Battery module and battery pack

Abstract

The utility model relates to the field of new energy automobiles, in particular to a battery module and a battery pack. The battery module comprises a heating assembly and a plurality of battery cells, the heating assembly comprises a first epoxy plate, a heating unit and a second epoxy plate which are connected in sequence, and the first epoxy plate is attached to the battery cell; wherein the thickness of the first epoxy plate is greater than that of the second epoxy plate. A heating unit in the battery module is located between a first epoxy plate and a second epoxy plate, the heating unit is protected through the first epoxy plate and the second epoxy plate, the first epoxy plate is further used for being attached to a battery cell, and the thickness of the first epoxy plate is larger than that of the second epoxy plate, so that the protection effect on the battery cell and the heating unit is improved, and the service life of the battery module is prolonged. And safety accidents caused by the short circuit phenomenon due to mutual electrification of the battery cell and the heating unit caused by abrasion of the first epoxy plate in the use process are avoided.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicles, and in particular to a battery module and a battery pack. Background Art

[0002] Nowadays, new energy vehicles are rapidly entering ordinary people's homes, and people's pursuit of the range of new energy vehicles is constantly increasing. In the northeast and northwest regions, due to the low temperature in winter, the charging time and range of new energy vehicles cannot meet people's needs; among them, the main reason affecting the battery pack's range is that the temperature of the battery cell in the battery pack is too low.

[0003] However, the heating method in the prior art easily causes the battery core and the heating unit to conduct electricity, resulting in a short circuit, which in turn causes a safety accident. Utility Model Content

[0004] The purpose of the utility model is to provide a battery module and a battery pack, which can protect the battery cells to prevent the battery cells and the heating unit from being worn, and play an insulating role to prevent the battery cells and the heating unit from being electrically connected, thereby preventing a short circuit from occurring and causing a safety accident.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides a battery module, comprising:

[0007] a plurality of battery cells; and

[0008] A heating assembly, the heating assembly comprising a first epoxy board, a heating unit and a second epoxy board connected in sequence, the first epoxy board being bonded to the battery cell;

[0009] Wherein, the thickness of the first epoxy board is greater than the thickness of the second epoxy board.

[0010] In an optional embodiment, the heating unit includes a plurality of first heating wires and two second heating wires, and the plurality of first heating wires are located between the two second heating wires;

[0011] The plurality of battery cells are arranged in a plurality of rows, the two opposite rows of battery cells on the outside are in contact with two second heating wires respectively, and each row of battery cells on the inside is in contact with one first heating wire;

[0012] The contact area between the first heating wire and the single battery cell is the same as the contact area between the second heating wire and the single battery cell, and the resistivity of the first heating wire is smaller than the resistivity of the second heating wire.

[0013] In an optional embodiment, a plurality of first heating wires are arranged in parallel and at intervals, and the second heating wires are arranged in parallel and at intervals with the first heating wires;

[0014] The heating unit further comprises a plurality of wires, both ends of each first heating wire are respectively connected to a wire, and one end of each second heating wire is connected to a wire.

[0015] In an optional embodiment, the battery module further includes a plurality of thermal gel layers, the thermal gel layers are located between the battery core and the first epoxy board, and the thermal gel layers are adhered to the battery core and the first epoxy board;

[0016] Wherein, each thermal gel layer is directly opposite to a first heating wire or a second heating wire.

[0017] In an optional embodiment, the battery module further includes a placement plate, the placement plate is located between the battery cell and the thermal gel layer, and the placement plate is connected to the battery cell and the thermal gel;

[0018] The placement plate is provided with a plurality of ventilation holes, each ventilation hole corresponds to a battery core, and one or two thermal gel layers are arranged between every two rows of ventilation holes.

[0019] In an optional embodiment, the battery module further includes a first temperature sensor and a second temperature sensor, and the first temperature sensor and the second temperature sensor are both connected to the battery cell;

[0020] The first temperature sensor is used to detect the temperature of the side of the battery cell close to the first epoxy board, and the second temperature sensor is used to detect the temperature of the side of the battery cell away from the first epoxy board.

[0021] In an optional embodiment, each first temperature sensor corresponds to one of the battery cells in a row, and each first temperature sensor is connected to the corresponding battery cell.

[0022] In an optional embodiment, the battery module further includes a pressing plate, which is connected to the battery cell and is used to press the second epoxy plate.

[0023] In an optional embodiment, the thickness of the first epoxy board is 0.4 mm-0.7 mm, and the thickness of the second epoxy board is 0.2 mm-0.5 mm.

[0024] In a second aspect, the utility model provides a battery pack, comprising a shell and a battery module as described in any one of the aforementioned embodiments, wherein the shell is connected to the battery module.

[0025] The beneficial effects of the embodiments of the utility model include:

[0026] The battery module includes a heating component and a plurality of battery cells; the heating component includes a first epoxy board, a heating unit and a second epoxy board which are connected in sequence, and the first epoxy board is bonded to the battery cells; wherein the thickness of the first epoxy board is greater than the thickness of the second epoxy board.

[0027] The heating unit in the battery module is located between the first epoxy plate and the second epoxy plate, and the heating unit is protected by the first epoxy plate and the second epoxy plate, wherein the first epoxy plate is also used to fit with the battery cell, and the thickness of the first epoxy plate is greater than the thickness of the second epoxy plate to improve the protection effect of the battery cell and the heating unit, and avoid wear of the first epoxy plate during use, which may cause the battery cell and the heating unit to be energized to each other, resulting in a short circuit, and thus causing a safety accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the 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 certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of a battery module provided by an embodiment of the utility model;

[0030] Figure 2 An exploded schematic diagram of a battery module provided by an embodiment of the utility model;

[0031] Figure 3 A schematic diagram of the structure of a heating assembly provided in an embodiment of the utility model;

[0032] Figure 4 A schematic diagram of the structure of a heating unit provided in an embodiment of the utility model;

[0033] Figure 5 A schematic diagram of the structure of a placement plate provided in an embodiment of the utility model;

[0034] Figure 6 A schematic diagram of the structure of the battery cell and the placement board provided in the embodiment of the utility model;

[0035] Figure 7 for Figure 6 A partial enlarged view of the middle A;

[0036] Figure 8 A schematic diagram of the structure of the thermal gel layer and the placement plate provided in an embodiment of the utility model;

[0037] Fig. 9 for Figure 8 A partial enlarged view of point C in the middle;

[0038] Fig.10 for Figure 2 A partial enlarged view of point B in the middle.

[0039] Icons: 100-battery module; 110-battery cell; 120-heating assembly; 121-first epoxy board; 122-heating unit; 123-second epoxy board; 124-first heating wire; 125-second heating wire; 126-conducting wire; 130-thermal gel layer; 140-placing plate; 141-ventilation hole; 150-first temperature sensor; 160-second temperature sensor; 170-pressing plate. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Please refer to Figure 1-Figure 3 , Figure 1 A schematic diagram of the structure of a battery module 100 provided in an embodiment of the utility model; Figure 2 An exploded schematic diagram of a battery module 100 provided in an embodiment of the utility model;

[0047] Figure 3 A schematic diagram of the structure of the heating component 120 provided in an embodiment of the utility model. The utility model provides a battery pack, which includes a battery module 100 and a shell, wherein the battery module 100 is located in the shell and connected to the shell. The battery pack includes a first epoxy plate 121, a heating unit 122, a second epoxy plate 123 and a plurality of battery cells 110, wherein the first epoxy plate 121 and the battery cells 110 are bonded, and the first epoxy plate 121, the heating unit 122 and the second epoxy plate 123 are bonded in sequence, wherein the thickness of the first epoxy plate 121 is greater than the thickness of the second epoxy plate 123.

[0048] It should be noted that the first epoxy plate 121 is used to protect the battery cell 110 and the heating unit 122, and has an insulating effect to prevent the battery cell 110 and the heating unit 122 from being electrically connected. However, during the operation of the battery module 100, the first epoxy plate 121 will be worn, resulting in a reduction in the protection effect of the battery cell 110 and the heating unit 122, and the wear of the first epoxy plate 121 will also cause the battery cell 110 and the heating unit 122 to be electrically connected, thereby causing a short circuit phenomenon and causing a safety accident. Therefore, in this embodiment, the thickness of the first epoxy plate 121 bonded to the battery cell 110 is greater than the thickness of other epoxy plates, that is, the thickness of the first epoxy plate 121 is greater than the thickness of the second epoxy plate 123, so that the first epoxy plate 121 is not easy to wear, so as to improve the protection of the battery cell 110 and the heating unit 122, and avoid the wear of the first epoxy plate 121 during use, which causes the battery cell 110 and the heating unit 122 to be electrically connected to each other, resulting in a short circuit phenomenon, and then causing a safety accident.

[0049] For further information, please refer to Figure 1The battery module 100 is provided with a pressing plate 170, which is connected to the battery cell 110 and is used to press the second epoxy plate 123, thereby fixing the heating component 120, so that the first epoxy plate 121 and the battery cell 110 fit more closely, and at the same time, improve the protection effect and insulation effect of the heating unit 122.

[0050] According to the above content, the thickness of the first epoxy plate 121 is 0.4mm-0.7mm, and the thickness of the second epoxy plate 123 is 0.2mm-0.5mm. In this embodiment, the thickness of the first epoxy plate 121 is 0.6mm, and the thickness of the second epoxy plate 123 is 0.4mm, so as to avoid the battery cell 110 and the heating unit 122 being electrically connected due to the wear of the first epoxy plate 121 during the operation of the battery module 100, avoiding a short circuit phenomenon and causing a safety accident, and ensuring that the heat provided by the heating unit 122 can be transferred to the battery cell 110 to heat the battery cell 110.

[0051] For further information, please refer to Figure 1-Figure 4 , Figure 4 A schematic diagram of the structure of a heating unit 122 provided in an embodiment of the utility model. The heating unit 122 includes a plurality of first heating wires 124 and two second heating wires 125, wherein the plurality of first heating wires 124 are located between the two second heating wires 125; a plurality of battery cell arrays are distributed in a plurality of rows, wherein the two opposite rows of battery cells 110 located on the outside are in contact with the two second heating wires 125 respectively, and each row of battery cells 110 located on the inside is in contact with one first heating wire 124.

[0052] Specifically, a plurality of battery cells 110 are arranged in an array to form an outer side and an inner side, the first heating wire 124 contacts the inner battery cell 110, and the second heating wire 125 contacts the outer battery cell 110. However, the outer battery cell 110 will also contact the shell, so that the heat of the outer battery cell 110 will be transferred to the shell. It can be understood that the heat of the outer battery cell 110 dissipates faster, and the temperature of the outer battery cell 110 is lower than that of the inner battery cell 110. In order to make the temperature of the battery cells 110 in the battery module 100 tend to be consistent and ensure the temperature balance of the battery module 100, the temperature of the outer battery cell 110 needs to be increased.

[0053] Therefore, in this embodiment, the contact area between the first heating wire 124 and a single internal battery cell 110 is the same as the contact area between the second heating wire 125 and a single external battery cell 110, and the resistivity of the first heating wire 124 is less than the resistivity of the second heating wire 125, so that the heat provided by the first heating wire 124 to the single battery cell 110 is less than the heat provided by the second heating wire 125 to the single battery cell 110, thereby making the temperatures of the battery cells 110 in the battery module 100 tend to be consistent and the temperature of the battery module 100 is more balanced.

[0054] Based on the above settings, please refer to Figure 3 , multiple first heating wires 124 are arranged in parallel and at intervals, and the second heating wires 125 are arranged in parallel and at intervals with the first heating wires 124; the heating unit 122 also includes multiple wires 126, each of the two ends of the first heating wire 124 is connected to a wire 126 respectively, and one end of each second heating wire 125 is connected to a wire 126.

[0055] Specifically, in this embodiment, in order to ensure that the contact area between the first heating wire 124 and a single internal battery cell 110 is the same as the contact area between the second heating wire 125 and a single outer battery cell 110, multiple first heating wires 124 are arranged in parallel and spaced apart along the arrangement direction of multiple battery cells 110, and the second heating wires 125 and the first heating wires 124 are also arranged in parallel and spaced apart, and the spacing distance between each other is the same. It should be noted that in this embodiment, the first heating wire 124 and the second heating wire 125 are both designed with a wide body to avoid dry burning; wherein, the resistivity of the wire 126 is relatively small, and during the conduction process, its own temperature is very low, and the heat generated is transferred to the first epoxy board 121 and then dispersed; it can be understood that the wire 126 does not heat the battery cell 110.

[0056] Furthermore, the battery module 100 further includes a plurality of thermal gel layers 130, which are located between the battery cell 110 and the first epoxy plate 121, and are adhered to the battery cell 110 and the first epoxy plate 121; wherein each thermal gel layer 130 is directly opposite to a first heating wire 124 or a second heating wire 125. Specifically, since the surface of the battery cell 110 is uneven and the battery cell 110 is also welded with a bus bar, the contact between the first epoxy plate 121 and the battery cell 110 is not tight, wherein the thermal gel layer 130 can be deformed to make it more closely attached to the surface of the battery cell 110, and can make the side of the battery cell 110 in contact with the first epoxy plate 121 smoother, so as to facilitate the transfer of heat provided by the heating unit 122 to the battery cell 110, thereby improving the heating efficiency.

[0057] Based on the above settings, please refer to Figure 1-Figure 9 , Figure 5 A schematic diagram of the structure of the placement plate 140 provided in an embodiment of the utility model; Figure 6 A schematic diagram of the structure of the battery cell 110 and the placement plate 140 provided in an embodiment of the utility model; Figure 7 for Figure 6 A partial enlarged view of the middle A; Figure 8 A schematic diagram of the structure of the thermal gel layer 130 and the placement plate 140 provided in an embodiment of the utility model; Fig. 9 for Figure 8A partial enlarged view of point C in the middle.

[0058] The battery module 100 also includes a placement plate 140, which is located between the battery cell 110 and the thermal gel layer 130, and is connected to the battery cell 110 and the thermal gel; the placement plate 140 is provided with a plurality of air holes 141, each air hole 141 corresponds to a battery cell 110, and one or two thermal gel layers 130 are arranged between every two rows of air holes 141.

[0059] Specifically, in this embodiment, the battery cell 110 is a cylindrical battery cell, and the placement plate 140 is provided with a plurality of circular grooves, each of which corresponds to a battery cell 110, and each battery cell 110 is placed in the corresponding circular groove. Each circular groove is provided with a through hole, so that the busbar and the protruding portion of the surface of the battery cell 110 pass through the placement plate 140 and are exposed relative to the placement plate 140, wherein the exposed portion is adhered to the thermal gel layer 130, so that the connection surface between the battery cell 110 and the first epoxy plate 121 is smoother.

[0060] In this embodiment, ventilation holes 141 are provided so that when the heating of the battery module 100 stops, the heat can be dissipated through the ventilation holes 141 to cool the battery module 100. It should be noted that since the plurality of battery cells 110 are arranged in multiple rows, the plurality of through holes are arranged in multiple rows, and the plurality of ventilation holes 141 are arranged in multiple rows. In this embodiment, one or two rows of through holes are provided between every two rows of ventilation holes 141, that is, one or two thermal gel layers 130 are provided.

[0061] For further information, please refer to Figure 1-Figure 10 , Fig.10 for Figure 2 The battery module 100 further includes a first temperature sensor 150 and a second temperature sensor 160, both of which are connected to the battery cell 110; wherein the first temperature sensor 150 is used to detect the temperature of the side of the battery cell 110 close to the first epoxy board 121, and the second temperature sensor 160 is used to detect the temperature of the side of the battery cell 110 away from the first epoxy board 121.

[0062] Specifically, the first epoxy board 121 is connected to the top of the battery cell 110, that is, the first temperature sensor 150 is connected to the top surface of the battery cell 110, and the second temperature sensor 160 is connected to the bottom surface of the battery cell 110. Since the first temperature sensor 150 is close to the first epoxy board 121 and the heating unit 122, the temperature detected by the first temperature sensor 150 is greater than the temperature detected by the second temperature sensor 160.

[0063] It should be noted that, in this embodiment, the second temperature sensor 160 is connected to the bottom of the battery cell 110 located at the corner, the battery cell 110 has the largest contact area with the shell, and the bottom temperature is the lowest temperature. At this time, if the temperature detected by the second temperature sensor 160 is less than 35 degrees, the battery cell 110 is temperature compensated, that is, the battery cell 110 is heated, and when the temperature detected by the second temperature sensor 160 reaches 35 degrees, the heating is stopped.

[0064] It should also be noted that even if the temperature detected by the second temperature sensor 160 is greater than or equal to 35 degrees, the temperature difference between the top and bottom of the battery cell needs to be determined to determine whether temperature compensation is required. Specifically, if the difference between the temperature detected by the first temperature sensor 150 and the temperature detected by the second temperature sensor 160 is greater than 5 degrees, the battery cell 110 is temperature compensated and the battery cell 110 is heated. If the difference is less than or equal to 3 degrees, the temperature compensation of the battery cell 110 is stopped, that is, when the temperature difference is greater than 5 degrees, heating is started, and when the temperature difference reaches 3 degrees, heating is stopped.

[0065] In this embodiment, since the heating unit 122 includes a first heating wire 124 and a second heating wire 125, and the first heating wire 124 and the second heating wire 125 are in contact with different battery cells 110, respectively, in order to make the judgment more accurate, a plurality of first temperature sensors 150 are provided, each of which corresponds to one of the battery cells 110 in a row, and each of which is connected to the corresponding battery cell 110. Specifically, each first temperature sensor 150 is used to detect the temperature at the top of a row of battery cells 110. Since each row of battery cells 110 is in contact with the same first heating wire 124 or second heating wire 125, one of the battery cells 110 in each row of battery cells 110 can be connected to the corresponding first temperature sensor 150, and the temperature of the battery cell 110 is used to represent the overall temperature of the battery cells 110 in the row in which it is located. After the temperatures of multiple rows of battery cells 110 are detected, the average temperature is calculated, and the difference between the average value and the temperature detected by the second temperature sensor 160 is obtained, and it is determined whether to heat the battery cell 110 according to the difference.

[0066] In summary, the heating unit 122 in the battery module 100 is located between the first epoxy plate 121 and the second epoxy plate 123, and the heating unit 122 is protected by the first epoxy plate 121 and the second epoxy plate 123, wherein the first epoxy plate 121 is also used to fit with the battery cell 110, and the thickness of the first epoxy plate 121 is greater than the thickness of the second epoxy plate to improve the protection effect of the battery cell 110 and the heating unit 122, to avoid wear of the first epoxy plate 121 during use, which may cause the battery cell 110 and the heating unit 122 to be energized to each other, resulting in a short circuit, and thus causing a safety accident.

[0067] The heating unit 122 includes a first heating wire 124, a second heating wire 125 and a wire 126. The first heating wire 124 is attached to the internal battery cell 110, and the second heating wire 125 is attached to the external battery cell 110. The first heating wire 124 and the second heating wire 125 are parallel and connected by the wire 126. The heat provided by the first heating wire 124 to a single internal battery cell 110 is less than the heat provided by the second heating wire 125 to a single external battery cell 110, so that the temperature between different battery cells 110 is consistent, and the temperature of the battery module 100 is more balanced. In addition, the battery module 100 is provided with a first temperature sensor 150 connected to the top of the battery cell 110 and a second temperature sensor 160 connected to the bottom of the battery cell 110. The temperature detected by the second temperature sensor 160 is measured, or the difference between the temperatures detected by the two temperature sensors is calculated to determine whether to heat the battery cell 110.

[0068] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery module, characterized in that: include: Multiple cells; as well as A heating assembly, the heating assembly comprising a first epoxy board, a heating unit and a second epoxy board connected in sequence, the first epoxy board being bonded to the battery cell; Wherein, the thickness of the first epoxy board is greater than the thickness of the second epoxy board.

2. The battery module according to claim 1, characterized in that: The heating unit comprises a plurality of first heating wires and two second heating wires, wherein the plurality of first heating wires are located between the two second heating wires; The plurality of battery cell arrays are distributed into a plurality of rows, the two opposite rows of battery cells located on the outside are in contact with two second heating wires respectively, and each row of battery cells located on the inside is in contact with one first heating wire; The contact area between the first heating wire and the single battery core is the same as the contact area between the second heating wire and the single battery core, and the resistivity of the first heating wire is smaller than the resistivity of the second heating wire.

3. The battery module according to claim 2, characterized in that: A plurality of the first heating wires are arranged in parallel and at intervals, and the second heating wires are arranged in parallel and at intervals with the first heating wires; The heating unit further includes a plurality of wires, both ends of each of the first heating wires are respectively connected to one of the wires, and one end of each of the second heating wires is connected to one of the wires.

4. The battery module according to claim 3, characterized in that: The battery module further includes a plurality of thermal gel layers, wherein the thermal gel layers are located between the battery core and the first epoxy board, and the thermal gel layers are adhered to the battery core and the first epoxy board; Wherein, each of the thermal gel layers is directly opposite to one of the first heating wires or one of the second heating wires.

5. The battery module according to claim 4, characterized in that: The battery module further includes a placement plate, the placement plate is located between the battery core and the thermal gel layer, and the placement plate is connected to the battery core and the thermal gel; The placement plate is provided with a plurality of ventilation holes, each ventilation hole corresponds to one battery core, and one or two thermal gel layers are provided between every two rows of ventilation holes.

6. The battery module according to any one of claims 2 to 5, characterized in that: The battery module further includes a first temperature sensor and a second temperature sensor, wherein the first temperature sensor and the second temperature sensor are both connected to the battery cell; The first temperature sensor is used to detect the temperature of a side of the battery cell close to the first epoxy board, and the second temperature sensor is used to detect the temperature of a side of the battery cell away from the first epoxy board.

7. The battery module according to claim 6, characterized in that: Each of the first temperature sensors corresponds to one of the battery cells in a row, and each of the first temperature sensors is connected to the corresponding battery cell.

8. The battery module according to any one of claims 1 to 5, characterized in that: The battery module also includes a pressing plate, which is connected to the battery cell and is used to press the second epoxy plate.

9. The battery module according to any one of claims 1 to 5, characterized in that: The thickness of the first epoxy board is 0.4 mm-0.7 mm, and the thickness of the second epoxy board is 0.2 mm-0.5 mm.

10. A battery pack, characterized in that: The battery pack comprises a shell and a battery module as described in any one of claims 1 to 9, wherein the shell is connected to the battery module.

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