CN210224223U - Battery with a battery cell - Google Patents
Battery with a battery cell Download PDFInfo
- Publication number
- CN210224223U CN210224223U CN201920301178.8U CN201920301178U CN210224223U CN 210224223 U CN210224223 U CN 210224223U CN 201920301178 U CN201920301178 U CN 201920301178U CN 210224223 U CN210224223 U CN 210224223U
- Authority
- CN
- China
- Prior art keywords
- heat sink
- battery
- heat
- battery according
- edge region
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to a battery. The battery according to the invention comprises at least one heat sink (1) and one battery cell (2), wherein the battery cell (2) is connected to the heat sink (1) in order to dissipate heat, and wherein the heat sink (1) branches off in the edge region.
Description
Technical Field
The utility model relates to a battery.
Background
US 8305104B 2 discloses a battery having heat sinks and battery cells arranged in a stacked arrangement.
SUMMERY OF THE UTILITY MODEL
Against this background, it is an object of the present invention to provide an improved battery.
The battery according to the invention comprises at least one heat sink and one battery cell, wherein the battery cell is connected with the heat sink in order to dissipate heat, and wherein the heat sink branches off in the edge region.
Providing such a branch may achieve a number of advantages. For example, the cross section of the cooling fin in the edge region can be enlarged, and for example, improved heat dissipation at a cooling plate connected to the cooling fin is thereby enabled, wherein the branch serves to reduce the weight. Furthermore, the branch can be used to form a cavity for the passage of a cooling medium through it by means of a coolant device to ensure advantageous heat dissipation. In this case, a preferred embodiment of the invention provides for the elimination of an additional cooling plate, which achieves advantages with regard to weight, component complexity and/or installation space.
The cavity may be formed by the branches alone or in concert with other components. The battery cells may be in direct contact with the heat sink or connected to the heat sink via a heat transfer medium.
Further advantageous embodiments of the invention are described below.
Drawings
Preferred embodiments are described in detail with the aid of the following figures. The drawings show
Fig. 1 shows a cross-section of a first embodiment of a battery according to the invention, and
fig. 2 shows a variant of the heat sink.
Detailed Description
The battery shown in fig. 1 comprises a heat sink 1 and a battery cell 2, wherein the battery cell is connected to the heat sink 1 for heat dissipation and wherein the heat sink 1 branches off at the edge region.
The heat sink 1 branches off in the edge region into a first arm and a second arm. The material thickness of the respective limb corresponds to the material thickness of the fin before branching, so that the fin 1 overall has a greater material thickness in the edge region than in the center of the fin 1. In a variant, the material thickness of the arms can be formed to be smaller or thicker than the material thickness in front of the edge region. The arms terminate on a large-area contact surface 6 of the heat sink 1, which is capable of good heat dissipation. The contact surface 6 is oriented substantially perpendicular to the plane of the heat sink 1, resulting in a T-shaped profile. In this variant, a cavity 4 is formed, which is surrounded by the branches and the contact surface 6.
The illustrated battery includes a plurality of heat sinks 1 and battery cells 2, wherein correspondingly one battery cell 2 is arranged on the upper side of the heat sink 1 and one battery cell 2 is arranged on the lower side of the heat sink. The cells thus formed by the heat sink 1 and the battery cells 2 arranged on both sides are arranged in a mutually stacked planar arrangement and are separated from one another by the compressible layer 5. Advantageously, this region is thermally isolated (plane of symmetry) and can therefore be preferred for mechanical compensation elements with poor thermal conductivity (e.g. foam materials). These units can also be placed directly on each other when mechanical compensation is not required. In another embodiment, the layer may additionally or alternatively be thermally insulating.
Furthermore, the heat sink 1 is formed mirror-symmetrically in the opposing edge regions, which allows heat to be dissipated on both sides of the stack. In this embodiment the heat sink 1 is substantially flat and the battery unit is rectangular, wherein the thickness/height is substantially smaller than the width and length.
Furthermore, the battery comprises a cooling plate 3, wherein at least one heat sink 1 is connected to the cooling plate 3 in the edge region in order to dissipate heat. Two coolant-conducting cooling plates 3 are provided here, which are arranged on one side of the stack and are preferably connected over their entire surface to the contact surfaces 6 of the respective cooling ribs 1. The connection can be made, for example, by means of a thermally conductive medium, for example a thermally conductive adhesive. Alternatively, air may be used for cooling. In one variant, the cooling plate 3 comprises fins on the outside, through which the cooling air flows.
By means of the stacked configuration and the thermal connection of the heat sink to the two battery cells, a particularly compact construction can be achieved. The branching and enlargement of the cross section of the heat sink 1 in the edge region makes it possible to better transfer heat from the region of the battery cells 2 to the cooling plate 3 and to discharge it therefrom. Heat can be dissipated on both sides of the heat sink 1, which also contributes to good heat dissipation. This embodiment is therefore particularly suitable for high-voltage batteries with voltages above 60V. This embodiment is equally well suited for batteries with high power, especially 48V.
The heat sink 1 is made by means of an extrusion method and is one-piece. The extrusion method enables cost-effective production of shapes that are more complex than heat sinks formed from simple metal sheets. The integral type also limits the production cost. Aluminum or aluminum alloys are particularly suitable as materials, since they are lightweight on the one hand and easily heat-conducting on the other hand.
Fig. 2 shows an alternative embodiment. In this variant, the heat sink 1 is formed such that a cavity 4 is formed by the branches, which cavity is connected to a coolant device designed to guide a coolant through the cavity 4 in order to dissipate heat. A compact stack of battery cells 2, heat sink 1 and insulating layer 5 can be constructed in this way according to the embodiment shown in fig. 1. The cooling plate 3 can be omitted because the heat sink 1 can take on this function.
Regarding the configuration, the thickness/height of the battery cell is advantageously made in the range of 5mm to 15mm, the thickness of the insulating layer is 1mm to 2mm and the thickness of the heat sink is 0.8mm to 1.5 mm.
The battery according to the invention is particularly suitable for applications in the automotive field, for example as a battery for the energy supply of an electric motor for an electrically driven vehicle or a hybrid vehicle.
Claims (10)
1. A battery comprising at least one heat sink (1) and one battery cell (2), characterized in that the battery cell (2) is connected to the heat sink (1) in order to dissipate heat, and the heat sink (1) branches off in the edge region.
2. The battery according to claim 1, characterized in that the branches form a cavity (4).
3. The battery according to claim 1 or 2, characterized in that the heat sink (1) is made by means of an extrusion method.
4. The battery according to claim 1 or 2, characterized in that the heat sink (1) has a greater material thickness in the edge region than in the center of the heat sink (1).
5. The battery according to claim 1 or 2, characterized in that the heat sink (1) has a contact surface (6) at the edge, which contact surface is designed in a T-shape.
6. The battery according to claim 1 or 2, characterized in that the heat sink (1) is designed in one piece.
7. The battery according to claim 1 or 2, characterized in that the battery comprises a cooling plate (3), wherein the at least one heat sink (1) is connected with the cooling plate (3) in the edge region for heat dissipation.
8. The battery according to claim 1 or 2, characterized in that the battery furthermore has one further battery unit (2), wherein correspondingly one battery unit (2) is arranged on the upper side of the heat sink (1) and one battery unit (2) is arranged on the lower side of the heat sink.
9. The battery according to claim 1 or 2, characterized in that at least two units are arranged in a stack and separated from each other by a layer (5), the at least two units having one heat sink (1) and two battery units (2), respectively, wherein one battery unit (2) is arranged on the upper side of the heat sink (1) and one battery unit (2) is arranged on the lower side of the heat sink.
10. The battery according to claim 2, characterized in that the cavity (4) is connected to a coolant device which is designed to conduct a coolant through the cavity (4) in order to dissipate heat.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018105491.2 | 2018-03-09 | ||
| DE102018105491 | 2018-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210224223U true CN210224223U (en) | 2020-03-31 |
Family
ID=67701795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920301178.8U Active CN210224223U (en) | 2018-03-09 | 2019-03-08 | Battery with a battery cell |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210224223U (en) |
| DE (1) | DE102019105554A1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8305104B2 (en) | 2009-03-26 | 2012-11-06 | Electro Scientific Industries, Inc. | Testing and sorting system having a linear track and method of using the same |
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2019
- 2019-03-05 DE DE102019105554.7A patent/DE102019105554A1/en active Pending
- 2019-03-08 CN CN201920301178.8U patent/CN210224223U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019105554A1 (en) | 2019-09-12 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |