Connection structure, single battery and battery pack

Abstract

This utility model relates to the field of battery technology, providing a connection structure, a single battery cell, and a battery pack. The connection structure includes a frame and a circuit board. The frame has a mounting cavity. A mounting notch communicating with the mounting cavity is formed on the frame. A first connecting portion is provided on the wall of the mounting notch. The circuit board is disposed within the mounting cavity. The circuit board has a second connecting portion extending outwards. The second connecting portion is located within the mounting notch and connects to the first connecting portion. This reduces the area of ​​the area where the circuit board is pressed against the frame, thereby reducing the difficulty of circuit board installation and improving circuit board installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a connection structure, a single cell, and a battery pack. Background Technology

[0002] In related technologies, for dual-cell single-cell batteries, the tabs of the two cell packs are first soldered to a circuit board, and then folded in half and inserted into a plastic frame. Current plastic frames typically have openings on the side and male clips on the side of the circuit board. The circuit board is then pushed into the plastic frame, and the male clips engage with the openings to achieve assembly between the circuit board and the plastic frame. However, this assembly method makes circuit board installation difficult and requires high precision in component dimensional tolerances. Utility Model Content

[0003] The embodiments of this utility model provide a connection structure, a single battery cell, and a battery pack, which can reduce the installation difficulty of the circuit board and at least partially solve the above-mentioned technical problems.

[0004] In a first aspect, embodiments of the present invention provide a connection structure, comprising:

[0005] A frame having a mounting cavity, wherein a mounting notch communicating with the mounting cavity is formed on the frame, and a first connecting portion is provided on the notch wall surface of the mounting notch;

[0006] A circuit board is disposed within the mounting cavity. The circuit board has an outwardly extending second connecting portion located within the mounting notch and connected to the first connecting portion.

[0007] In one embodiment, the frame includes:

[0008] First substrate;

[0009] The first sidewall and the second sidewall are spaced apart on opposite sides of the first substrate along a first direction, and the first substrate, the first sidewall and the second sidewall surround to form the mounting cavity;

[0010] The mounting notch is formed on the side of the first sidewall and / or the second sidewall away from the first substrate.

[0011] In one embodiment, the first connecting portion is spaced apart from the first substrate, and the second connecting portion is disposed between the first substrate and the first connecting portion.

[0012] In one embodiment, a guide surface is formed on the side of the first connecting portion away from the first substrate, the guide surface being inclined and facing the opening side of the mounting notch.

[0013] In one embodiment, the first substrate is provided with a clearance hole, and the circuit board is provided with an electrical connection position on the side facing the first substrate, the electrical connection position corresponding to the clearance hole.

[0014] In one embodiment, the frame further includes:

[0015] The second substrate is disposed at a distance from the first substrate;

[0016] The first frame and the second frame are both connected between the first substrate and the second substrate, and the first frame and the second frame are disposed at intervals on opposite sides of the first substrate along the second direction;

[0017] The first direction and the second direction are set at an angle.

[0018] In one embodiment, the first frame and / or the second frame are provided with injection holes.

[0019] Secondly, embodiments of this utility model provide a single-cell battery, comprising:

[0020] Core package, with electrode tabs;

[0021] As described above, the connection structure;

[0022] The core package is disposed within the frame, and the electrode tab is electrically connected to the circuit board.

[0023] In one embodiment, the single-cell battery further includes:

[0024] A pad is disposed between the core package and the circuit board, and the tab is configured to extend along the pad and bend to be electrically connected to the circuit board.

[0025] In one embodiment, the single-cell battery further includes:

[0026] An adhesive layer covers at least the side of the tab furthest from the pad.

[0027] In one embodiment, the single-cell battery further includes:

[0028] A housing, connected to the frame, and the housing covering the core package.

[0029] In one embodiment, the housing is formed with a clearance notch for avoiding the tab.

[0030] In one embodiment, the distance between the bottom surface of the clearance notch and the electrode tab is D, which satisfies: 3 mm ≤ D ≤ 5 mm.

[0031] In one embodiment, the single-cell battery further includes:

[0032] A label layer is attached to the outside of the housing.

[0033] Thirdly, embodiments of the present invention provide a battery pack, including the single battery cells as described above.

[0034] The beneficial effects of the embodiments of this utility model are as follows:

[0035] In an embodiment of this invention, by creating a mounting notch in the frame, when the circuit board is assembled into the mounting cavity of the frame, the second connecting part slides along the mounting notch and connects with the first connecting part to fix the position of the circuit board. Based on the mounting notch, the area of ​​the area where the circuit board is pressed against the frame can be reduced, thereby reducing the difficulty of circuit board installation and improving installation efficiency. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the frame structure provided in an embodiment of the present utility model;

[0038] Figure 2 This is a schematic diagram of the connection structure provided in an embodiment of the present utility model;

[0039] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0040] Figure 4 yes Figure 2 Exploded view;

[0041] Figure 5 This is a schematic diagram of the structure of a single battery provided in an embodiment of this utility model;

[0042] Figure 6 yes Figure 5 Exploded view.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Frame; 11. First substrate; 111. Clearance hole; 12. Second substrate; 13. First sidewall; 15. First frame; 151. Injection hole; 16. Second frame; 17. Mounting notch; 18. First connecting part; 19. Guide surface;

[0045] 2. Circuit board; 21. Second connection part; 22. Electrical connection position;

[0046] 3. Core package; 31. Electrode;

[0047] 4. Spacer blocks;

[0048] 5. Shell; 51. Clearance notch;

[0049] 6. Tag layer. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0051] like Figures 1 to 6 As shown, this application embodiment provides a connection structure. The connection structure includes a frame 1 and a circuit board 2. The frame 1 has a mounting cavity. A mounting notch 17 communicating with the mounting cavity is formed on the frame 1. A first connecting portion 18 is provided on the notch wall of the mounting notch 17. The circuit board 2 is disposed within the mounting cavity. The circuit board 2 is configured with an outwardly extending second connecting portion 21. The second connecting portion 21 is located within the mounting notch 17 and is connected to the first connecting portion 18.

[0052] In this embodiment, by creating an installation notch 17 on the frame 1, when the circuit board 2 is assembled into the mounting cavity of the frame 1, the second connecting part 21 slides along the installation notch 17 and connects with the first connecting part 18 to fix the position of the circuit board 2. Based on the installation notch 17, the area of ​​the area where the circuit board 2 is pressed against the frame 1 can be reduced, thereby reducing the installation difficulty of the circuit board 2 and improving the installation efficiency of the circuit board 2.

[0053] It is understandable that, based on the cooperation between the first connecting part 18 and the second connecting part 21, the circuit board 2 can be locked and fixed in the mounting cavity, preventing the circuit board 2 from falling out of the mounting cavity.

[0054] In some embodiments, the notch walls on both sides of the mounting notch 17 are provided with first connecting portions 18. The two first connecting portions 18 cooperate with a second connecting portion 21 to form a connection.

[0055] In some embodiments, the circuit board 2 is provided with four second connecting portions 21, and the frame 1 is formed with four mounting notches 17, and each mounting notch 17 is provided with a first connecting portion 18 on the notch wall surface opposite to both sides. Thus, the position of the circuit board 2 is locked by the eight first connecting portions 18 to prevent the electrical connection positions 22 of the circuit board 2 from being disengaged.

[0056] In some embodiments, the first connecting portion 18 is integrally formed on the notch wall of the mounting notch 17. The second connecting portion 21 is integrally formed on the circuit board 2.

[0057] like Figure 1 As shown, in some embodiments, the frame 1 includes a first substrate 11, a first sidewall 13, and a second sidewall. The first sidewall 13 and the second sidewall are spaced apart on opposite sides of the first substrate 11 along a first direction. The first substrate 11, the first sidewall 13, and the second sidewall enclose a mounting cavity. A mounting notch 17 is formed on the side of the first sidewall 13 and / or the second sidewall away from the first substrate 11.

[0058] It is understandable that the mounting cavity is formed by the first substrate 11, the first sidewall 13, and the second sidewall to fix the circuit board 2 within the area enclosed by the three components, ensuring reliable fixation of the circuit board 2. This mounting cavity can also accommodate a portion of the core package 3.

[0059] It should be noted that the opening direction of the mounting notch 17 is opposite to that of the first substrate 11.

[0060] In some embodiments, the side of the first sidewall 13 away from the first substrate 11 is provided with a mounting notch 17.

[0061] In some embodiments, the side of the second sidewall away from the first substrate 11 is provided with a mounting notch 17.

[0062] In some embodiments, both the first sidewall 13 and the sidewall away from the first substrate 11 are provided with mounting notches 17.

[0063] like Figure 2 and Figure 3 As shown, in some embodiments, the first connecting portion 18 is spaced apart from the first substrate 11. The second connecting portion 21 is disposed between the first substrate 11 and the first connecting portion 18.

[0064] It is understood that, based on the spacing between the first connecting portion 18 and the first substrate 11, a snap-fit ​​area can be formed between them. The second connecting portion 21 is placed within this snap-fit ​​area to lock its position, and the first connecting portion 18 acts as a stop for the second connecting portion 21, preventing it from falling out of the snap-fit ​​area. This ensures reliable fixation of the circuit board 2.

[0065] In some embodiments, the distance between the first connecting portion 18 and the first substrate 11 is equal to the thickness of the second connecting portion 21.

[0066] Please continue reading. Figure 3 In some embodiments, a guide surface 19 is formed on the side of the first connecting portion 18 away from the first substrate 11. The guide surface 19 is inclined and faces the opening side of the mounting notch 17.

[0067] Understandably, based on the guide surface 19 constructed on the first connecting portion 18, the second connecting portion 21 of the circuit board 2 first contacts the guide surface 19 and can be guided and installed along the guide surface 19 to ensure rapid assembly of the circuit board 2. Furthermore, the inclined guide surface 19 also allows the width of the first connecting portion 18 to gradually change, thus providing sufficient width for the first connecting portion 18 to stop the second connecting portion 21 and prevent the second connecting portion 21 from detaching from the first substrate 11 and the first connecting portion 18.

[0068] like Figure 4 and Figure 6 As shown, in some embodiments, the first substrate 11 is provided with a clearance hole 111. An electrical connection position 22 is provided on the side of the circuit board 2 facing the first substrate 11. The electrical connection position 22 corresponds to the clearance hole 111.

[0069] It is understandable that the circuit board 2 can be electrically connected to the core pack 3, and the charging and discharging of the core pack 3 can be realized through the electrical connection position 22, so that the clearance hole 111 corresponds to the electrical connection position 22, thereby avoiding the interference of the first substrate 11 with the charging and discharging of the single cell.

[0070] In some embodiments, at least two electrical connection positions 22 are provided on the circuit board 2 at intervals, and correspondingly, at least two clearance holes 111 are also provided on the first substrate 11 at intervals, and the clearance holes 111 correspond one-to-one with the electrical connection positions 22.

[0071] In some embodiments, the size of the clearance hole 111 is the same as the size of the electrical connection position 22. Alternatively, the size of the clearance hole 111 is slightly larger than the size of the electrical connection position 22.

[0072] In some embodiments, if the clearance hole 111 is a square hole, then the electrical connection position 22 is also square. Alternatively, if the clearance hole 111 is a circular hole, then the electrical connection position 22 is also circular.

[0073] Please continue reading. Figure 1 In some embodiments, the frame 1 further includes a second substrate 12, a first border 15, and a second border 16. The second substrate 12 is spaced apart from the first substrate 11. The first border 15 and the second border 16 are both connected between the first substrate 11 and the second substrate 12, and the first border 15 and the second border 16 are spaced apart on opposite sides of the first substrate 11 along a second direction. The first direction and the second direction are at an angle.

[0074] It is understood that a frame 1 is formed based on the first substrate 11, the second substrate 12, the first sidewall 13, the second sidewall, the first frame 15, and the second frame 16, thereby enabling the core package 3 to be installed within the frame 1. The first substrate 11 abuts against the circuit board 2, and the second substrate 12 abuts against the bottom surface of the core package 3. The first frame 15 and the second frame 16 abut against the opposite sides of the small facets of the core package 3, respectively.

[0075] The first sidewall 13 and the second sidewall can limit the relative sides of the circuit board 2 in the first direction, and the first frame 15 and the second frame 16 can limit the relative sides of the circuit board 2 in the second direction, thereby ensuring the reliable fixation of the circuit board 2 and preventing the circuit board 2 from shifting.

[0076] It should be noted that the extension height of the first side wall 13 and the second side wall is much smaller than the extension height of the first frame 15 and the second frame 16.

[0077] In some embodiments, the first substrate 11, the second substrate 12, the first sidewall 13, the second sidewall, the first frame 15, and the second frame 16 are integrally formed.

[0078] In some embodiments, the first direction and the second direction form an acute angle. Alternatively, the first direction and the second direction form an obtuse angle. Alternatively, the first direction and the second direction are perpendicular.

[0079] In some embodiments, the first direction is the thickness direction of the individual battery cell. The second direction is the width direction of the individual battery cell.

[0080] Please continue reading. Figure 1 In some embodiments, the first frame 15 and / or the second frame 16 are provided with glue injection holes 151.

[0081] It is understood that injection holes 151 are provided in the first frame 15 and / or the second frame 16 to facilitate the injection of potting compound into the frame 1. After the core package 3 is installed in the frame 1, a reliable connection between the core package 3 and the frame 1 can be achieved through potting compound.

[0082] In some embodiments, the first frame 15 is provided with two injection holes 151. The two injection holes 151 are located at opposite ends of the first frame 15.

[0083] In some embodiments, the second frame 16 is provided with two injection holes 151. The two injection holes 151 are located at opposite ends of the second frame 16.

[0084] In some embodiments, both the first frame 15 and the second frame 16 are provided with glue injection holes 151.

[0085] In some embodiments, the injection hole 151 is configured as a round hole.

[0086] like Figure 5 and Figure 6 As shown in the illustration, this application also provides a single-cell battery. The single-cell battery includes a core pack 3 and a connection structure as described in the preceding embodiments. The core pack 3 has tabs 31. The core pack 3 is disposed within a frame 1. The tabs 31 are electrically connected to a circuit board 2.

[0087] In this embodiment, by creating an installation notch 17 on the frame 1, when the circuit board 2 is assembled into the mounting cavity of the frame 1, the second connecting part 21 slides along the installation notch 17 and connects with the first connecting part 18 to fix the position of the circuit board 2. Based on the installation notch 17, the area of ​​the area where the circuit board 2 is pressed against the frame 1 can be reduced, thereby reducing the installation difficulty of the circuit board 2 and improving the installation efficiency of the circuit board 2.

[0088] In some embodiments, a single battery cell includes two core packs 3, and the tabs 31 of both core packs 3 are electrically connected to the circuit board 2. After the tabs 31 of the two core packs 3 are electrically connected to the circuit board 2, they are folded together and then assembled into the frame 1.

[0089] In some embodiments, the tab 31 is soldered to the circuit board 2.

[0090] like Figure 6 As shown, in some embodiments, the individual battery cell also includes a pad 4. The pad 4 is disposed between the cell pack 3 and the circuit board 2. The tab 31 is configured to extend along the pad 4 and bend to electrically connect to the circuit board 2.

[0091] Understandably, the pad 4 can support the tab 31, which is beneficial for the bending of the tab 31.

[0092] In some embodiments, the pad 4 can be configured as a cuboid shape. The pad 4 can be adhered to the top of the core package 3 or the bottom of the circuit board 2, ensuring that the tab 31 can be electrically connected to the circuit board 2 after extending along the pad 4 and bending.

[0093] In some embodiments, pad 4 is a silicone pad.

[0094] In some embodiments, the individual battery cell further includes an adhesive layer. The adhesive layer covers at least the side of the tab 31 away from the pad 4.

[0095] Understandably, the core package 3, after being inserted into the frame 1 and assembled with the shell 5, forms an intermediate structure. This intermediate structure can be placed in a mold, and glue can be injected into the frame 1 through the glue injection holes 151 on the first frame 15 and / or the second frame 16 to ensure a reliable connection between the core package 3, the frame 1, and the shell 5. After the glue solidifies, an adhesive layer is formed, which at least covers the tab 31, thereby protecting the tab 31 from risks such as tearing.

[0096] When injecting adhesive into the frame 1 using the injection holes 151 on the first frame 15 and / or the second frame 16, low-pressure injection is preferred, and a ceramic sheet is provided inside the injection mold. The position of the ceramic sheet corresponds to the position of the tab 31 to prevent the tab 31 from contacting the housing 5 and causing a short circuit during the injection process.

[0097] Please continue reading. Figure 6 In some embodiments, the individual battery cell also includes a housing 5. The housing 5 is connected to the frame 1 and covers the core package 3.

[0098] It is understandable that the casing 5 covers the core pack 3 to protect it and prevent the core pack 3 from deforming due to external forces, thus avoiding safety hazards.

[0099] The shell 5 is connected to the frame 1, and the connection methods include, but are not limited to, interference fit, bonding, and fastener fixing.

[0100] It should be noted that the housing 5 does not completely cover the first frame 15 and the second frame 16 of the frame 1, so that the glue injection holes 151 on the first frame 15 and / or the second frame 16 can be exposed to facilitate glue injection into the frame 1. For example, two housings 5 ​​are provided, and they are respectively attached to the side of the two core packages 3 away from each other, and the two housings 5 ​​are respectively connected to the opposite sides of the frame 1.

[0101] In some embodiments, the housing 5 may be a metal shell such as a steel shell or an aluminum shell.

[0102] Please continue reading. Figure 6 In some embodiments, the housing 5 is formed with a clearance notch 51 for avoiding the tab 31.

[0103] It is understandable that the clearance notch 51 is provided on the housing 5 to allow the housing 5 to avoid contact with the tab 31, so as to prevent short circuits caused by contact between the tab 31 and the housing 5.

[0104] The number of clearance gaps 51 is matched with the number of tabs 31.

[0105] It should be noted that the clearance notch 51, along the height direction of the individual battery cell, allows the housing 5 and the tab 31 to be spaced apart. The clearance notch 51, along the width direction of the individual battery cell, also allows the housing 5 and the tab 31 to be spaced apart. This ensures that the housing 5 does not come into contact with the tab 31, thus preventing a short circuit.

[0106] In some embodiments, the clearance notch 51 also facilitates the observation of the adhesive application. It is understood that by clearing the tab 31 from the clearance notch 51, the tab 31 can be exposed. After the adhesive layer is formed after the adhesive application is completed, it can be directly observed through the clearance notch 51 to see if the adhesive layer completely covers the tab 31, so as to check the adhesive application.

[0107] In some embodiments, the distance between the bottom surface of the clearance notch 51 and the tab 31 is D, which satisfies: 3 mm ≤ D ≤ 5 mm.

[0108] Understandably, the distance D between the bottom surface of the clearance notch 51 and the tab 31 is set within the range of 3 mm to 5 mm to ensure sufficient creepage distance between the tab 31 and the housing 5, and to ensure that the housing 5 has sufficient strength. If the distance between the bottom surface of the clearance notch 51 and the tab 31 is less than 3 mm, a short circuit may occur due to insufficient creepage distance or manufacturing tolerances causing an electrical connection between the housing 5 and the tab 31. If the distance between the bottom surface of the clearance notch 51 and the tab 31 is greater than 5 mm, the clearance notch 51 will be too large, resulting in insufficient strength of the housing 5, and the clearance notch 51 will cause the core package 3 to have an excessively large exposed area, increasing the risk of damage to the core package 3.

[0109] In some embodiments, the distance between the bottom surface of the clearance notch 51 and the tab 31 can be set to 3 mm, 4 mm, 5 mm, or any value between the two.

[0110] Please continue reading. Figure 6 In some embodiments, the individual battery cell also includes a label layer 6. The label layer 6 covers the outer surface of the housing 5.

[0111] Understandably, on the one hand, the label layer 6 can cover the casing 5, providing structural protection, high-temperature resistance, and corrosion resistance. On the other hand, the label layer 6 can also display the model and electrical parameters of individual batteries, and enable full lifecycle traceability.

[0112] In some embodiments, the label layer 6 is adhered to the outside of the housing 5. Alternatively, the label layer 6 is thermoplastically attached to the outside of the housing 5.

[0113] This application also provides a battery pack. The battery pack includes individual batteries as described in the foregoing embodiments.

[0114] In this embodiment, by creating an installation notch 17 on the frame 1, when the circuit board 2 is assembled into the mounting cavity of the frame 1, the second connecting part 21 slides along the installation notch 17 and connects with the first connecting part 18 to fix the position of the circuit board 2. Based on the installation notch 17, the area of ​​the area where the circuit board 2 is pressed against the frame 1 can be reduced, thereby reducing the installation difficulty of the circuit board 2 and improving the installation efficiency of the circuit board 2.

[0115] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A connection structure characterized by comprising: include: The frame (1) has a mounting cavity, and a mounting notch (17) communicating with the mounting cavity is formed on the frame (1). The notch wall of the mounting notch (17) is provided with a first connecting part (18). A circuit board (2) is disposed in the mounting cavity. The circuit board (2) is configured with an outwardly extending second connecting part (21). The second connecting part (21) is located in the mounting notch (17) and is connected to the first connecting part (18).

2. The connection structure according to claim 1, characterized in that The frame (1) includes: First substrate (11); The first sidewall (13) and the second sidewall are disposed at intervals on opposite sides of the first substrate (11) along a first direction, and the first substrate (11), the first sidewall (13) and the second sidewall surround to form the mounting cavity; The mounting notch (17) is formed on the side of the first sidewall (13) and / or the second sidewall away from the first substrate (11).

3. The connection structure according to claim 2, characterized in that The first connecting portion (18) is spaced apart from the first substrate (11), and the second connecting portion (21) is disposed between the first substrate (11) and the first connecting portion (18).

4. The connection structure according to claim 3, characterized in that The first connecting portion (18) has a guide surface (19) formed on the side away from the first substrate (11). The guide surface (19) is inclined and faces the opening side of the mounting notch (17).

5. The connection structure according to claim 2, characterized by The first substrate (11) is provided with a clearance hole (111), and the circuit board (2) is provided with an electrical connection position (22) on the side facing the first substrate (11), and the electrical connection position (22) corresponds to the clearance hole (111).

6. The connection structure according to any one of claims 2 to 5, characterized in that, The frame (1) also includes: The second substrate (12) is disposed at a distance from the first substrate (11); The first frame (15) and the second frame (16) are both connected between the first substrate (11) and the second substrate (12), and the first frame (15) and the second frame (16) are spaced apart on opposite sides of the first substrate (11) along the second direction. The first direction and the second direction are set at an angle.

7. The connection structure according to claim 6, characterized in that The first frame (15) and / or the second frame (16) are provided with glue injection holes (151).

8. A single cell characterized by, include: Core package (3) has tabs (31); The connection structure as described in any one of claims 1 to 7; The core package (3) is located inside the frame (1), and the tab (31) is electrically connected to the circuit board (2).

9. The cell according to claim 8, wherein The single battery cell also includes: A pad (4) is disposed between the core package (3) and the circuit board (2), and the tab (31) is configured to extend along the pad (4) and bend to be electrically connected to the circuit board (2).

10. The cell according to claim 9, wherein The single battery cell also includes: An adhesive layer covers at least the side of the tab (31) away from the pad (4).

11. The single cell according to any one of claims 8 to 10, characterized in that, The single battery cell also includes: The housing (5) is connected to the frame (1), and the housing (5) covers the core package (3).

12. The cell according to claim 11, wherein The housing (5) has a clearance notch (51) for avoiding the tab (31).

13. The cell according to claim 12, wherein The distance between the bottom surface of the clearance notch (51) and the tab (31) is D, which satisfies: 3 mm ≤ D ≤ 5 mm.

14. The cell of claim 11 wherein, The single battery cell also includes: A label layer (6) is attached to the outside of the housing (5).

15. A battery pack, characterized by Includes the single-cell battery as described in any one of claims 8 to 14.

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