Battery module and battery pack including same

Abstract

The present invention relates to a battery module including: a plurality of battery cells stacked on each other; a plurality of cooling plates and non-conductive pads alternately arranged between the plurality of battery cells along a stacking direction of the plurality of battery cells; and cooling fins arranged between the plurality of battery cells and the non-conductive pads along the stacking direction of the plurality of battery cells.

Description

Battery module and battery pack including the same

[0001] This application claims the benefit of the filing date of Korean Patent Application No. 10-2025-0005975 filed with the Korean Intellectual Property Office on January 15, 2025, the entire contents of which are incorporated herein.

[0002] The present invention relates to a battery module and a battery pack including the same, and more specifically, to a battery module that cools a battery cell using thermal conduction and a battery pack including the same.

[0003] Secondary batteries, which possess electrical characteristics such as high energy density and high applicability across product groups, are widely applied not only to portable devices but also to electric vehicles (EVs) or hybrid electric vehicles (HEVs) powered by electric sources. These secondary batteries are attracting attention as a new energy source for enhancing eco-friendliness and energy efficiency, not only for the primary advantage of drastically reducing the use of fossil fuels but also because they generate no by-products from energy use.

[0004] Currently, widely used types of secondary batteries include lithium-ion batteries, lithium-polymer batteries, nickel-cadmium batteries, nickel-hydrogen batteries, and nickel-zinc batteries. The operating voltage of these unit secondary battery cells, or unit battery cells, is approximately 2.5V to 4.5V. Therefore, if a higher output voltage is required, multiple battery cells are connected in series to form a battery pack. Additionally, depending on the charge / discharge capacity required for the battery pack, multiple battery cells are connected in parallel to form a battery pack. Accordingly, the number of battery cells included in the battery pack can be varied depending on the required output voltage or charge / discharge capacity.

[0005] Meanwhile, when configuring a battery pack by connecting multiple battery cells in series or parallel, it is common practice to first configure a battery module containing at least one battery cell, and then use this at least one battery module to add other components to form the battery pack.

[0006] Conventional battery modules are generally configured to include multiple battery cells stacked on top of each other and a module case that accommodates the multiple battery cells. In the case of such conventional battery modules, if overheating occurs in a specific battery cell among the multiple battery cells due to an abnormal situation, the heat generated from the overheated battery cell is transferred directly to adjacent battery cells, causing thermal runaway and leading to greater risks such as the explosion of the battery module.

[0007] Therefore, when overheating occurs due to an abnormal situation in a battery cell, it is necessary to seek a method to prevent thermal runaway by dispersing the heat of the battery cell in which the abnormal situation occurred and preventing direct heat transfer to adjacent battery cells.

[0008] Based on the problems of the aforementioned prior art, the present invention aims to provide a battery module capable of dispersing heat from a battery cell in which an abnormal situation has occurred and preventing direct heat transfer to adjacent battery cells, and a battery pack including the same.

[0009] One embodiment of the present invention provides a battery module comprising a plurality of battery cells stacked together; a cooling plate disposed between at least one adjacent battery cell, a non-conductive pad disposed between at least one adjacent battery cell, and cooling fins disposed between the adjacent battery cells and the non-conductive pad.

[0010] One embodiment of the present invention provides a battery pack including the battery module.

[0011] One embodiment of the present invention provides an electric vehicle comprising the battery pack.

[0012] A battery module according to an embodiment of the present invention and a battery pack including the same can prevent direct heat transfer to adjacent battery cells, thereby preventing thermal runaway of the battery module and improving the safety of the battery module and the battery pack.

[0013] FIG. 1 is a perspective view illustrating a battery module according to one embodiment of the present invention.

[0014] FIG. 2 is a cross-sectional view illustrating a battery module according to one embodiment of the present invention.

[0015] FIG. 3 is a perspective view illustrating a battery module according to another embodiment of the present invention.

[0016] FIG. 4 is a cross-sectional view illustrating a cooling plate according to one embodiment of the present invention.

[0017] FIG. 5 is a cross-sectional view illustrating a cooling fin according to one embodiment of the present invention.

[0018] FIG. 6 is a cross-sectional view illustrating a cooling fin according to another embodiment of the present invention.

[0019] FIG. 7 is a perspective view illustrating a battery pack including a battery module according to one embodiment of the present invention.

[0020] FIG. 8 is a perspective view illustrating a means of transport including a battery pack according to one embodiment of the present invention.

[0021] [Explanation of the symbol]

[0022] 1: Battery module

[0023] 2: Pack Housing

[0024] 3: Battery pack

[0025] 10: Battery cell

[0026] 20: Cooling plate

[0027] 21: Main body

[0028] 22: Euro

[0029] 23: Supply Department

[0030] 24: Discharge section

[0031] 30: Non-conductive pad

[0032] 40: Cooling fins

[0033] 41: Main body

[0034] 41a: First main body part

[0035] 41b: Second main body part

[0036] 42: Connection

[0037] V: Means of transportation

[0038] The detailed description of the present invention is intended to fully explain the invention to those skilled in the art. Throughout the specification, when a part is described as "comprising" a certain component or "featuring" a certain structure and shape, unless specifically stated otherwise, this does not mean that other components are excluded or other structures and shapes are excluded, but rather that other components, structures, and shapes may be included.

[0039] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are presented and described in detail in the detailed description. However, this is not intended to limit the scope of the invention with respect to the embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0040] The present invention will be described in detail below with reference to the drawings. However, the drawings are intended to illustrate the invention, and the scope of the invention is not limited by the drawings.

[0041]

[0042] FIG. 1 is a perspective view illustrating a battery module (1) according to one embodiment of the present invention, FIG. 2 is a cross-sectional view illustrating a battery module (1) according to one embodiment of the present invention, and FIG. 3 is a perspective view illustrating a battery module (1) according to another embodiment of the present invention.

[0043]

[0044] A battery module (1) according to the present invention includes a plurality of battery cells (10), a module case (not shown), a plurality of cooling plates (20), a plurality of non-conductive pads (30) and cooling fins (40).

[0045] A battery cell (10) is a rechargeable power generation device comprising a stack of a positive electrode, a negative electrode, and a separator, and a pouch case containing a space in which the stack is housed and an electrolyte is stored. Additionally, a positive electrode tab and a negative electrode tab may be included on one side or both sides of the stack, respectively.

[0046] In one embodiment, the laminate comprises one or more anodes, cathodes, and separators, and may be laminated in the order of cathode, separator, anode, and separator.

[0047] In another embodiment, the laminate may include a stack-and-fold structure in which a cathode and an anode are stacked in sequence between a separator folded in a zigzag shape.

[0048] In another embodiment, the laminate can be wound after a single anode, a separator, and a cathode are laminated in sequence.

[0049] The positive electrode can be formed by coating a positive active material on one or both sides of a plate-shaped positive current collector, and cutting the uncoated portion into a positive tab shape.

[0050] The cathode active material may include lithium cobalt oxide, which has a high operating voltage and excellent capacity characteristics; lithium nickel oxide, which has a high reversible capacity and facilitates the implementation of a large-capacity battery; lithium nickel cobalt oxide, in which part of the nickel is substituted with cobalt; lithium nickel cobalt metal oxide, in which part of the nickel is substituted with manganese, cobalt, or aluminum; lithium manganese-based oxide, which has excellent thermal stability and is inexpensive; and lithium iron phosphate, which has excellent stability.

[0051] The cathode may include a cathode current collector, a cathode active material portion, and a cathode non-current portion. The cathode current collector may include a thin metal plate with excellent conductivity, for example, copper (Cu) or nickel (Ni) foil.

[0052] The cathode is formed by coating a cathode active material on one or both sides of a cathode current collector. The cathode active material portion is formed by coating or applying the cathode active material, and the cathode uncoated portion can be formed by cutting into a cathode tab shape without coating or applying the cathode active material.

[0053] The negative electrode active material may be, for example, carbon materials such as crystalline carbon, amorphous carbon, carbon composites, carbon fibers, lithium metal, or lithium alloy. In this case, for high capacity design, the negative electrode active material may further include, for example, non-graphite-based SiO (silica) or SiC (silicon carbide).

[0054] The area of ​​the negative electrode included in the electrode assembly according to the present invention may be larger than that of the positive electrode. Accordingly, by setting the area of ​​the negative electrode to be larger than the area of ​​the corresponding positive electrode, it is possible to prevent lithium from being deposited on the negative electrode.

[0055] The positive and negative tabs transfer electrons collected in the current collector to an external circuit and may protrude in opposite directions or in the same direction from the electrode assembly of the stack structure or the stack / folding structure.

[0056] The battery cell (10) may include electrode tabs formed by extending a positive electrode and a negative electrode on one or both sides of a laminate. For example, if the positive electrode extends to the left side of one side of the laminate, the negative electrode extends to the right side of one side of the laminate, so that the positive electrode tab and the negative electrode tab are positioned so that they are spaced apart from one side of the laminate.

[0057] The separator prevents internal short circuits that may occur when the anode and cathode come into contact, and may include a porous material to facilitate the movement of ions between the electrodes.

[0058] In one embodiment, the separator may include a substrate layer made of a porous material. The substrate layer may include, for example, any one selected from the group consisting of polyethylene (PE), polystyrene (PS), polypropylene (PP), and a copolymer of polyethylene (PE) and polypropylene (PP).

[0059] In another embodiment, the separator may include a Safety Reinforced Separator (SRS) membrane. That is, the separator may include a substrate layer made of a porous material and a coating layer formed by applying a mixed slurry, which is a mixture of inorganic particles and a binder polymer, coated on the substrate layer. Preferably, the coating layer includes ceramic particles and has a uniform pore structure formed by the interstitial volume between the ceramic particles, which are active layer components, in addition to the pore structure contained in the separator substrate itself.

[0060] The coating layer may include ceramic particles comprising at least one selected from the group consisting of alumina, silica, TiO2, SiC, and MgAl2O4. By including such a coating layer, the safety of the electrode assembly can be enhanced. Additionally, the coating layer may further include a lithium salt.

[0061] The pouch case includes a lower case in which a battery cell (10) and an electrolyte are stored, and an upper case coupled to the lower case. The case can be divided into an upper case and a lower case by folding the middle of a rectangular pouch film formed integrally.

[0062] Additionally, a receiving groove for accommodating a battery cell (10) is formed in the lower case through press processing or the like, and a sealing portion for sealing with the upper case is formed. The sealing portion can be formed along one side where the upper case and the lower case are in contact as a whole, and along the remaining three sides. The pouch case includes two long sides where the upper case and the lower case face each other, and two short sides that face each other perpendicular to the two long sides.

[0063] The electrode lead electrically connects the battery cell (10) and an external device and can be connected to an electrode tab. Accordingly, the electrode lead may include a positive lead and a negative lead.

[0064] The positive lead and the negative lead may be provided to protrude outward from one side of the battery cell (10) toward the outside of the pouch case. More specifically, the positive lead and the negative lead are drawn out through the side facing the side (second short side) of the two short sides of the pouch case where the upper case and the lower case are connected (first short side). At this time, an insulating member is attached to each of the positive lead and the negative lead to prevent a short circuit between the positive and negative leads and the pouch case.

[0065]

[0066] The above module case can accommodate the plurality of battery cells (10). To this end, the module case may be provided with a receiving space capable of accommodating the plurality of battery cells (10).

[0067] The battery cells (10) may include 2 or more, 5 or more, or 10 or more, and 25 or fewer, 20 or fewer, or 15 or fewer, but the number of battery cells can be changed as needed and is not specifically limited.

[0068]

[0069] The cooling plate (20) is in direct contact with the battery cell (10) and can reduce the temperature of the battery cell (10) that has increased due to overheating in abnormal situations.

[0070] In one embodiment, the cooling plate (20) may be provided as a thermally conductive metal plate. Thus, the heat generated in the battery cell (10) is transferred to the cooling plate (20), thereby cooling the battery cell (10).

[0071] FIG. 4 is a cross-sectional view illustrating a cooling plate (20) according to one embodiment of the present invention.

[0072] Referring to FIG. 4, a cooling plate (20) may have a cooling medium flowing inside it, thereby exchanging the temperature of the battery cell (10) with the cooling medium and reducing the temperature of the battery cell (10). The cooling plate (20) may include a main body (21) that determines the shape of the cooling plate (20), a cooling channel (22) through which a cooling medium flows inside the main body (21), a supply section (23) provided on one side of the main body (21) to supply the cooling medium to the cooling channel (22), and a discharge section (24) through which the cooling medium, having completed heat exchange with the battery cell (10), is discharged to the outside. At this time, the main body (21) may be made of a metal material.

[0073]

[0074] The non-conductive pad (30) can prevent at least one of heat and electricity (or current) from being transferred between adjacent battery cells (10). That is, the non-conductive pad (30) may include an insulating pad or an insulating pad, and preferably, it may be an insulating pad.

[0075] The non-conductive pad (30) can prevent direct heat transfer to adjacent battery cells (10) when an abnormal situation occurs and the heat of the battery cell (10) is not dispersed and the battery cell (10) undergoes thermal runaway.

[0076] The non-conductive pad (30) can prevent (insulate) current from flowing between multiple battery cells (10).

[0077] The non-conductive pad (30) is not limited to a specific material as long as it can prevent heat transfer between adjacent battery cells (10), but preferably, the non-conductive pad (30) according to the present invention may include either a silicon pad (Si Pad) or an aerogel pad.

[0078] Also, the non-conductive pad (30) can be compressed when swelling of the battery cell (10) occurs due to repeated charging and discharging, thereby absorbing the volume expansion of the battery cell (10).

[0079] The non-conductive pad (30) may be provided in a flat form. Alternatively, the non-conductive pad (30) may be provided in a form where the thickness of the central region is thinner than the thickness of the edge region to prevent pressure from concentrating in the central region of the battery cell (10). Alternatively, the battery module (1) may include both a non-conductive pad (30) in a flat form and a non-conductive pad (30) in a form where the thickness of the central region is thinner. For example, a non-conductive pad (30) in a flat form may be located at the top and bottom of the battery module (1), and the non-conductive pad (30) in contact with the battery cell (10) may be in a form where the thickness of the central region is thinner.

[0080]

[0081] The cooling plate (20) and the non-conductive pad (30) according to the present invention are provided with a size that covers the entire side of the battery cell (10). Preferably, the area of ​​the side of the cooling plate (20) and the non-conductive pad (30) is larger than the area of ​​the side of the battery cell (10). Here, the area of ​​the side of the battery cell (10), the cooling plate (20), and the non-conductive pad (30) refers to the size of the range of a two-dimensional plane of the surface where the battery cell (10), the cooling plate (20), and the non-conductive pad (30) face or contact each other.

[0082] Here, one side refers to the side where the cooling plate (20) and the non-conductive pad (30) face or contact the battery cell (10), and both sides include both the contacting side and the opposite side.

[0083] In the battery module (1) according to the present invention, a cooling plate (20) and a non-conductive pad (30) may be alternately arranged between a plurality of battery cells (10). Referring to FIGS. 1 and 2, the non-conductive pad (30), battery cell (10), and cooling plate (20) may be arranged in that order, so that the non-conductive pad (30) is positioned on the uppermost surface and the lowermost surface of the battery module (1), respectively.

[0084] Alternatively, referring to FIG. 3, the battery module (1) according to the present invention may be arranged in the order of a cooling plate (20), a battery cell (10), and a non-conductive pad (30), so that the cooling plate (20) may be positioned on the uppermost surface and the lowermost surface of the battery module (1), respectively.

[0085] The battery module (1) according to the present invention preferably has a structure in which a non-conductive pad (30) is positioned on each of the top surface and the bottom surface. By positioning the non-conductive pad (30) on the top surface and the bottom surface of the battery module (1), after stacking the battery cell (10), cooling plate (20), and non-conductive pad (30), physical pressure can be applied in the direction of the center of the battery module (1) to bring the battery cell (10), cooling plate (20), non-conductive pad (30), and cooling fin (40) into close contact. As a result, the battery cell (10) and the cooling plate (20), and the battery cell (10) and the cooling fin (40) are brought into close contact, thereby increasing cooling efficiency.

[0086] The thickness of the non-conductive pad (30) and the thickness of the cooling plate (20) may be the same as the thickness of the battery cell (10) or thinner than the thickness of the battery cell (10). Preferably, the thickness of the non-conductive pad (30) and the thickness of the cooling plate (20) may be 1 mm to 15 mm. More preferably, the thickness of the non-conductive pad (30) and the thickness of the cooling plate (20) may be 4 mm to 12 mm.

[0087] The non-conductive pad (30) may be thinner than the cooling plate (20). The thickness of the non-conductive pad (30) may be 40% to 60% of the thickness of the cooling plate (20), and preferably 45% to 55%.

[0088] When a cooling plate (20) is placed between multiple battery cells (10), a problem arises in that the stacking length of the battery module (1) increases.

[0089] Accordingly, the battery module (1) according to the present invention reduces the number of cooling plates (20) and positions a non-conductive pad (30) and a cooling fin (40) that are thinner than the cooling plate (20) at the location of the omitted cooling plate (20), thereby minimizing the increase in the stacking length of the battery module (1) and maintaining the cooling efficiency of the battery cell (10).

[0090]

[0091] The cooling fins (40) can remove heat generated from the battery cells (10) by direct contact with the plurality of battery cells (10) through conduction.

[0092] Accordingly, the cooling fin (40) may include a thermally conductive metal plate. For example, the cooling fin (40) may be either an aluminum plate or a stainless steel plate, and preferably, the cooling fin (40) may be an aluminum plate.

[0093] The thermal conductivity of the cooling fins may be 14 W / m·K to 240 W / m·K. Preferably, it may be 50 W / m·K to 240 W / m·K, and more preferably 100 W / m·K to 240 W / m·K.

[0094] FIG. 5 is a cross-sectional view illustrating a cooling fin (40) according to one embodiment of the present invention.

[0095] The cooling fin (40) may include a main body (41) that encloses the non-conductive pad (30) and connecting parts (42) that extend along the stacking direction of the plurality of battery cells (10) at both ends of the main body (41). Specifically, the main body (41) may enclose one side, the other side, and the two opposing sides connecting the one side and the other side of the non-conductive pad (30). Here, the two ends of the main body (41) correspond to the two opposing sides among the sides of the non-conductive pad (30).

[0096] In other words, the cooling fin (40) includes a pair of connecting parts (42) facing each other, and the main body (41) is positioned in the middle of the connecting parts (42), so that both ends of the main body (41) can come into contact with the pair of connecting parts (42).

[0097] In addition, when the battery module (1) according to the present invention includes a plurality of non-conductive pads (30), the main body portion (41) may be included in a plurality. In other words, the connecting portion (42) may be equal to the length of the battery module (1), and one or more main body portions (41) may be positioned between a pair of connecting portions (42). Here, the length of the battery module (1) refers to the distance between the two ends located in the stacking direction.

[0098] According to the present invention, one side of the main body (41) is in contact with a non-conductive pad (30), and the other side of the main body (41) is in contact with a battery cell (10). Since the main body (41) is in contact with only one battery cell (10), the heat absorption rate of the battery cell (10) is increased.

[0099] Additionally, the connecting part (42) can connect not only a plurality of non-conductive pads (30) positioned apart, but also a plurality of cooling plates (20). That is, the connecting part (42) can connect the side ends of the battery cell (10), the cooling plate (20), and the non-conductive pad (30). Here, connection means that one connecting part (42) comes into contact with all the sides of the plurality of non-conductive pads (30).

[0100] Heat from the battery cell (10) is conducted to the main body (41) of the cooling fin (40), and the conducted heat is transferred from the main body (41) to the connecting part (42) and can be emitted in a direction perpendicular to the stacking direction of the battery module (1). That is, the battery module (1) according to the present invention can surface cool the battery cell (10) through the cooling plate (20) and the main body (41) of the cooling fin. At this time, surface cooling is a cooling process performed through a surface, and the cooling range is wide, so the cooling performance can be greatly increased.

[0101] The thickness of the cooling fin (40) may be 0.1 mm to 0.3 mm. Preferably, the thickness of the cooling fin (40) may be 0.1 mm to 0.25 mm, and more preferably 0.1 mm to 0.15 mm.

[0102] Also, the sum of the thickness of the non-conductive pad (30) and the thickness of the cooling fins (40) located on each of the one side and the other side of the non-conductive pad (30) can be thinner than the thickness of the cooling plate (20), and thus, the increase in the stacking length of the battery module (1) can be minimized.

[0103] In the battery module (1) according to the present invention, when the side surface area of ​​the cooling plate (20) and the non-conductive pad (30) is the same as the side surface area of ​​the battery cell (10), the side end of the connecting part (42) and the battery cell (10) are in contact, and the connecting part (42) can connect the battery cell (10), the cooling plate (20), and the non-conductive pad (30).

[0104] Alternatively, in the battery module (1) according to the present invention, if the side surface area of ​​the cooling plate (20) and the non-conductive pad (30) is larger than the side surface area of ​​the battery cell (10), a space may be formed between the connecting part (42) and the battery cell (10). That is, the connecting part (42) may not come into contact with the side end of the battery cell (10).

[0105] In the battery module (1) according to the present invention, it is preferable that the side end of the connecting part (42) and the battery cell (10) are in contact so that no space is formed between the connecting part (42) and the battery cell (10), and by not forming a space between the connecting part (42) and the battery cell (10), the volume of the battery module (1) is reduced, thereby increasing the energy density per unit volume of the battery module (1).

[0106] FIG. 6 is a cross-sectional view illustrating a cooling fin (40) according to another embodiment of the present invention. In another embodiment, the cooling fin (40) may have a main body portion (41) positioned on one or both sides of the cooling plate (20). That is, the cooling fin (40) may have a first main body portion (41a) positioned in the middle of a pair of connecting portions (42) and a second main body portion (41b) positioned at both ends.

[0107] A first main body part (41a) and a second main body part (41b) may be provided as a pair, and the pair of first main body parts (41a) and second main body parts (41b) may be positioned apart from each other. A cooling plate (20) and a non-conductive pad (30) may be housed in the space formed by the separation of the pair of first main body parts (41a) and second main body parts (41b).

[0108] In another embodiment, the cooling fin (40) can increase the cooling efficiency of the battery cell (10) as the number of main body parts (41) in contact with the battery cell (10) increases.

[0109]

[0110] According to one embodiment of the present invention, a battery pack (3) including the battery module (1) described above is provided.

[0111] In relation to the above embodiment, referring to FIG. 7, a battery pack (3) is shown in which a battery module (1) is included in a pack housing (2).

[0112] The battery pack according to the above embodiment has high output / high capacity.

[0113] According to one embodiment of the present invention, a means of transportation comprising the battery pack described above is provided.

[0114] In relation to the above embodiment, referring to FIG. 8, a means of transportation (V) including a battery pack (3) is illustrated.

[0115] The means of transportation according to the above embodiment uses a battery pack having high output / high capacity, so it is excellent in terms of stability and safety.

[0116] In one embodiment, the means of transportation (V) may be an electric vehicle.

[0117] To mitigate the effects of climate change by reducing or eliminating greenhouse gas emissions through the advancement of electric vehicle driving technology, the present invention provides a battery pack comprising a battery module that disperses heat from a battery cell in which an abnormal situation has occurred and prevents direct heat transfer to adjacent battery cells, and an electric vehicle comprising the battery pack.

[0118]

[0119] Although the present invention has been described above with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the invention without departing from the spirit and scope of the invention as described in the following claims.

Claims

1. Multiple battery cells stacked on top of each other; A cooling plate disposed between at least one adjacent two battery cells and a non-conductive pad disposed between at least one adjacent two battery cells and A battery module comprising cooling fins disposed between adjacent battery cells and non-conductive pads.

2. A battery module according to claim 1, wherein the cooling plate and the non-conductive pad are alternately arranged between the plurality of batteries along the stacking direction of the plurality of battery cells.

3. A battery module according to claim 1, wherein the cooling fin comprises a main body portion surrounding the non-conductive pad and a connecting portion extending along the stacking direction of the plurality of battery cells at both ends of the main body portion.

4. A battery module according to paragraph 3, wherein the length of the connecting portion of the cooling fin is the same as the length of the battery module.

5. A battery module according to paragraph 3, wherein the main body portion of the cooling fin comprises a plurality of parts.

6. A battery module according to claim 1, wherein the cooling plate includes a cooling channel through which a cooling medium flows.

7. A battery module according to claim 1, wherein the cooling plate and the non-conductive pad are provided with a size that covers one side of the battery cell.

8. The battery module according to claim 1, wherein the battery module comprises insulation pads respectively located on the uppermost surface and the lowermost surface in the stacking direction of the plurality of battery cells.

9. A battery module according to claim 1, wherein the cooling fins remove heat generated from the plurality of battery cells by directly contacting the plurality of battery cells and conducting heat.

10. A battery module according to claim 9, wherein the cooling fins are made of a thermally conductive metal plate.

11. A battery module according to claim 1, wherein the thickness of the non-conductive pad is thinner than the thickness of the cooling plate.

12. A battery pack comprising a battery module according to any one of claims 1 to 11.

13. An electric vehicle including a battery pack pursuant to Paragraph 12.

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