KR-20260065625-A - Batteries and electric devices

Abstract

As a battery (1001) and an electric device, the battery (1001) comprises: a first frame (2021) located at both ends in the width direction, each first frame (2021) extending along the length direction of the case (200); a plurality of battery cells (100) mounted on the case (200); the length direction of each battery cell (100) is parallel to the length direction of the case (200), and the battery cell (100) adjacent to the first frame (2021) is in contact with the first frame (2021); and a mounting beam (23) is installed on each first frame (2021). The longitudinal direction of the battery cell (100) is parallel to the longitudinal direction of the case (200), and the first frame (2021) is positioned so as to be in contact with an adjacent battery cell (100), and when the first frame (2021) is located at the end of the case (200) in the width direction, the first frame (2021) is in contact with the large surface of the adjacent battery cell (100); a mounting beam (23) is installed on the first frame (2021) to facilitate mounting and use of the battery (1001), and a restraining force is provided through the mounting beam (23) to resist expansion and deformation of the battery cell (100).

Inventors

• 위안, 성강
• 왕, 쩡중
• 왕, 펑
• 지아, 쥔
• 뉴, 젠신

Assignees

• 컨템포러리 엠퍼렉스 테크놀로지 씨오., 리미티드

Dates

Publication Date

20260508

Application Date

20240103

Claims (20)

1. As a battery, this is: A case comprising first frames located at both ends in the width direction, wherein each of the first frames extends along the length direction of the case; It includes a plurality of battery cells mounted in the above case; The longitudinal direction of each of the above-mentioned battery cells is parallel to the longitudinal direction of the case, and the battery cells adjacent to the first frame are in contact with the first frame; A battery characterized in that a mounting beam is installed in each of the first frames.
2. A battery according to claim 1, wherein each end of the battery cell along the height direction is provided with a first cross-section and a second cross-section, and the second cross-section is adhesively connected to the case.
3. A battery according to paragraph 2, characterized in that the second cross section is fixedly connected to the case through a structural adhesive.
4. In paragraph 3, the battery also: A battery characterized by including an adhesive-preventing structure installed to surround the edge of each of the second cross sections and used to block structural adhesive in the second cross section from flowing between adjacent battery cells.
5. A battery according to claim 4, wherein the adhesive prevention structure comprises a stiffener installed on the case and/or the second cross section.
6. A battery according to any one of claims 1 to 5, wherein the case is equipped with a thermal management component, and the thermal management component is thermally conductively connected to the battery cell.
7. A battery according to claim 6, wherein one end of each battery cell along the height direction has a first cross-section, and an electrode terminal is installed on the first cross-section; wherein the thermal management component includes a first thermal management component, and each of the first cross-sections is bonded and fixed to the first thermal management component through a thermally conductive structural adhesive, and a first opening is opened in the first thermal management component to expose each of the electrode terminals.
8. In paragraph 7, the above battery also: It includes an adhesive blocking structure installed to surround the edge of each of the first cross-sections; A battery characterized in that the adhesive barrier structure is installed between the battery cell and the first thermal management component.
9. A battery according to claim 8, wherein the adhesive blocking structure is also installed to surround each of the first openings.
10. A battery according to claim 8 or 9, wherein a pressure reducing mechanism is installed in the first cross section, an exhaust mechanism is installed in the first thermal management component opposite to each of the pressure reducing mechanisms, and the adhesive blocking structure is installed to surround each of the exhaust mechanisms.
11. A battery according to claim 10, wherein the exhaust mechanism is a second opening installed in the first thermal management component, and an insulating layer is installed on the inner wall of the second opening.
12. A battery according to any one of claims 8 to 11, wherein the adhesive blocking structure comprises the first thermal management component and/or a rib installed on the first cross section.
13. A battery characterized in that, in any one of claims 7 to 12, an insulating layer is installed on the opposing sides of the first thermal management component and on the inner wall of the first opening.
14. A battery according to any one of claims 6 to 13, wherein one end of the battery cell along the height direction has a second cross-section, the thermal management component includes a second thermal management component, the second thermal management component is installed in the case, and each of the second cross-sections is connected to the second thermal management component.
15. A battery according to any one of claims 6 to 14, wherein a plurality of the battery cells are arranged in an array layout, and the thermal management component includes a third thermal management component used to be suitably placed between two adjacent columns or two adjacent rows of the battery cells, wherein the battery cells include a plurality of surfaces, and the third thermal management component is heat exchange connected with the surface having the largest area among the plurality of surfaces.
16. In paragraph 15, The third thermal management component is installed between the battery cells of any two adjacent columns or any two adjacent rows; Alternatively, the third thermal management component is installed on one side of the battery cell in each column, and the battery cells in two columns are spaced apart between two adjacent third thermal management components; Alternatively, a battery characterized in that a third thermal management component is installed on one side of the battery cell of each row, and the battery cells of two rows are spaced apart between two adjacent third thermal management components.
17. A battery according to claim 15 or 16, wherein the battery also comprises a distribution pipe connecting one end of the flow path of each of the third thermal management components and a recirculation pipe connecting the other end of the flow path of each of the third thermal management components.
18. A battery according to claim 17, characterized in that the distribution pipe and the recirculation pipe are located at the same end of the third thermal management component.
19. A battery according to claim 18, wherein the third thermal management component comprises two groups of fluid paths, a current collector is installed at one end of the third thermal management component, and the current collector is connected to the two groups of fluid paths.
20. A battery according to claim 19, wherein a reinforcing beam is installed in the case, the reinforcing beam is installed extending along a longitudinal direction perpendicular to the third thermal management component, the reinforcing beam is installed with a storage groove used to accommodate the current collector member, and the current collector member is disposed in the corresponding storage groove.

Description

Batteries and electric devices This application relates to the field of battery technology, and more specifically to batteries and electric devices. Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles are establishing themselves as a crucial component of this development thanks to their advantages in energy saving and environmental protection. In the case of electric vehicles, battery technology is a factor that significantly influences their advancement. However, since battery cells undergo expansion and deformation during charging and discharging, leading to failure, effectively resisting this expansion and deformation is a problem that must be solved in battery production. The purpose of the embodiments of the present application is to provide a battery and an electric device for solving the problem of how to resist expansion and deformation of a battery cell in the related technology. In a first aspect, an embodiment of the present application provides a battery, which: A case comprising first frames located at both ends in the width direction, each first frame extending along the length direction of the case; It includes a plurality of battery cells mounted in a case; The longitudinal direction of each battery cell is parallel to the longitudinal direction of the case, and the battery cell adjacent to the first frame is in contact with the first frame; A mounting beam is installed on each first frame. In the technical solution of the embodiment of the present application, the longitudinal direction of the battery cell is parallel to the longitudinal direction of the case, and the first frame is positioned to abut an adjacent battery cell, so that when the first frame is located at the end of the width direction of the case, the first frame abuts the large surface of the adjacent battery cell; a mounting beam is installed on the first frame to facilitate mounting and use of the battery, and a restraining force is provided through the mounting beam to resist expansion and deformation of the battery cell. In some embodiments, a first cross section and a second cross section are provided at each end of the battery cell along the height direction, and the second cross section is adhesively connected to the case. By bonding the second cross-section to the case and fixing the battery cell, it is easy for the case to stably support the battery cell. In some embodiments, the second section is fixedly connected to the case through a structural adhesive. The second cross-section of the battery cell is fixedly connected to the case through a structural adhesive, and multiple battery cells are connected to form a single unit, thereby improving the overall structural strength of the battery, effectively resisting expansion and deformation of the battery cell, reducing the risk of failure of the battery cell due to expansion and deformation, and improving the overall structural strength of the battery. In some embodiments, the battery also: It includes an adhesive-prevention structure installed to surround the edges of each second section and used to block structural adhesive in the second section from flowing between adjacent battery cells. By installing an adhesive prevention structure and ensuring that the adhesive prevention structure surrounds the edges of each second cross section, the structural adhesive is prevented from overflowing to the sides of the battery cell, thereby reducing the risk of the battery cell's lifespan being reduced due to the presence of cured structural adhesive between adjacent battery cells, which affects the normal charging and discharging expansion and deformation of the battery cell. In some embodiments, the anti-adhesion structure includes a stiffener installed on the case and/or the second section. The adhesive prevention structure uses a stiffener, making the structure simple and easy to process and manufacture. When the case is connected to the second end, the adhesive prevention structure can be positioned between the case and the second end, making assembly easy. In some embodiments, the case is equipped with a thermal management component, and the thermal management component is thermally connected to the battery cell. By installing thermal management components and connecting them thermally to the battery cells, the battery cells are heated or cooled through the thermal management components, thereby improving a stable temperature environment for the battery cells and facilitating stable charging and discharging of the battery cells. In some embodiments, one end of each battery cell along the height direction has a first cross section, and an electrode terminal is installed on the first cross section; a thermal management component includes a first thermal management component, and each first cross section is bonded to the first thermal management component through a thermally conductive structur