CN-122000585-A - Battery module

Abstract

There is provided a battery module including a plurality of battery cells arranged such that major surfaces of the plurality of battery cells face each other along a first direction, and a cooling plate arranged between the plurality of battery cells, wherein the cooling plate includes a flow path through which cooling water flows in the cooling plate, and a vertical section of the cooling plate parallel to the first direction includes a pattern of one or more types of polygonal combinations.

Inventors

• JIN XIANGYUN

Assignees

• 三星SDI株式会社

Dates

Publication Date

20260508

Application Date

20250928

Priority Date

20241107

Claims (20)

1. 1. A battery module, the battery module comprising: A plurality of battery cells arranged such that main surfaces of the plurality of battery cells face each other along a first direction, and A cooling plate disposed between the plurality of battery cells, Wherein the cooling plate includes a flow path through which cooling water flows in the cooling plate, and A vertical section of the cooling plate parallel to the first direction includes a pattern of one or more types of polygonal combinations.
2. 2. The battery module according to claim 1, wherein, The flow path includes a plurality of flow paths that are spaced apart from each other in a height direction of the cooling plate and are arranged in parallel with each other.
3. 3. The battery module according to claim 2, wherein, At least some of the plurality of flow paths are connected to each other.
4. 4. The battery module according to claim 1, wherein, The pattern includes at least one of a honeycomb structure and an auxetic structure.
5. 5. The battery module according to claim 1, wherein, The pattern has a negative poisson's ratio.
6. 6. The battery module according to claim 1, wherein, The plurality of battery cells are arranged in a second direction perpendicular to the first direction on a plane to form a cell unit, and The monomer units are arranged parallel to each other along the first direction.
7. 7. The battery module according to claim 6, wherein, The cooling plate extends along the second direction to correspond to an entire area of the monomer unit adjacent to the cooling plate.
8. 8. The battery module according to claim 1, wherein, The cooling plate includes a hollow cavity, and the flow path is disposed inside the hollow cavity.
9. 9. The battery module according to claim 8, wherein, The flow paths have a honeycomb structure in cross section, and the cooling plates have an auxetic structure in cross section between the flow paths.
10. 10. The battery module according to claim 1, wherein, The height of the cooling plate is equal to or greater than the height of the battery cells.
11. 11. A battery module, the battery module comprising: a plurality of battery cells arranged along a first direction and a second direction perpendicular to the first direction, and A cooling plate positioned between the plurality of battery cells, wherein, The plurality of battery cells are arranged such that main surfaces of the plurality of battery cells face each other in the first direction, and among the plurality of battery cells, the battery cells arranged in the second direction define a cell unit, and The cooling plates are located between the monomer units, and the cooling plates include flow paths through which cooling water flows in the cooling plates, wherein, A vertical section of the cooling plate perpendicular to the second direction includes a pattern of one or more types of polygonal combinations.
12. 12. The battery module of claim 11, wherein, The flow path includes a plurality of flow paths that are spaced apart from each other in a height direction of the cooling plate and are arranged in parallel with each other.
13. 13. The battery module of claim 12, wherein, At least some of the plurality of flow paths are connected to each other.
14. 14. The battery module of claim 11, wherein, The pattern includes at least one of a honeycomb structure and an auxetic structure.
15. 15. The battery module of claim 11, wherein, The pattern has a negative poisson's ratio.
16. 16. The battery module of claim 11, wherein, The monomer units are arranged parallel to each other along the first direction.
17. 17. The battery module of claim 16, wherein, The cooling plate extends along the second direction to correspond to an entire area of the monomer unit adjacent to the cooling plate.
18. 18. The battery module of claim 11, wherein, The cooling plate includes a hollow cavity, and the flow path is disposed inside the hollow cavity.
19. 19. The battery module of claim 18, wherein, The flow paths have a honeycomb structure in cross section, and the cooling plates have an auxetic structure in cross section between the flow paths.
20. 20. The battery module of claim 19, wherein, The height of the cooling plate is equal to or greater than the height of the battery cells.

Description

Battery module Technical Field The present disclosure relates to a battery module. Background Unlike a primary battery that is not rechargeable, a secondary battery is a battery that can be charged and discharged. A low-capacity secondary battery is used for small-sized portable electronic devices such as smart phones, function phones, laptop computers, digital cameras, and video cameras, while a large-capacity secondary battery is widely used as a motor driving power source in hybrid vehicles, electric vehicles, and the like, and as an electric power storage battery. These secondary batteries include an electrode assembly including a positive electrode and a negative electrode, a case for accommodating the electrode assembly, and an electrode terminal coupled to the electrode assembly. The above information disclosed in the background of the invention is only for improving understanding of the background of the present disclosure and therefore may include information that does not constitute prior art. Disclosure of Invention An object of the present disclosure is to provide a battery module having improved inter-cell strength and impact absorption. An object of the present disclosure is to provide a battery module having improved cooling efficiency. However, technical problems to be solved by the present disclosure are not limited to the above-described problems, and other problems not mentioned can be clearly understood by those skilled in the art from the description of the invention described below. According to an aspect of the present disclosure, a battery module is disclosed, which includes a plurality of battery cells arranged such that major surfaces of the plurality of battery cells face each other along a first direction, and a cooling plate arranged between the plurality of battery cells, wherein the cooling plate includes a flow path through which cooling water flows in the cooling plate, and a vertical section of the cooling plate parallel to the first direction includes a pattern of one or more types of polygonal combinations. According to an embodiment, the flow path may include a plurality of flow paths that are spaced apart from each other in the height direction of the cooling plate and are arranged in parallel with each other. According to an embodiment, at least some of the plurality of flow paths may be combined with each other. According to an embodiment, the pattern may comprise at least one of a honeycomb structure and an auxetic structure. According to an embodiment, the pattern may have a negative poisson's ratio. According to an embodiment, the plurality of battery cells are arranged in a second direction perpendicular to the first direction on a plane to form the cell unit, and the cell units may be arranged parallel to each other in the first direction. According to an embodiment, the cooling plate may extend along the second direction to correspond to the entire area of the monomer unit adjacent thereto. According to an embodiment, the cooling plate may comprise a hollow cavity, and the flow path may be located inside the hollow cavity. According to an embodiment, the cross section of the flow paths may have a honeycomb structure, and the cross section of the cooling plate between the flow paths may have an auxetic structure. According to an embodiment, the height of the cooling plate may be equal to or greater than the height of the battery cells. According to an aspect of the present disclosure, a battery module is disclosed, the battery module including a plurality of battery cells arranged along a first direction and a second direction perpendicular to the first direction, and a cooling plate between the plurality of battery cells, wherein the plurality of battery cells are arranged such that major surfaces thereof face each other along the first direction, and the battery cells arranged along the second direction define a cell unit among the plurality of battery cells, the cooling plate is located between the cell units, the cooling plate includes a flow path through which cooling water flows in the cooling plate, and a vertical section of the cooling plate perpendicular to the second direction includes a pattern of one or more types of polygonal combinations. According to an embodiment, the flow path may include a plurality of flow paths, which may be spaced apart from each other in the height direction of the cooling plate and arranged in parallel with each other. According to an embodiment, at least some of the plurality of flow paths may be combined with each other. According to an embodiment, the pattern may comprise at least one of a honeycomb structure and an auxetic structure. According to an embodiment, the pattern may have a negative poisson's ratio. According to an embodiment, the monomer units may be arranged parallel to each other along the first direction. According to an embodiment, the cooling plate may extend along the second direction to correspond to t