KR-20260064244-A - Battery Assembly

KR20260064244AKR 20260064244 AKR20260064244 AKR 20260064244AKR-20260064244-A

Abstract

The present disclosure relates to a battery assembly comprising a plurality of cylindrical battery cells, a receiving member forming a placement space for accommodating the plurality of battery cells, a receiving space accommodating the plurality of battery cells and the receiving member, a receiving bottom surface forming the bottom surface of the receiving space and including a communication hole, a venting space disposed between the receiving bottom surface, and a receiving case including a communication hole formed in the receiving bottom surface to communicate between the receiving space and the venting space, wherein the receiving member comprises a support member forming the bottom surface of the receiving member and supported by the receiving bottom surface, a curved surface extending from the support member toward the plurality of battery cells and formed as a curved surface corresponding to a part of the outer circumference of each of the plurality of battery cells and facing the plurality of battery cells, and a through hole penetrating the support member at a position corresponding to the communication hole.

Inventors

곽승일
전해룡

Assignees

에스케이온 주식회사

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (18)

Multiple cylindrical battery cells; A receiving member forming a placement space for accommodating the plurality of battery cells; and A receiving case comprising: a receiving space for receiving the plurality of battery cells and the receiving member, a receiving bottom surface forming the bottom surface of the receiving space and including a communication hole, a venting space disposed between the receiving bottom surface, and a communication hole formed in the receiving bottom surface to communicate between the receiving space and the venting space; The above receiving member is A support member that forms the bottom surface of the above-mentioned receiving member and is supported by the above-mentioned bottom surface; A curved portion extending from the support portion toward the plurality of battery cells, formed as a curved surface corresponding to a part of the outer circumference of each of the plurality of battery cells and facing the plurality of battery cells; and A battery assembly comprising a through hole penetrating the support member at a position corresponding to the above communication hole.
In paragraph 1, The above curved surface is a battery assembly having a wavy shape.
In paragraph 2, A battery assembly further comprising a heat dissipation portion between the above-mentioned curved portion and the above-mentioned plurality of battery cells.
In paragraph 1, The above curved portion and the above support portion are an insulating coated battery assembly.
In paragraph 1, The above curved surface It includes a first body part and a second body part arranged with the above plurality of battery cells in between, The above support A first bottom portion extending from one end of the first body portion toward the second body portion; A first recessed portion in which a part of one corner of the first bottom portion is recessed in a direction away from the second body portion; A second bottom portion extending toward the first body portion from one end of the second body portion; and A second recessed portion, wherein a portion of one corner of the second bottom portion is recessed in a direction away from the first body portion at a position corresponding to the first recessed portion; A battery assembly in which, when the first bottom portion and the second bottom portion are connected, the first recess and the second recess are connected to each other to form the through hole.
In paragraph 5, The first body part, the first bottom part, the second body part and the second bottom part A battery assembly formed of the same material.
In paragraph 5, The first body part, the first bottom part, the second body part and the second bottom part A battery assembly formed of different materials.
In paragraph 1, The above curved surface It includes a first body part and a second body part arranged with the above plurality of battery cells in between, The above support A battery assembly extending from one end of the first body part and connected to one end of the second body part.
In paragraph 1, The above through hole and the above communication hole are each provided in multiple numbers, and A battery assembly in which the plurality of through holes are arranged to correspond one-to-one with the plurality of communication holes.
In Paragraph 9, The virtual central axis of any one of the aforementioned plurality of battery cells is A battery assembly passing through a through hole corresponding to any one of the above-mentioned battery cells.
In paragraph 1, The above through hole extends along the aligned direction of the plurality of battery cells, and A battery assembly overlapping with the above communication hole.
In paragraph 1, A battery assembly in which the above-mentioned curved portion is provided in a zigzag shape, and the above-mentioned arrangement space is separated into multiple spaces so that the plurality of battery cells are each accommodated with the above-mentioned curved portion in between.
In Paragraph 12, The above receiving member is A battery assembly further comprising a side portion extending from the perimeter of the support portion and surrounding at least a portion of the plurality of battery cells.
In paragraph 1, A battery assembly further comprising a cooling channel through which a refrigerant for cooling the plurality of battery cells travels, disposed on one of the two sides of the above-mentioned receiving bottom surface.
In paragraph 1, When gas is generated in any one of the aforementioned plurality of battery cells, At least part of the above gas A battery assembly that moves to the venting space through the above through hole and the above communication hole.
In paragraph 15, The above acceptance case is A battery assembly including an outlet communicating with the venting space and the outside.
In paragraph 15, The above acceptance case is A battery assembly including a partition wall that partitions the above-mentioned venting space.
A plurality of laminated bodies comprising a support member forming the bottom surface of a placement space accommodating a plurality of battery cells, and a curved surface member extending from the support member toward the plurality of battery cells and formed in a wavy shape corresponding to a part of the outer circumference of each of the plurality of battery cells and facing the plurality of battery cells; A busbar electrically connected to the plurality of battery cells above; A receiving case forming a receiving space for accommodating the plurality of stacked bodies; and A battery assembly comprising a partitioning section that partitions the above-mentioned receiving space.

Description

Battery Assembly The present disclosure relates to a battery assembly. More specifically, it relates to a battery assembly with improved thermal stability and manufacturing efficiency. In a battery manufacturing process that manufactures a battery pack using cylindrical battery cells, individual cylindrical battery cells are installed inside the battery pack instead of grouping multiple cylindrical battery cells. Consequently, the manufacturing process of the battery pack is complex and the manufacturing efficiency of the battery pack is low, so it is necessary to improve this. In addition, conventional battery packs manufactured using cylindrical battery cells have a problem in that they cannot effectively cool the cylindrical battery cells because they cool the cells only through the bottom of the cylindrical battery cells. FIG. 1 is an example of a battery assembly according to the present disclosure. FIG. 2 is an exploded view of an example of a laminate according to the present disclosure. FIG. 3a is a top view of an example of a receiving member according to the present disclosure. FIG. 3b is a top view of another example of a receiving member according to the present disclosure. FIG. 4a is a side view of an example of a laminate according to the present disclosure. FIG. 4b is a side view of another example of a laminate according to the present disclosure. FIG. 4c is a side view of yet another example of a laminate according to the present disclosure. FIG. 5a is a perspective view of another example of a receiving member according to the present disclosure. FIG. 5b is a top view of another example of a laminate according to the present disclosure. FIG. 6a is a perspective view of another example of a receiving member according to the present disclosure. FIG. 6b is a top view of the receiving member of FIG. 6a. FIG. 7 illustrates a cross-section of a battery assembly according to the present disclosure. Preferred embodiments of the present disclosure are described in detail below with reference to the attached drawings. The configuration of the device or the control method described below are intended only to explain the embodiments of the present disclosure and are not intended to limit the scope of the rights of the present disclosure, and reference numerals used identically throughout the specification indicate identical components. Specific terms used in this specification are for convenience of explanation only and are not intended to limit the exemplified embodiments. In this specification, battery, secondary battery, and cell all refer to a battery cell capable of charging and discharging. In this specification, a battery assembly may refer to a battery module or battery pack including battery cells, or an energy storage device. FIG. 1 is an example of a battery assembly according to the present disclosure. A battery assembly (1000) according to the present disclosure may include a stacking assembly (500) comprising a plurality of cylindrical battery cells (100) and a receiving member (200) for receiving the plurality of battery cells (100), and a receiving case (300) forming a receiving space (350) for receiving the stacking assembly (500). The above laminate (500) may include a plurality of battery cells (100) and a receiving member (200) that forms a placement space (250, see FIG. 2) for accommodating the plurality of battery cells (100). In the above-described laminate (500), the plurality of battery cells (100) can be arranged along a preset alignment direction. The above receiving case (300) may include a receiving body (390) with one side open and a receiving cover (310) coupled to the receiving body (390) to cover the one side open. The above-described receiving case (300) may further include a partitioning section (330) that partitions the receiving space (350). The partitioning section (330) may include a first frame (331) that partitions the receiving space (350) in a direction parallel to the alignment direction, and a second frame (335) that partitions the receiving space (350) in a direction perpendicular to the alignment direction. The above-described receiving case (300) may further include an electrical space (340) formed separately from the receiving space (350). The battery assembly (1000) according to the present disclosure may accommodate a control unit (345) for thermally and electrically managing the plurality of battery cells (100) in the electrical space (340). The control unit (345) may be referred to as a Battery Management System (BMS). Additionally, the battery assembly (1000) according to the present disclosure may further include a connection unit (349) that electrically connects the plurality of battery cells (100) to the outside. In this specification, the direction in which the control unit (345) or the connection unit (349) is located is referred to as the front (F) and the opposite direction as the rear (R) for convenience, but this is merely an example, and