CN219591460U - Battery cell, battery cell module and battery pack - Google Patents
Battery cell, battery cell module and battery pack Download PDFInfo
- Publication number
- CN219591460U CN219591460U CN202320623290.XU CN202320623290U CN219591460U CN 219591460 U CN219591460 U CN 219591460U CN 202320623290 U CN202320623290 U CN 202320623290U CN 219591460 U CN219591460 U CN 219591460U
- Authority
- CN
- China
- Prior art keywords
- battery cell
- battery
- liquid cooling
- cell
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model provides a battery cell, a battery cell module and a battery pack, which comprise a battery cell monomer, wherein the battery cell monomer is of a cuboid structure; the heat conducting sheet is arranged on a radiating surface formed by the periphery of the length edge of the battery cell unit and the width edge of the battery cell unit; the ratio of the area of the radiating surface to the thickness of the battery cell monomer is D, and D is 2500 or more and 4000 or less. According to the battery cell, the battery cell module and the battery pack disclosed by the utility model, the heat dissipation performance of the battery cell can be improved.
Description
Technical Field
The utility model relates to the technical field of power batteries, in particular to a battery cell, a battery cell module and a battery pack.
Background
The power battery is widely applied to various electric automobiles and energy storage equipment. The power battery pack consists of a plurality of battery core modules, and each battery core module consists of a plurality of battery core monomers. At present, the problem of overheating easily occurs when the battery cell continuously works, resulting in the reduction of the working performance of the battery pack. Therefore, the heat dissipation performance of the battery cell unit needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a battery cell, a battery cell module and a battery pack, which can improve the heat dissipation performance of the battery cell.
To achieve the above and other related objects, the present utility model provides a battery cell comprising:
the battery cell unit is of a cuboid structure; and
the heat conducting sheet is arranged on a radiating surface formed by the periphery of the length edge of the battery cell unit and the width edge of the battery cell unit;
the ratio of the area of the radiating surface to the thickness of the battery cell monomer is D, and D is 2500 or more and 4000 or less.
In an embodiment of the present utility model, a liquid cooling plate is disposed on a plane where a length side of the battery cell unit and a thickness side of the battery cell unit are located.
In an embodiment of the utility model, one side of the heat conducting fin extends out of the heat dissipating surface and is attached to the liquid cooling plate.
In an embodiment of the present utility model, the cell unit includes:
the battery cell shell is internally provided with a core body; and
and the explosion-proof valve is arranged at one end of the battery cell shell.
In an embodiment of the utility model, the explosion-proof valve is located on the end face where the width side and the thickness side of the battery cell casing are located.
The utility model also provides a battery cell module, which comprises:
the plurality of electric cores are sequentially arranged along the thickness direction of the plurality of electric cores; and
the liquid cooling plates are covered on planes where the length edges and the thickness edges of the plurality of electric cores are located;
wherein, the electric core includes:
the battery cell unit is of a cuboid structure; and
the heat conducting sheet is arranged on a radiating surface formed by the periphery of the length edge of the battery cell unit and the width edge of the battery cell unit;
the ratio of the area of the radiating surface to the thickness of the battery cell monomer is D, and D is 2500 or more and 4000 or less.
In an embodiment of the present utility model, the heat conducting fin is disposed between any two adjacent cells.
In an embodiment of the utility model, all the heat conducting fins extend between adjacent electric cores and are attached to the liquid cooling plate.
In an embodiment of the utility model, a cooling liquid pipeline is arranged inside the liquid cooling plate.
The utility model also provides a battery pack which comprises a plurality of the battery cell modules.
As described above, the utility model provides a battery cell, a battery cell module and a battery pack, which can improve the heat dissipation performance of the battery cell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a cell according to the present utility model.
Fig. 2 is a schematic structural view of a set of cells and a thermally conductive sheet according to the present utility model.
Fig. 3 is a schematic structural diagram of a battery cell module according to the present utility model.
Description of element numbers:
10. a cell unit; 11. an explosion-proof valve;
20. a heat conductive sheet;
30. a liquid cooling plate;
40. and a battery cell module.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Please refer to fig. 1-3. It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
Referring to fig. 1, fig. 1 is a schematic diagram of a battery cell according to an embodiment of the utility model. The battery core can be applied to power batteries of various electric automobiles or energy storage equipment to provide electric energy. The battery cell may include a battery cell 10 and a thermally conductive sheet 20. The length side of the battery cell unit 10 and the width side of the battery cell unit 10 can form a radiating surface, and the working heat of the battery cell unit 10 can be transmitted out through the radiating surface. The ratio of the area of the heat dissipation surface to the thickness of the battery cell unit 10 can be set to D, and the value of D can be set in the range of 2500 or more and 4000 or less, so as to optimize the area of the heat dissipation surface and improve the heat dissipation performance of the battery cell unit 10. The heat conducting fin 20 may cover the heat dissipating surface to further conduct out the heat transferred from the heat dissipating surface, thereby improving the heat dissipating effect.
Referring to fig. 2, in an embodiment of the present utility model, the cell 10 may have a rectangular parallelepiped structure. The side of the cell 10 parallel to the longitudinal direction may be set as a longitudinal side L1, the side of the cell 10 parallel to the width direction may be set as a width side L2, and the side of the cell 10 parallel to the thickness direction may be set as a thickness side L3. Further, the length of the length side L1 is longer than the length of the width side L2, and the length of the width side L2 is longer than the length of the thickness side L3. Specifically, in order to optimize the heat dissipation performance of the battery cell, the surface having the largest surface area in the battery cell 10 may be set as a heat dissipation surface, that is, a surface surrounded by a length side and a width side may be set as a heat dissipation surface a, so that the heat dissipation effect is improved by increasing the heat dissipation area. Two length sides and two width sides of one side of the battery cell unit 10 can enclose a heat dissipation surface A, and two length sides and two width sides of the other side of the battery cell unit 10 can also enclose a heat dissipation surface A. The heat of the battery cell 10 during operation can be transferred out through the heat dissipation surfaces A at the two sides. The ratio of the area of the heat dissipation surface a to the thickness of the battery cell unit 10 may be set to D, and the value of D may be set in the range of 2500 or more and 4000 or less, so as to optimize the area of the heat dissipation surface a and improve the heat dissipation performance of the battery cell unit 10.
Referring to fig. 1, in one embodiment of the present utility model, a battery cell 10 may include a battery housing and an explosion-proof valve 11. The cell housing may provide a receiving space for the inner core. The explosion-proof valve 11 may be disposed at any one end of the cell housing for exhausting gas when the cell 10 is thermally out of control, thereby preventing the cell 10 from overheating. Further, the explosion-proof valve 11 may be disposed on any end face where the width side and the thickness side of the cell housing are located.
Referring to fig. 1, in an embodiment of the present utility model, a heat conducting sheet 20 may cover the heat dissipating surface to further conduct out the heat transferred from the heat dissipating surface. The heat conductive sheet 20 may be a heat conductive silicone sheet, or may be a heat conductive sheet 20 made of other materials, and the present utility model is not limited thereto. The thickness of the thermally conductive sheet 20 may be adaptively designed based on the actual battery space and thermal conduction requirements. The length of the heat conductive sheet 20 may be identical to the length of the battery cell 10, or may be set to other lengths based on actual requirements. The width of the heat conductive sheet 20 may be identical to the width of the battery cell 10, may be larger than the width of the battery cell 10, or may be set to other widths based on actual requirements.
Referring to fig. 3, in an embodiment of the present utility model, a liquid cooling plate 30 may be disposed on a plane where the thickness sides and the length sides of the battery cell 10 are located, so as to transfer heat during operation of the battery cell 10. Specifically, the liquid cooling plate 30 may be tiled on a plane where the thickness side and the length side of the electric core unit 10 are located, and heat generated during operation of the electric core unit 10 may be transferred to the liquid cooling plate 30 through the plane where the thickness side and the length side are located. Further, a heat dissipation surface can be extended from one side of the heat conducting fin 20 of the battery cell and is attached to the liquid cooling plate 30, so that heat generated during operation of the battery cell 10 is transferred from the heat dissipation surface to the heat conducting fin 20 and further transferred to the liquid cooling plate 30, and heat of the battery cell 10 exchanges heat with the liquid cooling plate 30, so that heat dissipation performance of the battery cell 10 is improved.
Referring to fig. 3, in one embodiment of the present utility model, a coolant pipe may be disposed in the liquid cooling plate 30, and the coolant pipe may be a plurality of straight pipes, a plurality of U-shaped pipes, a serpentine pipe, or other pipes arranged in parallel. The cooling liquid can be introduced into the cooling liquid pipeline, and can exchange heat with the heat generated by the battery cell unit 10 in the process of cooling liquid circulation, so that the heat dissipation performance of the battery cell is improved. Further, one or more cooling fluid inlets may be provided in the liquid cooling plate 30 to allow cooling fluid to pass therethrough. Likewise, one or more coolant outlets may be provided on the liquid cooling plate 30 to output a coolant. The cooling liquid inlet and the cooling liquid outlet may be disposed on the same side of the liquid cooling plate 30, or may be disposed on different sides of the liquid cooling plate 30.
Referring to fig. 3, the present utility model further provides a battery cell module 40, where the battery cell module 40 may include a plurality of battery cells and a liquid cooling plate 30. The plurality of battery cells may be sequentially arranged along the thickness direction of the plurality of battery cells to form one battery cell module 40. The liquid cooling plate 30 can cover on the plane that the length limit and the thickness limit of a plurality of electric core are located for the heat that the electric core during operation produced can be through thickness limit and the face that the length limit is located transfer to liquid cooling plate 30, and the heat that the electric core during operation was transferred to conducting strip 20 from the radiating surface can further be transferred to liquid cooling plate 30, so that the heat of electric core carries out heat transfer with liquid cooling plate 30, thereby improves the heat dispersion of electric core. In order to further improve the heat dissipation effect of the battery cells in the battery cell module 40, the ratio of the area of the heat dissipation surface a of the battery cells to the thickness of the battery cells may be set to D, and the value of D may be set in the range of 2500 or more and 4000 or less, so as to optimize the area of the heat dissipation surface and improve the heat dissipation performance of the battery cells, thereby ensuring the heat dissipation effect of the battery cell module 40.
Referring to fig. 3, in one embodiment of the present utility model, the heat conductive sheet 20 may be disposed between any two adjacent cells in the cell module 40 to transfer heat from the heat dissipation surface of the cells. Further, all the heat conducting fins 20 can extend between adjacent battery cells and be attached to the liquid cooling plate 30, so that heat on the heat conducting fins 20 can be better transferred to the liquid cooling plate 30 for heat exchange, and the heat dissipation performance of the battery cells is improved.
Referring to fig. 3, in an embodiment of the present utility model, a coolant pipe is provided inside the liquid cooling plate 30 to exchange heat with the coolant. In particular, the coolant conduit may be a plurality of straight tubes arranged in parallel, a plurality of U-shaped tubes, serpentine tubes, or other forms of tubes. The cooling liquid can be introduced into the cooling liquid pipeline, and heat exchange can be carried out between the cooling liquid and heat generated by the battery cell in the flowing process of the cooling liquid, so that the heat dissipation performance of the battery cell is improved. Further, one or more cooling fluid inlets may be provided in the liquid cooling plate 30 to allow cooling fluid to pass therethrough. Likewise, one or more coolant outlets may be provided on the liquid cooling plate 30 to output a coolant. The cooling liquid inlet and the cooling liquid outlet may be disposed on the same side of the liquid cooling plate 30, or may be disposed on different sides of the liquid cooling plate 30.
The utility model also provides a battery pack. The battery pack may include a plurality of cell modules 40, and each cell module 40 may include a plurality of cells arranged in sequence. Wherein, a plurality of cell modules 40 are installed in the battery pack case to form one battery pack. In order to ensure the heat dissipation performance of the battery pack, the surfaces of the battery cell modules 40 of the battery pack can be covered with a whole liquid cooling plate 30, the liquid cooling plate 30 can be integrally arranged on the battery pack shell, and cooling liquid in the battery thermal management system can be introduced into the liquid cooling plate 30 to exchange heat. Specifically, heat generated during operation of the cells in the battery pack can be transferred to the liquid cooling plate 30 through the surfaces of the thickness side and the length side. Further, the heat conducting fins 20 between the plurality of electric cores inside the battery pack may extend out of the heat dissipating surface and be attached to the liquid cooling plate 30. The heat generated during the operation of the battery cell 10 can be transferred from the heat dissipation surface to the heat conduction sheet 20 and further transferred to the liquid cooling plate 30, so that the heat of the battery cell 10 exchanges heat with the liquid cooling plate 30, and the heat dissipation performance of the battery cell 10 is improved. In order to further improve the heat dissipation effect of the battery cell inside the battery pack, the ratio of the area of the heat dissipation surface A of the battery cell to the thickness of the battery cell can be set to be D, and the numerical value of D can be set in the range of 2500 or more and 4000 or less so as to optimize the area of the heat dissipation surface and improve the heat dissipation performance of the battery cell, thereby ensuring the heat dissipation effect of the battery pack.
In summary, through the battery cell, the battery cell module and the battery pack provided by the utility model, the heat dissipation performance of the battery cell can be improved, and the heat dissipation effect of the battery cell module and the battery pack is ensured.
In the description of the present specification, the descriptions of the terms "present embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The examples are not intended to be exhaustive or to limit the utility model to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. A cell, comprising:
the battery cell unit is of a cuboid structure; and
the heat conducting sheet is arranged on a radiating surface formed by the periphery of the length edge of the battery cell unit and the width edge of the battery cell unit;
the ratio of the area of the radiating surface to the thickness of the battery cell monomer is D, and D is 2500 or more and 4000 or less.
2. The cell of claim 1, wherein a liquid cooling plate is disposed on a plane where a length side of the cell unit and a thickness side of the cell unit are located.
3. The cell of claim 2, wherein one side of the thermally conductive sheet extends beyond the heat dissipating surface and is attached to the liquid cooling plate.
4. The cell of claim 1, wherein the cell unit comprises:
the battery cell shell is internally provided with a core body; and
and the explosion-proof valve is arranged at one end of the battery cell shell.
5. The cell of claim 4, wherein the explosion-proof valve is located on an end face of the cell housing where a width side and a thickness side are located.
6. A battery cell module, comprising:
the plurality of electric cores are sequentially arranged along the thickness direction of the plurality of electric cores; and
the liquid cooling plates are covered on planes where the length edges and the thickness edges of the plurality of electric cores are located;
wherein, the electric core includes:
the battery cell unit is of a cuboid structure; and
the heat conducting sheet is arranged on a radiating surface formed by the periphery of the length edge of the battery cell unit and the width edge of the battery cell unit;
the ratio of the area of the radiating surface to the thickness of the battery cell monomer is D, and D is 2500 or more and 4000 or less.
7. The battery cell module of claim 6, wherein the thermally conductive sheet is disposed between any two adjacent battery cells.
8. The battery cell module of claim 7, wherein all the heat conducting fins extend between adjacent battery cells and are attached to the liquid cooling plate.
9. The battery cell module of claim 8, wherein a coolant pipe is provided inside the liquid cooling plate.
10. A battery pack comprising a plurality of cell modules according to any one of claims 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320623290.XU CN219591460U (en) | 2023-03-27 | 2023-03-27 | Battery cell, battery cell module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320623290.XU CN219591460U (en) | 2023-03-27 | 2023-03-27 | Battery cell, battery cell module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219591460U true CN219591460U (en) | 2023-08-25 |
Family
ID=87697472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320623290.XU Active CN219591460U (en) | 2023-03-27 | 2023-03-27 | Battery cell, battery cell module and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219591460U (en) |
-
2023
- 2023-03-27 CN CN202320623290.XU patent/CN219591460U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210367288A1 (en) | Power battery pack having heat superconducting heat exchanger and power battery pack system | |
| KR20120004322A (en) | Battery module | |
| TW201302044A (en) | Cooling system | |
| KR20230036158A (en) | Cell module liquid cooling structure and battery pack using the same | |
| CN111092277A (en) | Honeycomb type micro-channel cooling plate for battery thermal management and application thereof | |
| CN112993437A (en) | Closed energy storage system with heat dissipation function | |
| CN211829107U (en) | Honeycomb type micro-channel cooling plate for battery thermal management | |
| CN210074099U (en) | Battery module, battery pack, electric vehicle and power grid system | |
| CN219591460U (en) | Battery cell, battery cell module and battery pack | |
| CN218498175U (en) | Battery module and battery pack | |
| CN217655950U (en) | Battery core, battery module and vehicle | |
| CN219086074U (en) | Battery cooling device | |
| CN221080118U (en) | Battery cell and battery module | |
| CN211178075U (en) | Liquid injection seal radiator | |
| CN211178077U (en) | Ohm type special-shaped seal radiator | |
| CN214411317U (en) | Spiral battery heat exchanger, battery pack and new energy automobile | |
| CN217280936U (en) | Cold and hot dual-purpose thermal management structure of battery package | |
| CN220653860U (en) | Heat radiation structure and vehicle-mounted controller | |
| CN221352920U (en) | Radiator, battery module and power consumption device | |
| CN210575440U (en) | Oil cooling and heat dissipation splicing sheet for transformer oil tank | |
| CN218160566U (en) | Air-cooled battery box | |
| CN219457747U (en) | Battery module and battery box assembly | |
| CN220021261U (en) | Underwater vehicle | |
| CN219419164U (en) | Immersed cooling battery module and battery pack | |
| CN219144276U (en) | Battery pack structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |