Vehicle including battery pack

Abstract

In accordance with an exemplary embodiment of the present invention, a vehicle is provided. The vehicle includes: a battery pack including a plurality of battery cell assemblies; the temperature controller is arranged outside the battery pack; and a chassis accommodating the battery pack and the temperature controller, where the temperature controller may include a phase change material.

Description

Technical Field

[0001] This disclosure relates to vehicles. More specifically, this disclosure relates to vehicles that include battery packs.

[0002] This application claims the benefit of Korean Patent Application No. 10-2024-0093384, filed on July 6, 2024, the disclosure of which is incorporated herein by reference. Background Technology

[0003] Unlike primary batteries, secondary batteries can be charged and discharged multiple times. They are widely used as power sources for various wireless devices such as mobile phones, laptops, and cordless vacuum cleaners. Recently, due to increased energy density and economies of scale, the manufacturing cost per unit capacity of secondary batteries has significantly decreased. As the cruising range of BEVs (Battery Electric Vehicles) has reached levels comparable to fuel cell vehicles, the primary application of secondary batteries is shifting from mobility devices to transportation.

[0004] Technological development trends in secondary batteries for transportation focus on improving energy density and safety. The safety of secondary batteries for transportation is paramount, as it directly impacts passenger lives. Secondary battery safety can be achieved through mechanical robustness, reliable electrical insulation, and delaying heat transfer during thermal runaway events. Summary of the Invention

[0005] Technical issues

[0006] The technical problem addressed by the technical concept disclosed herein is to provide a vehicle with enhanced safety.

[0007] The technical problem addressed by the technical concept disclosed herein is to provide a vehicle with improved performance and reliability.

[0008] The technical problem addressed by the technical concept disclosed herein is to provide a vehicle with enhanced convenience.

[0009] Technical solution

[0010] According to an exemplary embodiment of this disclosure for addressing the above-mentioned problems, a vehicle is provided. The vehicle includes: a battery pack comprising a plurality of battery cell assemblies; a temperature regulator disposed outside the battery pack; and a chassis housing the battery pack and the temperature regulator, wherein the temperature regulator may include a phase change material.

[0011] Temperature regulators can be based on negative feedback.

[0012] When the battery pack temperature exceeds the reference temperature, the temperature regulator can absorb heat.

[0013] When the battery pack temperature is below the reference temperature, the temperature regulator can release heat.

[0014] The battery pack includes a battery pack housing that houses multiple battery cell assemblies, and a temperature regulator may be attached to a surface of the outer wall of the battery pack housing.

[0015] Each of the multiple battery cell assemblies includes multiple battery cells, and the temperature regulator may be spaced apart from the multiple battery cells, with the battery pack housing inserted between the temperature regulator and the multiple battery cells.

[0016] The battery pack includes a battery pack housing that houses multiple battery cell assemblies, wherein the temperature regulator is a pad on the outer wall of the battery pack housing, and the pad may include a pad housing and a phase change material encapsulated by the pad housing.

[0017] The pad housing may include one selected from the group consisting of silicone resin, polyurethane, polypropylene, metal, and stainless steel.

[0018] The temperature regulator includes a coating applied to a battery pack or chassis, wherein the coating may include a capsule containing a phase change material and an adhesive mixed with the capsule.

[0019] Temperature regulators may include polymer films of sealed phase change materials.

[0020] The temperature regulator may include a thermally conductive composite layer and a phase change material dispersed within the thermally conductive composite layer.

[0021] Beneficial effects

[0022] According to an exemplary embodiment of this disclosure, a vehicle may include a temperature regulator disposed outside the battery pack, thereby enabling the battery pack temperature to be managed by absorbing or releasing heat.

[0023] According to exemplary embodiments of this disclosure, a vehicle with enhanced safety can be provided.

[0024] According to exemplary embodiments of this disclosure, a vehicle with improved performance and reliability can be provided.

[0025] According to embodiments based on the technical concepts of this disclosure, a vehicle with enhanced convenience can be provided.

[0026] The effects achievable from the exemplary embodiments of this disclosure are not limited to those described above, and other effects not mentioned can be clearly derived and understood by those skilled in the art to which the exemplary embodiments of this disclosure pertain. In other words, unintended effects of practicing the exemplary embodiments of this disclosure can also be derived by those skilled in the art from the exemplary embodiments of this disclosure. Attached Figure Description

[0027] Figure 1 This is a diagram illustrating a vehicle including a battery pack according to an exemplary embodiment based on the technical concepts of this disclosure.

[0028] Figure 2 This is a diagram illustrating a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concepts of this disclosure.

[0029] Figure 3 This is a diagram illustrating a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concepts of this disclosure.

[0030] Figure 4 This is a diagram illustrating heat transfer within a vehicle including a battery pack, according to an exemplary embodiment based on the technical concepts of this disclosure.

[0031] Figure 5 This is a diagram illustrating heat transfer within a vehicle including a battery pack, according to an exemplary embodiment based on the technical concepts of this disclosure.

[0032] Figure 6 This is an enlarged cross-sectional view showing a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure.

[0033] Figure 7 This is an enlarged cross-sectional view showing a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure.

[0034] Figure 8 This is an enlarged cross-sectional view showing a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure.

[0035] Figure 9 This is an enlarged cross-sectional view showing a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure.

[0036] Figure 10 This is an enlarged cross-sectional view showing a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure. Detailed Implementation

[0037] In the following, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that the terms and words used in this specification and claims should not be interpreted in their ordinary or dictionary sense, but rather on the basis of the principle that the inventor can define the concepts of the terms in accordance with what he considers best suited to describe his disclosure, and in a meaning and concept consistent with the technical concept of the present disclosure.

[0038] Therefore, it should be understood that the embodiments described herein and the configurations shown in the accompanying drawings are merely the most preferred embodiments of this disclosure, and not an exhaustive list of the technical concepts of this disclosure. Furthermore, various equivalents and modifications may exist at the time of submission.

[0039] Furthermore, in describing this disclosure, detailed descriptions of relevant known configurations or features are omitted where such descriptions would obscure the essence of this disclosure.

[0040] Because the embodiments of this disclosure are provided to explain the disclosure more fully to those skilled in the art, the shapes and dimensions of the components in the drawings may be exaggerated, omitted, or illustrated for clarity. Therefore, the dimensions or proportions of each component do not necessarily indicate its actual size or proportion.

[0041] (First Implementation)

[0042] Figure 1 This is a diagram illustrating a vehicle 1000 including a battery pack 100 according to an exemplary embodiment based on the technical concept of this disclosure.

[0043] Reference Figure 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 embodiments of the present disclosure. The vehicle 1000 may include four-wheeled vehicles and two-wheeled vehicles. The vehicle 1000 can operate by receiving power supplied from the battery pack 100 according to embodiments of the present disclosure. Hereinafter, reference will be made to… Figures 2 to 5 Describe battery pack 100.

[0044] Figure 2 This is a diagram illustrating a partial configuration of a vehicle including a battery pack 100 according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 2 This is a cross-sectional view showing the battery pack 100, the temperature regulator 200, and the chassis 300.

[0045] Figure 3 This is a diagram illustrating a partial configuration of a vehicle including a battery pack 100 according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 3 This is a plan view of battery pack 100.

[0046] Reference Figure 2 and Figure 3 The vehicle may include a battery pack 100, a temperature regulator 200, and a chassis 300.

[0047] The battery pack 100 may include a battery pack housing 110 and a plurality of battery cell assemblies 120. The battery pack 100 may be an end product installed in applications such as vehicles.

[0048] The battery pack housing 110 provides space for the battery cell assembly 120 to be installed. The battery pack housing 110 may include a base plate 111, side walls 112, 113, 114, 115, a central beam 116, and a crossbeam 117.

[0049] Here, the first direction (X direction) and the second direction (Y direction) can 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) can be substantially perpendicular to the mounting surface of the base plate 111.

[0050] Each of the base plate 111 and side walls 112, 113 can be provided by an extrusion process. The extrusion direction of each of the base plate 111 and side walls 112, 113 can be a first direction (X direction). Side walls 114, 115 can also be provided by an extrusion process. Side walls 112, 113, 114, 115 can be substantially perpendicular to the base plate 111.

[0051] According to an exemplary embodiment, the base plate 111 and the side walls 112, 113 can be joined by friction stir welding. The base plate 111 may include multiple unit plates joined by friction stir welding.

[0052] The central beam 116 may extend in a first direction (X direction). The central beam 116 may be inserted between the side walls 112 and 113. The central beam 116 may be included in a central plate, which is one of a plurality of unit plates friction-stir welded together. Therefore, the central beam 116 may be formed together with the central plate, and the central beam 116 may be a continuous element integral with the central plate.

[0053] The crossbeam 117 can extend in a second direction (Y direction). The crossbeam 117 can be inserted between the side walls 114 and 115.

[0054] The base plate 111 may include multiple cooling channels. These cooling channels can provide pathways for the movement of a coolant such as water. The multiple cooling channels can be formed by an extrusion process. The multiple cooling channels may extend in a first direction (X direction). The multiple cooling channels may be spaced apart in a second direction (Y direction).

[0055] Multiple battery cell assemblies 120 can be mounted on the base plate 111 of the battery pack housing 110. The base plate 111 can support the multiple battery cell assemblies 120. Side walls 112, 113, 114, and 115 can horizontally surround the multiple battery cell assemblies 120. The side walls 112, 113, 114, and 115 can protect the multiple battery cell assemblies 120. The multiple battery cell assemblies 120 can be mounted on the base plate 111 within the space defined by the crossbeam 117.

[0056] The battery cell assembly 120 may further include a plurality of battery cells 121 disposed in a first direction (X direction) and a pad 122 disposed between the plurality of battery cells 121. The pad 122 is disposed 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.

[0057] The pad 122 can absorb the expansion of multiple battery cells 121. The pad 122 may include an elastic material. The pad 122 may include polyurethane (PU). The pad 122 may also include a refractory material.

[0058] The battery pack 100 may also include a battery pack cover 119 attached to the side walls 112, 113, 114, 115 of the battery pack housing 110. The battery pack cover 119 may cover components installed inside the battery pack 100, such as multiple battery cell assemblies 120 and electrical components. The battery pack cover 119 may be secured to the battery pack housing 110 by a mechanical connection such as a bolted connection.

[0059] Figure 3 The arrangement of multiple battery cell assemblies 120 in the middle can be described as 3 2. Configuration. Figure 3 The arrangement of the multiple battery cell assemblies 120 disclosed herein is a non-limiting example and does not limit the technical concept of this disclosure in any way. Those skilled in the art will readily derive from the description herein the concept of M... Multiple battery cell assemblies 120 arranged in an N configuration (where M and N are integers of 2 or greater).

[0060] The battery pack 100 may also include a battery management system (BMS). The BMS can 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 at specific nodes within the plurality of battery cell assemblies 120 and measuring the temperature at predetermined locations within the battery pack 100. The battery pack 100 may include instruments for measuring the aforementioned voltage, current, and temperature.

[0061] Balancing the battery pack 100 is an operation to reduce deviations among the multiple battery cell assemblies 120. Controlling 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, thereby preventing a shortened lifespan for each of the multiple battery cell assemblies 120.

[0062] The battery pack 100 may also 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 prevents each of the multiple battery cell assemblies 120 from overheating by circulating air within the battery pack 100. The PRA can be configured to supply power from the high-voltage battery to an external load (e.g., a vehicle motor) or to interrupt power. In the event of an abnormal voltage such as a voltage surge, the PRA can protect the multiple battery cell assemblies 120 and the external load (e.g., the vehicle motor) by disconnecting the power supply to the external load (e.g., the vehicle motor). The additional electrical components may be inserted between the multiple battery cell assemblies 120 and the sidewall 115. The space between the battery cell assemblies 120 and the sidewall 115 may also be referred to as an electrical component mounting area.

[0063] The battery pack 100 may also include a plurality of interconnecting busbars configured to electrically connect a plurality of battery cell assemblies 120. The plurality of battery cell assemblies 120 may be connected in series among the plurality of busbars. Therefore, the battery pack 100 may be configured to output a high voltage to an external load (e.g., a vehicle motor).

[0064] The temperature regulator 200 can be located outside the battery pack 100. For example, the temperature regulator 200 can be located below the battery pack 100. The temperature regulator 200 can be located below the base plate 111. Unlike the example shown, the temperature regulator 200 can be located above the battery pack 100. The temperature regulator 200 can be located adjacent to the battery cell assembly 120. The temperature regulator 200 can be located between the battery pack 100 and the chassis 300. The temperature regulator 200 can be located between the base plate 111 and the chassis 300.

[0065] The temperature regulator 200 may contact the battery pack 100. The temperature regulator 200 may contact the base plate 111 of the battery pack 100. The temperature regulator 200 may be attached to a surface of the battery pack housing 110. For example, the temperature regulator 200 may be attached to a surface of the base plate 111.

[0066] Temperature regulator 200 may be spaced apart from battery cell assembly 120, with battery pack housing 110 inserted therebetween. Temperature regulator 200 may be spaced apart from battery cell assembly 120, with base plate 111 inserted therebetween. Temperature regulator 200 may be spaced apart from battery cell 121, with base plate 111 inserted between the two. Temperature regulator 200 may be adjacent to chassis 300.

[0067] Temperature regulator 200 may include a phase change material (PCM). A phase change material can refer to a material that undergoes a phase change while absorbing or releasing heat. For example, a phase change material may undergo a phase change by absorbing heat. Alternatively, a phase change material may undergo a phase change by releasing heat.

[0068] The chassis 300 can accommodate the battery pack 100 and the temperature regulator 200. The form of the chassis 300 is not limited to the illustrated form. The chassis 300 can refer to a support and connection... Figure 1 The structure of the main components of the vehicle 1000 shown. The chassis 300 may include... Figure 1 The external frame of vehicle 1000 shown.

[0069] Figure 4 This is a diagram illustrating heat transfer within a vehicle including a battery pack 100, according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 4 This is a diagram illustrating the heat transfer between the battery cell assembly 120 and the temperature regulator 200.

[0070] Figure 5 This is a diagram illustrating heat transfer within a vehicle including a battery pack 100, according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 5 This is a diagram illustrating the heat transfer between the battery cell assembly 120 and the temperature regulator 200.

[0071] The temperature regulator 200 can be based on negative feedback. Specifically, the temperature regulator 200 can be used to lower the temperature of the battery pack 100 when the temperature of the battery pack 100 rises. Conversely, the temperature regulator 200 can be used to raise the temperature of the battery pack 100 when the temperature of the battery pack 100 falls. For example, heat can be transferred between the battery cell assembly 120 and the temperature regulator 200 within the vehicle.

[0072] Reference Figure 4When the battery cell assembly 120 releases heat, the temperature regulator 200 can absorb the heat. For example, when the battery cell assembly 120 releases heat, the heat can be transferred to the temperature regulator 200 located adjacent to it. As described above, the temperature regulator 200 may include a phase change material, and the phase change material can absorb heat and undergo a phase change. For example, it can change from a solid phase to a liquid or gas phase, or from a liquid phase to a gas phase. This can result in a decrease in the temperature inside the battery pack 100.

[0073] For example, if the temperature of the battery pack 100 exceeds a reference temperature, the temperature regulator 200 can absorb heat. For instance, the temperature regulator 200 can absorb heat generated from the battery cell 121, thereby lowering the temperature of the battery pack 100. The reference temperature can be a preset value for the stability of the battery pack 100. Alternatively, the reference temperature may not be a specific value, but may represent the initial temperature of the battery pack 100.

[0074] Specifically, when a thermal runaway event occurs in battery cell 121, heat may be transferred to adjacent battery cells 121. Temperature regulator 200 can absorb this heat, thereby delaying heat transfer.

[0075] Reference Figure 5 The temperature regulator 200 can release heat and transfer it to the battery cell assembly 120. As described above, the temperature regulator 200 may include a phase change material, and the phase change material can release heat and undergo a phase change. For example, the phase change material can change from a gaseous phase to a liquid or solid phase, or from a liquid phase to a solid phase. This can cause the temperature of the battery pack 100 to rise.

[0076] For example, if the temperature of the battery pack 100 is lower than a reference temperature, the temperature regulator 200 can release heat. For example, the temperature regulator 200 can release heat to raise the temperature of the battery pack 100.

[0077] Reference Figures 1 to 5 The described vehicle 1000 may include a temperature regulator 200 comprising a phase change material located outside the battery pack 100. This allows the temperature of the battery pack 100 to be managed by absorbing or releasing heat via a phase change.

[0078] Furthermore, since the temperature regulator 200 is located outside the battery pack 100, there is no need to consider interference with components such as the battery cells 121 located inside the battery pack 100. This enhances the convenience and flexibility in the placement of the temperature regulator 200.

[0079] According to embodiments based on the technical concepts of this disclosure, a vehicle 1000 may be provided including a battery pack 100 with enhanced safety.

[0080] According to embodiments based on the technical concepts of this disclosure, a vehicle 1000 can be provided including a battery pack 100 with improved performance and reliability.

[0081] According to embodiments based on the technical concepts of this disclosure, a vehicle 1000 may be provided including a battery pack 100 with enhanced convenience.

[0082] (Second Implementation)

[0083] Figure 6 This is an enlarged cross-sectional view illustrating a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 6 Is with Figure 2 The enlarged cross-sectional view corresponding to region A in the diagram shows the temperature regulator 201 outside the battery pack 100.

[0084] Reference Figure 2 and Figure 6 The vehicle 1000 may include a temperature regulator 201 disposed outside the battery pack 100.

[0085] In some embodiments, the temperature regulator 201 may be a pad disposed outside the battery pack 100. Specifically, the temperature regulator 201 may be a pad on the outer wall of the battery pack housing 110 of the battery pack 100. For example, the temperature regulator 201 may be a pad below the base plate 111 of the battery pack 100. The temperature regulator 201 may include a pad housing 201C and a phase change material 201I. The phase change material 201I may be encapsulated by the pad housing 201C. The phase change material 201I may be surrounded by the pad housing 201C to prevent leakage to the outside of the pad housing 201C. Specifically, even if the phase of the phase change material 201I changes by absorbing or releasing heat, the phase change material 201I will not leak to the outside of the pad housing 201C.

[0086] For example, the pad housing 201C may include one selected from silicone, polyurethane, polypropylene, metal and stainless steel.

[0087] (Third implementation method)

[0088] Figure 7 This is an enlarged cross-sectional view illustrating a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 7 Is with Figure 2 The enlarged cross-sectional view corresponding to region A in the diagram shows the temperature regulator 202 outside the battery pack 100.

[0089] Reference Figure 2 and Figure 7 The vehicle 1000 may include a temperature regulator 202 disposed outside the battery pack 100.

[0090] In some embodiments, the temperature regulator 202 may be a coating. Specifically, the temperature regulator 202 may be a coating applied to the battery pack 100. For example, the temperature regulator 202 may be a coating applied to the outer wall of the battery pack housing 110 of the battery pack 100. Specifically, the temperature regulator 202 may be a coating applied to the chassis 300. For example, the temperature regulator 202 may be a coating applied to the inner wall of the chassis 300.

[0091] Specifically, the temperature regulator 202 may include a capsule 202C containing a phase change material and an adhesive 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, for example, spherical and includes an internal phase change material 202C_2 and a polymer shell 202C_1 surrounding the phase change material 202C_2. The capsule 202C may be mixed with the adhesive 202B and applied to the area to be coated, and the mixture may be dried to form a coating. For example, a mixture of capsule 202C and adhesive 202B may be applied to the outer wall of the battery pack housing 110 of the battery pack 100, and this mixture may be dried to form the temperature regulator 202. For example, a mixture of capsule 202C and adhesive 202B may be applied to the inner wall of the base 300, and this mixture may be dried to form the temperature regulator 202.

[0092] Phase change material 202C_2 can be encapsulated by a polymer shell 202C_1 and will not leak to the outside of capsule 202C. Specifically, even if the phase of phase change material 202C_2 changes by absorbing or releasing heat, phase change material 202C_2 will not leak to the outside of capsule 202C.

[0093] Capsule 202C may have a retaining force and / or adhesive force provided by adhesive 202B. For example, capsule 202C containing phase change material 202C_2 may be adhered to or fixed to the outer wall of battery pack housing 110 or to the inner wall of chassis 300 by adhesive 202B.

[0094] (Fourth Implementation)

[0095] Figure 8 This is an enlarged cross-sectional view illustrating a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 8 Is with Figure 2 The enlarged cross-sectional view corresponding to region A in the diagram shows the temperature regulator 203 outside the battery pack 100.

[0096] Reference Figure 2 and Figure 8The vehicle 1000 may include a temperature regulator 203 disposed outside the battery pack 100.

[0097] In some embodiments, the temperature regulator 203 may comprise a laminate of multiple polymer films. Specifically, the temperature regulator 203 may comprise a plurality of alternately laminated first films 203F1 and a plurality of second films 203F2. The first films 203F1 are polymer films and may be formed by alternately laminating second films 203F2 including a phase change material. The first films 203F1 may not include a phase change material. In other embodiments, the first films 203F1 may include a phase change material. The second films 203F2 may be sealed to prevent leakage of the phase change material.

[0098] (Fifth implementation method)

[0099] Figure 9 This is an enlarged cross-sectional view illustrating a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 9 Is with Figure 2 The enlarged cross-sectional view corresponding to region A in the diagram shows the temperature regulator 204 outside the battery pack 100.

[0100] Reference Figure 2 and Figure 9 The vehicle 1000 may include a temperature regulator 204 disposed outside the battery pack 100.

[0101] In some embodiments, the temperature regulator 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 to include a phase change material. For example, the inner layer 204IF may be a polymer film including a phase change material. The outer layer 204OF does not contain a phase change material and may be used as a layer for laminating the inner layer 204IF. The phase change material may be laminated between the outer layers 204OF, thereby preventing leakage of the phase change material.

[0102] (Sixth Implementation Method)

[0103] Figure 10 This is an enlarged cross-sectional view illustrating a partial configuration of a vehicle including a battery pack according to an exemplary embodiment based on the technical concept of this disclosure. Specifically, Figure 10 Is with Figure 2 The enlarged cross-sectional view corresponding to region A in the diagram shows the temperature regulator 205 outside the battery pack 100.

[0104] Reference Figure 2 and Figure 10 The vehicle 1000 may include a temperature regulator 205 disposed outside the battery pack 100.

[0105] In some embodiments, the temperature regulator 205 may include a composite layer 205C and a phase change material 205P dispersed within the composite layer 205C. For example, the composite layer 205C may include a high-viscosity grease or paste. The phase change material 205P may be in capsule form.

[0106] Specifically, a composite layer 205C containing dispersed phase change material 205P can be applied to the exterior of the battery pack 100 to form a temperature regulator 205. The phase change material 205P remains leak-free due to the composite layer 205C. Specifically, even if the phase of the phase change material 205P changes by absorbing or releasing heat, the phase change material 205P will not leak.

[0107] The present disclosure has been described in more detail above with reference to the accompanying drawings and embodiments. However, the configurations described in the drawings or the embodiments described herein are merely one embodiment of the present disclosure and do not represent all the technical concepts of the present disclosure. Therefore, it should be understood that various equivalents and modifications may exist at the time of filing this application.

Claims

1. A vehicle, the vehicle comprising: The battery pack includes multiple battery cell assemblies; A temperature regulator, wherein the temperature regulator is disposed outside the battery pack; as well as A chassis, wherein the chassis houses the battery pack and the temperature regulator, wherein The temperature regulator includes a phase change material.

2. The vehicle according to claim 1, wherein, The temperature regulator is based on negative feedback.

3. The vehicle according to claim 2, wherein, When the temperature of the battery pack exceeds the reference temperature, the temperature regulator absorbs heat.

4. The vehicle according to claim 2, wherein, When the temperature of the battery pack is lower than the reference temperature, the temperature regulator releases heat.

5. The vehicle according to claim 1, wherein, The battery pack includes a battery pack casing that houses the plurality of battery cell assemblies, and The temperature regulator is attached to one surface of the outer wall of the battery pack casing.

6. The vehicle according to claim 5, wherein, Each of the plurality of battery cell assemblies includes a plurality of battery cells, and The temperature regulator is spaced apart from the plurality of battery cells, and the battery pack casing is inserted between the temperature regulator and the plurality of battery cells.

7. The vehicle according to claim 1, wherein, The battery pack includes a battery pack housing that accommodates the plurality of battery cell assemblies, wherein The temperature regulator is a pad on the outer wall of the battery pack casing, wherein The pad includes a pad housing and the phase change material encapsulated by the pad housing.

8. The vehicle according to claim 7, wherein, The pad housing comprises one selected from silicone resin, polyurethane, polypropylene, metal, and stainless steel.

9. The vehicle according to claim 1, wherein, The temperature regulator includes a coating applied to the battery pack or the chassis, wherein The coating comprises a capsule and an adhesive mixed with the capsule, the capsule containing the phase change material.

10. The vehicle according to claim 1, wherein, The temperature regulator includes a polymer film that seals the phase change material.

11. The vehicle according to claim 1, wherein, The temperature regulator includes a thermally conductive composite layer and a phase change material dispersed within the thermally conductive composite layer.

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