Vehicle comprising battery pack

Abstract

According to exemplary embodiments of the present invention, a vehicle is provided. The vehicle comprises: a battery pack including a plurality of battery cell assemblies; a temperature controller disposed on the outside of the battery pack; and a chassis accommodating the battery pack and the temperature controller, wherein the temperature controller may include a phase change material.

Description

Vehicle including a battery pack

[0001] The present invention relates to a vehicle. Specifically, it relates to a vehicle comprising a battery pack.

[0002] [Correction pursuant to Rule 91 27.01.2026] This application claims the benefit of Korean application No. 10-2024-0093384, filed on July 16, 2024, which is incorporated herein by reference in its entirety.

[0003] Unlike primary batteries, secondary batteries can be charged and discharged multiple times. Secondary batteries are widely used as energy sources for various wireless devices such as handsets, laptops, and cordless vacuum cleaners. Recently, as the manufacturing cost per unit capacity of secondary batteries has decreased dramatically due to improved energy density and economies of scale, and as the driving range of BEVs (battery electric vehicles) has increased to a level equivalent to that of fuel vehicles, the primary use of secondary batteries is shifting from mobile devices to mobility.

[0004] The trend in the technological development of rechargeable batteries for mobility is the improvement of energy density and safety. The safety of rechargeable batteries is critical as it is directly linked to the lives of passengers. The safety of rechargeable batteries can be achieved through mechanical robustness, the reliability of electrical insulation, and the delay of heat transfer in the event of a thermal runaway event.

[0005] The problem that the technical concept of the present invention aims to solve is to provide a vehicle with enhanced safety.

[0006] The problem that the technical concept of the present invention aims to solve is to provide a vehicle with improved performance and reliability.

[0007] The problem that the technical concept of the present invention aims to solve is to provide a vehicle with improved convenience.

[0008] According to exemplary embodiments of the present invention for solving the above-described problem, a vehicle is provided. The vehicle comprises a battery pack including a plurality of battery cell assemblies; a temperature controller disposed outside the battery pack; and a chassis housing the battery pack and the temperature controller, wherein the temperature controller may include a phase change material.

[0009] The above temperature controller may be voice feedback-based.

[0010] If the temperature of the battery pack exceeds the reference temperature, the temperature controller can absorb heat.

[0011] If the temperature of the battery pack is below a reference temperature, the temperature controller can release heat.

[0012] The battery pack includes a pack housing that accommodates the plurality of battery cell assemblies, and the temperature controller may be attached to one side of the outer wall of the pack housing.

[0013] Each of the above plurality of battery cell assemblies includes a plurality of battery cells, and the temperature controller can be spaced apart from the plurality of battery cells with the pack housing in between.

[0014] The battery pack comprises a pack housing that accommodates the plurality of battery cell assemblies, and the temperature controller is a pad on the outer wall of the pack housing, and the pad may comprise a pad case and a phase change material packaged by the pad case.

[0015] The above pad case may include one selected from silicone, polyurethane, polypropylene, metal, and stainless steel.

[0016] The above temperature controller includes a coating layer applied to either the battery pack or the chassis, and the coating layer may include a capsule containing the phase change material and a binder mixed with the capsule.

[0017] The above temperature controller may include a polymer film that seals the phase change material.

[0018] The above temperature controller may include a heat-conducting compound layer and a phase change material dispersed within the heat-conducting compound layer.

[0019] According to exemplary embodiments of the present invention, a vehicle may include a temperature controller disposed outside the battery pack, thereby managing the temperature of the battery pack by absorbing or releasing heat.

[0020] According to exemplary embodiments of the present invention, a vehicle with enhanced safety can be provided.

[0021] According to exemplary embodiments of the present invention, a vehicle with improved performance and reliability can be provided.

[0022] According to embodiments based on the technical concept of the present invention, a vehicle with improved convenience can be provided.

[0023] The effects obtainable from the exemplary embodiments of the present invention are not limited to those mentioned above, and other unmentioned effects can be clearly derived and understood by those skilled in the art to which the exemplary embodiments of the present disclosure belong from the following description. That is, unintended effects resulting from the implementation of the exemplary embodiments of the present disclosure can also be derived by those skilled in the art from the exemplary embodiments of the present disclosure.

[0024] FIG. 1 is a drawing showing a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0025] FIG. 2 is a drawing showing a part of a vehicle configuration including a battery pack according to exemplary embodiments based on the technical concept of the present invention.

[0026] FIG. 3 is a drawing showing a part of a vehicle configuration including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0027] FIG. 4 is a diagram showing heat transfer within a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0028] FIG. 5 is a diagram showing heat transfer within a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0029] FIG. 6 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0030] FIG. 7 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0031] FIG. 8 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0032] FIG. 9 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0033] FIG. 10 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention.

[0034] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings. Instead, based on the principle that the inventor can appropriately define the concepts of terms to best describe his invention, they should be interpreted in a meaning and concept consistent with the technical spirit of the present invention.

[0035] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0036] In addition, in describing the present invention, if it is determined that a detailed description of related known components or functions may obscure the essence of the invention, such detailed description is omitted.

[0037] Since embodiments of the present invention are provided to more fully explain the invention to those skilled in the art, the shapes and sizes of the components in the drawings may be exaggerated, omitted, or schematically depicted for clearer explanation. Accordingly, the size or proportion of each component does not entirely reflect the actual size or proportion.

[0038]

[0039] (1st embodiment)

[0040] FIG. 1 is a drawing showing a vehicle (1000) including a battery pack (100) according to exemplary embodiments of the technical concept of the present invention.

[0041] Referring to FIG. 1, the vehicle (1000) may be, for example, an electric vehicle, a hybrid vehicle, or a plug-in hybrid vehicle, and may include a battery pack (100) according to one embodiment of the present invention. The vehicle (1000) may include a four-wheeled vehicle and a two-wheeled vehicle. The vehicle (1000) may operate by receiving power from the battery pack (100) according to one embodiment of the present invention. Hereinafter, the battery pack (100) will be described with reference to FIGS. 2 to 5 together.

[0042]

[0043] FIG. 2 is a drawing showing a part of a vehicle including a battery pack (100) according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 2 is a cross-sectional view showing a battery pack (100), a temperature controller (200), and a chassis (300).

[0044] FIG. 3 is a drawing showing a part of a vehicle including a battery pack (100) according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 3 is a plan view of the battery pack (100).

[0045] Referring to FIGS. 2 and FIGS. 3, the vehicle may include a battery pack (100), a thermostat (200), and a chassis (300).

[0046] The battery pack (100) may include a pack housing (110) and a plurality of battery cell assemblies (120). The battery pack (100) may be a final product mounted in an application such as a vehicle.

[0047] The pack housing (110) may provide a space for mounting battery cell assemblies (120). The pack housing (110) may include a base plate (111), side walls (112, 113, 114, 115), a center beam (116), and cross beams (117).

[0048] Here, the first direction (X direction) and the second direction (Y direction) may be substantially parallel to the mounting surface of the base plate (111) (i.e., the surface facing the battery cell assembly (120)), and the third direction (Z direction) may be substantially perpendicular to the mounting surface of the base plate (111).

[0049] Each of the base plate (111) and the side walls (112, 113) can be provided by an extrusion process. The extrusion direction of each of the base plate (111) and the side walls (112, 113) can be a first direction (X direction). The side walls (114, 115) can also be provided by an extrusion process. The side walls (112, 113, 114, 115) can be substantially perpendicular to the base plate (111).

[0050] According to exemplary embodiments, the base plate (111) and side walls (112, 113) may be joined by friction stir welding. The base plate (111) may include a plurality of unit plates joined by friction stir welding.

[0051] The center beam (116) may be extended in a first direction (X direction). The center beam (116) may be interposed between the side walls (112, 113). The center beam (116) may be included in a center plate, which is one of a plurality of unit plates friction-stirred together. Accordingly, the center beam (116) may be formed together with the center plate, and the center beam (116) may be a continuous element integral with the center plate.

[0052] The cross beams (117) can be extended in a second direction (Y direction). The cross beams (117) can be interposed between the side walls (114, 115).

[0053] The base plate (111) may include a plurality of cooling channels. The plurality of cooling channels may provide a passage for the movement of a refrigerant, such as water. The plurality of cooling channels may be formed by an extrusion process. The plurality of cooling channels may extend in a first direction (X direction). The plurality of cooling channels may be spaced apart in a second direction (Y direction).

[0054] A plurality of battery cell assemblies (120) may be placed on a base plate (111) of a pack housing (110). The base plate (111) may support the plurality of battery cell assemblies (120). Side walls (112, 113, 114, 115) may horizontally surround the plurality of battery cell assemblies (120). The side walls (112, 113, 114, 115) may protect the plurality of battery cell assemblies (120). The plurality of battery cell assemblies (120) may be placed on the base plate (111) in a space defined by cross beams (117).

[0055] The battery cell assembly (120) may further include a plurality of battery cells (121) arranged in a first direction (X direction) and a pad (122) arranged between the plurality of battery cells (121). The pad (122) is arranged between the plurality of battery cells (121) in the first direction (X direction) and may overlap with the plurality of battery cells (121) in the first direction (X direction). For example, the pad (122) may be parallel to the plurality of battery cells (121).

[0056] The pad (122) can absorb swelling of a plurality of battery cells (121). The pad (122) may include a flexible material. The pad (122) may include PU (Polyurethane). The pad (122) may also include a fire-resistant material.

[0057] The battery pack (100) may further include a pack lead (119) coupled to the side walls (112, 113, 114, 115) of the pack housing (110). The pack lead (119) may cover elements mounted inside the battery pack (100), such as a plurality of battery cell assemblies (120) and electrical components. The pack lead (119) may be secured to the pack housing (110) by mechanical coupling means, such as bolting.

[0058] In FIG. 3, the arrangement of multiple battery cell assemblies (120) can be described as a 3 * 2 arrangement. The arrangement of multiple battery cell assemblies (120) disclosed in FIG. 3 is a non-limiting example and does not limit the technical concept of the present invention in any sense. A person skilled in the art will be able to easily arrive at a plurality of battery cell assemblies (120) arranged in an M * N arrangement (where M and N are each integers greater than or equal to 2) based on what is described herein.

[0059] The battery pack (100) may further include a Battery Management System (BMS). The BMS may be configured to perform monitoring, balancing, and control of the battery pack (100). Monitoring of the battery pack (100) may include measuring the voltage and current of specific nodes within a plurality of battery cell assemblies (120) and measuring the temperature of set locations within the battery pack (100). The battery pack (100) may include measuring instruments for measuring the voltage, current, and temperature described above.

[0060] Balancing of the battery pack (100) is an operation that reduces deviations between multiple battery cell assemblies (120). Control of the battery pack (100) includes preventing overcharging, over-discharging, and overcurrent. Through monitoring, balancing, and control, the battery pack (100) can operate under optimal conditions, and accordingly, the shortening of the lifespan of each of the multiple battery cell assemblies (120) can be prevented.

[0061] The battery pack (100) may further include additional electrical components such as a cooling device, a Power Relay Assembly (PRA), and a safety plug. The cooling device may include a cooling fan. The cooling fan can prevent overheating of each of the multiple battery cell assemblies (120) by circulating air inside the battery pack (100). The PRA may be configured to supply or cut off power from the high-voltage battery to an external load (e.g., a vehicle motor). The PRA can protect the multiple battery cell assemblies (120) and the external load (e.g., a vehicle motor) by cutting off power supply to the external load (e.g., a vehicle motor) in situations where abnormal voltage, such as a voltage surge, occurs. Additional electrical components may be interposed between the multiple battery cell assemblies (120) and the side wall (115). The space between the battery cell assemblies (120) and the side wall (115) may be referred to as an electrical component mounting area.

[0062] The battery pack (100) may further include a plurality of interbusbars configured to electrically connect a plurality of battery cell assemblies (120). The plurality of battery cell assemblies (120) may be connected in series by the plurality of interbusbars. Accordingly, the battery pack (100) may be configured to output a high voltage to an external load (e.g., a motor of a vehicle).

[0063] The temperature controller (200) may be placed outside the battery pack (100). For example, the temperature controller (200) may be placed at the bottom of the battery pack (100). The temperature controller (200) may be placed under the base plate (111). Unlike what is illustrated, the temperature controller (200) may be placed at the top of the battery pack (100). The temperature controller (200) may be placed adjacent to the battery cell assembly (120). The temperature controller (200) may be placed between the battery pack (100) and the chassis (300). The temperature controller (200) may be placed between the base plate (111) and the chassis (300).

[0064] The temperature controller (200) can be in contact with the battery pack (100). The temperature controller (200) can be in contact with the base plate (111) of the battery pack (100). The temperature controller (200) can be attached to one side of the pack housing (110). For example, the temperature controller (200) can be attached to one side of the base plate (111).

[0065] The temperature controller (200) may be spaced apart from the battery cell assembly (120) with the pack housing (110) in between. The temperature controller (200) may be spaced apart from the battery cell assembly (120) with the base plate (111) in between. The temperature controller (200) may be spaced apart from the battery cell (121) with the base plate (111) in between. The temperature controller (200) may be adjacent to the chassis (300).

[0066] The temperature controller (200) may include a phase change material (PCM). A phase change material may refer to a material that changes phase while absorbing or releasing heat. For example, the phase change material may change phase by absorbing heat. For example, the phase change material may change phase by releasing heat.

[0067] The chassis (300) can accommodate a battery pack (100) and a temperature controller (200). The shape of the chassis (300) is not limited to that illustrated. The chassis (300) may refer to a structure that supports and connects the main components of the vehicle (1000) of FIG. 1. The chassis (300) may include the outer frame of the vehicle (1000) of FIG. 1.

[0068]

[0069] FIG. 4 is a drawing showing heat transfer within a vehicle including a battery pack (100) according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 4 is a drawing showing heat transfer between a battery cell assembly (120) and a temperature controller (200).

[0070] FIG. 5 is a drawing showing heat transfer within a vehicle including a battery pack (100) according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 5 is a drawing showing heat transfer between a battery cell assembly (120) and a temperature controller (200).

[0071] The temperature controller (200) may be based on voice feedback. Specifically, the temperature controller (200) may act to lower the temperature of the battery pack (100) when the temperature rises. Conversely, the temperature controller (200) may act to raise the temperature of the battery pack (100) when the temperature falls. For example, heat may be transferred between the battery cell assembly (120) and the temperature controller (200) within the vehicle.

[0072] Referring to FIG. 4, when the battery cell assembly (120) emits heat, the temperature controller (200) can absorb the heat. For example, when the battery cell assembly (120) emits heat, the heat can be transferred to the temperature controller (200) located adjacent to it. As described above, the temperature controller (200) may include a phase change material, and the phase change material may absorb heat and change phase. For example, it may change phase from solid to liquid or gas, or change phase from liquid to gas. By doing so, the temperature inside the battery pack (100) can be lowered.

[0073] For example, if the temperature of the battery pack (100) exceeds a reference temperature, the temperature controller (200) can absorb heat. For example, the temperature controller (200) can absorb heat generated from the battery cell (121) to lower the temperature of the battery pack (100). The reference temperature may be a preset value for the stability of the battery pack (100). Alternatively, the reference temperature may not be a specific value, but may refer to the initial temperature of the battery pack (100).

[0074] In particular, when a thermal runaway event occurs in a battery cell (121), heat may be transferred to an adjacent battery cell (121), and a temperature controller (200) can absorb the heat to delay the heat transfer.

[0075] Referring to FIG. 5, the temperature controller (200) can release heat and transfer it to the battery cell assembly (120). As described above, the temperature controller (200) may include a phase change material, and the phase change material may release heat and change phases. For example, it may change phases from gas to liquid or solid, or from liquid to solid. By doing so, the temperature of the battery pack (100) may rise.

[0076] For example, if the temperature of the battery pack (100) is below a reference temperature, the temperature controller (200) can release heat. For example, the temperature controller (200) can release heat to raise the temperature of the battery pack (100).

[0077] The vehicle (1000) described with reference to FIGS. 1 to 5 may include a temperature controller (200) that is positioned outside the battery pack (100) and includes a phase change material. By doing so, the temperature of the battery pack (100) can be managed by absorbing or releasing heat through a phase change.

[0078] In addition, since the temperature controller (200) is placed outside the battery pack (100), interference with the battery cell (121), etc., placed inside the battery pack (100) can be avoided. By doing so, the convenience and freedom of the placement location of the temperature controller (200) can be improved.

[0079] According to embodiments of the technical concept of the present invention, a vehicle (1000) including a battery pack (100) with enhanced safety can be provided.

[0080] According to embodiments of the technical concept of the present invention, a vehicle (1000) including a battery pack (100) with improved performance and reliability can be provided.

[0081] According to embodiments of the technical concept of the present invention, a vehicle (1000) including a battery pack (100) with improved convenience can be provided.

[0082]

[0083] (2nd Example)

[0084] FIG. 6 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 6 is an enlarged cross-sectional view corresponding to area A of FIG. 2, showing a temperature controller (201) outside the battery pack (100).

[0085] Referring to FIGS. 2 and FIGS. 6, the vehicle (1000) may include a temperature controller (201) positioned outside the battery pack (100).

[0086] In some embodiments, the temperature controller (201) may be a pad placed outside the battery pack (100). Specifically, the temperature controller (201) may be a pad on the outer wall of the pack housing (110) of the battery pack (100). For example, the temperature controller (201) may be a pad under the base plate (111) of the battery pack (100). The temperature controller (201) may include a pad case (201C) and a phase change material (201I). The phase change material (201I) may be packaged by the pad case (201C). The phase change material (201I) may be surrounded by the pad case (201C) so that it does not leak out of the pad case (201C). In particular, even if the phase of the phase change material (201I) changes by absorbing or releasing heat, it may not leak out of the pad case (201C).

[0087] For example, the pad case (201C) may include one selected from silicone, polyurethane, polypropylene, metal, and stainless steel.

[0088]

[0089] (3rd Example)

[0090] FIG. 7 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 7 is an enlarged cross-sectional view corresponding to area A of FIG. 2, showing a temperature controller (202) outside the battery pack (100).

[0091] Referring to FIGS. 2 and FIGS. 7, the vehicle (1000) may include a temperature controller (202) positioned outside the battery pack (100).

[0092] In some embodiments, the temperature controller (202) may be a coating layer. Specifically, the temperature controller (202) may be a coating layer applied to the battery pack (100). For example, the temperature controller (202) may be a coating layer applied to the outer wall of the pack housing (110) of the battery pack (100). Specifically, the temperature controller (202) may be a coating layer applied to the chassis (300). For example, the temperature controller (202) may be a coating layer applied to the inner wall of the chassis (300).

[0093] Specifically, the temperature controller (202) may include a capsule (202C) containing a phase change material and a binder (202B) mixed with the capsule (202C). The capsule (202C) may include a polymer shell (202C_1) and a phase change material (202C_2). The capsule (202C) may be spherical, for example, and may consist of an internal phase change material (202C_2) and a polymer shell (202C_1) surrounding it. The capsule (202C) may be mixed with the binder (202B) and applied to a place to be coated, and the mixture may be dried to form a coating layer. For example, a mixture of the capsule (202C) and the binder (202B) may be applied to the outer wall of the pack housing (110) of the battery pack (100), and this may be dried to form the temperature controller (202). For example, a mixture of capsule (202C) and binder (202B) can be applied to the inner wall of the chassis (300), and this can be dried to form a temperature controller (202).

[0094] The phase change material (202C_2) can be encapsulated by a polymer shell (202C_1) and may not leak out of the capsule (202C). In particular, even if the phase of the phase change material (202C_2) changes by absorbing or releasing heat, it may not leak out of the capsule (202C).

[0095] The capsule (202C) may have fixing and / or adhesive force by the binder (202B). For example, the capsule (202C) containing the phase change material (202C_2) may be adhered to or fixed on the outer wall of the pack housing (110) or on the inner wall of the chassis (300) by the binder (202B).

[0096]

[0097] (Fourth Example)

[0098] FIG. 8 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 8 is an enlarged cross-sectional view corresponding to area A of FIG. 2, showing a temperature controller (203) outside the battery pack (100).

[0099] Referring to FIGS. 2 and FIGS. 8, the vehicle (1000) may include a temperature controller (203) placed outside the battery pack (100).

[0100] In some embodiments, the temperature controller (203) may comprise a laminated form of a plurality of polymer films. Specifically, the temperature controller (203) may comprise a plurality of first films (203F1) and second films (203F2) that are alternately laminated. The first film (203F1) is a polymer film and may be formed by alternately laminating with the second film (203F2) which contains a phase change material. The first film (203F1) may not contain a phase change material. In other embodiments, the first film (203F1) may contain a phase change material. The second film (203F2) may be sealed to prevent leakage of the phase change material.

[0101]

[0102] (5th Example)

[0103] FIG. 9 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 9 is an enlarged cross-sectional view corresponding to area A of FIG. 2, showing a temperature controller (204) outside the battery pack (100).

[0104] Referring to FIGS. 2 and FIGS. 9, the vehicle (1000) may include a temperature controller (204) placed outside the battery pack (100).

[0105] In some embodiments, the temperature controller (204) may include an outer layer (204OF) and an inner layer (204IF) in the form of a polymer film. Specifically, the inner layer (204IF) may be formed by including a phase change material. For example, the inner layer (204IF) may be a polymer film containing a phase change material. The outer layer (204OF) may not contain a phase change material and may be a layer for laminating the inner layer (204IF). The outer layer (204OF) may laminate the phase change material between them to prevent leakage of the phase change material.

[0106]

[0107] (6th Example)

[0108] FIG. 10 is an enlarged cross-sectional view showing a part of a vehicle including a battery pack according to exemplary embodiments of the technical concept of the present invention. Specifically, FIG. 10 is an enlarged cross-sectional view corresponding to area A of FIG. 2, showing a temperature controller (205) outside the battery pack (100).

[0109] Referring to FIGS. 2 and FIGS. 10, the vehicle (1000) may include a temperature controller (205) placed outside the battery pack (100).

[0110] In some embodiments, the temperature controller (205) may comprise a compound layer (205C) and a phase change material (205P) dispersed within the compound layer (205C). For example, the compound layer (205C) may comprise a high-viscosity grease or paste. The phase change material (205P) may comprise a capsule form.

[0111] Specifically, a compound layer (205C) in which a phase change material (205P) is dispersed may be applied to the outside of a battery pack (100) to form a temperature controller (205). Due to the compound layer (205C), the phase change material (205P) may not leak. In particular, even if the phase of the phase change material (205P) changes by absorbing or releasing heat, the phase change material (205P) may not leak.

[0112]

[0113] The present invention has been described in more detail above through drawings and embodiments. However, the configurations described in the drawings or embodiments described in this specification are merely one embodiment of the present invention and do not represent all technical concepts of the present invention; therefore, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

Claims

1. A battery pack comprising a plurality of battery cell assemblies; A temperature controller positioned on the outside of the battery pack; and It includes a chassis that accommodates the battery pack and the temperature controller, and A vehicle characterized by the above-mentioned temperature controller including a phase change material.

2. In Paragraph 1, A vehicle characterized by the above-mentioned temperature controller being voice feedback-based.

3. In Paragraph 2, A vehicle characterized in that when the temperature of the battery pack exceeds a reference temperature, the temperature controller absorbs heat.

4. In Paragraph 2, A vehicle characterized in that, when the temperature of the battery pack is below a reference temperature, the temperature controller emits heat.

5. In Paragraph 1, The battery pack includes a pack housing that accommodates the plurality of battery cell assemblies, and A vehicle characterized in that the above-described temperature controller is attached to one side of the outer wall of the above-described pack housing.

6. In Paragraph 5, Each of the above plurality of battery cell assemblies includes a plurality of battery cells, and A vehicle characterized in that the above-described temperature controller is spaced apart from the plurality of battery cells with the above-described pack housing in between.

7. In Paragraph 1, The battery pack includes a pack housing that accommodates the plurality of battery cell assemblies, and The above temperature controller is a pad on the outer wall of the pack housing, and A vehicle characterized by comprising the above pad, a pad case, and the above phase change material packaged by the pad case.

8. In Paragraph 7, A vehicle characterized in that the above pad case comprises one selected from silicone, polyurethane, polypropylene, metal, and stainless steel.

9. In Paragraph 1, The above temperature controller includes a coating layer applied to either the battery pack or the chassis, and A vehicle characterized in that the coating layer comprises a capsule containing the phase change material and a binder mixed with the capsule.

10. In Paragraph 1, A vehicle characterized in that the above-described temperature controller includes a polymer film that seals the phase change material.

11. In Paragraph 1, A vehicle characterized by the above-described temperature controller comprising a heat-conducting compound layer and a phase change material dispersed within the heat-conducting compound layer.

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