Battery cell packaging structure

Abstract

The embodiment of the utility model provides a battery cell packaging structure, and relates to the technical field of battery cell packaging. The battery cell packaging structure comprises a foam plate and a blister tray, the foam plate is provided with a plurality of first containing grooves, the blister tray is provided with a plurality of mounting parts, the blister tray is used for being arranged on the foam plate so that the mounting parts can be arranged in the first containing grooves respectively, and each mounting part is provided with a second containing groove used for mounting the top of a battery cell. When the battery cell packaging structure is used for packaging the battery cell, the foam plate can be separated from the top patch of the battery cell, so that the problem of smudginess of the top patch is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell packaging, and more specifically, to a battery cell packaging structure. 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 as an additive in the raw material production, 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 be present on the top patch during transportation, 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 structure, which can separate the foam board from the top patch of the battery cell, avoiding the problem of dirty top patches.

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

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

[0007] A foam board, which is provided with a plurality of first accommodation grooves; and

[0008] A blister tray, which is provided with a plurality of installation parts. The blister tray is used to be disposed on the foam board so that the plurality of installation parts are respectively disposed in the plurality of first accommodation grooves, and each installation part is provided with a second accommodation groove for installing the top of the battery cell.

[0009] In an optional embodiment, the bottom wall of each second accommodation groove is provided with a positive electrode through hole, a negative electrode through hole and an explosion-proof valve through hole, and the positive electrode through hole, the explosion-proof valve through hole and the negative electrode through hole are arranged at intervals in sequence.

[0010] In an optional embodiment, the bottom wall of each first accommodation groove is provided with a positive electrode installation groove, a negative electrode installation groove and an explosion-proof valve installation groove. The positive electrode installation groove, the explosion-proof valve installation groove and the negative electrode installation groove are arranged at intervals in sequence, and the positive electrode installation groove, the explosion-proof valve installation groove and the negative electrode installation groove are respectively arranged corresponding to the positive electrode through hole, the explosion-proof valve through hole and the negative electrode through hole.

[0011] In an alternative embodiment, when the blister tray is disposed on the foam board, the bottoms of the plurality of mounting portions respectively abut against the bottom walls of the plurality of first receiving grooves.

[0012] In an alternative embodiment, the foam board is further provided with a plurality of third receiving grooves, the plurality of third receiving grooves and the plurality of first receiving grooves are respectively located on opposite sides of the foam board, and the third receiving grooves are used for mounting the bottoms of the battery cells.

[0013] In an alternative embodiment, the plurality of first receiving grooves and the plurality of third receiving grooves are arranged in one-to-one correspondence.

[0014] In an alternative embodiment, the depth of the third receiving groove is 30 mm to 60 mm.

[0015] In an alternative embodiment, the depth of the first receiving groove is 20 mm to 70 mm, and the depth of the second receiving groove is 20 mm to 70 mm.

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

[0017] In an alternative embodiment, the material of the blister tray is one of PP, PC, PVC and nylon.

[0018] The beneficial effects of the embodiments of the present utility model include:

[0019] The battery cell packaging structure includes a foam board and a blister tray. The foam board is provided with a plurality of first receiving grooves, and the blister tray is provided with a plurality of mounting portions. The blister tray is used to be disposed on the foam board so that the plurality of mounting portions are respectively disposed in the plurality of first receiving grooves, and each mounting portion is provided with a second receiving groove for mounting the top of the battery cell. When packaging the battery cells, first assemble the blister tray and the battery cells so that the tops of the plurality of battery cells are respectively disposed in the plurality of second receiving grooves, and then mount the foam board on the blister tray and make the plurality of mounting portions respectively disposed in the plurality of first receiving grooves; through the arrangement of the blister tray, the foam board can be separated from the top stickers disposed on the tops of the battery cells, thereby avoiding the problem of soiling of the top stickers. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1Explosion diagram of the battery cell packaging structure provided by the embodiment of the present utility model;

[0022] Figure 2 is Figure 1 partial enlarged view at position A in;

[0023] Figure 3 Structural schematic diagram of the foam board provided by the embodiment of the present utility model.

[0024] Icon: 100 - battery cell packaging structure; 10 - foam board; 11 - first accommodation groove; 12 - positive electrode installation groove; 13 - negative electrode installation groove; 14 - explosion-proof valve installation groove; 15 - third accommodation groove; 20 - blister tray; 21 - installation part; 211 - second accommodation groove; 212 - positive electrode through hole; 213 - negative electrode through hole; 214 - explosion-proof valve through hole. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying 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 illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0027] It should be noted that: similar reference numerals and letters denote 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.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed when in 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 thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0029] In addition, terms such as "horizontal" and "vertical" do not require the components 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.

[0030] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" 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 components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] 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 in the production of EPS foam boards as an additive in the production of raw grains, 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 calcium accumulation. Since the foam board is in contact with the top patch of the battery cell during installation, during transportation, calcium elements will exist on the top patch, resulting in dirty top patches.

[0032] Based on this, please refer to Figures 1 - 3 , an embodiment of the present invention provides a battery cell packaging structure 100, which can effectively improve the above-mentioned technical problems, that is, it can separate the foam board 10 from the top patch of the battery cell, avoiding the problem of dirty top patches. The battery cell packaging structure 100 will be described in detail below.

[0033] Please refer to Figure 1 , Figure 1 is an exploded view of the battery cell packaging structure 100 provided in this embodiment. Combining Figure 1 , the battery cell packaging structure 100 includes a foam board 10 and a blister tray 20. The foam board 10 is provided with a plurality of first accommodation grooves 11, and the blister tray 20 is provided with a plurality of mounting parts 21. The blister tray 20 is used to be arranged on the foam board 10 so that the plurality of mounting parts 21 are respectively arranged in the plurality of first accommodation grooves 11, and each mounting part 21 is provided with a second accommodation groove 211 for installing the top of the battery cell.

[0034] That is to say, when packaging the battery cells, first assemble the blister tray 20 with the battery cells so that the tops of multiple battery cells are respectively arranged in multiple second accommodation grooves 211, and then install the foam board 10 on the blister tray 20, and make multiple installation parts 21 respectively arranged in multiple first accommodation grooves 11; through the setting of the blister tray 20, the foam board 10 can be separated from the top stickers arranged on the tops of the battery cells, thus avoiding the problem of top sticker contamination.

[0035] It should be noted that in some cases, the positive electrode post, explosion-proof valve and negative electrode post of the battery cell are all located on the same side of the battery cell, that is, they all protrude and are arranged on the top sticker. Therefore, in order to avoid the positive and negative electrode posts and the explosion-proof valve, please refer to Figure 2 , Figure 2 For Figure 1 the partial enlarged view at A in Figure 1 and Figure 2 , in this embodiment, a positive electrode through hole 212, a negative electrode through hole 213 and an explosion-proof valve through hole 214 are respectively opened on the bottom wall of each second accommodation groove 211, and the positive electrode through hole 212, the explosion-proof valve through hole 214 and the negative electrode through hole 213 are arranged at intervals in sequence.

[0036] During actual assembly, the positive electrode post of the battery cell extends out from the positive electrode through hole 212, the explosion-proof valve extends out from the explosion-proof valve through hole 214, and the negative electrode post extends out from the negative electrode through hole 213, so that the installation part 21 can better adapt to the top of the battery cell, improve the installation stability, and also avoid interference or abrasion of the electrode post and the explosion-proof valve during transportation.

[0037] Furthermore, in some implementation cases, after the positive electrode post and the explosion-proof valve extend out from the through holes, they will contact the foam board 10, that is, abut against the bottom wall of the first accommodation groove 11. Therefore, in order to better adapt to the installation of the electrode posts and the explosion-proof valve of the battery cell, in this embodiment, a positive electrode installation groove 12, a negative electrode installation groove 13 and an explosion-proof valve installation groove 14 are respectively opened on the bottom wall of each first accommodation groove 11, the positive electrode installation groove 12, the explosion-proof valve installation groove 14 and the negative electrode installation groove 13 are arranged at intervals in sequence, and the positive electrode installation groove 12, the explosion-proof valve installation groove 14 and the negative electrode installation groove 13 are respectively arranged corresponding to the positive electrode through hole 212, the explosion-proof valve through hole 214 and the negative electrode through hole 213.

[0038] In this way, the positive electrode installation groove 12, the explosion-proof valve installation groove 14 and the negative electrode installation groove 13 can further adapt to the installation of the positive electrode post and the explosion-proof valve of the battery cell, thereby further improving the installation stability of the battery cell during transportation, and at the same time, can further protect the positive and negative electrode posts and the explosion-proof valve.

[0039] It should be noted that in this embodiment, when the blister tray 20 is disposed on the foam board 10, that is, when the blister tray 20 is assembled with the foam board 10, the bottoms of the plurality of mounting portions 21 respectively abut against the bottom walls of the plurality of first receiving grooves 11. Through this arrangement, the bottom walls of the first receiving grooves 11 can support the bottoms of the mounting portions 21, and when the battery cells are installed in the second receiving grooves 211, better support can be provided for the battery cells, thereby further improving the installation stability.

[0040] When actually packaging the battery cells, in addition to packaging the tops of the battery cells, the bottoms of the battery cells also need to be packaged. Moreover, the battery cells can be stacked and packaged through the packaging structure. That is, after the tops of a group of battery cells are packaged through the packaging structure, another group of battery cells is stacked above the previous group of battery cells, and the bottoms of the other group of battery cells are continuously packaged through the packaging structure.

[0041] Therefore, in this embodiment, in order to improve the adaptability of the battery cell packaging structure 100, please refer to Figure 3 , Figure 3 which is the schematic structural diagram of the foam board 10 provided in this embodiment. Combining Figures 1 - 3 , the foam board 10 is further provided with a plurality of third receiving grooves 15. The plurality of third receiving grooves 15 and the plurality of first receiving grooves 11 are respectively located on opposite sides of the foam board 10, and the third receiving grooves 15 are used for installing the bottoms of the battery cells. That is to say, for the same foam board 10, it can be understood that the first receiving grooves 11 located on its back are used for installing the tops of the first group of battery cells, and the third receiving grooves 15 located on its reverse side are used for installing the bottoms of the second group of battery cells. In this way, by manufacturing the same battery cell packaging structure 100, the stacked packaging of multiple groups of multi-layer battery cells can be realized, saving costs and improving the packaging efficiency.

[0042] Furthermore, in this embodiment, the plurality of first receiving grooves 11 and the plurality of third receiving grooves 15 are arranged in one-to-one correspondence, that is, the arrangement directions of the plurality of first receiving grooves 11 and the plurality of third receiving grooves 15 are the same. Specifically, their extending directions are the same, so that the arrangement modes of each layer of battery cells after packaging are the same. Of course, in other embodiments, the arrangement modes of the plurality of first receiving grooves 11 and the plurality of third receiving grooves 15 can also be different. For example, the extending directions of the plurality of first receiving grooves 11 and the plurality of third receiving grooves 15 can form an angle. It is easy to understand that when the angle is 90 degrees, if the battery cells in one layer are arranged horizontally, then the battery cells in the other layer are arranged vertically, which is equivalent to the arrangement position formed by rotating the battery cells in the upper layer by 90 degrees for the battery cells in the lower layer.

[0043] Optionally, in this embodiment, the depth of the first receiving groove 11 is: 20 mm to 70 mm, and the depth of the second receiving groove 211 is: 20 mm to 70 mm. For example, the depth can be 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, etc. Of course, in some other embodiments, the depths of the first receiving groove 11 and the second receiving groove 211 can also be other values, and the specific depths of the two need to be determined according to the actual specifications of the packaged battery cell and the design requirements of the battery cell packaging structure 100.

[0044] Optionally, the depth of the third receiving groove 15 is: 30 mm to 60 mm. For example, the depth can be 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, etc. Similarly, in some other embodiments, the depth of the third receiving groove 15 can also be other values, and its specific depth needs to be determined according to the actual specifications of the packaged battery cell and the design requirements of the battery cell packaging structure 100.

[0045] It should be noted that, in this embodiment, the material of the foam board 10 is GPO (expandable polystyrene mixture beads), which has 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 sticker of the battery cell, thus avoiding the problem of soiling the top sticker and improving the cleanliness of the top of the battery cell.

[0046] Of course, in other embodiments, the material of the foam board 10 can also be EPO (polymer emulsion), which also does not contain calcium elements; or rather, the material of the foam board 10 can also be other foaming materials such as EPS (polystyrene foam), EPE (polyethylene foam), or EPP (polypropylene plastic foaming material).

[0047] In addition, in this embodiment, the material of the blister tray 20 is PP (polypropylene), which has the characteristics of chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties, and good high-abrasion processing performance. Of course, in other embodiments, the material of the blister tray 20 can also be other materials such as PC (polycarbonate), PVC (polyvinyl chloride), or nylon.

[0048] In summary, the embodiment of the present utility model provides a battery cell packaging structure 100. The battery cell packaging structure 100 includes a foam board 10 and a blister tray 20. The foam board 10 is provided with a plurality of first accommodation grooves 11, and the blister tray 20 is provided with a plurality of mounting parts 21. The blister tray 20 is configured to be disposed on the foam board 10 such that the plurality of mounting parts 21 are respectively disposed in the plurality of first accommodation grooves 11, and each mounting part 21 is provided with a second accommodation groove 211 for mounting the top of the battery cell. When packaging the battery cell, first assemble the blister tray 20 with the battery cell so that the tops of the plurality of battery cells are respectively disposed in the plurality of second accommodation grooves 211, and then mount the foam board 10 on the blister tray 20 and make the plurality of mounting parts 21 be respectively disposed in the plurality of first accommodation grooves 11. By providing the blister tray 20, the foam board 10 can be separated from the top sticker disposed on the top of the battery cell, thereby avoiding the problem of top sticker contamination.

[0049] 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 modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A battery cell packaging structure, characterized in that: include: A foam plate (10), wherein the foam plate (10) is provided with a plurality of first accommodating grooves (11); as well as A blister tray (20), the blister tray (20) being provided with a plurality of mounting portions (21), the blister tray (20) being used to be arranged on the foam plate (10), so that the plurality of mounting portions (21) are respectively arranged on the plurality of first receiving grooves (11), and each of the mounting portions (21) is provided with a second receiving groove (211) for mounting the top of a battery cell.

2. The battery cell packaging structure according to claim 1, characterized in that: The bottom wall of each second containing groove (211) is provided with a positive electrode through hole (212), a negative electrode through hole (213) and an explosion-proof valve through hole (214), and the positive electrode through hole (212), the explosion-proof valve through hole (214) and the negative electrode through hole (213) are arranged in sequence and spaced apart.

3. The battery cell packaging structure according to claim 2, characterized in that: The bottom wall of each of the first accommodating grooves (11) is provided with a positive electrode mounting groove (12), a negative electrode mounting groove (13) and an explosion-proof valve mounting groove (14); the positive electrode mounting groove (12), the explosion-proof valve mounting groove (14) and the negative electrode mounting groove (13) are arranged in sequence and spaced apart; and the positive electrode mounting groove (12), the explosion-proof valve mounting groove (14) and the negative electrode mounting groove (13) are arranged corresponding to the positive electrode through hole (212), the explosion-proof valve through hole (214) and the negative electrode through hole (213), respectively.

4. The battery cell packaging structure according to claim 1, characterized in that: When the blister tray (20) is arranged on the foam plate (10), the bottoms of the plurality of mounting portions (21) respectively abut against the bottom walls of the plurality of first accommodating grooves (11).

5. The battery cell packaging structure according to claim 1, characterized in that: The foam board (10) is also provided with a plurality of third accommodating grooves (15), the plurality of third accommodating grooves (15) and the plurality of first accommodating grooves (11) are respectively located on two opposite sides of the foam board (10), and the third accommodating grooves (15) are used for installing the bottom of the battery cell.

6. The battery cell packaging structure according to claim 5, characterized in that: The plurality of first accommodating grooves (11) and the plurality of third accommodating grooves (15) are arranged in a one-to-one correspondence.

7. The battery cell packaging structure according to claim 5, characterized in that: The depth of the third containing groove (15) is 30 mm to 60 mm.

8. The battery cell packaging structure according to claim 1, characterized in that: The depth of the first containing groove (11) is 20 mm to 70 mm, and the depth of the second containing groove (211) is 20 mm to 70 mm.

9. The battery cell packaging structure according to claim 1, characterized in that: The foam board (10) is made of EPS, EPE, EPP, GPO or EPO.

10. The battery cell packaging structure according to claim 1, characterized in that: The material of the blister tray (20) is one of PP, PC, PVC and nylon.

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