CELL ARRANGE SEPARATOR, CELL ARRANGEMENT AND ELECTRICAL DEVICE

Abstract

A separator (100) for a cell arrangement (1000) comprises an insulating element (10) and at least one support element (20). At least one first cavity (11) is formed on the insulating element (10), and the support element (20) is further arranged in the first cavity (11) to provide support for the insulating element (10).

Description

CROSS-REFERENCE TO RELATED REGISTRATIONS

[0001] This application claims priority over Chinese patent application No. 202320423300,5, filed with the Chinese National Intellectual Property Administration on February 28, 2023, entitled “SEPARATOR FOR CELL ASSEMBLY, CELL ASSEMBLY, AND ELECTRICAL DEVICE”, which is incorporated herein by reference in its entirety. TECHNICAL AREA

[0002] The present disclosure relates to the technical field of battery technologies and in particular to a separator for a cell arrangement, a cell arrangement and an electrical device. BACKGROUND

[0003] In conventional technologies, cells within some battery packs are arranged in a U-shaped loop configuration, where an input end cell and an output end cell, positioned close to each other, create a large voltage difference. If the insulation between the two cells fails, a serious high-voltage safety hazard arises. SUMMARY

[0004] The present disclosure aims to solve at least one of the technical problems existing in conventional technologies. Therefore, a first objective of the present disclosure is to provide a separator for a cell arrangement in order to improve the structural strength and insulating performance of the separator.

[0005] A second objective of the present disclosure is to provide a cell arrangement that includes the above separator.

[0006] A third objective of the present disclosure is to provide an electrical device incorporating the above cell arrangement.

[0007] A separator for a cell arrangement according to an embodiment of a first aspect of the present disclosure comprises an insulating element and at least one support element. At least one first cavity is formed on the insulating element, and the support element is arranged in the first cavity to provide support for the insulating element.

[0008] According to the separator described in this disclosure, the separator comprises an insulating element and a support element. The insulating element can separate different cells with a specific stress difference within the cell array along a thickness direction of the cell to prevent short circuits within the cell array. The support element is located in the first cavity so that it can support the insulating element within the first cavity, thereby improving the structural strength of the separator. In this way, if the cell array experiences thermal runaway, softening failure of the separator is avoided, reducing the probability of insulation failure between the cells as a result of softening of the insulating element and thus improving cell protection in the event of thermal runaway.

[0009] In some embodiments, when the temperature is greater than or equal to 300 °C, the structural strength of the supporting element is greater than the structural strength of the insulating element.

[0010] In some embodiments, the support element is a metal element.

[0011] In some embodiments, a second cavity is formed on the support element.

[0012] In some embodiments, the cross-sectional shape of the support element differs from the cross-sectional shape of the first cavity.

[0013] In some embodiments, several first cavities are formed on the insulating element, the several first cavities are arranged along a width direction of the insulating element, two adjacent first cavities are separated by a separating section, and at least one separating section is arranged obliquely relative to a thickness direction of the insulating element.

[0014] In some embodiments, an outer peripheral surface of the support element is coated with an insulating layer, and the insulating layer is arranged between the support element and the insulating element.

[0015] In some embodiments, at least one through-hole is provided on the insulating layer, an adhesive is arranged at the through-hole, and the support element is connected to the insulating element by the adhesive.

[0016] In some embodiments, the insulating layer is mica paper.

[0017] In some embodiments, a heat-resistant temperature of the insulating layer is T1, a heat-resistant temperature of the insulating element is T2, and T1 and T2 satisfy: T1 > T2.

[0018] In some embodiments, T1 and T2 further satisfy: 500 °C ≤ T1 ≤ 1000 °C and 250 °C ≤ T2 ≤ 280 °C.

[0019] In some embodiments, the insulating element is a glass fiber composite material element or a carbon fiber composite material element.

[0020] In some embodiments, the insulating element is an extruded molded element.

[0021] A cell arrangement according to an embodiment of a second aspect of the present disclosure comprises: a first cell, a second cell, and a separator. A voltage difference exists between the first cell and the second cell; the voltage difference is greater than a predetermined value; the separator is the separator for a cell arrangement described in one of the preceding embodiments; and the separator is arranged between the first cell and the second cell.

[0022] In some embodiments, a positive terminal of the first cell is arranged adjacent to a negative terminal of the second cell.

[0023] In some embodiments, the cell arrangement further includes at least one third cell, and the at least one third cell is suitable for connecting in series with the first cell and the second cell.

[0024] In some embodiments, the first cell and the second cell are arranged along a thickness direction of the first cell and the second cell, and the positive terminal of the first cell and the negative terminal of the second cell are arranged on one side of a longitudinal direction of the first cell and the second cell.

[0025] In some embodiments, the cell arrangement includes a first cell group and a second cell group, the first cell group and the second cell group each include a plurality of cells, and the first cell group and the second cell group are connected in series; and the first cell group includes the first cell, the second cell group includes the second cell, the first cell is suitable for connecting to an entire positive derivative element of the first cell group, and the second cell is suitable for connecting to an entire negative derivative element of the second cell group.

[0026] According to one embodiment of a third aspect of the present disclosure, the electrical device includes the cell arrangement described in the preceding embodiments.

[0027] Additional aspects and benefits of this revelation are partly introduced in the following descriptions, partly emerge from the following descriptions, or are learned through the practical application of this revelation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The foregoing and / or additional aspects and advantages of the present disclosure will become apparent and easily understandable with the descriptions of embodiments with reference to the following drawings: Fig. Figure 1 is a partially schematic representation of a cell arrangement according to an embodiment of the present disclosure; Fig. Figure 2 is a representation of a separator according to an embodiment of the present disclosure; Fig. 3 is a representation of an insulating layer according to an embodiment of the present disclosure; Fig. Figure 4 is a representation of a support element according to an embodiment of the present disclosure; Fig. Figure 5 is a schematic representation of an insulating layer and a support element in an assembled state according to an embodiment of the present disclosure; and Fig. Figure 6 is a schematic block representation of the structure of an electrical device according to an embodiment of the present disclosure. Reference symbol:

[0029] 1000: Cell arrangement; 100: Separator; 10: Insulating element; 11: First cavity; 20: Support element; 21: Second cavity; 30: Insulating layer; 31: Through hole; 40: Separation section; 200: first cell; 201: positive connection; 300: second cell; 301: negative connection; 400: third cell; 2000: electrical device. DESCRIPTION OF EXECUTION FORMS

[0030] Embodiments of the present disclosure are described in detail below. Embodiments described with reference to the accompanying drawings are exemplary. A separator 100 for a cell arrangement 1000 according to embodiments of the present disclosure is described below with reference to Fig. 1 to Fig. As described in section 5, the separator 100 comprises an insulating element 10 and at least one support element 20. The separator 100 has a longitudinal direction, a width direction, and a thickness direction. The longitudinal direction, width direction, and thickness direction of the separator 100 correspond to a longitudinal direction A, a width direction B, and a thickness direction C of a cell. A dimension of the cell in the thickness direction C is less than or equal to a dimension of the cell in the longitudinal direction A and a dimension of the cell in the width direction B.

[0031] In particular, as in Fig. 1 and Fig. As shown in Figure 2, at least one first cavity 11 is formed on the insulating element 10, and the first cavity 11 extends along the longitudinal direction of the separator. The insulating element 10 can be an extruded molded element produced by an extrusion forming process during manufacturing, and the first cavity 11 can be formed during the extrusion forming process, thereby ensuring the structural strength of the insulating element 10. A support element 20 is further arranged in the first cavity 11 to support the insulating element 10.

[0032] According to the separator 100 of the embodiment of the present disclosure, the separator 100 comprises the insulating element 10 and the support element 20. The insulating element 10 can separate cells 200 with a predetermined voltage difference within the cell core arrangement 1000 along the thickness direction of the separator 100 in order to prevent a short circuit within the cell arrangement 1000. The support element 20 is arranged in the first cavity 11 so that the support element 20 can support the insulating element 10 in the first cavity 11, thereby improving the structural strength of the separator 100.In this way, if the cell assembly 1000 experiences thermal runaway, a softening failure of the separator 100 is avoided in order to reduce the probability of insulation failure between the cells as a result of softening of the insulating element 10, thereby improving the protection of the cells 200 if the cell assembly 1000 experiences thermal runaway.

[0033] In some embodiments, if the thermal runaway temperature of the cell arrangement 1000 exceeds 300 °C, the structural strength of the support element 20 is greater than the structural strength of the insulating element 10. This allows the insulating element 10 to be supported in a timely manner if its structural strength decreases, thereby improving its structural strength. This prevents the insulating element 10 from deforming during extrusion due to a reduction in structural strength, thus ensuring that the cell arrangement 1000 remains functionally intact.For example, if the insulating element 10 softens at a temperature of 280 °C and cannot effectively support the cell, and the cell assembly 1000 experiences thermal runaway, the temperature of which will exceed 400 °C. The cell will expand upon heating, consequently reducing the distance between cells of different polarities and creating a high-voltage hazard. This compromises the safe use of the cell assembly 1000. Therefore, the structural strength of the supporting element 20 is greater than that of the insulating element 10, allowing the insulating element 10 to be supported even if its structural strength is reduced, thereby improving its overall structural strength.This prevents the insulating element 10 from being deformed during heating and extrusion, thus preventing the separation effect of the cell 200 in the cell arrangement 1000 from being impaired, thereby improving the safety of the cell arrangement 1000.

[0034] Optionally, the support element 20 is a metal element, for example, a metal tube, which can be made of aluminum. The aluminum tube offers high structural strength and low weight. A second cavity 21 is formed on the metal tube, and the cross-sectional shape of the second cavity 21 is adapted to the cross-sectional shape of the first cavity 11, allowing the metal tube to be easily installed in the first cavity 11. This facilitates the support of the insulating element 10 by the metal tube. When the metal tube is positioned in the first cavity 11, an outer peripheral surface of the metal tube abuts at least part of an inner wall of the first cavity 11, thereby increasing the contact area between the metal tube and the insulating element 10, thus enabling the metal tube to better support the insulating element 10.The second cavity 21 can function as a smoke vent, allowing thick smoke generated by the cell assembly 1000 during thermal runaway to escape easily. This makes it easy to detect and respond to any problems with the cell assembly 1000 immediately. This reduces the risk associated with the cell assembly 1000, which uses the separator 100.

[0035] Optionally, the cross-sectional shape of the support element 20 differs from the cross-sectional shape of the first cavity 11. For example, as in Fig. As shown in Figure 2, the cross-sectional shape of the first cavity 11 can be trapezoidal, and the cross-sectional shape of the support element 20 can be rectangular. The rectangular support element 20 abuts the inner wall of the first cavity 11 in the thickness direction of the separator. Therefore, the cross-sectional shape of the support element 20 differs from the cross-sectional shape of the first cavity 11, thus facilitating the installation of the support element 20 and improving its installation efficiency.

[0036] In some embodiments, referring to Fig. 2. Several first cavities 11 are formed on the insulating element 10. These several first cavities 11 are arranged along a width direction of the insulating element 10. Two adjacent first cavities 11 are separated by a separating section 40, and at least one separating section 40 is arranged obliquely relative to a thickness direction of the insulating element 10. For example, two first cavities 11 are formed within the insulating element 10, and the separating section 40 is arranged between the two first cavities 11. The separating section 40 is arranged obliquely between the two first cavities 11 along the thickness direction of the insulating element 10 to improve the structural strength of the insulating element 10, thereby facilitating the installation of the support element 20. In this way, the support element 20 is supported, and the installation efficiency of both the support element 20 and the insulating element 10 can be improved.The support element 20 can be arranged in each of the first cavities 11, and the support element 20 is adapted to the first cavity 11. In a specific embodiment, the separating section 40 can be arranged along the thickness direction of the separator 100, that is, vertically on a large area of ​​the cell. Therefore, there are multiple first cavities 11, and the number of support elements 20 can be adjusted based on structural strength requirements. Thus, the multiple first cavities 11 on the separator 100 are provided to control the weight of the separator 100 when the separator 100 meets design requirements, thereby achieving a lightweight and thin design for the separator 100. In this way, the quality of the separator 100 is improved by facilitating the implementation of a lightweight and thin design for the cell arrangement 1000.

[0037] In some embodiments, such as in Fig. 2 and Fig. As shown in Figure 5, an outer peripheral surface of the support element 20 is coated with an insulating layer 30, and the insulating layer 30 is positioned between the support element 20 and the insulating element 10. The insulating layer 30 can be wound onto the outer peripheral surface of the support element 20 and installed on the support element 20 by joining it. The insulating layer 30 separates the support element 20 from the insulating element 10 to prevent a reduction in the insulating performance of the insulating element 10 and, consequently, an internal short circuit in the cell arrangement 1000. In this application, the insulating performance of the insulating layer 30 is higher than that of the insulating element 10. For example, the structural strength of the insulating element 10 is reduced under the influence of an external environment, and its insulating performance is reduced or may even fail.The insulating layer 30 is arranged to improve the protection of the support element 20, thus preventing an insulation failure of the separator 100 from affecting the normal use of the cell arrangement 1000. The insulating layer 30 can be mica paper. Mica paper exhibits good homogeneity, insulation, and thermal conductivity and can better separate the insulating element 10 from the support element 20, thereby improving the insulation of the support element 20. A backing adhesive can be applied to one side of the mica paper, and the mica paper is bonded to the support element 20 by this backing adhesive.

[0038] In some embodiments, such as in Fig. 3 and Fig. As shown in Figure 5, at least one through-hole 31 is provided on the insulating layer 30, an adhesive is applied to the through-hole 31, and the support element 20 is connected to the insulating element 10 by the adhesive. A delamination phenomenon occurs when the adhesive is applied to the insulating layer 30, making it difficult to attach the support element 20 to the insulating element 10. Therefore, the through-hole 31 is provided on the insulating layer 30, allowing the adhesive to be applied to it. Part of the adhesive is bonded to the support element 20, and the other part is bonded to the inner wall of the first cavity 11, thus enabling the installation and fastening of the support element 20, and allowing the insulating layer 30 to separate the support element 20 from the insulating element 10.There can be a plurality of through holes 31, and these plurality of through holes 31 are spaced along a longitudinal direction of the insulating element 10, namely the longitudinal direction A of the cell. An orthographic projection of the through hole 31 in the thickness direction of the insulating element 10 is arranged on a side face of the insulating element 10 in the thickness direction. Therefore, the through hole 31 is provided on the insulating layer 30 so that the adhesive bonds the insulating element 10 and the support element 20 at the through hole 31, thereby improving the stability and reliability of the installation of the insulating element 10 in the first cavity 11. In this way, the support element 20 is prevented from detaching from the first cavity 11, thus improving the structural strength of the separator 100.

[0039] Optionally, the heat-resistant temperature of the insulating layer 30 is T1, and the heat-resistant temperature of the insulating element 10 is T2, and T1 and T2 satisfy the condition: T1 > T2. In other words, the heat-resistant temperature of the insulating layer is higher than the heat-resistant temperature of the insulating element 10. If the insulating element 10 heats up, for example, if the cell assembly 1000 experiences thermal runaway, the resulting high temperature can cause the insulating element 10 to soften. The heat-resistant temperature of the insulating layer 30 is higher, so the insulating performance of the insulating layer can be maintained during thermal runaway, thus preventing the positive and negative terminals of the cell assembly 1000 from being connected by the support element 20 and causing a short circuit in the cell assembly 1000.The heat-resistant temperature is the temperature at which the mechanical strength of a material begins to decrease significantly; specifically, a temperature at which the strength and performance of the insulating layer 30 and / or the insulating element 10 are significantly reduced. Therefore, the heat-resistant temperature of the insulating layer 30 is controlled so that it is higher than the heat-resistant temperature of the insulating element 10. This further improves the insulation of the separator 100, ensuring the operational safety of the cell assembly 1000 in extreme environments.

[0040] Furthermore, T1 and T2 satisfy the following conditions: 500 °C ≤ T1 ≤ 1000 °C, and 250 °C ≤ T2 ≤ 280 °C. Therefore, the heat-resistant temperature of the insulating layer 30 and the heat-resistant temperature of the insulating element 10 are limited to improve the operational safety of the separator 100 while controlling the manufacturing costs of the separator 100.

[0041] In some embodiments, the insulating element 10 is a glass fiber composite material element or a carbon fiber composite material element. The fiber composite material element is used to improve the temperature resistance of the insulating element 10, thus providing good insulation and improving the insulating capacity of the separator 100. The glass fiber composite material element can be understood as a material produced from glass fiber as a matrix material through a specific molding process. The carbon fiber composite material element can be understood as a material produced from carbon fiber as a matrix material through a specific molding process.

[0042] According to the embodiment of the second aspect of the present disclosure, a cell arrangement 1000 comprises: a first cell 200, a second cell 300, and a separator 100. A voltage difference exists between the first cell 200 and the second cell 300, and the voltage difference is greater than a predetermined value. The separator 100 is the separator 100 for the cell arrangement 1000 of one of the preceding embodiments, and the separator 100 is arranged between the first cell 200 and the second cell 300.

[0043] With reference to Fig. 1 to Fig. In cell arrangement 1000, several cells are arranged along the thickness direction of cell 200, namely the thickness direction of separator 100. These several cells include the first cell 200 and the second cell 300. The voltage difference is formed between the first cell 200 and the second cell 300. For example, the first cell 200 and the second cell 300 are two cells located near a center. The first cell 200 and the second cell 300 are each an input end cell and an output end cell (that is, one cell connected to a whole positive derivative element and one cell connected to a whole negative derivative element in cell arrangement 1000). The voltage difference formed between the first cell 200 and the second cell 300 can be understood as a voltage difference between the whole positive derivative element and the whole negative derivative element.The separator 100 is positioned between the input and output cells. If the voltage difference between the input and output cells exceeds a preset value, a high-voltage safety issue can easily arise if the input and output cells are not isolated from each other. The separator 100 is positioned to effectively prevent the input and output cells from being in close proximity and thus avoiding a high-voltage safety problem.

[0044] For example, during operation of cell assembly 1000, the cells within the assembly can expand as they heat up during charging and discharging. If cell assembly 1000 experiences thermal runaway, high-temperature atmospheric pressure is generated, causing insulating element 10 to soften due to heating. Insulating element 10 is then compressed by the first cell 200 and the second cell 300, which are adjacent to it. This can easily cause insulating element 10 to fail to support and separate the first cell 200 and the second cell 300. As a consequence, the gap between the first cell 200 and the second cell 300 decreases. Since the pressure difference between the first cell 200 and the second cell 300 is greater than the predetermined value, there is a high risk of a high-voltage safety issue.If the structural strength and insulation performance of the separator 100 are reduced, a safety problem arises if the cell assembly 1000 experiences thermal runaway, consequently compromising operational safety. Here, the insulation of the insulating element 10 is improved. Additionally, the support element 20 is arranged in the first cavity 11 formed on the insulating element 10, and the insulating layer 30 is arranged on the outer peripheral surface of the support element 20, thus improving the structural strength and insulation of the separator 100.In this way, the influence of high temperature and high voltage shock on the separator 100 during thermal runaway is reduced, ensuring that the separator 100, which is located between the first cell 200 and the second cell 300, can support the cell 200 in extreme cases, and that the insulation between the support element 20 and the insulating element 10 is ensured.

[0045] According to the cell arrangement 1000 of the embodiment of the present disclosure, the separator 100 is arranged between the first cell 200 and the second cell 300, and the separator 100 exhibits good high-temperature resistance and insulation, thereby improving the support of the separator 100 for the first cell 200 and the second cell 300. In this way, the shape and operational reliability of the cell arrangement 1000 are ensured during thermal runaway, thereby reducing the cost of using the cell arrangement 1000.

[0046] The cell arrangement 1000 according to the embodiment of the present disclosure can be a battery pack, a battery module or the like.

[0047] In some embodiments, in the cell arrangement 1000, a positive terminal 201 of the first cell 200 and a negative terminal 301 of the second cell 300 are arranged adjacent to each other. The adjacent arrangement can be understood, for example, as the positive terminal 201 of the first cell 200 and the negative terminal 301 of the second cell 300 being located on the same side of the cell arrangement 1000.

[0048] In some embodiments, such as in Fig. As shown in Figure 1, the cell arrangement 1000 further includes at least one third cell 400, and this at least one third cell 400 is suitable for connecting in series with the first cell 200 and the second cell 300, meaning that the first cell 200, the second cell 300, and the third cell 400 are connected in series, and the third cell 400 is connected in series between the first cell 200 and the second cell 300. Additionally, a connector is provided so that the first cell 200, the second cell 300, and the third cell 400 can be connected in series.

[0049] Furthermore, the first cell 200 and the second cell 300 are arranged along the thickness direction C of the first cell 200 and the second cell 300, and the positive terminal 201 of the first cell 200 and the negative terminal 301 of the second cell 300 are arranged on one side of the longitudinal direction A of the first cell 200 and the second cell 300.

[0050] In some embodiments, the cell arrangement 1000 comprises a first cell group and a second cell group, each comprising a plurality of cells, and the first and second cell groups being connected in series. The first cell group includes the first cell 200, and the second cell group includes the second cell 300. The first cell 200 is suitable for connecting to the entire positive derivative element of the first cell group, and the second cell 300 is suitable for connecting to the entire negative derivative element of the second cell group.That the first cell group and the second cell group are connected in a row can mean that the first cell group and the second cell group are directly connected in a row by a connector, or can mean that the third cell 400 or a third cell group is connected in a row between the first cell group and the second cell group.

[0051] In some embodiments, the cell assembly 1000 is a battery pack. According to the battery pack of the embodiment of the present disclosure, the separator 100 is arranged within the cell assembly 1000, thus improving the safety of the cell assembly 1000 and the battery pack that uses the cell assembly 1000. In this way, battery pack failure and the risk caused by a high-temperature environment generated during thermal runaway are avoided, thereby improving the operational safety of the battery pack.

[0052] An electrical device 2000 according to the embodiment of the third aspect of the present disclosure, as in Fig. Figure 6 shows the cell arrangement 1000 of the above embodiment.

[0053] According to the electrical device 2000 of the embodiment of the third aspect of the present disclosure, the electrical device 2000 can be a vehicle. If the electrical device is the vehicle, safety can be ensured when the aforementioned battery arrangement is used in the vehicle, a shock to the battery arrangement can be effectively reduced if the battery arrangement experiences thermal runaway, and the operating and maintenance costs of the vehicle can be reduced.

[0054] In the description of the present disclosure, it is understood that an orientation or positional relationship indicated by terms such as "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "upper", "lower", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumference", or the like, is an orientation or positional relationship shown in the accompanying drawings and is intended only to facilitate the description and the description of the present to simplify disclosure, but is not intended to indicate or imply that a specified device or element must have a specific orientation,It must be constructed in a specific orientation and must operate in a specific orientation. Therefore, such terms cannot be interpreted as limiting the present disclosure.

[0055] In the description of this disclosure, a “first feature” or a “second feature” may include one or more such features. In the description of this disclosure, “a multitude of” means two or more. In the description of this disclosure, the expression that the first feature is “above” or “below” the second feature may mean that the first feature is in direct contact with the second feature, or it may mean that the first feature is not in direct contact with the second feature, but is in contact with the second feature through another feature located between the first and second features.In the description of the present disclosure, the expression that the first feature is “above”, “over” or “on” the second feature can mean that the first feature is directly above or obliquely above the second feature, or can simply mean that a horizontal height of the first feature is greater than that of the second feature.

[0056] In the description of this disclosure, a reference term such as "an embodiment," "some embodiments," "a schematic embodiment," "an example," "a specific example," or "some examples" means that a specific feature, structure, material, or property described with reference to the embodiment or example is included in at least one embodiment or example of this disclosure. In this description, schematic representations of the foregoing terms do not necessarily refer to the same embodiment or example.

[0057] Although the embodiments of the present disclosure are shown and described, those skilled in the art can understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present disclosure, and the scope of the present disclosure is defined by the claims and equivalents of the claims. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 202320423300,5

[0001]

Claims

[1] Separator (100) for a cell arrangement (1000) comprising an insulating element (10) wherein at least one first cavity (11) is formed in the insulating element (10); and at least one support element (20) wherein the support element (20) is arranged in the first cavity (11) to provide a support for the insulating element (10). [2] Separator (100) for a cell arrangement (1000) according to claim 1, wherein, when a temperature is greater than or equal to 300 °C, the structural strength of the support element (20) is greater than the structural strength of the insulating element (10). [3] Separator (100) for a cell arrangement (1000) according to claim 1 or 2, wherein the support element (20) is a metal element. [4] Separator (100) for a cell arrangement (1000) according to one of claims 1 to 3, wherein a second cavity (21) is formed on the support element (20). [5] Separator (100) for a cell arrangement (1000) according to one of claims 1 to 4, wherein a cross-sectional shape of the support element (20) differs from a cross-sectional shape of the first cavity (11). [6] Separator (100) for a cell arrangement (1000) according to one of claims 1 to 5, wherein several first cavities (11) are formed on the insulating element (10), the several first cavities (11) are arranged along a width direction of the insulating element (10), two adjacent first cavities (11) are separated by a separating section (40) and at least one separating section (40) is arranged obliquely relative to a thickness direction of the insulating element (10). [7] Separator (100) for a cell arrangement (1000) according to one of claims 1 to 6, wherein an outer peripheral surface of the support element (20) is coated with an insulating layer (30) and the insulating layer (30) is arranged between the support element (20) and the insulating element (10). [8] Separator (100) for a cell arrangement (1000) according to claim 7, wherein at least one through hole (31) is provided on the insulating layer (30), an adhesive is arranged at the through hole (31) and the support element (20) is connected to the insulating element (10) by the adhesive. [9] Separator (100) for a cell arrangement (1000) according to claim 7 or 8, wherein the insulating layer (30) is mica paper. [10] Separator (100) for a cell arrangement (1000) according to one of claims 7 to 9, wherein a heat-resistant temperature of the insulating layer (30) is T1, a heat-resistant temperature of the insulating element (10) is T2 and T1 and T2 satisfy the following: T1 > T2. [11] Separator (100) for a cell arrangement (1000) according to claim 10, wherein T1 and T2 further satisfy the following: 500 °C ≤ T1 ≤ 1000 °C and 250 °C ≤ T2 ≤ 280 °C. [12] Separator (100) for a cell arrangement (1000) according to any one of claims 1 to 11, wherein the insulating element (10) is a glass fiber composite material element or a carbon fiber composite material element. [13] Separator (100) for a cell arrangement (1000) according to any one of claims 1 to 12, wherein the insulating element (10) is an extruded mold element. [14] Cell arrangement (1000), comprising a first cell (200) and a second cell (300), wherein there is a voltage difference between the first cell (200) and the second cell (300) and the voltage difference is greater than a predetermined value; and a separator (100), wherein the separator (100) is the separator (100) for a cell arrangement (1000) according to one of claims 1 to 13 and the separator (100) is arranged between the first cell (200) and the second cell (300). [15] Cell arrangement (1000) according to claim 14, wherein a positive terminal (201) of the first cell (200) and a negative terminal (301) of the second cell (300) are arranged adjacent to each other. [16] Cell arrangement (1000) according to claim 14 or 15, wherein the cell arrangement (1000) further comprises at least one third cell (400) and the at least one third cell (400) is suitable for connecting in series with the first cell (200) and the second cell (300). [17] Cell arrangement (1000) according to one of claims 14 to 16, wherein the first cell (200) and the second cell (300) are arranged along a thickness direction of the first cell (200) and the second cell (300) and the positive terminal (201) of the first cell (200) and the negative terminal (301) of the second cell (300) are arranged on one side of a longitudinal direction of the first cell (200) and the second cell (300). [18] Cell arrangement (1000) according to any one of claims 14 to 17, wherein the cell arrangement (1000) comprises a first cell group and a second cell group, the first cell group and the second cell group each comprising a plurality of cells, and the first cell group and the second cell group being connected in series; and the first cell group comprising the first cell (200), the second cell group comprising the second cell (300), the first cell (200) being suitable for connecting to an entire positive derivative element of the first cell group, and the second cell (300) being suitable for connecting to an entire negative derivative element of the second cell group. [19] Electrical device (2000) comprising the cell arrangement (1000) according to any one of claims 14 to 18.

Images