Battery module and battery pack including the same

Abstract

A battery module according to one embodiment of the disclosure includes a battery cell stack in which a plurality of battery cells are stacked, a module frame for accommodating the battery cell stack, and a first thermally conductive resin layer between the battery cell stack and a bottom of the module frame, wherein the bottom includes a first area, a second area, and a third area between the first area and the second area apart from each other, the first thermally conductive resin layer is formed on the first area and the second area, and at least one through hole is formed in the third area.

Description

Technical Field

[0001] Cross-references to related applications

[0002] This application claims the benefit of Korean Patent Application No. 10-2020-0006113, filed on January 16, 2020, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety.

[0003] This disclosure relates to a battery module and a battery pack including the battery module, and more particularly, to a battery module having improved cooling performance and a battery pack including the battery module. Background Technology

[0004] In modern society, with the widespread use of portable devices such as mobile phones, laptops, portable camcorders, and digital cameras, technological development in fields related to these mobile devices has become increasingly active. Furthermore, rechargeable / dischargeable secondary batteries are being used as power sources for electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles (P-HEVs) in an attempt to address issues such as air pollution caused by existing gasoline vehicles using fossil fuels. Therefore, the demand for the development of secondary batteries is growing.

[0005] Currently, commercially available rechargeable batteries include nickel-cadmium (NiCd), nickel-metal hydride (NiMH), nickel-zinc (NiZn), and lithium-ion batteries. Among these, lithium-ion batteries have become the focus because they offer advantages such as virtually no memory effect compared to nickel-based batteries, allowing for free charging and discharging, and exhibiting a very low self-discharge rate and high energy density.

[0006] This type of lithium secondary battery primarily uses lithium oxide and carbonaceous materials as the positive and negative electrode active materials, respectively. The lithium secondary battery includes: an electrode assembly in which positive and negative electrode plates, respectively coated with positive and negative electrode active materials, are disposed with a separator between them; and a battery casing that seals and contains the electrode assembly and the electrolyte solution together.

[0007] Lithium-ion batteries can generally be classified into can-type batteries and pouch-type batteries based on the shape of their external materials. In can-type batteries, the electrode assembly is housed in a metal can, while in pouch-type batteries, the electrode assembly is housed in a pouch of aluminum laminate.

[0008] In the case of secondary batteries used in small devices, two or three individual battery cells are typically used. However, in the case of secondary batteries used in medium or large devices (such as automobiles), battery modules are used where a large number of battery cells are electrically connected. In such battery modules, a large number of battery cells are connected in series or parallel to form a battery cell stack, thereby increasing capacity and output. Furthermore, one or more battery modules can be integrated with various control and protection systems, such as battery management systems (BMS) and cooling systems, to form a battery pack.

[0009] Meanwhile, to protect the battery cell stack from external impacts, heat or vibration, the battery module may include a module frame and end plates for housing the battery cell stack in the internal space.

[0010] At this point, thermally conductive resin can be injected between the battery cell stack and the module frame to form a thermally conductive resin layer, which can transfer the heat generated in the battery cell stack to the bottom of the battery module.

[0011] However, excessive injection of thermally conductive resin increases the manufacturing cost of the battery module, which negatively impacts profitability. Summary of the Invention

[0012] [Technical Issues]

[0013] The objective of embodiments of this disclosure is to provide a battery module and a battery pack including the battery module, which can maintain temperature uniformity between battery cells while achieving the optimal coating amount of thermally conductive resin to form the thermally conductive resin layer.

[0014] However, the technical problems to be solved by the embodiments of this disclosure are not limited to the above-described problems, and various extensions can be made within the scope of the technical concepts included in this disclosure.

[0015] [Technical Solution]

[0016] According to one embodiment of this disclosure, a battery module is provided, the battery module comprising: a battery cell stack, wherein a plurality of battery cells are stacked in the battery cell stack; a module frame for accommodating the battery cell stack; and a first thermally conductive resin layer located between the battery cell stack and the bottom of the module frame, wherein the bottom includes a first region, a second region, and a third region, the third region being located between the first region and the second region which are separated from each other, the first thermally conductive resin layer being formed on the first region and the second region, and at least one through-hole being formed in the third region.

[0017] The battery module may also include a second thermally conductive resin layer located below the bottom.

[0018] The battery cell stack can contact the second thermally conductive resin layer through through-holes.

[0019] The battery may also include a heat sink located below the second thermally conductive resin layer.

[0020] The first and second regions can be located at opposite ends of each other in the bottom, and the third region can be located between the first and second regions.

[0021] The modular frame has an open front surface and an open rear surface, and the first and second regions can be positioned to be separated from each other at the bottom ends adjacent to the front and rear surfaces, respectively.

[0022] The battery cell includes electrode leads, and the electrode leads may protrude toward the open front surface and open rear surface of the module frame.

[0023] The module frame may include: a U-shaped frame having an open upper surface; and an upper plate configured to cover the open upper surface of the U-shaped frame.

[0024] The modular frame can be a single frame in which the bottom, two sides and the top are integrated.

[0025] The bottom may include two or more injection holes, which are located in a first region and a second region, respectively.

[0026] At least one of the first thermally conductive resin layer and the second thermally conductive resin layer includes a thermally conductive resin, and the thermally conductive resin may include at least one of silicone material, polyurethane material and acrylic material.

[0027] [Beneficial Effects]

[0028] According to embodiments of this disclosure, by forming at least one through-hole in the bottom of the module frame, an optimal amount of thermally conductive resin can be coated onto the bottom, while simultaneously maintaining uniform temperature among the battery cells included in the battery module. Attached Figure Description

[0029] Figure 1 This is a perspective view of a battery module according to an embodiment of the present disclosure.

[0030] Figure 2 yes Figure 1 An exploded 3D view of the battery module.

[0031] Figure 3 It is viewed from above. Figure 2 A plan view of the U-shaped frame included in the battery module.

[0032] Figure 4 yes Figure 2 A 3D view of the individual battery cells included in the battery module.

[0033] Figure 5 It is along Figure 1 The cross-sectional view taken by the cutting line A-A'.

[0034] Figure 6 It is along Figure 1 The cross-sectional view taken by the cutting line B-B'.

[0035] Figure 7 This is an exploded perspective view of a battery module according to another embodiment of the present disclosure.

[0036] Figure 8 It's a diagram. Figure 7 A three-dimensional view of the single frame included in the battery module.

[0037] Figure 9 It shows Figure 7 A 3D view of the battery module in an inverted state. Detailed Implementation

[0038] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, enabling those skilled in the art to readily implement them. The present disclosure can be modified in various ways and is not limited to the embodiments set forth herein.

[0039] Parts irrelevant to the description will be omitted in order to clearly describe this disclosure, and throughout the specification, the same reference numerals denote the same elements.

[0040] Furthermore, for ease of description, the dimensions and thicknesses of each element are arbitrarily illustrated in the accompanying drawings, and this disclosure is not necessarily limited to what is shown in the drawings. For clarity, the thicknesses of layers, regions, etc., are exaggerated in the drawings. For ease of description, the thicknesses of some layers and regions are exaggerated in the accompanying drawings.

[0041] Furthermore, it should be understood that when an element such as a layer, membrane, region, or plate is referred to as being "on" or "above" another element, the element may be directly on the other element, or there may be intervening elements present. Conversely, when an element is referred to as being "directly" on another element, it means that there are no other intervening elements present. Additionally, the terms "on" or "above" imply that it is positioned on or below a reference portion, and do not necessarily mean that it is positioned at the upper end of the reference portion in the opposite direction to gravity.

[0042] Furthermore, throughout the specification, when a section is referred to as "including" a component, it means that the section may also include other components, without excluding other components, unless otherwise stated.

[0043] Furthermore, throughout the instruction manual, when referred to as a "plane," it means the view of the target portion from above, and when referred to as a "section," it means the view of the target portion from the side of a vertically cut section.

[0044] Figure 1 This is a perspective view of a battery module according to an embodiment of the present disclosure. Figure 2 yes Figure 1 An exploded 3D view of the battery module. Figure 3 It is viewed from above. Figure 2 A plan view of the U-shaped frame included in the battery module.

[0045] refer to Figures 1 to 3 According to an embodiment of the present disclosure, a battery module 100a includes: a battery cell stack 200 in which a plurality of battery cells 110 are stacked; a module frame 300a for housing the battery cell stack 200; and a first thermally conductive resin layer 810 located between the battery cell stack 200 and the bottom of the module frame 300a. In this case, the bottom 310a includes a first region 311a, a second region 312a, and a third region 313a, and the third region 313a is located between the first region 311a and the second region 312a, which are separated from each other. Furthermore, the first thermally conductive resin layer 810 is formed on the first region 311a and the second region 312a, and at least one through-hole 900a is formed in the third region 313a.

[0046] The module frame 300a may have an open shape with a front surface (in the x-axis direction) and a rear surface (in the opposite direction to the x-axis), and the end plate 600 may cover the open front surface and the open rear surface of the module frame 300a, respectively. The module frame 300a and the end plate 600 preferably have a predetermined strength to protect other electrical components, including the battery cell stack 200, from external impacts, and for this purpose, the module frame 300a and the end plate 600 may comprise a metallic material, particularly aluminum.

[0047] Meanwhile, the module frame 300a according to this embodiment includes: a U-shaped frame 400a having an open upper surface (in the z-axis direction); and an upper plate 500a configured to cover the open upper surface of the U-shaped frame 400a. The U-shaped frame 400a and the upper plate 500a can be joined to each other by welding, but the joining method is not limited to this and can be implemented through various embodiments.

[0048] The U-shaped frame 400a may include a bottom 310a and two sides 320a, which extend upward (z-axis direction) from opposite sides of the bottom 310a, and the distance between the two sides 320a is preferably equal to the width of the upper plate 500a.

[0049] In this embodiment, the bottom 310a of the module frame 300a corresponds to the bottom 310a of the U-shaped frame 400a, and the bottom 310a includes a third region 313a having at least one through hole 900a and a first region 311a and a second region 312a having a first thermally conductive resin layer 810.

[0050] The first thermally conductive resin layer 810 located in the first region 311a and the second region 312a is formed by coating a thermally conductive resin onto the bottom 310a, and the thermally conductive resin may include a thermally conductive adhesive material. Specifically, the thermally conductive resin may include at least one of silicone material, polyurethane material and acrylic material.

[0051] The thermally conductive resin is liquid during coating but cures after coating, thereby serving to fix one or more battery cells 110 constituting the battery cell stack 200. Furthermore, the thermally conductive resin has excellent thermal conductivity, allowing heat generated in the battery cell 110 to be quickly transferred to the lower surface of the battery module 100a, preventing the battery module 100a from overheating.

[0052] at the same time, Figure 4 The diagram shows the state of the battery cells 110 included in the battery cell stack 200. Figure 4 yes Figure 2 A perspective view of the battery cell 110 included in the battery module.

[0053] refer to Figure 4 The battery cell 110 is preferably a pouch-type battery cell. For example, the battery cell 110 according to this embodiment has a structure in which two electrode leads 150 face each other and protrude from one end 114a and the other end 114b of the battery body 113, respectively. More specifically, the electrode leads 150 are connected to an electrode assembly (not shown) and protrude from the electrode assembly (not shown) to the outside of the battery cell 110.

[0054] Meanwhile, with the electrode assembly (not shown) housed in the battery casing 114, the battery cell 110 can be manufactured by bonding the two ends 114a and 114b of the battery casing 114 and a side portion 114c connecting these two ends. In other words, the battery cell 110 according to this embodiment has a total of three sealing portions 114sa, 114sb, and 114sc, which have a structure that is sealed by a method such as heat fusion, and the remaining side portion can be formed by a connecting portion 115. Furthermore, the connecting portion 115 can extend quite long along one edge of the battery cell 110, and a protrusion 110p of the battery cell 110 (referred to as a battery ear) can be formed at the edge of the connecting portion 115.

[0055] Return to reference Figure 2 , Figure 4 The individual battery cells 110 can be stacked along the y-axis to form a battery cell stack 200. Therefore, the electrode leads 150 of the multiple battery cells 110 can protrude toward the front surface (x-axis direction) and the rear surface (opposite to the x-axis direction), respectively.

[0056] Meanwhile, the first region 311a and the second region 312a are located at opposite ends of the bottom 310a, and the third region 313a may be located between the first region 311a and the second region 312a. That is, the first thermally conductive resin layer 810 may be located at opposite ends of the bottom 310a.

[0057] More specifically, in the open module frame 300a with a front surface (x-axis direction) and a rear surface (opposite to the x-axis direction), a first region 311a and a second region 312a, on which a first thermally conductive resin layer 810 is formed, can be positioned apart from each other at the two ends of the bottom 310a adjacent to each of the front and rear surfaces.

[0058] According to this embodiment, such as Figure 2 As shown, the battery cell stack 200 can be positioned on the bottom 310a along a vertically descending direction (opposite to the z-axis) through the open upper surface of the U-shaped frame 400a. Before positioning the battery cell stack 200, thermally conductive resin can be applied to the bottom 310a to form a first thermally conductive resin layer 810, and the thermally conductive resin is compressed by the vertically descending battery cell stack 200 and moves in the horizontal direction. At this time, if the thermally conductive resin is applied to all areas of the bottom 310a, and due to the vertical descent of the battery cell stack 200, thermally conductive resin may overflow to the outside of the module frame 300a. However, when only a small amount of thermally conductive resin is applied, there is a concern about the deterioration of the heat transfer performance of the thermally conductive resin layer.

[0059] Therefore, the battery module 100a according to this embodiment is configured such that when a battery module 100a is manufactured by forming a first thermally conductive resin layer 810 only in the first region 311a and the second region 312a and then positioning the battery cell stack 200 thereon, the first thermally conductive resin layer 810 can prevent the deterioration of heat transfer performance, while preventing the use of thermally conductive resin beyond what is necessary.

[0060] As described above, the electrode leads 150 of the battery cell 110 can protrude toward the front surface (x-axis direction) and the rear surface (opposite to the x-axis direction) of the module frame 300a, respectively. When the battery module 100a is operating, a portion of the electrode leads 150 in the battery cell 110 may generate more heat than other portions. Therefore, the battery cell stack 200 can concentrate the heat in the portions adjacent to each of the front surface (x-axis direction) and the rear surface (opposite to the x-axis direction).

[0061] At this point, the first region 311a and the second region 312a, where the first thermally conductive resin layer 810 is formed, are positioned apart from each other at the two ends of the bottom 310a adjacent to each of the front and rear surfaces, so that heat concentrated in the portions adjacent to each of the front and rear surfaces can be dissipated more quickly. In other words, the temperature can be kept uniform at every point of the battery cell 110, thereby preventing the performance of the battery cell 110 from deteriorating due to temperature deviations.

[0062] However, because the thermally conductive resin layer is not formed in the third region 313a, temperature deviations in the battery cell 110 may occur. Therefore, the battery module 100a according to this embodiment attempts to solve these problems by providing at least one through-hole 900a in the third region 313a. In the following, it will be combined with... Figure 5 and Figure 6 Let me describe this situation in detail.

[0063] Figure 5 It is along Figure 1 The cross-sectional view taken by the cutting line A-A', and Figure 6 It is along Figure 1 The cross-sectional view taken by the cutting line B-B'. Specifically, the cutting line A-A' passes through the first region 311a, and the cutting line B-B' passes through the third region 313a.

[0064] refer to Figure 5 and Figure 6According to this embodiment, the battery module 100a may include a second thermally conductive resin layer 820, which is located below the bottom 310a of the module frame 300a. Similar to the first thermally conductive resin layer 810, the second thermally conductive resin layer 820 may include a thermally conductive resin containing a thermally conductive adhesive material.

[0065] Additionally, the battery module 100a may also include a heat sink 830 located below the second thermally conductive resin layer 820. The heat sink 830 may include refrigerant flow channels formed therein and may perform the function of dissipating heat generated in the battery cell stack 200 to the outside.

[0066] Therefore, as Figure 5 As shown, the heat generated in the portion corresponding to the first region 311a of the battery cell 110 can be moved to the outside sequentially along the first thermally conductive resin layer 810, the first region 311a of the bottom 310a, the second thermally conductive resin layer 820, and the heat sink 830. In this case, it goes without saying that the heat transfer path in the portion corresponding to the second region 312a is similar to the heat transfer path in the portion corresponding to the first region 311a described above.

[0067] On the other hand, in the third region 313a where no thermally conductive resin layer is formed between the battery cell stack 200 and the bottom 310a, there is a possibility that cooling performance may deteriorate due to the empty space without a thermally conductive resin layer. Therefore, in this embodiment, as... Figure 6 As shown, at least one through-hole 900a is formed in the third region 313a, and the battery cell stack 200 can contact the second thermally conductive resin layer 820 through the through-hole 900a. Therefore, the heat generated in the portion of the battery cell 110 corresponding to the third region 313a can be moved to the outside sequentially along the second thermally conductive resin layer 820 and the heat sink 830.

[0068] Furthermore, even when the through-hole 900a is formed, portions in the third region 313a where the battery cell 110 and the second thermally conductive resin layer 820 do not contact each other may still occur. However, because the third region 313a corresponds to the middle portion of the battery cell 110 that generates relatively less heat compared to the portion of the electrode lead 150, these configurations are better suited for uniformly maintaining the overall temperature of the battery cell 110.

[0069] Meanwhile, the through hole 900a according to the embodiments of this disclosure can be formed by one hole or two or more holes, but as... Figure 2 and Figure 3 As shown, preferably, a plurality of through holes are formed and positioned to be separated from each other along the stacking direction (y-axis direction) of the battery cells 110.

[0070] Furthermore, although only the shape of the circular through-hole 900a is illustrated, the through-hole 900a according to embodiments of the present disclosure may have a polygonal shape or a circular shape.

[0071] In the following text, reference will be made to Figures 7 to 9 A battery module 100b according to another embodiment of the present disclosure is described.

[0072] Figure 7 This is an exploded perspective view of a battery module according to another embodiment of the present disclosure. Figure 8 It's a diagram. Figure 7 A three-dimensional view of the single frame included in the battery module. Figure 9 It shows Figure 7 A 3D view of the battery module in an inverted state.

[0073] According to this embodiment, the battery module 100b includes a battery cell stack 200 on which a plurality of battery cells 110 are stacked, a module frame 300b, and a first thermally conductive resin layer 810. Furthermore, the battery module 100b may also include an end plate 600 and a second thermally conductive resin layer 820 located below the bottom 310b of the module frame 300b. In this case, the battery cell stack 200, the first thermally conductive resin layer 810, the second thermally conductive resin layer 820, and the end plate 600 overlap with the above descriptions, and therefore their detailed descriptions are omitted.

[0074] According to this embodiment, the module frame 300b can be a single frame in which the upper surface (z-axis direction), the lower surface (opposite to the z-axis), and two surfaces (y-axis direction and opposite to the y-axis) are integrally formed. In other words, the module frame 300b as a single frame can include a bottom 310b, two sides 320b, and a top 330b, and the bottom 310b, the two sides 320b, and the top 330b can be integrally formed. Figure 8 The diagram shows the state with the two sides 320b cut open for ease of explanation only.

[0075] The front surface (x-axis direction) and rear surface (opposite to the x-axis direction) of the module frame 300b are open, and the battery cell stack can be accommodated through the open front surface or the open rear surface.

[0076] The bottom 310b of the module frame 300b includes a first region 311b, a second region 312b, and a third region 313b, with the third region 313b located between the separate first region 311b and second region 312b. A first thermally conductive resin layer 810 is formed on the first region 311b and the second region 312b, and at least one through-hole 900b is formed in the third region 313b.

[0077] The first region 311b and the second region 312b are located at opposite ends of the bottom 310b, and the third region 313b may be located between the first region 311b and the second region 312b. That is, the first thermally conductive resin layer 810 may be located at opposite ends of the bottom 310b. More specifically, in the module frame 300b, which is open on the front surface (x-axis direction) and the rear surface (opposite to the x-axis direction), the first region 311b and the second region 312b, on which the first thermally conductive resin layer 810 is formed, may be positioned opposite each other at opposite ends of the bottom 310b, adjacent to the front and rear surfaces, respectively.

[0078] Meanwhile, at least one through hole 900b is formed in the third region 313b, and the battery cell stack 200 can contact the second thermally conductive resin layer 820 through the through hole 900b.

[0079] refer to Figure 9 According to this embodiment, the bottom 310b of the module frame 300b may include two or more injection holes 910b located in the first region 311b and the second region 312b respectively.

[0080] Because of the structure of the modular frame 300b, which is a single frame consisting of a bottom 310b, two sides 320b and a top 330b, the battery cell stack 200 must be accommodated by either an open front surface (x-axis direction) or an open rear surface (opposite to the x-axis direction), and it is desirable that the thermally conductive resin is not pre-coated before accommodating the battery cell stack 200.

[0081] Alternatively, after accommodating the battery cell stack 200, thermally conductive resin can be injected through two or more injection holes 910b to form a first thermally conductive resin layer 810 in the first region 311b and the second region 312b.

[0082] While the number of injection holes 910b is not particularly limited, it is preferred that multiple injection holes 910b are formed in the first region 311b and the second region 312b.

[0083] At the same time, refer to Figure 2 and Figure 8 In the first regions 311a and 311b and the second regions 312a and 312b, the grooves 340a and 340b can be formed without being coated with thermally conductive resin, allowing for installation. Figure 4 The protrusion 110p of the battery cell 110 shown.

[0084] refer to Figure 2According to an embodiment of the present disclosure, the battery module 100a may further include: a busbar 710, which connects the electrode leads 150 of each battery cell 110; and a busbar frame 700, on which the busbar 710 is mounted.

[0085] Specifically, the busbar frame 700 can be formed on the front surface (x-axis direction) and rear surface (opposite to the x-axis direction) of the battery cell stack 200, respectively, depending on the protruding direction of the electrode leads 150. The electrode leads 150 of the battery cell 110 can be bent after passing through the slits formed in the busbar frame 700 to connect to the busbar 710. Because the end plate 600 engages with the module frame 300a, it can protect various electrical components mounted on the busbar frame 700, including the busbar 710, from external impacts, etc.

[0086] One or more of the battery modules described above according to this embodiment can be installed together with various control and protection systems (such as battery management systems (BMS) and cooling systems) to form a battery pack.

[0087] The aforementioned battery modules or battery packs can be applied to various devices. Specifically, these devices can be applied to vehicle devices, such as electric bicycles, electric vehicles, and hybrid vehicles, but this disclosure is not limited thereto, and can be applied to various devices that can use secondary batteries.

[0088] While preferred embodiments of the present disclosure have been described in detail above, the scope of the present disclosure is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concepts of the present disclosure as defined in the appended claims are also within the scope of the present disclosure.

[0089] List of reference numerals

[0090] 100a, 100b: Battery modules

[0091] 110: Battery cell

[0092] 200: Battery cell stack

[0093] 300a, 300b: Module framework

[0094] 310a, 310b: Bottom

[0095] 311a, 311b: First area

[0096] 312a, 312b: Second area

[0097] 313a, 313b: Third Region

[0098] 600: End plate

[0099] 700: Busbar Frame

[0100] 710: Busbar

[0101] 810: First thermally conductive resin layer

[0102] 820: Second thermally conductive resin layer

[0103] 830: Radiator

[0104] 900a, 900b: Through holes

Claims

1. A battery module, comprising: A battery cell stack, in which multiple battery cells are stacked; A modular framework for accommodating the battery cell stack; as well as A first thermally conductive resin layer is located between the battery cell stack and the bottom of the module frame. The bottom includes a first region, a second region, and a third region. The third region is located between the first region and the second region, which are separate from each other. A first thermally conductive resin layer is formed on the first region and the second region. At least one through-hole is formed in the third region, and the first thermally conductive resin layer is not coated in the third region. The modular frame has an open front surface and an open rear surface. The first region and the second region are positioned apart from each other at the two ends of the bottom that are adjacent to the front surface and the rear surface, respectively. The battery cell includes electrode leads, and The electrode leads protrude toward the open front and open rear surfaces of the module frame.

2. The battery module according to claim 1, The battery module further includes a second thermally conductive resin layer, which is located below the bottom.

3. The battery module according to claim 2, wherein: The battery cell stack is in contact with the second thermally conductive resin layer through the through hole.

4. The battery module according to claim 2, The battery module also includes a heat sink located below the second thermally conductive resin layer.

5. The battery module according to claim 1, wherein: The first region and the second region are located at opposite ends of the bottom, and the third region is located between the first region and the second region.

6. The battery module according to claim 1, wherein: The module frame includes: a U-shaped frame having an open upper surface; and an upper plate configured to cover the open upper surface of the U-shaped frame.

7. The battery module according to claim 1, wherein: The module frame is a single frame, in which the bottom, two sides and the top are integrated.

8. The battery module according to claim 7, wherein: The bottom includes two or more injection holes, which are located in the first region and the second region, respectively.

9. The battery module according to any one of claims 2 to 4, wherein: At least one of the first thermally conductive resin layer and the second thermally conductive resin layer includes a thermally conductive resin. The thermally conductive resin includes at least one of silicone, polyurethane, and acrylic materials.

10. A battery pack comprising one or more battery modules according to claim 1.

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