Battery cell packaging piece

Abstract

The embodiment of the utility model provides a battery cell packaging piece, and relates to the technical field of battery cell packaging. The cell packaging part comprises a first foam plate, a second foam plate and a separation membrane, the first foam plate is provided with a plurality of first fixing grooves, and the bottom wall of each first fixing groove is provided with a first pole through hole, an anti-explosion valve through hole and a second pole through hole which are sequentially arranged at intervals; the second foam plate is arranged on the side, away from the multiple first fixing grooves, of the first foam plate, and the separation film is arranged between the first foam plate and the second foam plate and used for separating the first pole through hole, the explosion-proof valve through hole and the second pole through hole from the second foam plate. According to the battery cell packaging piece, calcium elements accumulated on the top patch of the battery cell can be reduced, and the cleanliness of the top patch is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell packaging, and more specifically, to a battery cell packaging component. Background Art

[0002] With the continuous development of the new energy industry, the technology of power batteries is also constantly improving. In production and manufacturing, it is necessary to install, store and transport battery cells. Currently, EPS (Expanded Polystyrene) foam boards are usually used to install the battery cells on the foam boards for transportation.

[0003] However, since the EPS foam board contains calcium elements during production, which are used as additives in the production of raw granules, during the entire production and processing process, the water used for curing and high-temperature steaming and forming cannot clean the calcium elements, resulting in calcium accumulation. Since the foam board is in contact with the top patch of the battery cell during installation, calcium elements will exist on the top patch during transportation, thus causing the top patch to be dirty. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a battery cell packaging component, which can reduce the accumulation of calcium elements on the top patch of the battery cell and improve the cleanliness of the top patch.

[0005] The embodiments of the utility model are implemented as follows:

[0006] In a first aspect, the utility model provides a battery cell packaging component, comprising:

[0007] A first foam board, wherein the first foam board is provided with a plurality of first fixing grooves, and the bottom wall of each first fixing groove is provided with a first pole hole, an explosion-proof valve hole and a second pole hole which are arranged at intervals in sequence;

[0008] A second foam board, which is arranged on a side of the first foam board away from the plurality of first fixing grooves; and

[0009] A separation film, which is arranged between the first foam board and the second foam board to separate the first pole hole, the explosion-proof valve hole and the second pole hole from the second foam board.

[0010] In an optional embodiment, the second foam board is provided with a plurality of second fixing grooves, and the plurality of second fixing grooves are arranged on a side of the second foam board away from the separation film.

[0011] In an optional embodiment, the plurality of second fixing grooves are arranged in one-to-one correspondence with the plurality of first fixing grooves.

[0012] In an alternative embodiment, the depth of the second fixing groove is 30 mm to 60 mm.

[0013] In an alternative embodiment, the depth of the first fixing groove is 20 mm to 70 mm.

[0014] In an alternative embodiment, the battery cell packaging member further includes a plurality of fixing members, and the first foam board is fixedly connected to the second foam board through the plurality of fixing members.

[0015] In an alternative embodiment, the fixing member is a plastic nail. The first foam board is provided with a plurality of first mounting holes, and the second foam board is provided with a plurality of second mounting holes. The plurality of second mounting holes are arranged in one-to-one correspondence with the plurality of first mounting holes; the plastic nails are simultaneously passed through the first mounting holes and the second mounting holes.

[0016] In an alternative embodiment, the material of the first foam board is EPS, EPE, EPP, GPO or EPO.

[0017] In an alternative embodiment, the material of the second foam board is EPS, EPE, EPP, GPO or EPO.

[0018] In an alternative embodiment, the material of the separation film is one of PP, PC, PVC and PE.

[0019] The beneficial effects of the embodiments of the present utility model include:

[0020] The battery cell packaging member includes a first foam board, a second foam board and a separation film. The first foam board is provided with a plurality of first fixing grooves, and the bottom wall of each first fixing groove is provided with a first pole hole, an explosion-proof valve hole and a second pole hole which are arranged at intervals in sequence; the second foam board is arranged on one side of the first foam board away from the plurality of first fixing grooves, and the separation film is arranged between the first foam board and the second foam board to separate the first pole hole, the explosion-proof valve hole and the second pole hole from the second foam board.

[0021] Since the positive and negative pole posts and the explosion-proof valve of the battery cell are all arranged on the top patch of the battery cell, when packaging the battery cell, the first fixing groove of the first foam board is installed on the top of the battery cell, and the positive pole post, the explosion-proof valve and the negative pole post located on the top of the battery cell respectively extend out from the first pole hole, the explosion-proof valve hole and the second pole hole; through the arrangement of the separation film, the extended positive and negative pole posts and the explosion-proof valve can be separated from the second foam board, thereby avoiding the problem of dirt caused by the calcium element contained in the second foam board falling onto the top patch of the battery cell through the through hole after accumulation. Therefore, the battery cell packaging member can reduce the accumulation of calcium element on the top patch of the battery cell and improve the cleanliness of the top patch. Description of the Drawings

[0022] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 It is an exploded view of the battery cell packaging member provided by the embodiment of the present utility model;

[0024] Figure 2 It is a schematic structural diagram of the first foam board provided by the embodiment of the present utility model;

[0025] Figure 3 It is a schematic structural diagram of the second foam board provided by the embodiment of the present utility model.

[0026] Icons: 100 - battery cell packaging member; 10 - first foam board; 11 - first fixing groove; 12 - first pole column through hole; 13 - explosion-proof valve through hole; 14 - second pole column through hole; 15 - first mounting hole; 20 - second foam board; 21 - second fixing groove; 22 - second mounting hole; 30 - separation film; 40 - fixing member. Specific embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] It should be noted that: Similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] As described in the background art, in production and manufacturing, it is necessary to install, store, and transport battery cells. Currently, EPS (Expanded Polystyrene) foam boards are usually used to install the battery cells on the foam boards for transportation. However, since there is calcium element in the production of EPS foam boards, which is used as an additive in the production of raw granules, during the entire production and processing process, the water used for curing and high-temperature steaming and forming cannot clean the calcium element, resulting in the accumulation of calcium; since the foam board is in contact with and installed on the top patch of the battery cell, during transportation, calcium element will exist on the top patch, resulting in the soiling of the top patch.

[0034] Based on this, please refer to Figures 1 - 3 , an embodiment of the present utility model provides a battery cell packaging member 100, which can effectively improve the above-mentioned technical problems, that is, it can reduce the accumulation of calcium element on the top patch of the battery cell and improve the cleanliness of the top patch. The battery cell packaging member 100 will be described in detail below.

[0035] Please refer to Figure 1 , Figure 1Explosion diagram of the battery cell packaging member 100 provided in this embodiment, in combination with Figure 1 , the battery cell packaging member 100 includes a first foam board 10, a second foam board 20, and a separator film 30. Specifically, please refer to Figure 2 , Figure 2 Structural schematic diagram of the first foam board 10 provided in this embodiment, in combination with Figure 1 and Figure 2 , the first foam board 10 is provided with a plurality of first fixing grooves 11, and the bottom wall of each first fixing groove 11 is provided with a first pole through hole 12, an explosion-proof valve through hole 13, and a second pole through hole 14 that are sequentially arranged at intervals; the second foam board 20 is disposed on a side of the first foam board 10 away from the plurality of first fixing grooves 11, and the separator film 30 is disposed between the first foam board 10 and the second foam board 20 for separating the first pole through hole 12, the explosion-proof valve through hole 13, and the second pole through hole 14 from the second foam board 20.

[0036] Since the positive and negative poles and the explosion-proof valve of the battery cell are all arranged on the top sticker of the battery cell, when packaging the battery cell, the first fixing groove 11 of the first foam board 10 is installed on the top of the battery cell, and the positive pole, the explosion-proof valve, and the negative pole located on the top of the battery cell respectively extend out from the first pole through hole 12, the explosion-proof valve through hole 13, and the second pole through hole 14; through the arrangement of the separator film 30, the extended positive and negative poles and the explosion-proof valve can be separated from the second foam board 20, thereby avoiding the problem of dirt caused by the calcium element contained in the second foam board 20 falling onto the top sticker of the battery cell through the through holes after accumulation. Therefore, the battery cell packaging member 100 can reduce the accumulation of calcium element on the top sticker of the battery cell and improve the cleanliness of the top sticker.

[0037] It should be noted that when packaging the battery cell, in addition to packaging the top of the battery cell through the packaging member, the bottom of the battery cell also needs to be packaged. Moreover, in order to package a large number of battery cells together, the battery cells can also be stacked and placed through the packaging member. Specifically, after the top of a group of battery cells is assembled through the packaging member, another group of battery cells is stacked above the previous group of battery cells, and the bottom of the other group of battery cells is also packaged through the packaging member, so as to realize the multi-layer stacked packaging of multiple groups of battery cells.

[0038] Therefore, in this embodiment, in order to improve the adaptability of the battery cell packaging member 100, please continue to combine Figure 1 and Figure 2, the second foam board 20 is provided with a plurality of second fixing grooves 21, and the plurality of second fixing grooves 21 are arranged on the side of the second foam board 20 away from the separation film 30. It is easy to understand that the first fixing groove 11 of the first foam board 10 is used to install the top of the first group of battery cells, and the second fixing groove 21 of the second foam board 20 is used to install the bottom of the second group of battery cells. In this way, by using the same battery cell packaging member 100, multi-layer stacking and packaging of a large number of battery cells can be achieved, thus saving costs and improving packaging efficiency.

[0039] Further, in this embodiment, the plurality of second fixing grooves 21 are arranged in one-to-one correspondence with the plurality of first fixing grooves 11. That is to say, the arrangement direction of the plurality of first fixing grooves 11 is the same as the arrangement direction of the plurality of second fixing grooves 21, or it can be understood that their extension directions are the same, so that the arrangement mode of each layer of battery cells after packaging is the same.

[0040] Of course, in other embodiments, the arrangement modes of the plurality of first fixing grooves 11 and the plurality of second fixing grooves 21 may also be different. For example, the extension directions of the plurality of first fixing grooves 11 and the plurality of second fixing grooves 21 form an angle. It is easy to understand that when the angle is 90 degrees, if one layer of battery cells is installed horizontally, the battery cells of the other layer are installed vertically, which is equivalent to the installation position of the upper layer of battery cells being the installation position formed after the lower layer of battery cells is rotated 90 degrees.

[0041] Optionally, in this embodiment, the depth of the first fixing groove 11 is: 20 mm to 70 mm. For example, the depth can be 20 mm, 30 mm, 40 mm, 50 mm, 60 mm or 70 mm, etc. Of course, in some other embodiments, the depth of the first fixing groove 11 can also be other values, and its specific depth needs to be determined according to the actual specifications of the packaged battery cells and the design requirements of the battery cell packaging member 100.

[0042] Optionally, the depth of the second fixing groove 21 is: 30 mm to 60 mm. For example, the depth can be 20 mm, 30 mm, 40 mm, 50 mm or 60 mm, etc. Similarly, in some other embodiments, the depth of the second fixing groove 21 can also be other values, and its specific depth also needs to be determined according to the actual specifications of the packaged battery cells and the design requirements of the battery cell packaging member 100.

[0043] Please continue to combine Figure 1, To better achieve the connection and fixation of the first foam board 10 and the second foam board 20, in this embodiment, the battery cell packaging 100 further includes a plurality of fixing members 40, and the first foam board 10 is fixedly connected to the second foam board 20 through the plurality of fixing members 40. Through the arrangement of the fixing members 40, while fixing the first foam board 10 and the second foam board 20, the separator film 30 can also be firmly clamped by the two, avoiding the situation that the separator film 30 falls off due to shaking during the transportation of the battery cell and the packaging.

[0044] It should be noted that in other embodiments, the fixing members 40 may not be provided, but the fixation can be achieved through the snap-fit cooperation between the first foam board 10 and the second foam board 20, and the separator film 30 is clamped. Specifically, one of the first foam board 10 and the second foam board 20 can be provided with a card slot, and the other is provided with a snap projection. Through the cooperation between the card slot and the snap projection, the fixation of the first foam board 10 and the second foam board 20 is facilitated.

[0045] Furthermore, in this embodiment, the fixing member 40 is a plastic nail. Specifically, please refer to Figure 3 , Figure 3 is a schematic structural diagram of the second foam board 20 provided in this embodiment. Combining Figures 1 - 3 , the first foam board 10 is provided with a plurality of first mounting holes 15, and the second foam board 20 is provided with a plurality of second mounting holes 22. The plurality of second mounting holes 22 are arranged in one-to-one correspondence with the plurality of first mounting holes 15; the plastic nails are simultaneously inserted through the first mounting holes 15 and the second mounting holes 22.

[0046] It is easy to understand that the plastic nail has a certain elasticity. Through the interference fit between the plastic nail and the first mounting hole 15 and the second mounting hole 22, the fixation of the first foam board 10 and the second foam board 20 is achieved. Of course, in other embodiments, the fixing member 40 can also be a screw. Correspondingly, both the first mounting hole 15 and the second mounting hole 22 are threaded holes, and the fixation of the two can also be achieved through the threaded connection and cooperation. In addition, the fixing member 40 can be a binding band, etc., and the first foam board 10 and the second foam board 20 can be directly bound.

[0047] It should be noted that in this embodiment, the materials of both the first foam board 10 and the second foam board 20 are GPO (expandable polystyrene mixture beads), which have the characteristics of high temperature resistance, moisture resistance, impact resistance, and stable insulation performance. Moreover, the GPO material does not contain calcium elements, so that there will be no accumulation of calcium elements in the top stickers of the battery cell, thus avoiding the problem of dirty top stickers and improving the cleanliness of the top of the battery cell.

[0048] Of course, in other embodiments, the materials of the first foam board 10 and the second foam board 20 can also be EPO (polymer emulsion), which also does not contain calcium; or rather, the materials of the first foam board 10 and the second foam board 20 can also be other foaming materials such as EPS (polystyrene foam), EPE (polyethylene foam), or EPP (polypropylene plastic foaming material).

[0049] In addition, in this embodiment, the material of the separation film 30 is PP (polypropylene), which has characteristics such as chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties, and good high-abrasion resistance processing performance. Of course, in other embodiments, the material of the separation film 30 can also be other materials such as PC (polycarbonate), PVC (polyvinyl chloride), or PE (polyethylene).

[0050] In summary, the embodiment of the present utility model provides a battery cell packaging member 100, which includes a first foam board 10, a second foam board 20, and a separation film 30. The first foam board 10 is provided with a plurality of first fixing grooves 11, and the bottom wall of each first fixing groove 11 is provided with a first pole column through hole 12, an explosion-proof valve through hole 13, and a second pole column through hole 14 that are arranged at intervals in sequence; the second foam board 20 is disposed on a side of the first foam board 10 away from the plurality of first fixing grooves 11, and the separation film 30 is disposed between the first foam board 10 and the second foam board 20 to separate the first pole column through hole 12, the explosion-proof valve through hole 13, and the second pole column through hole 14 from the second foam board 20. Since the positive and negative pole columns and the explosion-proof valve of the battery cell are all arranged on the top sticker of the battery cell, when packaging the battery cell, the first fixing grooves 11 of the first foam board 10 are installed on the top of the battery cell, and the positive pole column, the explosion-proof valve, and the negative pole column located on the top of the battery cell respectively extend out from the first pole column through hole 12, the explosion-proof valve through hole 13, and the second pole column through hole 14; through the arrangement of the separation film 30, the extended positive and negative pole columns and the explosion-proof valve can be separated from the second foam board 20, thereby avoiding the problem of dirt caused by the calcium element contained in the second foam board 20 accumulating and falling onto the top sticker of the battery cell through the through holes.

[0051] Therefore, the battery cell packaging member 100 can reduce the accumulation of calcium elements on the top sticker of the battery cell and improve the cleanliness of the top sticker.

[0052] The above description is only for the specific embodiments of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A battery cell package, characterized in that: include: A first foam plate (10), the first foam plate (10) being provided with a plurality of first fixing grooves (11), the bottom wall of each of the first fixing grooves (11) being provided with a first pole through hole (12), an explosion-proof valve through hole (13) and a second pole through hole (14) which are sequentially arranged at intervals; a second foam plate (20), the second foam plate (20) being arranged on a side of the first foam plate (10) away from the plurality of first fixing grooves (11); and A separation membrane (30), the separation membrane (30) being arranged between the first foam plate (10) and the second foam plate (20) so as to separate the first pole through hole (12), the explosion-proof valve through hole (13) and the second pole through hole (14) from the second foam plate (20).

2. The battery cell package according to claim 1, characterized in that: The second foam plate (20) is provided with a plurality of second fixing grooves (21), and the plurality of second fixing grooves (21) are arranged on a side of the second foam plate (20) away from the separation membrane (30).

3. The battery cell package according to claim 2, characterized in that: The plurality of second fixing grooves (21) are arranged in one-to-one correspondence with the plurality of first fixing grooves (11).

4. The battery cell package according to claim 2, characterized in that: The depth of the second fixing groove (21) is 30 mm to 60 mm.

5. The battery cell package according to claim 1, characterized in that: The depth of the first fixing groove (11) is 20 mm to 70 mm.

6. The battery cell package according to claim 1, characterized in that: The battery cell package (100) further comprises a plurality of fixing members (40), and the first foam sheet (10) is fixedly connected to the second foam sheet (20) via the plurality of fixing members (40).

7. The battery cell package according to claim 6, characterized in that: The fixing member (40) is a plastic nail, the first foam board (10) is provided with a plurality of first mounting holes (15), the second foam board (20) is provided with a plurality of second mounting holes (22), the plurality of second mounting holes (22) are arranged in a one-to-one correspondence with the plurality of first mounting holes (15); the plastic nail is simultaneously passed through the first mounting hole (15) and the second mounting hole (22).

8. The battery cell package according to claim 1, characterized in that: The material of the first foam board (10) is EPS, EPE, EPP, GPO or EPO.

9. The battery cell package according to claim 1, characterized in that: The material of the second foam board (20) is EPS, EPE, EPP, GPO or EPO.

10. The battery cell package (100) according to claim 1, characterized in that: The material of the separation membrane (30) is one of PP, PC, PVC and PE.

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