Battery

Abstract

The utility model discloses a battery which comprises a bracket body, a battery cell and a limiting piece, a battery cell accommodating groove is formed in the bracket body, and a communication port is formed in one side, facing the first direction, of the battery cell accommodating groove; the battery cell comprises a battery cell body, a tab and a tab adhesive sealing edge, the battery cell body is located in the battery cell accommodating groove, one side of the battery cell body is provided with the tab and the tab adhesive sealing edge, and at least part of the tab extends out of the battery cell accommodating groove through the communication port; the limiting piece comprises a first retaining wall and a second retaining wall, at least one of the first retaining wall and the second retaining wall is connected with the support body, the tab glue sealing edge is in limiting fit with the first retaining wall in the first direction, and the tab glue sealing edge is in limiting fit with the second retaining wall in the second direction. According to the battery disclosed by the invention, the limiting piece can limit the tab glue sealing edge along the first direction and the second direction of the battery, so that the risk of deflection of the welding position of the battery cell is avoided, and the assembly precision of the battery is improved.

Description

Technical Field

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

[0002] With the increasing popularity of electronic and electrical products, the demand for batteries is also growing. In related technologies, batteries typically include a support body, battery cells, and a circuit board. The support body has parallel battery cell receiving slots and circuit board mounting areas. The battery cells are placed in the battery cell receiving slots, and the circuit board is mounted in the circuit board mounting area. The tabs on the battery cells extend to the position of the circuit board, and then the tabs are soldered to the circuit board, thereby realizing the assembly of the circuit board and the battery cells.

[0003] However, during the assembly process on automated production lines, the battery cells placed within the support structure may vibrate during transport, posing a risk of cell jumping. When a cell jumps, the adhesive sealant on the tabs can easily overlap with the wall of the cell receiving slot, causing the cell to deviate from the slot. This results in misalignment of the tabs on the cell with their soldering positions on the circuit board, making it difficult to properly solder the tabs to the circuit board. Therefore, the assembly reliability of batteries in this technology is relatively poor. Utility Model Content

[0004] This utility model discloses a battery to solve the problem of poor assembly reliability of batteries in related technologies.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A battery having intersecting first and second directions, the battery comprising:

[0007] The bracket body is provided with a cell receiving groove, and the cell receiving groove has a communication port on the side facing the first direction, and the communication port penetrates the groove wall of the cell receiving groove;

[0008] A battery cell, comprising a battery cell body, tabs and tab sealant, the battery cell body being located in the battery cell receiving groove, the tabs and tab sealant being provided on one side of the battery cell body, and at least a portion of the tabs extending out of the battery cell receiving groove through the communicating port;

[0009] A limiting member is provided on the bracket body and located on the side of the cell receiving slot where the communication port is located. The limiting member includes a first baffle and a second baffle. At least one of the first baffle and the second baffle is connected to the bracket body. The tab seal edge is limited and cooperates with the first baffle along a first direction and the tab seal edge is limited and cooperates with the second baffle along a second direction.

[0010] Optionally, the tab sealing edge includes a sealing body, a first folded section and a second folded section. The sealing body is disposed on the cell body, and the first folded section and the second folded section are respectively located at both ends of the sealing body and overlapped with the sealing body.

[0011] The number of limiting members is at least two, namely a first limiting member and a second limiting member, wherein the first limiting member is disposed opposite to the first folding segment, and the second limiting member is disposed opposite to the second folding segment.

[0012] Optionally, the first retaining wall has a first side, a second side, a third side, and a fourth side connected end to end in sequence. The first side and the third side are arranged opposite to each other, and the second side and the fourth side are arranged opposite to each other. The first side is connected to the bottom of the cell receiving tank, the third side is connected to the second retaining wall, and one of the second side and the fourth side is connected to the side wall of the cell receiving tank.

[0013] Optionally, the angle between the first retaining wall and the second retaining wall is a right angle.

[0014] Optionally, the second retaining wall has an adjacent first connecting edge and a second connecting edge, the first connecting edge being connected to the third side, and the second connecting edge being located on the side of the first retaining wall that is connected to the side wall of the cell receiving tank and being connected to the side wall of the cell receiving tank.

[0015] Optionally, the first retaining wall is provided with a first weight-reducing hole, which penetrates the first retaining wall along the first direction.

[0016] Optionally, the bracket body has a circuit board mounting area arranged parallel to the cell receiving slot, and the circuit board mounting area is connected to the cell receiving slot through the communication port; the circuit board mounting area is used to mount the circuit board of the battery.

[0017] Optionally, the circuit board mounting area is provided with a plurality of positioning protrusions, which are positioned and cooperate with the circuit board; the bracket body is also provided with reinforcing ribs, and the limiting member is connected to at least one of the positioning protrusions opposite to it through the reinforcing ribs, with the reinforcing ribs located between the first retaining wall and the positioning protrusions opposite to it.

[0018] Optionally, the bracket body has a first cell receiving area, a circuit board mounting area, and a second cell receiving area arranged at intervals along the first direction. Both the first cell receiving area and the second cell receiving area have multiple cell receiving slots. The multiple cell receiving slots in the first cell receiving area and the multiple cell receiving slots in the second cell receiving area are arranged at intervals along a third direction of the bracket body. The circuit board mounting area is connected to each cell receiving slot through the communication port. Each cell receiving slot is provided with at least one limiting member. The first direction, the second direction, and the third direction intersect each other.

[0019] Optionally, a second weight-reducing hole is provided at the bottom of the cell receiving groove, and the orthographic projection outline of the cell body is located outside the orthographic projection outline of the second weight-reducing hole along the second direction.

[0020] The technical solution adopted in this utility model can achieve the following beneficial effects:

[0021] In the battery disclosed in this utility model, a limiting member is provided on the support body, located on the side of the cell receiving slot with a communication port. The limiting member includes a first baffle and a second baffle. The adhesive sealing edge of the electrode tab engages with the first baffle along a first direction and with the second baffle along a second direction. In this design, the limiting member can limit the adhesive sealing edge of the electrode tab along both the first and second directions, thereby avoiding the risk of the cell jumping during transmission within the support body. This makes it less likely for the cell to deviate from the cell receiving slot, thus preventing the risk of misalignment between the electrode tab and its soldering position on the circuit board, and improving the assembly reliability of the battery. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the battery support body disclosed in an embodiment of the present utility model;

[0024] Figure 2 and Figure 3 This is a partial schematic diagram of the battery disclosed in an embodiment of the present utility model;

[0025] Figures 4 to 6 This is a partially enlarged view of a portion of the battery structure disclosed in an embodiment of this utility model;

[0026] Figure 7 This is a schematic diagram of the battery cell structure disclosed in an embodiment of the present utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100-Bracket body, 101-First cell receiving area, 102-Second cell receiving area, 110-Cell receiving slot, 111-Connecting port, 112-Second weight reduction hole, 120-Circuit board mounting area, 130-Positioning protrusion, 140-Reinforcing rib, 200-Cell, 210-Cell body, 220-Electrode tab, 230-Electrode tab adhesive sealing, 231-Sealing body, 232-First folding section, 233-The Two-fold section, 300-circuit board, 400-limiting component, 401-first limiting component, 402-second limiting component, 410-first retaining wall, 411-first side, 412-second side, 413-third side, 414-fourth side, 415-first weight reduction hole, 420-second retaining wall, 421-first connecting edge, 422-second connecting edge, X-first direction, Y-second direction, Z-third direction. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] The technical solutions disclosed in the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0031] like Figures 1 to 7 As shown, this utility model discloses a battery having intersecting first direction X and second direction Y. The disclosed battery includes a support body 100, a battery cell 200, and a limiting member 400.

[0032] The bracket body 100 provides a mounting base for other components of the battery. Simultaneously, the bracket body 100 also protects the components installed within it, thus ensuring the overall strength of the battery. The bracket body 100 has a cell receiving slot 110, which has a connecting port 111 on the side facing the first direction X. The connecting port 111 penetrates the slot wall of the cell receiving slot 110. In other words, the cell receiving slot 110 has no sidewall on the side facing the first direction X, or it can be understood that the cell receiving slot 110 has a notch in the sidewall facing the first direction X, thereby forming the connecting port 111.

[0033] The battery cell 200 is the energy storage component of the battery. The battery cell 200 includes a cell body 210, tabs 220, and tab sealing edges 230. The cell body 210 is located in the cell receiving groove 110. A tab 220 and tab sealing edge 230 are provided on one side of the cell body 210, and the tab 220 extends out from inside the cell body 210. At least a portion of the tab 220 extends outside the cell receiving groove 110 through a communication port 111. Since the battery cell 200 is soldered to the battery circuit board 300 via the tabs 220, electrical conduction between the battery cell 200 and the circuit board 300 is achieved. Therefore, the tab 220 needs to extend outside the cell receiving groove 110 through the communication port 111. The aforementioned cell receiving groove 110 has a communication port 111 on one side in the first direction X, which can also be understood as the direction in which the cell receiving groove 110 faces the circuit board 300.

[0034] Specifically, the battery cell body 210 includes, but is not limited to, a plastic sealing film and an energy storage structure. The energy storage structure is the component of the battery cell body 210 used for energy storage; it is the internal structure of the battery cell body 210. The plastic sealing film protects the internal structure of the battery cell body 210, acting as an external structure. An adhesive sealant 230 is provided at the opening of the plastic sealing film to seal the opening. A tab 220 extends from the inside of the battery cell body 210 to the outside, extending from the opening of the plastic sealing film to the outside of the battery cell body 210. The tab 220 is electrically connected to the internal circuit structure of the battery cell body 210. The specific structure of the battery cell 200 is known technology and is not limited herein.

[0035] A limiting member 400 is disposed on the bracket body 100 and located on the side of the cell receiving slot 110 where the communication port 111 is provided. The limiting member 400 includes a first baffle 410 and a second baffle 420, at least one of which is connected to the bracket body 100. Optionally, the first baffle 410 and the second baffle 420 can be separately disposed, that is, the first baffle 410 and the second baffle 420 are not connected, and both the first baffle 410 and the second baffle 420 are disposed on the bracket body 100. Alternatively, the first baffle 410 is connected to the bracket body 100, and the second baffle 420 is connected to the first baffle 410. Still another option is that the second baffle 420 is connected to the bracket body 100, and the first baffle 410 is connected to the second baffle 420. The specific connection structure between the limiting member 400 and the bracket body 100 is not limited herein.

[0036] The tab seal 230 is positioned and engaged with the first baffle 410 along the first direction X, and with the second baffle 420 along the second direction Y. Here, the first direction X can be the direction from the cell receiving slot 110 towards the circuit board 300 located in the battery. The first direction X can also be understood as a horizontal direction, in which case the first baffle 410 can block and limit the tab seal 230 along the horizontal direction. The second direction Y can be the direction from the bottom to the opening of the cell receiving slot 110, and can also be understood as a vertical direction, in which case the second baffle 420 can block and limit the tab seal 230 along the vertical direction. Here, the first direction X is as follows: Figure 3 As shown, the second direction Y is as Figure 5 As shown in the image.

[0037] In the embodiments disclosed in this application, the first baffle 410 can limit the tab seal edge 230 along the first direction X. At this time, the first baffle 410 can limit the tab seal edge 230 along the direction of the cell receiving groove 110 toward the circuit board 300, thereby limiting the risk of the cell 200 moving toward the circuit board 300. The second baffle 420 limits the tab seal edge 230 along the second direction Y. At this time, the second baffle 420 can limit the tab seal edge 230 along the direction from the bottom of the cell receiving groove 110 to its opening, thereby limiting the risk of the cell 200 jumping. The other degrees of freedom of the cell 200 can be limited by the sidewall of the cell receiving groove 110 limiting the cell body 210.

[0038] In the automated production line assembly process of the battery disclosed in this application, the limiting member 400 can limit the tab adhesive sealing edge 230 along the direction from the bottom of the cell receiving groove 110 to its opening and the direction of the cell receiving groove 110 toward the circuit board 300, thereby avoiding the risk of the cell 200 placed in the bracket body 100 jumping during transmission, and making it less likely for the cell 200 to deviate from the cell receiving groove 110. Therefore, it can avoid the risk of the tab 220 and its welding position on the circuit board 300 being misaligned, thus ensuring the accuracy of the welding position of the tab 220 and the circuit board 300, thereby improving the assembly reliability of the battery.

[0039] In addition, the tab 220 in this application can be precisely soldered to the soldering position on the circuit board 300, thus avoiding contact between the tab 220 and other electronic components on the circuit board 300, avoiding the risk of short circuit in the battery, and thus improving the safety of the battery.

[0040] In addition, the cell receiving groove 110 is provided with a communication port 111, which can avoid the tab adhesive sealing edge 230, thereby avoiding the risk of the tab adhesive sealing edge 230 overlapping on the groove wall of the cell receiving groove 110, and further avoiding the risk of the soldering position of the cell 200 and the circuit board 300 being misaligned.

[0041] In one embodiment, the battery circuit board 300 and the battery cell 200 can both be mounted on the support body 100. The support body 100 may also have a circuit board mounting area 120 arranged parallel to the battery cell receiving slot 110, where the circuit board mounting area 120 is used to mount the aforementioned circuit board 300. Therefore, the battery cell receiving slot 110 has a communication port 111 on the side facing the circuit board mounting area 120. In this case, the battery cell receiving slot 110 is connected to the circuit board mounting area 120 through the communication port 111. In this embodiment, the circuit board 300 and the battery cell 200 are mounted on the same support body 100, which simplifies the battery structure.

[0042] In the above embodiment, during the manufacturing process of the battery cell 200, the edge portion of the tab seal 230 protrudes from the battery cell body 210. This protruding portion of the tab seal 230 is referred to as the "dog ear," and therefore needs to be folded. Specifically, the tab seal 230 may include a seal body 231, a first folded segment 232, and a second folded segment 233. The seal body 231 is disposed on the battery cell body 210. The first folded segment 232 and the second folded segment 233 are located at opposite ends of the seal body 231. At this time, the first folded segment 232 and the second folded segment 233 are located on two adjacent sides of the seal body 231 and the battery cell body 210, and are folded and placed on the same side surface of the seal body 231, thus stacking on the seal body 231. Here, the first folded segment 232 and the second folded segment 233 are referred to as the "dog ear." The first folding segment 232 and the second folding segment 233 are located at opposite ends of the sealing body 231. The first folding segment 232 and the second folding segment 233 protrude from the edge of the cell body 210. Therefore, in order to avoid the risk of interference between the first folding segment 232 and the second folding segment 233 and other components during battery assembly, it is usually necessary to fold the first folding segment 232 and the second folding segment 233.

[0043] However, the "dog ears" fold up partially, making them more likely to overlap the side wall of the cell receiving slot 110 when the cell 200 vibrates. Therefore, in another alternative solution, the number of limiting members 400 can be at least two: a first limiting member 401 and a second limiting member 402. The first limiting member 401 is positioned opposite to the first folded segment 232, and the second limiting member 402 can be positioned opposite to the second folded segment 233.

[0044] In this design, the first limiting member 401 is positioned opposite to the first folded segment 232, thus limiting the first folded segment 232 in the first direction X and the second direction Y. The second limiting member 402 is positioned opposite to the second folded segment 233, thus limiting the second folded segment 233 in the first direction X and the second direction Y. At this time, the first limiting member 401 and the second limiting member 402 limit the two upward-curving "dog ears," thereby further avoiding the risk of the battery cell 200 deviating from the battery cell receiving slot 110 and further improving the assembly accuracy of the battery.

[0045] In the above scheme, the side of the first retaining wall 410 can be connected to the support body 100.

[0046] In another optional embodiment, the first retaining wall 410 has a first side 411, a second side 412, a third side 413, and a fourth side 414 connected end to end. The first side 411 and the third side 413 are arranged opposite to each other, and the second side 412 and the fourth side 414 are also arranged opposite to each other. The first side 411 is connected to the bottom of the cell receiving groove 110, the third side 413 is connected to the second retaining wall 420, and one of the second side 412 and the fourth side 414 is connected to the sidewall of the cell receiving groove 110.

[0047] In this design, the two adjacent sides of the first retaining wall 410 are connected to the support body 100, which improves the connection strength between the first retaining wall 410 and the support body 100, thereby providing strength to the limiting member 400 and avoiding the risk of the limiting member 400 breaking.

[0048] Optionally, the cell receiving slot 110 may include a bottom wall, a first side wall, a second side wall, and a third side wall. The first side wall and the third side wall are disposed opposite each other, and the second side wall is disposed opposite to the communication port 111. In this case, the ends of the first side wall and the third side wall that are away from the second side wall form the communication port 111. The second side 412 of the first baffle 410 faces the first side wall, and the fourth side 414 faces the third side wall. When the limiting member 400 is disposed near the first side wall, the second side 412 of the first baffle 410 is connected to the first side wall. At this time, the first side 411 of the first baffle 410 is connected to the bottom wall, and the second side 412 is connected to the first side wall. When the limiting member 400 is disposed near the third side wall, the second side 412 of the first baffle 410 is connected to the third side wall. At this time, the first side 411 of the first baffle 410 is connected to the bottom wall, and the fourth side 414 is connected to the third side wall.

[0049] For example, the support body 100 is provided with a first limiting member 401 and a second limiting member 402. The first limiting member 401 is located near the first side wall, and the second limiting member 402 is located near the third side wall. Therefore, the first side 411 of the first retaining wall 410 of the first limiting member 401 is connected to the bottom wall, and the second side 412 of the first retaining wall 410 of the first limiting member 401 is connected to the first side wall. The first side 411 of the first retaining wall 410 of the second limiting member 402 is connected to the bottom wall, and the fourth side 414 of the first retaining wall 410 of the second limiting member 402 is connected to the third side wall.

[0050] Furthermore, the second barrier wall 420 may have adjacent first connecting edge 421 and second connecting edge 422. The first connecting edge 421 is connected to the third side edge 413, and the second connecting edge 422 is located on the side of the first barrier wall 410 that connects to the side wall of the cell receiving groove 110, and is connected to the side wall of the cell receiving groove 110. For example, when the second side edge 412 is connected to the first side wall, the second connecting edge 422 is the side edge of the second barrier wall 420 that is on the same side as the second side edge 412. Therefore, the same side of the first barrier wall 410 and the second barrier wall 420 is connected to the side wall of the cell receiving groove 110.

[0051] In this design, both the first retaining wall 410 and the second retaining wall 420 are connected to the support body 100, and the first retaining wall 410 and the second retaining wall 420 are also connected to each other. Therefore, the first retaining wall 410, the second retaining wall 420 and the support body 100 form a whole, which can further improve the strength of the limiting member 400.

[0052] In one alternative, the angle between the first retaining wall 410 and the second retaining wall 420 can be an acute angle.

[0053] In another alternative embodiment, the angle between the first baffle 410 and the second baffle 420 can be a right angle. In this solution, the second baffle 420 can press flat against the tab seal 230, thereby avoiding the risk of the cell body 210 tilting up due to excessive pressure on the side away from the tab seal 230.

[0054] In another alternative solution, the first retaining wall 410 may have a first weight-reduction hole 415, which can penetrate the first retaining wall 410 along a first direction X. This solution can reduce the overall weight of the battery, thereby facilitating the development of thinner and lighter batteries.

[0055] In one embodiment, the circuit board mounting area 120 may be provided with multiple positioning protrusions 130, which can engage with the circuit board 300 for positioning. This can also be understood as the multiple positioning protrusions 130 surrounding the aforementioned circuit board mounting area 120. In this embodiment, the multiple positioning protrusions 130 can position the circuit board 300, thereby improving the assembly accuracy of the circuit board 300 and further enhancing the assembly reliability of the battery.

[0056] Furthermore, the support body 100 may also be provided with reinforcing ribs 140, and the limiting member 400 can be connected to at least one opposite positioning protrusion 130 through the reinforcing ribs 140. The reinforcing ribs 140 are located between the first retaining wall 410 and the opposite positioning protrusion 130. In this solution, the limiting member 400 and the positioning protrusion 130 are connected into an integral structure by the reinforcing ribs 140, which helps to further improve the overall strength of the support body 100 and the limiting member 400.

[0057] In another alternative embodiment, the support body 100 may have a first cell receiving area 101, a circuit board mounting area 120, and a second cell receiving area 102 arranged at intervals along a first direction X. Both the first cell receiving area 101 and the second cell receiving area 102 may have multiple cell receiving slots 110. The multiple cell receiving slots 110 in the first cell receiving area 101 and the multiple cell receiving slots 110 in the second cell receiving area 102 may be arranged at intervals along a third direction Z of the support body 100. The circuit board mounting area 120 may be connected to each cell receiving slot 110 through a communication port 111. Each cell receiving slot 110 is provided with at least one limiting member 400. The first direction X, the second direction Y, and the third direction Z intersect each other.

[0058] Optionally, when the first direction X is the length direction of the support body 100 and the second direction Y is the thickness direction of the support body 100, the third direction Z can be the width direction of the support body 100. The third direction Z is not limited to the width direction of the support body 100, but can also be any horizontal direction intersecting the length direction of the support body 100. For example, the third direction... Figure 1 The direction indicated by Z in the middle.

[0059] In this design, the support body 100 can accommodate multiple battery cells 200, which helps to improve battery performance.

[0060] Optionally, the circuit board mounting area 120 may mount one circuit board 300, in which case all the battery cells 200 are electrically connected to the same circuit board 300. Alternatively, the circuit board mounting area 120 may mount multiple circuit boards 300, with each circuit board 300 electrically connected to one battery cell 200. Still alternatively, the circuit board mounting area 120 may mount multiple circuit boards 300, with one circuit board 300 electrically connected to two battery cells 200 on the left and right sides.

[0061] In another optional embodiment, a second weight-reduction hole 112 may be formed at the bottom of the cell receiving slot 110. Along the second direction Y, the orthographic projection outline of the cell body 210 lies outside the orthographic projection outline of the second weight-reduction hole 112. In this case, the orthographic projection outline area of ​​the cell body 210 is larger than the orthographic projection outline area of ​​the second weight-reduction hole 112, thereby preventing the cell body 210 from falling out of the second weight-reduction hole 112. This solution can reduce the overall weight of the battery, thus contributing to the development of thinner and lighter batteries.

[0062] The above embodiments of this utility model mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0063] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A battery having intersecting first direction (X) and second direction (Y), characterized in that, The battery includes: The bracket body (100) is provided with a cell receiving groove (110). The cell receiving groove (110) has a communication port (111) on the side facing the first direction (X). The communication port (111) penetrates the groove wall of the cell receiving groove (110). A battery cell (200) includes a battery cell body (210), a tab (220), and a tab sealant (230). The battery cell body (210) is located in the battery cell receiving groove (110). The tab (220) and the tab sealant (230) are provided on one side of the battery cell body (210). At least a portion of the tab (220) extends out of the battery cell receiving groove (110) through the communication port (111). A limiting member (400) is provided on the bracket body (100) and located on the side of the cell receiving slot (110) where the communication port (111) is provided. The limiting member (400) includes a first barrier (410) and a second barrier (420). At least one of the first barrier (410) and the second barrier is connected to the bracket body (100). The tab seal (230) is limited and cooperates with the first barrier (410) along the first direction (X) and the tab seal (230) is limited and cooperates with the second barrier (420) along the second direction (Y).

2. The battery according to claim 1, characterized in that, The tab sealing edge (230) includes a sealing body (231), a first folded section (232), and a second folded section (233). The sealing body (231) is disposed on the battery cell body (210). The first folded section (232) and the second folded section (233) are located at both ends of the sealing body (231) and are stacked with the sealing body (231). The number of limiting members (400) is at least two, namely a first limiting member (401) and a second limiting member (402). The first limiting member (401) is disposed opposite to the first folding segment (232), and the second limiting member (402) is disposed opposite to the second folding segment (233).

3. The battery according to claim 1, characterized in that, The first retaining wall (410) has a first side (411), a second side (412), a third side (413) and a fourth side (414) connected end to end in sequence. The first side (411) and the third side (413) are arranged opposite to each other, and the second side (412) and the fourth side (414) are arranged opposite to each other. The first side (411) is connected to the bottom of the cell receiving groove (110), the third side (413) is connected to the second retaining wall (420), and one of the second side (412) and the fourth side (414) is connected to the side wall of the cell receiving groove (110).

4. The battery according to claim 3, characterized in that, The angle between the first retaining wall (410) and the second retaining wall (420) is a right angle.

5. The battery according to claim 3, characterized in that, The second retaining wall (420) has an adjacent first connecting edge (421) and a second connecting edge (422), the first connecting edge (421) being connected to the third side (413), and the second connecting edge (422) being located on the side of the first retaining wall (410) connected to the side wall of the cell receiving tank (110) and connected to the side wall of the cell receiving tank (110).

6. The battery according to claim 1, characterized in that, The first retaining wall (410) has a first weight reduction hole (415), which penetrates the first retaining wall (410) along the first direction (X).

7. The battery according to claim 1, characterized in that, The bracket body (100) is provided with a circuit board mounting area (120) arranged in parallel with the cell receiving slot (110). The circuit board mounting area (120) and the cell receiving slot (110) are connected through the communication port (111). The circuit board mounting area (120) is used to mount the circuit board (300) of the battery.

8. The battery according to claim 7, characterized in that, The circuit board mounting area (120) is provided with a plurality of positioning protrusions (130), and the plurality of positioning protrusions (130) are positioned and engaged with the circuit board (300); The support body (100) is also provided with a reinforcing rib (140), and the limiting member (400) is connected to at least one of the positioning protrusions (130) opposite to it through the reinforcing rib (140). The reinforcing rib (140) is located between the first retaining wall (410) and the positioning protrusion (130) opposite to it.

9. The battery according to claim 1, characterized in that, The bracket body (100) has a first cell receiving area (101), a circuit board mounting area (120) and a second cell receiving area (102) arranged at intervals along the first direction (X). The first cell receiving area (101) and the second cell receiving area (102) are each provided with a plurality of cell receiving slots (110). The plurality of cell receiving slots (110) of the first cell receiving area (101) and the plurality of cell receiving slots (110) of the second cell receiving area (102) are arranged at intervals along the third direction (Z) of the bracket body (100). The circuit board mounting area (120) is connected to each of the battery cell receiving slots (110) through the communication port (111), and each of the battery cell receiving slots (110) is provided with at least one of the limiting members (400). The first direction (X), the second direction (Y), and the third direction (Z) intersect each other.

10. The battery according to claim 1, characterized in that, The bottom of the cell receiving groove (110) is provided with a second weight reduction hole (112). Along the second direction (Y), the orthographic projection outline of the cell body (210) is located outside the orthographic projection outline of the second weight reduction hole (112).

Images