CN-121986401-A - Vehicle comprising a battery pack

Abstract

According to an exemplary embodiment of the present invention, a vehicle is provided. The vehicle includes 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.

Inventors

• JIN CHENHE
• LI ZAIXUAN

Assignees

• 株式会社LG新能源

Dates

Publication Date

20260505

Application Date

20250708

Priority Date

20240716

Claims (11)

1. 1. A vehicle, the vehicle comprising: A battery pack including a plurality of battery cell assemblies; a temperature regulator provided outside the battery pack, and A chassis accommodating the battery pack and the temperature regulator, wherein The temperature regulator includes a phase change material.
2. 2. The vehicle according to claim 1, wherein, The temperature regulator is based on negative feedback.
3. 3. The vehicle according to claim 2, wherein, The temperature regulator absorbs heat when the temperature of the battery pack exceeds a reference temperature.
4. 4. The vehicle according to claim 2, wherein, The temperature regulator releases heat when the temperature of the battery pack is lower than a reference temperature.
5. 5. The vehicle according to claim 1, wherein, The battery pack includes a battery pack housing accommodating the plurality of battery cell assemblies, and The temperature regulator is attached to one surface of an outer wall of the battery pack case.
6. 6. The vehicle according to claim 5, wherein, Each of the plurality of battery cell assemblies includes a plurality of battery cells, an The temperature regulator is spaced apart from the plurality of battery cells, and the battery pack housing is interposed between the temperature regulator and the plurality of battery cells.
7. 7. The vehicle according to claim 1, wherein, The battery pack includes a battery pack housing containing the plurality of battery cell assemblies, wherein The temperature regulator is a pad on the outer wall of the battery pack case, wherein The pad includes a pad housing and the phase change material encapsulated by the pad housing.
8. 8. The vehicle according to claim 7, wherein, The pad housing includes one selected from the group consisting of silicone, polyurethane, polypropylene, metal, and stainless steel.
9. 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 includes a capsule including the phase change material and a binder mixed with the capsule.
10. 10. The vehicle according to claim 1, wherein, The temperature regulator includes a polymer film that encapsulates the phase change material.
11. 11. The vehicle according to claim 1, wherein, The temperature regulator comprises a heat-conducting composite layer and phase change materials dispersed in the heat-conducting composite layer.

Description

Vehicle comprising a battery pack Technical Field The present disclosure relates to a vehicle. More specifically, the present disclosure relates to a vehicle including a battery pack. The present application claims the benefit of korean patent application No. 10-2024-0093384 filed on 7/6 of 2024, the disclosure of which is incorporated herein by reference. Background Unlike a primary battery, a secondary battery may be charged and discharged a plurality of times. Secondary batteries are widely used as energy sources for various wireless devices such as cellular phones, notebook computers, and wireless cleaners. Recently, the manufacturing cost per unit capacity of the secondary battery has been significantly reduced due to the increase in energy density and economies of scale. As the cruising range of BEV (battery electric vehicle) has risen to a level comparable to that of fuel vehicles, the main application of secondary batteries is turning traffic from mobile devices. The trend in the technological development of secondary batteries for transportation is focused on improving energy density and safety. The safety of the secondary battery for the travel of traffic is important because it directly affects the life of passengers. Secondary battery safety may be achieved by mechanical robustness, reliable electrical insulation, and delayed heat transfer during thermal runaway events. Disclosure of Invention Technical problem The technical problem addressed by the technical concepts of the present disclosure is to provide a vehicle with enhanced safety. The technical problem addressed by the technical concepts of the present disclosure is to provide a vehicle with improved performance and reliability. The technical problem to be solved by the technical concept of the present disclosure is to provide a vehicle with enhanced convenience. Technical proposal According to an exemplary embodiment of the present disclosure for solving the above-described problems, there is provided a vehicle. The vehicle includes a battery pack including 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. The temperature regulator may be negative feedback based. The temperature regulator may absorb heat when the temperature of the battery pack exceeds the reference temperature. The temperature regulator may release heat when the temperature of the battery pack is lower than the reference temperature. The battery pack includes a battery pack case accommodating a plurality of battery cell assemblies, and the temperature regulator may be attached to one surface of an outer wall of the battery pack case. Each of the plurality of battery cell assemblies includes a plurality of battery cells, and the thermostat may be spaced apart from the plurality of battery cells with the battery pack housing interposed between the thermostat and the plurality of battery cells. The battery includes a battery housing that houses a plurality of battery cell assemblies, wherein the temperature regulator is a mat on an outer wall of the battery housing, wherein the mat may include a mat housing and a phase change material encapsulated by the mat housing. The pad housing may include one selected from the group consisting of silicone, polyurethane, polypropylene, metal, and stainless steel. The temperature regulator includes a coating applied to the battery pack or chassis, wherein the coating may include a capsule containing a phase change material and an adhesive mixed with the capsule. The temperature regulator may include a polymer film encapsulating the phase change material. The temperature regulator may include a thermally conductive composite layer and a phase change material dispersed within the thermally conductive composite layer. Advantageous effects According to an exemplary embodiment of the present disclosure, a vehicle may include a temperature regulator provided outside the battery pack, thereby being able to manage the temperature of the battery pack by absorbing heat or releasing heat. According to an exemplary embodiment of the present disclosure, a vehicle with enhanced safety may be provided. According to exemplary embodiments of the present disclosure, a vehicle with improved performance and reliability may be provided. According to the embodiments based on the technical concept of the present disclosure, a vehicle having enhanced convenience may be provided. Effects that can be obtained from the exemplary embodiments of the present disclosure are not limited to the above-described effects, and other effects not mentioned may be clearly derived and understood from the following description by those of ordinary skill in the art to which the exemplary embodiments of the present disclosure belong. In other words, the unexpected effect of practicing the ex