专利摘要:
In a rechargeable electric battery (1), in particular a high-voltage battery, with at least one stack (2) of lined-up battery cells (3), at least two cell arresters (5) of adjacent battery cells (3) are electrically conductive with each other via at least one cell connector (6) are connected. In order to enable efficient heat removal, at least one cooling channel (9) through which a cooling medium flows is preferably parallel in the region of the cell outgoing conductors (5) and / or cell connectors (6), essentially transversely to the stacking direction (2a) of the battery cells (3) a the Zellableiter (5) having narrow side (7) at least one battery cell (3) arranged.
公开号:AT511666A1
申请号:T954/2011
申请日:2011-06-30
公开日:2013-01-15
发明作者:Michael Ing Koeroesi;Edward Yankoski;Harald Stuetz;Martin Michelitsch;Mauro Aiolfi
申请人:Avl List Gmbh;
IPC主号:
专利说明:

* · 1 56208 4 · 4 «* *«
The invention relates to a rechargeable electric battery, in particular high-voltage battery, preferably for an electric vehicle, with at least one stack of juxtaposed battery cells, wherein at least two Zellableiter of adjacent battery cells via at least one cell connector are electrically connected to each other, and at least one of a cooling medium flowed through the cooling channel ,
High-voltage batteries, in particular with lithium-ion battery cells, can only be operated within a precisely defined temperature window. The tempering of high-voltage batteries is usually carried out by means of a closed coolant circuit or by means of an open cooling air system.
WO 2010/053689 A2 describes a battery arrangement with a housing and a plurality of Uthium-ion cells, which are arranged side by side. The housing is flowed through for cooling with a thermally conductive, electrically insulating fluid.
From WO 2010/067944 Al a battery with juxtaposed stack of battery cells is known, wherein battery cells are cooled by cooling air.
The object of the invention is to achieve an efficient cooling in a battery of the type mentioned. Another object is to allow easy manufacture of the battery.
According to the invention, this is achieved by arranging the cooling channel in the region of the cell arresters and / or cell connectors, essentially transversely to the stacking direction of the battery cells, preferably parallel to a narrow side of at least one battery cell having the cell arresters.
The cooling channel is formed by a cooling tube, preferably made of plastic or electrically insulated metal.
In order to realize a well-defined installation situation of the battery cells, the battery cells are in a receiving part, for example made of plastic 2 * »
** '···· · I · * »« * * * «« «arranged, wherein preferably the cooling channel is arranged in or on the receiving part, particularly preferably fixedly connected to the receiving part.
In order to keep the installation effort as low as possible, it is particularly advantageous if the connection between the cell conductors of at least two battery cells and / or the cell arrester with the cell connector is formed by a positive connection. In this case, advantageously at least one cell arrester, preferably two cell arresters of two adjacent battery cells, is at least partially wound around at least one cooling channel. This allows effective heat transfer from the cell arresters into the cooling channel.
Furthermore, the cell connector is placed on the cooling tube, wherein preferably the Zellableiter of two adjacent battery cells, between the cooling tube and cell connectors are arranged.
A particularly simple assembly and disassembly is achieved when the cell connector via a positive connection directly or indirectly with at least one battery cell is preferably detachably connected, wherein preferably the cell connector is connected via the positive connection with at least one receiving part.
The preferably a U-profile having cell connector has a defined bias and is plugged onto the cooling tube, so that the cell connector presses the cell arrester against the outer jacket of the cooling tube. This allows a particularly good heat dissipation from the battery cells.
The positive connection is advantageously formed by a snap and / or latching connection. It can be provided that at least a first part of the positive connection is formed by the cell connector and a second part of the positive connection by the receiving part.
By itself, an electrical contacting of the cell conductors with the cell connectors can be achieved by the positive connection. By a sufficiently high bias of the cell connector can be avoided accidental release by vibration or the like.
In some cases, however, an additional safeguarding of the electrical connection can take place by at least one cell arrester and a cell connector being connected to one another inseparably by a welded connection, preferably a laser welding connection, or a clinching connection. In clinching, two or more sheets are deformed, creating a tight fit between the sheets.
The invention will be explained in more detail below with reference to FIG.
1 shows a stack of battery cells of a battery according to the invention in an oblique view, Fig. 2 cell connector of this battery in an oblique view,
3 shows the stack in a further oblique view, FIG. 4 shows the stack in a cut oblique view according to line IV-IV in FIG. 3 with dismounted cell connectors, FIG. 5 shows the stack in a cross-sectional view similar to FIG. 4 with assembled cell connectors and FIG Fig. 6 shows a detail of the stack in a further oblique view.
In the exemplary embodiment, the rechargeable battery 1, for example for an electrically operated vehicle, has at least one stack 2 of battery cells 3 arranged next to one another and clamped in the stacking direction 2a. The battery cells 3 are arranged in a single or multi-part receiving part 4 made of plastic, wherein the cell arrester 5 are connected by adjacent battery cells 3 via a cell connector 6 with each other electrically conductive.
In the area of the cell arrester 5, a cooling channel 9 formed by a cooling tube 8 made of plastic or insulated metal is arranged in each case in the region of the cell arrester 5 between two battery cells 3, approximately parallel to the narrow sides 7 of the battery cells 3 and the cell arrester 5 , The cooling channels 9 are flowed through by a cooling liquid and serve to temper the battery cells 3.
The Zellableiter 5 of electrically interconnected battery cells 3 are each wrapped around a coolant cooling tube 8 and wrapped with a cell connector 6, which is fitted over the cooling tube 8, enclosed.
The cell connectors 6 are each connected via a positive connection 10, for example a latching and / or snap connection 11, with the receiving part 4, wherein each formed with a U-shaped cell connector 6 include the cooling tubes 8. As a result, we realize a direct cooling of the cell conductors 5 and cell connectors 6 by contact with the coolant-carrying cooling tube 8, as a result of which the heat produced can be dissipated directly without the remaining battery cell 3 being heated.
During assembly, the cell arrester 5 are guided in the receiving part 4 and pre-positioned. Furthermore, the cooling pipe 8 is received by the receiving part 4. The cell conductors 5 are then placed around the cooling tube 8 and fixed by means of a cell connector 6 on the cooling tube 8. Cell arrester 5 and cell connector 6 thereby enclose the cooling tube 8, which is held by the cell connector 6 on the receiving part 4. Each cell connector 6 is designed so U-shaped that unintentional release of the connection is avoided. The bias of the cell connector 6 is sized so that no further connection between the cell conductors 5 and the cell connector 6 is required. A sufficient thermal connection between cell conductor 5, cell connector 6 and cooling tube 8, as well as electrical connection between cell conductor 5 and cell connector 6 is thus produced by the positive connection 10 between the cell connector 6 and receiving part 4. Inadvertent release is hardly possible with a suitable shaping of receiving part 4 and cell connector 6. To improve the holding force, preload and surface pressure between Zellableiter 5 and cell connector 6, the cell connector 6 may have on its underside not shown counter-holder. Nevertheless, for safety, the cell conductors 5 with the cell connectors 6 can also be connected to one another by laser welding or clinching.
A first part 10a of the positive connection 10 is formed by the receiving part 4, a reciprocally shaped second part 10b of the connection 10 through the cell connector 6.
The arrangement of the cooling tube 8 in the region of the cell arrester 5 and cell connector 6 allows direct heat dissipation from the metallic contacts of the battery 1 in a very space-saving manner. The snap or * * * *
Locking connection 11 between the cell connector 6 and receiving part 4 allows a simple and cost-effective production.
权利要求:
Claims (15)
[1]
A rechargeable electric battery (1), in particular a high-voltage battery, preferably for an electric vehicle, having at least one stack (2) of lined-up battery cells (3), at least two cell conductors (5) of adjacent battery cells (3) being connected via at least one cell connector (3). 6) are electrically conductively connected to each other, as well as with at least one of a cooling medium flowed through the cooling channel (9), characterized in that the cooling channel (9) in the region of Zellableiter (5) and / or cell connector (6), substantially transversely to the stacking direction (2a) of the battery cells (3), preferably parallel to a Zellableiter (5) having narrow side (7) of at least one battery cell (3) is arranged.
[2]
2. Battery (1) according to claim 1, characterized in that the cooling channel (9) by a cooling tube (8), preferably made of plastic or electrically insulated metal is formed.
[3]
3. Battery (1) according to claim 1 or 2, characterized in that at least one battery line (3) is received by a preferably made of plastic receiving part (4),
[4]
4. Battery (1) according to one of claims 1 to 3, characterized in that the cooling channel (9) arranged in or on the receiving part (4), preferably fixedly connected to the receiving part (4).
[5]
5. Battery (1) according to claim 4, characterized in that the preferably as a cooling tube (8) formed cooling channel (9) by at least one cell connector (6) on the receiving part (4) is fixed.
[6]
6. Battery (1) according to any one of claims 1 to 5, characterized in that the connection between the Zellableitern (5) at least two battery cells (3) and / or the Zellableiter (5) with the cell connector (6) by a positive connection (10) is formed. * * * * * ι * I ^ · * * * ·· * * / * · ** · * # · «······· * * ** ** > I · i · · *
[7]
7. Battery (1) according to one of claims 2 to 6, characterized in that at least one Zellabieiter (5), preferably two Zellabieiter (5) of two adjacent battery cells (3), at least partially wrapped around at least one cooling tube (8) ,
[8]
8. Battery (1) according to one of claims 2 to 7, characterized in that the cell connector (6) is placed or clamped on the cooling tube (8).
[9]
9. Battery (1) according to claim 8, characterized in that at least one cell arrester (5) of a battery cell (3), preferably two Zellabieiter (5) of two adjacent battery lines (3), between cooling tube (8) and cell connector (6) is arranged.
[10]
10. Battery (1) according to one of claims 1 to 9, characterized in that the cell connector (6) via a positive connection (10) directly or indirectly with at least one battery cell (3) is preferably releasably connected.
[11]
11. Battery (1) according to claim 10, characterized in that the cell connector (6) via the positive connection (10) with at least one receiving part (4) is connected.
[12]
12. Battery (1) according to one of claims 1 to 11, characterized in that the preferably a U-profile having cell connector (6) is attached with a defined bias on the cooling tube (8).
[13]
13. Battery (1) according to one of claims 1 to 12, characterized in that at least a first part (10a) of the positive connection by the receiving part (4) and a second part of the positive connection by the cell connector (6) 1 is formed ,
[14]
14. Battery (1) according to one of claims 1 to 13, characterized in that the positive connection (10) by a snap connection and / or latching connection (11) is formed. " * " · 8th
[15]
15. Battery (1) according to one of claims 1 to 14, characterized in that at least one ZellabJeiter (5) and a Zeilverbinder (6) by a welded joint, preferably laser welding connection, or a clinching connection are connected to each other inextricably.

2011 06 30 Fu / St
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法律状态:
2022-02-15| MM01| Lapse because of not paying annual fees|Effective date: 20210630 |
优先权:
申请号 | 申请日 | 专利标题
ATA954/2011A|AT511666B1|2011-06-30|2011-06-30|RECHARGEABLE ELECTRIC BATTERY|ATA954/2011A| AT511666B1|2011-06-30|2011-06-30|RECHARGEABLE ELECTRIC BATTERY|
PCT/EP2012/062353| WO2013000908A1|2011-06-30|2012-06-26|Rechargeable electric battery|
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