Silica gel buffer gasket for battery cell stacking

Abstract

The utility model discloses a silica gel buffer gasket for stacking battery cells, which comprises a buffer gasket main body, the shape of the buffer gasket main body is set to be rectangular-ambulatory-plane, the middle waste material of the buffer gasket is incompletely cut off, and a micro connecting port for breaking the middle waste material and the gasket main body is reserved; the cushion pad can be compatible with various conditions, the problem that two kinds of cushion pads need to be switched in a traditional method is solved, the four micro connecting ports are designed, a user can easily tear down middle waste materials, the overall working hours are not affected, the middle part is the waste materials, additional material cost is not increased, and in the field use process, the cushion pad is convenient to use, and the cost is low. Abnormal conditions can be quickly verified and solved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and particularly relates to a highly compatible buffer gasket for battery cell stacking and its application, especially a solution to the problem of insufficient or excessive pushing force caused by the thickness tolerance of battery cells. Background Technique

[0002] During the production process of energy storage modules, the thickness of battery cells has a tolerance of ±0.5mm, which makes the cumulative tolerance after combining eight battery cells may reach 4mm. During the stacking process of battery cells, problems of insufficient pushing force or excessive pushing force are often encountered, resulting in the dropping of battery cells or damage to internal materials, thus affecting the service life and overall performance of battery cells.

[0003] Therefore, aiming at this kind of problem of insufficient or excessive pushing force caused by the thickness tolerance of battery cells, we need a highly compatible buffer gasket for battery cell stacking to solve the above problems. Summary of the Invention

[0004] The purpose of the utility model is to provide a silicone buffer gasket for battery cell stacking to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A silicone buffer gasket for battery cell stacking includes a buffer gasket main body. The shape of the buffer gasket main body is set as a square frame shape with a hole in the middle. The middle waste material of the buffer gasket is not completely cut off and a micro-connection is reserved for separating the middle waste material and the buffer gasket main body.

[0007] As a further scheme of the utility model, the micro-connection is arranged at the four corner positions of the middle waste material.

[0008] As a further scheme of the utility model, a release paper is adhered to the surface of the buffer gasket main body.

[0009] As a further step of the utility model, the buffer gasket main body is provided with a paper tearing right angle for facilitating the tearing of the release paper.

[0010] As a further step of the utility model, the micro-connection on one side of the paper tearing right angle is set as an anti-break micro-connection, and the size of the anti-break micro-connection is larger than the size of the micro-connections on the other sides.

[0011] As a further step of the utility model, the anti-break micro-connection is a right-angle notch at the corner position of the middle waste material.

[0012] As a further step of the utility model, the buffer gasket main body is made of a soft silicone fireproof material.

[0013] It should be noted that in the translation of the text, there may be some inaccuracies in the understanding of the original text. For example, the description of the shape of the buffer gasket main body in the original text is "回字形", which is literally "square frame shape with a hole in the middle", and this translation may not be completely in line with the intention of the original text. It is recommended to check and correct according to the actual situation.Compared with the prior art, the beneficial effects of this utility model are:

[0014] Reduced material changeover: A single cushioning pad can accommodate multiple situations, avoiding the problem of needing to switch between two types of cushioning pads in traditional methods;

[0015] Simplified waste disposal: The four micro-connection ports allow users to easily tear off the waste material in the middle without affecting the overall work time;

[0016] Reduce material costs: The middle part is waste material, so no additional material costs are incurred;

[0017] Quickly handle anomalies: In field use, it can quickly verify and resolve abnormal situations, improving work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Buffer pad body; 2. Tear-off right angle; 3. Anti-break micro-connection opening; 4. Micro-connection opening; 5. Blade edge. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 This utility model provides a technical solution:

[0024] A silicone buffer pad for stacked battery cells, such as Figure 1 The blade 5 shown in the diagram performs an incomplete cut on the buffer pad body 1. The buffer pad body 1 measures 160mm x 180mm. One corner of the buffer pad body 1 is designed as a right angle 2 for easy tearing of the release paper, while the other corners are rounded. A micro-connection 4 is shown in the diagram. Figure 1The micro-connection port 4 is 1mm in size, while the anti-breakage micro-connection port 3 has a length of 5mm on each side at one of the corners to hold the release paper and tear it off in the middle.

[0025] The main body of the buffer pad 1 is made of fire-retardant silicone material with the softest hardness of 30-40 Shore A. The shape is designed as a U-shape. The waste material in the middle of the main body of the buffer pad 1 is not completely cut off, leaving a 1.0mm micro-connection opening. The purpose of the design is to make it convenient for users to tear off the waste material in the middle during normal use.

[0026] When the cell material is at its upper limit, the force applied to the cell is adjusted (normally controlled between 1000-4000N) to ensure that the stress on the cell is within a safe range.

[0027] Specifically:

[0028] When the pushing force is less than 1000N, it may cause the battery cell to fall.

[0029] When the pushing force exceeds 4000N, it may cause excessive stress on the battery cell, affecting its cycle life.

[0030] When the battery cell reaches its maximum thickness, the pushing force of the thruster should be maintained between 3000-4000N to ensure effective compression of the cell. Meanwhile, when the cell is too thin (lower limit), a buffer pad made of unremoved waste material can be added to each end of the cell, or one or more pads can be added in the middle, to ensure uniform force distribution and maintain a consistent compression ratio.

[0031] In practical applications, when the battery cell is too thick, users can tear off the waste material in the middle to ensure that the pushing force reaches 3000-4000N; when the battery cell is too thin, the untorn buffer pads can be added to both ends of the battery cell, or more buffer pads can be sandwiched in the middle to ensure that the battery cell is subjected to uniform force and the pushing force is controlled at about 1500N to maintain it within the safe pressure range.

[0032] Therefore, this invention can reduce material switching: a single buffer pad can accommodate multiple situations, avoiding the problem of needing to switch between two types of buffer pads in traditional methods.

[0033] Therefore, this utility model can simplify waste disposal: the four micro-connecting openings allow users to easily tear off the waste material in the middle without affecting the overall working time.

[0034] Therefore, this invention can reduce material costs: the middle part is waste material, which does not increase additional material costs.

[0035] Therefore, this utility model can quickly handle abnormalities: in field use, it can quickly verify and resolve abnormal situations, thereby improving work efficiency.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A silicone buffer pad for stacked battery cells, comprising a buffer pad body (1), characterized in that: The shape of the buffer gasket body (1) is set as a zigzag shape, and the intermediate waste of the buffer gasket is incompletely cut and a micro-connection port (4) for separating the intermediate waste and the buffer gasket body (1) is reserved.

2. The silicone buffer pad for battery cell stacking according to claim 1, characterized in that: The micro-connection port (4) is arranged at the four corner positions of the intermediate waste.

3. The silicone buffer pad for battery cell stacking according to claim 1, characterized in that: A release paper is adhered to the surface of the buffer gasket body (1).

4. The silicone buffer pad for battery cell stacking according to claim 3, characterized in that: The buffer gasket body (1) is provided with a paper-tearing right angle (2) for facilitating the tearing of the release paper.

5. The silicone buffer pad for battery cell stacking according to claim 4, characterized in that: The micro-connection port (4) on one side of the paper-tearing right angle (2) is set as an anti-break micro-connection port (3), and the size of the anti-break micro-connection port (3) is larger than the size of the micro-connection ports (4) on the other sides.

6. The silicone buffer pad for battery cell stacking according to claim 5, characterized in that: The anti-break micro-connection port (3) is a right-angle notch at the corner position of the intermediate waste.

7. The silicone buffer pad for battery cell stacking according to claim 1, characterized in that: The buffer gasket body (1) is made of a soft silicone fireproof material.

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