first direction, and each column of cells is arranged along a second direction, perpendicular to both directions. Fixing components are positioned between adjacent columns of cells, engaging with each other. These fixing components limit the position of the cells, protecting them from damage during impacts or strong shaking, thus improving the stability and safety of the battery pack. During battery pack assembly, each column of cells is glued to the battery pack's housing assembly. The fixing components between adjacent columns support the cells, enhancing the structural strength of the cell module and providing overall rigidity and stability while ensuring a stable connection between the cells and the housing assembly.

[0036] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings:

[0037] It should be noted that the cell module provided in this application embodiment can be applied to various different battery packs.

[0038] See Figure 1 , Figure 2 and Figure 5 As shown, the battery cell module 100 of this application embodiment includes: a plurality of battery cells 110 and a fixing member 120. The plurality of battery cells 110 are divided into multiple columns arranged along a first direction, and each column includes a plurality of battery cells 110 arranged along a second direction. The fixing member 120 is disposed between two adjacent columns of battery cells 110, and the fixing member 120 is respectively engaged with the battery cells 110 located on both sides of the fixing member 120 along the first direction.

[0039] In the embodiments of this application, Figure 2The X direction is the first direction, and the Y direction is the second direction. Multiple cells 110 in each column are spaced apart along the second direction, and multiple columns of cells 110 are spaced apart along the first direction. Fixing members 120 are disposed between two adjacent columns of cells 110 and are snapped together with the cells 110. When assembling the battery pack, the cells 110 are fixedly connected to the bottom of the battery pack housing assembly 10 by structural adhesive. Fixing members 120 are disposed between two adjacent columns of cells 110. The fixing members 120 can be workpieces with high hardness such as steel. This application embodiment does not limit this. In this way, compared with the prior art that only uses structural adhesive to fix the battery cell 110, the fixing member 120 between the two rows of battery cells 110 in this embodiment can play the role of supporting the battery cell 110, which is beneficial to improving the stability of the battery cell 110. When the battery pack is impacted or shakes violently, the fixing member 120 can support the battery cell 110, reduce the shaking of the battery cell 110, and at the same time avoid the collision between adjacent rows of battery cells 110, which may cause safety hazards. This helps to improve the overall structural strength of the battery pack and ensure the safety and impact resistance of the battery pack.

[0040] Furthermore, the fixing member 120 can be at least partially bonded to the two adjacent rows of battery cells 110 by structural adhesive, which can improve the strength of the connection between the battery cell 110 and the fixing member 120 and help improve the stability of the battery cell 110. At the same time, the fixing member 120 can also be bonded to the housing assembly 10 by structural adhesive, which can further improve the overall structural strength of the battery pack and help strengthen the impact resistance and structural rigidity of the battery pack. Of course, the connection method between the fixing member 120 and the battery cell 110 and between the fixing member 120 and the housing assembly 10 is not limited in this application embodiment, as long as it can play the role of supporting the battery cell 110 and strengthening the structural strength.

[0041] See also some of the possible implementation methods. Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the fastener 120 in this embodiment includes a partition 121 and a snap-fit ​​structure 122. The partition 121 is located between two adjacent rows of cells 110 to separate the two adjacent rows of cells 110. The snap-fit ​​structure 122 is disposed on both sides of the partition 121 along the first direction and is used to snap-fit ​​with the corresponding cells 110.

[0042] In specific implementation, the snap-fit ​​structure 122 and the separator 121 are integrally set to ensure the structural strength of the fastener 120. This application embodiment does not limit this. The separator 121 is located between two adjacent rows of cells 110 and can be bonded to the cells 110 with structural adhesive. It can separate the two rows of cells 110 and avoid problems such as short circuits caused by contact between the two rows of cells 110. At the same time, the separator 121 can also fill the gap between two adjacent rows of cells 110 and play a supporting role for the cells 110. This helps to improve the structural strength of the battery pack and ensure that the battery pack can operate safely and stably. If the thickness of the separator 121 is too thin, the structural strength may be insufficient and it may be difficult to provide support. If the thickness of the separator 121 is too thick, the volume and weight of the battery module 100 may be too large. Therefore, the thickness of the separator 121 along the first direction can be set to a range of 0.1mm-30mm. For example, the thickness of the separator 121 can be 0.1mm, 1mm, 5mm, 10mm, 15mm, 20mm or 30mm. This application embodiment does not limit this. The thickness of the separator 121 can be reasonably selected within the above range as needed.

[0043] In addition, the snap-fit ​​structure 122 is provided on both sides of the partition 121 along the first direction to snap-fit ​​with the corresponding two rows of battery cells 110. On the one hand, the snap-fit ​​structure 122 can fix the partition 121 to the side of the battery cell 110. On the other hand, the two snap-fit ​​structures 122 together limit the position of the same row of battery cells 110, which helps to improve the stability of the battery cell 110 and prevent the battery cell 110 from shifting.

[0044] See also some of the possible implementation methods. Figures 1 to 5 As shown, the snap-fit ​​structure 122 of this application embodiment includes: a first snap-fit ​​part 1221 and a second snap-fit ​​part 1222, wherein the first snap-fit ​​part 1221 is disposed at the top of the partition 121 and presses against the top wall of the battery cell 110; the second snap-fit ​​part 1222 is disposed at the bottom of the partition 121, and the bottom wall of the battery cell 110 is supported by the second snap-fit ​​part 1222.

[0045] In some embodiments, the fastener 120 can be in the shape of an "I", that is, the snap-fit ​​structure 122 is set as a first snap-fit ​​part 1221 and a second snap-fit ​​part 1222, and the battery cell 110 is disposed between the first snap-fit ​​part 1221 and the second snap-fit ​​part 1222, thereby ensuring that the position of the support plate corresponds exactly to the side surface of the battery cell 110, which can play a limiting role. At the same time, the battery cell 110 is connected to the bottom of the housing assembly 10 by structural adhesive, and the second snap-fit ​​part 1222 contacts the bottom of the housing assembly 10. The connection can be made by structural adhesive to improve the stability of the fastener 120. Alternatively, it can only abut against the housing assembly 10. This application embodiment does not limit this. It should be noted that when the second snap-fit ​​part 1222 only abuts against the housing assembly 10, the thickness of the structural adhesive between the bottom of the battery cell 110 and the housing assembly 10 should be consistent with the thickness of the second snap-fit ​​part 1222 to ensure that the bottom of the battery cell module 100 is flat, which is beneficial to ensuring the stability of the connection between the battery cell module 100 and the housing assembly 10 of the battery pack. The thickness of the structural adhesive can range from 0.5mm to 5mm. For example, the thickness of the structural adhesive can be 0.5mm, 1mm, 2mm, 3mm, 4mm or 5mm. Of course, this application embodiment does not limit this. The thickness of the structural adhesive can be reasonably selected within the above range according to actual needs.

[0046] See also some of the possible implementation methods. Figure 1 , Figure 4 and Figure 5 As shown, the top wall of the battery cell 110 in this embodiment of the application is provided with an electrode 111, and the first snap-fit ​​portion 1221 is offset from the electrode 111.

[0047] It is understandable that, since the top of the cell 110 is provided with an electrode 111, the electrodes 111 of two adjacent cells 110 can be electrically connected through a connector to make the battery module form a whole. The first snap-fit ​​part 1221 needs to be staggered from the electrode 111 to avoid affecting the connection between the electrodes 111 on the two cells 110.

[0048] See also some of the possible implementation methods. Figure 1 , Figure 4 and Figure 5 As shown, in this embodiment of the application, the width of the second snap-fit ​​portion 1222 along the first direction is less than 1 / 2 of the thickness of the cell 110 along the first direction, so that the two second snap-fit ​​portions 1222 on both sides of the same row of cells 110 together with the bottom wall of the cell 110 define the glue groove 130. The glue groove is used to set the fixing glue, and the cell 110 and the fixing member 120 are connected to the housing assembly 10 of the battery pack through the fixing glue.

[0049] It should be noted that the width of the second snap-fit ​​portion 1222 along the first direction should be less than 1 / 2 of the thickness of the battery cell 110 along the first direction, so as to avoid the second snap-fit ​​portions 1222 of two adjacent fasteners 120 intersecting. At the same time, a glue groove is reserved between the battery cell 110 and the housing assembly 10. The glue groove is filled with fixing glue to bond the bottom of the battery cell 110 to the housing assembly 10. The second snap-fit ​​portion 1222 can also be connected to the housing assembly 10 by fixing glue. The fixing glue can be structural glue, which has the advantages of aging resistance, fatigue resistance and corrosion resistance. Structural glue has high strength and can withstand large loads, which can ensure the stability of the connection between the battery cell 110 and the fasteners 120 and the housing assembly 10. This application embodiment does not limit this, as long as the battery cell 110 and the housing assembly 10 can be stably connected.

[0050] The width of the second snap-fit ​​portion 1222 can be in the range of 0.1mm-100mm. For example, the width of the second snap-fit ​​portion 1222 can be 0.1mm, 1mm, 10mm, 20mm, 40mm, 65mm or 100mm. Of course, this embodiment does not limit this. The width of the second snap-fit ​​portion 1222 can be reasonably selected within the above range according to actual needs.

[0051] See also some of the possible implementation methods. Figures 1 to 5 As shown, the partition 121 in this embodiment includes a first plate 1211 and a second plate 1212 that are opposite to and connected in a third direction. A first snap-fit ​​portion 1221 is formed at the end of the first plate 1211 that is away from the second plate 1212, and a second snap-fit ​​portion 1222 is formed at the end of the second plate that is away from the first plate 1211.

[0052] In some embodiments, Figure 2 The Z-direction is the third direction. The fixing component 120 can be divided into two parts. The first plate 1211 and the second plate 1212 correspond to the two shoulders of the battery cell 110 along the third direction. The middle part of the battery cell 110 is relatively stable. Therefore, a certain gap can be left between the first plate 1211 and the second plate 1212. Structural adhesive is filled between the gaps so that the adjacent two rows of battery cells 110 are partially connected and separated by structural adhesive. This can save the material of the fixing component 120, which is conducive to saving the cost of the fixing component 120 and reducing the weight of the battery pack.

[0053] When assembling the battery module, the cell 110 can be connected to the first plate 1211 to form a basic shape. Then, a certain amount of structural adhesive is filled between two adjacent rows of cells 110. Finally, the second plate 1212 is inserted between two adjacent rows of cells 110 and connected by structural adhesive, thereby completing the assembly of the cell module 100. While ensuring the supporting role of the fixing component 120 on the cell 110, the weight of the battery pack is further reduced, saving the production cost of the battery pack.

[0054] See also some of the possible implementation methods. Figure 1 As shown, in this embodiment of the application, the snap-fit ​​structure 122 is connected to the battery cell 110 by structural adhesive.

[0055] In practice, the snap-fit ​​structure 122 and the battery cell 110 can be bonded together with structural adhesive to improve the connection strength between the fastener 120 and the battery cell 110. This helps to improve the stability of the battery cell 110, strengthen the overall rigidity of the battery pack, thereby ensuring the safe and stable operation of the battery pack and improving the battery pack's impact resistance.

[0056] See also some of the possible implementation methods. Figures 1 to 5 As shown, at least one of the partition 121 and the snap-fit ​​structure 122 in this embodiment of the application has an overflow groove 1222a on the surface facing the battery cell 110.

[0057] It is understood that, depending on the location of the structural adhesive on the fastener 120, an overflow groove 1222a can be provided on at least one of the partition 121 and the snap-fit ​​structure 122. When the fastener 120 and the battery cell 110 are fixed with structural adhesive, excess structural adhesive can overflow through the overflow groove 1222a to ensure that there is enough structural adhesive to bond the fastener 120 and the battery cell 110 without excessive overflow of structural adhesive to the edge of the battery cell 110. If the snap-fit ​​structure 122 is also connected to the housing assembly 10 with structural adhesive, an overflow groove 1222a can also be provided on the surface of the snap-fit ​​structure 122 facing away from the battery cell 110 to ensure the stability of the connection between the snap-fit ​​structure 122 and the housing assembly 10. This application embodiment does not limit this.

[0058] See also some of the possible implementation methods. Figure 1 As shown, the fastener 120 in this embodiment is at least one of a metal part and a polymer material part.

[0059] In specific implementation, the fastener 120 can be a metal part or a polymer material part, as long as the rigidity of the fastener 120 meets the support requirements. In addition, the manufacturing process of the fastener 120 can include a variety of processes, such as extrusion, stamping, casting, injection molding, 3D printing, multi-part welding, and multi-part bonding. This application embodiment does not limit these processes.

[0060] Furthermore, the fastener 120 can be set as a solid structure to ensure the strength of the fastener 120. When the rigidity of the material of the fastener 120 is sufficient, the fastener 120 can also be set as a hollow structure with internal gaps to further reduce the weight of the fastener 120, save the production cost of the battery pack, and reduce the self-weight of the battery pack. This application embodiment does not impose any restrictions on this, as long as the fastener 120 can meet the structural strength requirements.

[0061] See Figure 1 and Figure 5 As shown, this application embodiment also provides a battery pack, including: a housing assembly 10 and any of the above-mentioned cell modules 100, wherein the housing assembly 10 has a receiving cavity 11; the cell module 100 is disposed in the receiving cavity 11, and at least one of the cell 110 and the fixing member 120 is connected to the housing assembly 10.

[0062] The structure and working principle of the battery cell module 100 have been described in detail in the above embodiments, and will not be repeated here.

[0063] In this embodiment, both the battery cell 110 and the fixing member 120 of the battery cell module 100 can be connected to the housing assembly 10 via structural adhesive. The fixing member 120 can maintain the stability of the battery cell 110 and support the housing assembly 10 in a third direction, further improving the rigidity of the battery pack. This is beneficial for ensuring the safe and stable operation of the battery pack, while also improving the battery pack's impact resistance and safety. It should be noted that the battery pack provided in this embodiment can be applied in different scenarios, including but not limited to being fixed on a vehicle to provide power to the vehicle.

[0064] In summary, the battery cell module 100 and battery pack provided in this application embodiment include a fixing member 120 and multiple rows of battery cells 110. The battery pack includes a housing assembly 10 and the battery cell module 100. The housing assembly 10 has a receiving cavity 11, and the battery cell module 100 is disposed in the receiving cavity 11. The fixing member 120 is disposed between two adjacent rows of battery cells 110, and the fixing member 120 is at least partially connected to the battery cells 110. The battery cells 110 are connected to the inner wall of the receiving cavity 11 by structural adhesive. In this way, compared with the battery cells 110 being fixed to the housing assembly 10 by adhesive, the fixing member 120 in this application embodiment, which is disposed between two rows of battery cells 110, can play the role of supporting and isolating the battery cells 110, preventing the battery cells 110 from being impacted when the battery pack is subjected to collision or violent shaking. At the same time, it can also improve the overall structural strength of the battery pack, which is conducive to ensuring the safe and stable operation of the battery pack and improving the collision resistance of the battery pack.

[0065] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or 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 the embodiments of this application according to the specific circumstances.

[0066] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0067] The terms "first," "second," "third," "fourth," etc. (if present) 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 of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0068] 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 include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0069] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0070] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0071] It is understood that, in the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0072] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0073] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. An electric cell module (100), characterized in that, The application relates to a battery cell module (100) comprising: a plurality of battery cells (110), the plurality of battery cells (110) being arranged in a plurality of columns along a first direction, each column comprising a plurality of battery cells (110) arranged along a second direction; a fixing member (120) arranged between two adjacent columns of battery cells (110), the fixing member (120) being in clamping engagement with the battery cells (110) located on both sides of the fixing member (120) along the first direction.

2. The electric cell module (100) according to claim 1, characterized in that The fixing member (120) comprises: a partition plate (121) located between two adjacent columns of battery cells (110) to separate the two adjacent columns of battery cells (110); a clamping structure (122) arranged on both sides of the partition plate (121) along the first direction, the clamping structure (122) being used for clamping engagement with the battery cells (110) on the corresponding side.

3. The electric cell module (100) according to claim 2, characterized in that The clamping structure (122) comprises: a first clamping part (1221) arranged at the top end of the partition plate (121) and in abutting engagement with the top wall of the battery cell (110); a second clamping part (1222) arranged at the bottom end of the partition plate (121), the bottom wall of the battery cell (110) being supported on the second clamping part (1222).

4. The electric cell module (100) according to claim 3, characterized in that The top wall of the battery cell (110) is provided with an electrode (111), and the first clamping part (1221) is offset from the electrode (111).

5. The electric cell module (100) according to claim 3, characterized in that The width of the second clamping part (1222) along the first direction is less than 1 / 2 of the thickness of the battery cell (110) along the first direction, so that the two second clamping parts (1222) on both sides of the battery cell (110) in the same column and the bottom wall of the battery cell (110) jointly define a glue groove (130) in which fixing glue is arranged, the battery cell (110) and the fixing member (120) being connected with a housing assembly (10) of a battery pack through the fixing glue.

6. The electric cell module (100) according to claim 3, characterized in that The partition plate (121) comprises a first plate body (1211) and a second plate body (1212) which are opposite and connected along the third direction, the first clamping part (1221) being formed at one end of the first plate body (1211) away from the second plate body (1212), and the second clamping part (1222) being formed at one end of the second plate body away from the first plate body (1211).

7. The electric cell module (100) according to any one of claims 2-6, characterized in that, The clamping structure (122) and the battery cell (110) are connected through structural glue.

8. The hinge mechanism of claim 7, wherein, At least one of the surfaces of the partition plate (121) and the clamping structure (122) facing the battery cell (110) is provided with a glue overflow groove (1222a).

9. The electric cell module (100) according to any one of claims 1-6, characterized in that, The fixing member (120) is at least one of a metal member and a high polymer material member.

10. A battery pack, characterized by, The application further relates to a battery pack (1) comprising: a housing assembly (10) having a receiving cavity (11); the battery cell module (100) according to any one of claims 1-9, the battery cell module (100) being arranged in the receiving cavity (11), and at least one of the battery cell (110) and the fixing member (120) being connected with the housing assembly (10).

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